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Journal articles on the topic 'Brunauer-Emmett-Teller analysis'

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Published: 2 June 2025
Last updated: 31 July 2025

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1

Hobson, J. P. "Analysis of ultrahigh vacuum isotherm data with the Brunauer–Emmett–Teller equation." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 14, no. 3 (1996): 1277–80. http://dx.doi.org/10.1116/1.579941.

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2

Bin Mohd Khairulzaim, Ahmad Adzhar, Md Rezaur Rahman, Lidyana Roslan, Muhammad Khusairy Bin Bakri, Afrasyab Khan, and Mohammed Mahbubul Matin. "Analysis of char prepared by pyrolysis of dabai (Canarium odontophyllum) nutshells as a potential precursor of biocarbon used for wastewater treatment." BioResources 16, no. 3 (2021): 5036–46. http://dx.doi.org/10.15376/biores.16.3.5036-5046.

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Dabai (Canarium odontophyllum) nutshells have considerable potential to be used as a viable precursor for biomass-based activated carbon. The material was carbonized at a temperature of 700 °C for 2 h, at a heating rate of 10 °C/min under nitrogen gas flow. The char was analyzed the following ways: percentage of yield, percentage of ash content, Fourier transform infrared spectroscopy, scanning electron microscopy with energy dispersive x-ray analysis, and Brunauer, Emmett, and Teller surface area. The char had a maximum Brunauer, Emmett, and Teller surface area of 428 m2/g and the nitrogen ad
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3

Bao, Yan, Chunhua Shi, Yongqiang Yang, Jianzhong Ma, and Risong Sha. "Effect of hollow silica spheres on water vapor permeability of polyacrylate film." RSC Advances 5, no. 15 (2015): 11485–93. http://dx.doi.org/10.1039/c4ra14649b.

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Hollow silica spheres with different hollow size and shell thickness were synthesized via a template method using PS spheres as templates and characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction and Brunauer–Emmett–Teller analysis.
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4

Andrew Swamidoss, Caroline, Mahshab Sheraz, Ali Anus, et al. "Effect of Mg/Al2O3 and Calcination Temperature on the Catalytic Decomposition of HFC-134a." Catalysts 9, no. 3 (2019): 270. http://dx.doi.org/10.3390/catal9030270.

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This paper evaluated the effect of calcination temperature and the use of Mg/Al2O3 on the decomposition of HFC-134a. Two commercialized catalysts, Al2O3 and Mg/Al2O3, were calcined at two different temperatures (500 and 650 °C) and their physicochemical characteristics were examined by X-ray diffraction, Brunauer–Emmett–Teller analysis, and the temperature-programed desorption of ammonia and carbon dioxide analysis. The results show that, in comparison to Al2O3, 5% Mg/Al2O3 exhibited a larger Brunauer–Emmett–Teller surface area and higher acidity. The relative amount of strong acid sites of th
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5

Omidi, Mohammad Hassan, Mohammad Hossein Ahmadi Azqhandi, and Bahram Ghalami-Choobar. "Sonochemistry: a good, fast and clean method to promote the removal of Cu(ii) and Cr(vi) by MWCNT/CoFe2O4@PEI nanocomposites: optimization study." New Journal of Chemistry 42, no. 19 (2018): 16307–28. http://dx.doi.org/10.1039/c8nj03277g.

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In this study, branched polyethylenimine (PEI) loaded on magnetic multiwalled carbon nanotubes (MWCNT/CoFe<sub>2</sub>O<sub>4</sub>) was synthesized and characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) analysis and Fourier transform infrared spectroscopy (FTIR).
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6

Kononova, Irina, Vyacheslav Moshnikov, and Pavel Kononov. "SnO2-Based Porous Nanomaterials: Sol-Gel Formation and Gas-Sensing Application." Gels 9, no. 4 (2023): 283. http://dx.doi.org/10.3390/gels9040283.

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Porous nanocomposites using two (tin dioxide–silica dioxide) and three (tin dioxide–indium oxide-silica dioxide)-component systems for gas sensors were created with the sol–gel method. To understand some of the physical–chemical processes that occurred during the adsorption of gas molecules on the surface of the produced nanostructures, two models—the Langmuir model and the Brunauer–Emmett–Teller theory—were used to carry out calculations. The results of the phase analysis concerning the interaction between the components during the formation of the nanostructures were obtained through the use
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7

Menshova, Irina I., Yulia M. Averina, and Elena Zabolotnaya. "CARBON FIBERS IN THE ADSORPTION PROCESSES." ChemChemTech 66, no. 3 (2023): 52–58. http://dx.doi.org/10.6060/ivkkt.20236603.6715.

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The parameters of the porous structure of carbon fiber sorbents based on polyacrylonitrile fiber of different activation have been studied. Fibrous carbon sorbents for the adsorption of water-soluble organic compounds have been analyzed. Sorption isotherms were constructed in the coordinates of the Langmuir equation of the studied substances on non-activated and activated carbon fibers, as well as Brunauer-Emmett- Teller isotherms, which allow one to reliably calculate the specific surface area of a carbon fiber sorbent. The sorption isotherms are satisfactorily described by the Freundlich equ
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8

Zou, Jie, Chunyan Fan, Yun Jiang, et al. "A preliminary study on assessing the Brunauer-Emmett-Teller analysis for disordered carbonaceous materials." Microporous and Mesoporous Materials 327 (November 2021): 111411. http://dx.doi.org/10.1016/j.micromeso.2021.111411.

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9

Kim, Jincheol, Yeongmin Jo, Jonggi Jeon, and Taegyu Kim. "Study on the State Change of Ir/Al2O3 Catalyst by Decomposition of Ammonium Dinitramide (ADN) Based Low-Toxicity Monopropellant." Journal of Nanoscience and Nanotechnology 20, no. 9 (2020): 5780–82. http://dx.doi.org/10.1166/jnn.2020.17642.

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The change of the Ir/Al2O3 catalyst before and after the reaction with ADN based low-toxicity monopropellant was confirmed. The catalyst were recovered after decomposition reaction with propellant in a monopropellant thruster at 350 °C preheating condition. Catalyst analysis was performed using a scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET) analyzer. The change of the catalyst specific devices.
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10

Khudair, Douha S., and Yasser I. Abdul-Aziz. "Preparation and Characterization of Biochar from New Precursor." Al-Nahrain Journal for Engineering Sciences 27, no. 4 (2024): 441–49. https://doi.org/10.29194/njes.27040441.

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The purpose of this study is to investigate the potential of biochar derived from Peganum harmala (Pgh) seeds as an adsorbent material for wastewater treatment. Biochar is a cost-efficient, ecologically friendly, and effective bio-sorbent for a wide range of pollutants in wastewater. Researchers are investigating the production of biochar from novel biomass sources. Phosphoric acid (H3PO4) was utilized in a chemical activation technique to produce biochar at various concentrations (20%, 30%, and 40%). The pyrolysis process lasted three hours at 600°C in a tube furnace with an inert nitrogen ga
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11

Anbarasu, M., A. Gurusamy, and S. Saravanan. "Properties of different graded coir pith by Keen-Raczkowski box and Brunauer-Emmett-Teller analysis." Journal of Environmental Biology 45, no. 3 (2024): 257–62. http://dx.doi.org/10.22438/jeb/45/3/mrn-5233.

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Aim: To evaluate the physical and hydrological properties of different graded coir pith and composted coir pith (CPOM) following the Keen-Raczkowski box and Brunauer-Emmett-Teller (BET) analysis. Methodology: The coir pith was collected and composted by PITH PLUS (Pleurotus-sajor-caju). Thereafter, the coir pith and composted coir pith were segregated into different groups based on the size of the particles as 1.0 mm (1000 microns), 0.5 mm (500 microns), and 0.25 mm (250 microns). Based on particle size, the hydrological properties of coir pith and composted coir pith were determined. The phys
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12

Tariq, Rasha, and Dunya Edan Al-Mammar. "Synthesis, Characterization and Surface Properties of Nano-TiO2 Using a Novel Leaf Extracts." Ibn AL-Haitham Journal For Pure and Applied Sciences 36, no. 4 (2023): 221–31. http://dx.doi.org/10.30526/36.4.3161.

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The main focus of research is on the nature of applications in the fields of science and technology, particularly nanotechnology. In this paper, a simple, non-toxic, inexpensive, and environmentally friendly green method was used to synthesize TiO2 nanoparticles using the extraction of portulacaria afra plant leaves and TiCl4 as a precursor. The synthesized titanium dioxide nanoparticles were characterized by scanning electron microscopy, atomic force microscopy, X-ray diffraction patterns, Fourier transform infrared spectroscopy, and Brunauer-Emmett-Teller analysis. The SEM image of TiO2 nano
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13

Gelb, Lev D., and K. E. Gubbins. "Characterization of Porous Glasses: Simulation Models, Adsorption Isotherms, and the Brunauer−Emmett−Teller Analysis Method." Langmuir 14, no. 8 (1998): 2097–111. http://dx.doi.org/10.1021/la9710379.

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14

Kang, Shi Zhao, Tan Wu, Xiang Qing Li, Qi Fan Wang, and Jin Mu. "Preparation of CuO-Decorated Core-Shell Montmorillonite-TiO2 Colloids and their Photocatalytic Activity for Hydrogen Evolution from Water." Advanced Materials Research 724-725 (August 2013): 740–43. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.740.

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CuO-decorated core-shell montmorillonite-TiO2 colloids were prepared and characterized with transmission electron microscope, powder X-ray diffraction analysis, Brunauer-Emmett-Teller analysis and UV-vis spectrua. Meanwhile, their photocatalytic activity for hydrogen evolution from water was explored under UV irradiation using methanol as a sacrificial reagent. The results indicate that they are an efficient photocatalyst with a rate of H2 evolution of 219 μmol·h-1·g-1 which is higher than that of anatase TiO2 nanoparticles.
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15

Iram, Shamaila, Muhammad Imran, Farah Kanwal, Shoomaila Latif, and Zafar Iqbal. "Bismuth and lead based metal organic frameworks: morphological, luminescence and Brunauer-Emmett-Teller (BET) studies." Materials Science-Poland 38, no. 1 (2020): 132–37. http://dx.doi.org/10.2478/msp-2020-0021.

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AbstractBiphenyl-4,4′-dicarboxylic acid (H2BDA) was used as an organic linker to synthesize bismuth and lead based organic frameworks (1 and 2). The structural/morphological studies of these metal organic frameworks (MOFs) were done using UV-Vis, Fourier transform infrared spectroscopy (FT-IR), 1H NMR, energy dispersive spectroscopy (EDXS), scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and powder X-ray diffraction method. Surface area as determined by Brunauer-Emmett-Teller (BET) studies revealed better N2 gas adsorption for MOF (1) compared to MOF (2). Both these MOFs e
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16

Abdulkadir, Yakubu, K. A. Bichi, F. H. Garba, et al. "PROCESS FOR CHROMIUM (VI) REMOVAL FROM MECHANIZED TANNERY WASTEWATER USING ACTIVATED CARBON OBTAINED FROM TANNERY SOLID WASTES." FUDMA JOURNAL OF SCIENCES 5, no. 1 (2021): 364–71. http://dx.doi.org/10.33003/fjs-2021-0501-577.

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This study offers an integrated process for treatment and recycling of tannery waste, it has a dual purpose. First the activated carbon has been prepared from leather shaving and buffing dust by physical activation. Both the raw material (leather waste) and the prepared activated carbon were analyzed by DTG, Thermo Gravimetric Analysis TGA, and scanning electron microscope. The adsorption tests of methylene blue and iodine onto the raw material and the prepared adsorbent were carried out and it was found that the adsorption capacity of the activated carbon was enhanced by the physical activati
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17

Tsacheva, Ivelina, Adriana Gigova, Ognian Dimitrov, Mariela Dimitrova, and Dzhamal Uzun. "Physicochemical study of natural zeolite modified with lavender essential oil." Journal of Physics: Conference Series 2710, no. 1 (2024): 012030. http://dx.doi.org/10.1088/1742-6596/2710/1/012030.

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Abstract Zeolite-containing nanocomposites as candidates for Lavender oil delivery systems were investigated. The nanocomposite samples and lavender oil delivery systems were investigated by pore size distribution and X-ray diffraction (XRD), the specific surface area with Brunauer-Emmett-Teller (BET), Fourier-transform infrared (FT-IR) spectrometer, energy-dispersive spectroscopy (EDX) analysis and Scanning Electron Microscopy (SEM). These initial results could significantly contribute to the further development of applications for lavender essential oil delivery systems based on natural zeol
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18

Sayğılı, Gülbahar Akkaya. "Synthesis And Characterization of A Novel Ferrospinel Biocomposite Material." Academic Perspective Procedia 2, no. 3 (2019): 1210–17. http://dx.doi.org/10.33793/acperpro.02.03.134.

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In this study, microwave-assisted activated carbon was produced from lentil processing waste K2CO3 chemical activation at optimum production conditions. The synthesized optimal activated carbon with a high surface area (1875 m2/g) was used as a matrix for ferrospinel composite. CuFe2O4 nanoparticles were embedded to the synthesized optimal activated carbon and a novel magnetic composite material was fabricated. A detailed structural and textural analysis of as-prepared ferrospinel composite material was made by using various characterization techniques including Fourier transform infrared spec
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19

Bai, Shi-Qiang, Lu Jiang, Sheng-Li Huang, et al. "Magnetic Pd/Fe3O4 Composite: Synthesis, Structure, and Catalytic Activity." Australian Journal of Chemistry 67, no. 10 (2014): 1387. http://dx.doi.org/10.1071/ch14148.

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Composite Pd/Fe3O4 (1) was designed and synthesised by immobilization of tridentate pincer ligands with triethoxysilane groups on Fe3O4 nanoparticles, PdII complexation, and in-situ reduction process. The composite was characterised by transmission electron microscopy, scanning electron microscopy energy-dispersive X-ray spectroscopy, powder X-ray diffraction, vibrating sample magnetometer, Fourier transform infrared spectroscopy, thermogravimetric analysis, and Brunauer–Emmett–Teller analysis. The composite featured Pd nanoparticles of ~2–4 nm, exhibited good thermal stability and hydrophilic
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20

Mahajan, M., K. Singh, and O. P. Pandey. "Synthesis and Analysis of High Surface Area Vanadium Carbide Nanoparticles." Advanced Materials Research 585 (November 2012): 95–99. http://dx.doi.org/10.4028/www.scientific.net/amr.585.95.

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Vanadium carbide is known for its applications due to extreme hardness and high melting point. In this present work, vanadium carbide nanoparticles have been synthesized in a specially designed stainless steel autoclave by solvothermal route using vanadium pentoxide (V2O5) as precursor along with a hydrocarbon acetone (C3H6O) in the presence of reducing agent magnesium (Mg). The optimization of reaction time was studied at constant temperature of 800oC. The product powder was characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscope (TEM) an
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21

Ye, Yan Lin, and Pei Song Tang. "Synthesis of Nanocrytalline YVO4 by Microwave Assisted Process and its Photocatalytic Activity." Applied Mechanics and Materials 178-181 (May 2012): 531–34. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.531.

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The YVO4 was synthesized by microwave assisted process. The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance spectroscopy (DRS), thermogravimetry and differential thermal analysis (TG-DTA) and Brunauer-Emmett-Teller (BET) method. The results show that YVO4 was tetragonal crystal, particle size of 50 to 80 nm, band gap of 3.3 eV and surface area of 18.6m2/g. The photocatalytic experiment of YVO4 shows the high photocatalytic activity for the decomposition of methyl orange under UV-light irradiation.
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22

Khadem, Dariush Jafar, Zahira Yaakob, Samaneh Shahgaldi, Wan Ramli Wan Daud, and Edy Herianto Majlan. "Effect of Calcinations on Morphology of Electrospun Copper and Copper Oxide Nanofibers." Applied Mechanics and Materials 52-54 (March 2011): 1884–89. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1884.

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Metal and Metal oxide nanofibers have different potential to play an essential role in a series of application, among them copper and copper oxide nanostructures is a promising semiconductor material with potential applications in many field. In this paper, electrospinning method via sol-gel was used to fabricate copper and copper oxide nanofibers. Synthesize of copper and copper oxide nanofibers and also effect of calcinations temperature on morphology investigated by thermal gravimetric analysis, scanning electron microscopy (SEM), Transmission electron microscopy, x-ray diffraction(XRD), Fo
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23

Faiz Haddad, Husam, Azhagapillai Prabhu, Ahmed Al Shoaibi, and Chandrasekar Srinivasakannan. "Assessment of various carbon-based adsorbents for separation of BTX from aqueous solution." Water Supply 15, no. 3 (2015): 649–55. http://dx.doi.org/10.2166/ws.2015.020.

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The adsorption of benzene, toluene and xylene (BTX) was investigated covering different types of commercially available activated carbons with varied surface area and surface functional groups. The physico-chemical properties were characterized by Brunauer–Emmett–Teller (BET) surface area analysis, Fourier transform infrared (FTIR) spectroscopy and the Boehm titration method. Experiments to assess the adsorption isotherms and kinetics of adsorption were performed and the results are presented. An increase in the surface acid functional groups was found to decrease the adsorption capacity, with
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24

Gou, Xing Long, Li Na Xu, Wei Yang Li, Jun Chen, and Qiang Xu. "Metal-Complex Hydrides for Hydrogen-Storage Application." Materials Science Forum 475-479 (January 2005): 2437–40. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.2437.

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Metal-complex hydrides Li3AlH6 and V-doped Li3AlH6 nanoparticles were synthesized by solid reactions of LiH and LiAlH4 in the absence and in the presence of VCl3, respectively. X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, Brunauer- Emmett-Teller sorption, thermogravimetry and differential thermal analysis have been used to investigate the phase composition, microstructure and surface properties. Not only the nanocrystalline Li3AlH6, but also the coexisting catalyst with “valence-transfer” state can influence the dehydrogenation kinetics. The extension
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25

Li, Chang Yu, Shou Xin Liu, and Li Li Liu. "Preparation and Characterization of Flowerlike Nickel Oxide." Applied Mechanics and Materials 121-126 (October 2011): 1044–48. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1044.

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Flowerlike nickel oxide was synthesized by a simple liquid-phase process to obtain the hydroxide precursor and then calcined to form the nickel oxide. The precursor and the nickel oxide were characterized by X-ray diffraction (XRD), thermogravimetric analysis (TG) , the scanning electron microscope(SEM) and Brunauer–Emmett–Teller-specific surface area measurement. The results indicated α-Nickel hydroxide was transferred to NiO with a cubic crystalline structure after being calcined at 450 °C; the NiO still kept the morphology of the precursors and the specific surface area of the NiO was 125.2
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26

Nguyen, Dinh Hung, Ngoc Toan Vu, Van Hoang Nguyen, et al. "Research on the fabrication and evaluation of certain properties of the multi-metallic catalyst supported on silica TeKL-25." Journal of Military Science and Technology 103 (May 26, 2025): 55–64. https://doi.org/10.54939/1859-1043.j.mst.103.2025.55-64.

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This paper presents the research results on the synthesis of the multi-metallic catalyst material TeKL-25 based on a silica support. The characteristics of the synthesized material were analyzed using advanced techniques such as Field Emission Scanning Electron Microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) surface area analysis, X-ray Diffraction (XRD), and Energy Dispersive X-ray Spectroscopy (EDX). The synthesized TeKL-25 material exhibits a tightly bonded structure, a rough surface, relatively uniform particle distribution, a BET surface area of 292.716 m2/g, and a mesoporous structure.
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27

Hidayat, Benny, Nur Ulina Warnisyah Sebayang, Jamilah Jamilah, and Adhira Mahardika. "Brunauer-Emmett-Teller, Fourier-transform infrared, and scanning-electron-microscope analysis of biochar from marine organic waste." SAINS TANAH - Journal of Soil Science and Agroclimatology 22, no. 1 (2025): 127. https://doi.org/10.20961/stjssa.v22i1.93314.

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Brunauer Emmet Teller (BET), Fourier Transform Infrared (FTIR), and Scanning Electron Microscope (SEM) study are important methods for characterizing biochar produced from marine organic waste. Each technique provides insights into the physical and chemical structure of biochar, which are essential for understanding its properties and potential as a soil amendment. The purpose of characterizing biochar from marine organic waste by BET method is to specify the superficies point, pore size, and total pore volume of the biochar, FTIR to identify the characterization of organic compounds, and SEM
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28

Amin, Muhammad, Hamad Hussain Shah, Amjad Iqbal, Zia Ur Rahman Farooqi, Marek Krawczuk, and Adeel Zia. "Conversion of Waste Biomass into Activated Carbon and Evaluation of Environmental Consequences Using Life Cycle Assessment." Applied Sciences 12, no. 11 (2022): 5741. http://dx.doi.org/10.3390/app12115741.

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In this article, activated carbon was produced from Lantana camara and olive trees by H3PO4 chemical activation. The prepared activated carbons were analyzed by characterizations such as scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer–Emmett–Teller, X-ray diffraction, thermogravimetric analysis, and Fourier transform infrared spectroscopy. H3PO4 is used as an activator agent to create an abundant pore structure. According to EDX analysis, the crystalline structure destroys and increases the carbon content of the olive tree and Lantana camara by 77.51 and 76.16%, re
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29

Kang, Shi Zhao, Tan Wu, Xiang Qing Li, Yi Lun Zhou, and Jin Mu. "An Inexpensive, Stable and Highly Efficient Photocatalyst for Degradation of Organic Dyes in Water: Core-Shell Montmorillonite-TiO2 Colloids." Advanced Materials Research 864-867 (December 2013): 404–7. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.404.

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Core-shell montmorillonite-TiO2 colloids were prepared in a hydrothermal process and characterized with transmission electron microscope, powder X-ray diffraction analysis, Brunauer-Emmett-Teller analysis and UV-vis spectra. Afterwards, their photocatalytic activity was investigated under UV irradiation using methyl orange as a model contaminant. In addition, the stability of the core-shell montmorillonite-TiO2 colloids was investigated by repeatedly performing methyl orange photocatalytic degradation experiments. The results indicate the as-prepared core-shell montmorillonite-TiO2 colloids ar
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30

Saravanan, R., N. Karthikeyan, S. Govindan, V. Narayanan, and A. Stephen. "Photocatalytic Degradation of Organic Dyes Using ZnO/CeO2 Nanocomposite Material under Visible Light." Advanced Materials Research 584 (October 2012): 381–85. http://dx.doi.org/10.4028/www.scientific.net/amr.584.381.

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Nanorods of ZnO/CeO2 were synthesized by thermal decomposition method. The decomposition temperature and formation of composite material were confirmed by the thermogravimetric analysis (TGA) before the synthesis process. The prepared samples were characterized by different techniques. The structural and morphological properties of ZnO/CeO2 nanorods were confirmed by X-ray diffraction (XRD) and high resolution scanning electron microscopy (HR-SEM). The chemical composition and specific surface area analysis were done by energy dispersive X-ray spectroscopy (EDX) and Brunauer–Emmett–Teller (BET
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31

Maj, Kamila, and Ireneusz Kocemba. "Nanostructured forms of carbon deposit obtained during cracking of methane reaction over nanocrystalline iron catalysts." Adsorption Science & Technology 36, no. 1-2 (2017): 493–507. http://dx.doi.org/10.1177/0263617417705471.

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During catalytic cracking of methane reaction, different carbon nanostructures can be formed. This paper shows the results of a characteristic nanostructured carbon deposit obtained during cracking of methane reaction over nanocrystalline iron catalysts with or without cobalt addition. The properties of the carbon deposit were determined by X-ray diffraction, scanning electron microscope with energy dispersive spectrometer equipment, thermogravimetry-differential thermal analysis coupled with mass spectrometry, time-of-flight secondary ion mass spectrometry analysis and surface area analysis (
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32

Wang, Xin M., and Ping Xiao. "Solvothermal synthesis of zirconia and yttria-stabilized zirconia nanocrystalline particles." Journal of Materials Research 22, no. 1 (2007): 46–55. http://dx.doi.org/10.1557/jmr.2007.0012.

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A solvothermal method was used to prepare zirconia and yttria-stabilized zirconia (YSZ) particles using zirconium hydroxide and yttrium hydroxide particles as precursors and ethanol or isopropanol as reaction media. The particle properties were characterized with x-ray diffractometry, scanning electron microscopy, transmission electron microscopy, thermal analysis, laser particle-size analysis, nitrogen adsorption (Brunauer–Emmett–Teller method) and Zeta potential analysis. Cubic/tetragonal ZrO2 and YSZ nanocrystals with crystallite size around 5 nm were obtained. The effect of different hydro
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33

Prakash, Raju, Katharina Fanselau, Shuhua Ren, et al. "A facile synthesis of a carbon-encapsulated Fe3O4 nanocomposite and its performance as anode in lithium-ion batteries." Beilstein Journal of Nanotechnology 4 (October 30, 2013): 699–704. http://dx.doi.org/10.3762/bjnano.4.79.

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A carbon-encapsulated Fe3O4 nanocomposite was prepared by a simple one-step pyrolysis of iron pentacarbonyl without using any templates, solvents or surfactants. The structure and morphology of the nanocomposite was investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Brunauer–Emmett–Teller analysis and Raman spectroscopy. Fe3O4 nanoparticles are dispersed intimately in a carbon framework. The nanocomposite exhibits well constructed core–shell and nanotube structures, with Fe3O4 cores and graphitic shells/tubes. The as-synthesized material could be
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34

Ma, Yubo, Zhixian Gao, and Wumanjiang Eli. "Hydroformylation of Dicyclopentadiene over Rh Catalysts Supported on Fe2O3, Co3O4 and Fe2O3–Co3O4 Mixed Oxide." Progress in Reaction Kinetics and Mechanism 42, no. 1 (2017): 8–13. http://dx.doi.org/10.3184/146867817x14806858831947.

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Rh catalysts supported on Fe2O3, Co3O4 and Fe2O3–Co3O4 mixed oxide were prepared by the co-precipitation method. The effect of the support on the performance of the Rh catalysts for the hydroformylation of dicyclopentadiene was investigated using X-ray photoelectron spectroscopy, H2-temperature-programmed reduction, H2-temperature-programmed desorption and Brunauer–Emmett–Teller analysis techniques. The results indicated that the Fe2O3–Co3O4 supported catalyst had a higher dispersion of Rh and thus more Rh+ sites. As a result, the Fe2O3–Co3O4 supported Rh catalyst exhibited higher activity com
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35

Rashad, Shimaa, A. H. Zaki, and A. A. Farghali. "Morphological effect of titanate nanostructures on the photocatalytic degradation of crystal violet." Nanomaterials and Nanotechnology 9 (January 1, 2019): 184798041882177. http://dx.doi.org/10.1177/1847980418821778.

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The heterogeneous photocatalysis using semiconductor nanocrystals is an important process in the field of water treatment since it is a low cost, environmentally friendly, and zero waste technique. In this work, titanate nanostructures (sheets, tubes, and wires) were prepared by simple hydrothermal method. All samples were characterized by X-ray diffraction, transmission electron microscopy, Brunauer–Emmett–Teller surface area analysis, and Zetasizer. The results revealed that tuning the morphology of TiO2 changed the activity of the prepared nanostructures, where titanate nanowires exhibited
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36

Ahmed, Ahmed S., Mohammed Alsultan, Assim A. Sabah, and Gerhard F. Swiegers. "Carbon Dioxide Adsorption by a High-Surface-Area Activated Charcoal." Journal of Composites Science 7, no. 5 (2023): 179. http://dx.doi.org/10.3390/jcs7050179.

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An activated carbon (AC) with a high surface area of 4320.7 m2/g was synthesized via the chemical and thermal processing of walnut residues. The resulting activated charcoal was characterized by various techniques, including Brunauer–Emmett–Teller (BET) surface area analysis, scanning electron microscopy (SEM), and IR spectroscopy. The prepared activated carbon was studied for its capacity to adsorb CO2 gas. When exposed to CO2 for 60 min in a closed chamber at atmospheric pressure at 25 °C, the adsorption of a notable 301.1 mmol CO2 (13.25 g CO2) per gram of activated carbon was observed.
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37

Pierre, A. C., A. Favre, and N. Guilhaume. "Variations in the synthesis of barium hexaferrite doped with iridium and its effect in the catalytic combustion of hydrocarbons." Journal of Materials Research 13, no. 6 (1998): 1637–43. http://dx.doi.org/10.1557/jmr.1998.0225.

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This paper discusses the influence of the synthesis technique on the porous structure, phase transformation, and catalytic properties of barium hexaferrite. Barium hexaferrite was synthesized by two different citrate gel methods. The first one involved metal salts, citric acid, and ammonia, while the second dispersed the same components in a polyacrylamide gel. X-ray diffraction analysis was used to determine the nature of the phase while the Brunauer, Emmett, and Teller (BET) analysis was used to study the porous structure of the material which were heat-treated at 700 °C, 900 °C, and 1200 °C
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38

Liu, Lu, and Xiaofei Philip Ye. "Nonthermal Plasma Induced Fabrication of Solid Acid Catalysts for Glycerol Dehydration to Acrolein." Catalysts 11, no. 3 (2021): 391. http://dx.doi.org/10.3390/catal11030391.

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The feasibility of fabricating better solid acid catalysts using nonthermal plasma (NTP) technology for biobased acrolein production is demonstrated. NTP discharge exposure was integrated in catalyst fabrication in air or argon atmosphere. The fabricated catalysts were characterized by Brunauer–Emmett–Teller surface area analysis, temperature-programmed desorption of ammonia, X-ray powder diffraction and Fourier-transform infrared spectroscopy of pyridine adsorption, in comparison to regularly prepared catalysts as a control. Further, kinetic results collected via glycerol dehydration experime
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39

Bejan, Dana, Lucian Gabriel Bahrin, Sergiu Shova, et al. "New Microporous Lanthanide Organic Frameworks. Synthesis, Structure, Luminescence, Sorption, and Catalytic Acylation of 2-Naphthol." Molecules 25, no. 13 (2020): 3055. http://dx.doi.org/10.3390/molecules25133055.

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New metal-organic frameworks (MOF) with lanthanum(III), cerium(III), neodymium(III), europium(III), gadolinium(III), dysprosium(III), and holmium(III)] and the ligand precursor 1,3,5-tris(4-carboxyphenyl)-2,4,6-trimethylbenzene (H3L) were synthesized under solvothermal conditions. Single crystal x-ray analysis confirmed the formation of three-dimensional frameworks of [LnL(H2O)2]n·xDMF·yH2O for Ln = La, Ce, and Nd. From the nitrogen sorption experiments, the compounds showed permanent porosity with Brunauer-Emmett-Teller (BET) surface areas of about 400 m2/g, and thermal stability up to 500 °C
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40

Mihalka, Peter, and Peter Matiasovsky. "Water Vapour Sorption and Hysteresis Models Applicable for Silicate Building Materials." Advanced Materials Research 1126 (October 2015): 111–16. http://dx.doi.org/10.4028/www.scientific.net/amr.1126.111.

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Various models of the water vapour sorption isotherms were analysed from the aspect of their applicability for silicate-based building materials like calcium-silicates, burnt clay bricks, plasters and mortars. The analysis included the assessment of the various sorption hysteresis models. They were compared and calibrated with experimental data, consisting of the main adsorption and the scanning curves. For the silicate-based building materials as a fundamental the Brunauer–Emmett–Teller (BET) and Frenkel–Halsey–Hill (FHH) models of adsorption in a combination together with Kelvin-Cohan (KC) m
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41

Jafari, Saeed, A. Ataie, and Amin Nozari. "Effect of Sintering Aid on Synthesis and Magnetic Properties of Nanocrystalline BaFe12O19 Ceramic Foam." Advanced Materials Research 622-623 (December 2012): 980–84. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.980.

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BaFe12O19 ceramic foam was synthesized from the mixture of Fe2O3 and BaCO3 using polymeric sponge replication technique. Effect of 1, 1.5, 2, 2.5, and 3 wt.% of SiO2 addition on foam lattice shape and magnetic properties of foams were investigated. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), vibrating samplemagnetometer (VSM) and Brunauer–Emmett–Teller (BET) techniques.Addition of 3 wt.% SiO2 can completely maintain the foam lattice shape at lower calcination temperature of 1075 °C. It resulted in higher values of coercivity and saturation mag
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42

Mosaddegh, Elaheh, Asadollah Hassankhani, Sadegh Pourahmadi, and Dadkhoda Ghazanfari. "Ball Mill–assisted Preparation of Nano-CaCO3 as a Novel and Green Catalyst–based Eggshell Waste." International Journal of Green Nanotechnology 1 (January 1, 2013): 194308921350716. http://dx.doi.org/10.1177/1943089213507160.

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Ball mill–assisted preparation of nano-bio Calcite (CaCO3) based on avian shell and its application as a novel, biodegradable, and heterogeneous catalyst with high catalytic activity and reusability in the green and high efficient synthesis of pyrano[4,3- b]pyrans via a condensation reaction of different aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2 H-pyran-2-one at 120°C under solvent-free conditions is reported. The reaction proceeds to completion within 5–30 min in 90–98% yield. The nanocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanni
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43

Song, Jie, Cai Xia Li, Dan Yu Jiang, Jin Feng Xia, and Qiang Li. "Synthesis, Structure and Properties of Super Fine Zn2SnO4." Key Engineering Materials 492 (September 2011): 256–59. http://dx.doi.org/10.4028/www.scientific.net/kem.492.256.

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In this paper, super fine Zn2SnO4 powder was synthesized by mechanochemical method starting from ZnO and SnO2. The structure, size and morphology of Zn2SnO4were explored with X-ray diffraction (XRD), scanning electron microscopy (SEM) and nitrogen sorption analysis with the Brunauer-Emmett-Teller (BET) method. The result showed that pure spinel Zn2SnO4 powder was prepared after 2h grinding with 3.0KW of power and the particle size was about 200 nm. The degradation experiment of organic dye was performed by the photocatalytic methods on the light of wavelength (= 365nm). The powder can degrade
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44

Shukla, Neelesh Bharti, Arati Varma, Esha Sharma, Preetika Sharma, Shrikant Ralebhat, and Bhupendra Magare. "Dope Dyed Viscose Fibers from Black Liquor Treated Carbon Black." AATCC Journal of Research 7, no. 1 (2020): 31–36. http://dx.doi.org/10.14504/ajr.7.1.4.

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Black liquor (BL), a byproduct generated during the kraft pulping process, was used as a source of alkaline lignin (AL) to stabilize aqueous dispersions of carbon black (CB). Black liquor-treated carbon black (BL-CB) samples were prepared by varying the BL/CB/water ratio and characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and Brunauer-Emmett-Teller (BET) surface area. Improvement in dispersion of BL-CB with increased BL content was observed. The dope dyed viscose fibers were spun by addition of BL-CB to the viscose solution. These fibers exhibited deeper
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45

Sankhla, Surbhi, Kapil Gehlot, and Deshraj Sharma. "Polyaniline-mixed Metal (Fe-Mn-Zn) Oxide Nanocomposite Adsorbent for Removing Cu(II) ions from Aqueous Matrices." Oriental Journal Of Chemistry 39, no. 2 (2023): 446–51. http://dx.doi.org/10.13005/ojc/390225.

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A polyaniline-mixed metal (Fe-Mn-Zn) oxide (PANFMZO) nanocomposite adsorbent is synthesized and characterized by FTIR, SEM, SEM/EDX and Brunauer–Emmett–Teller (BET) analysis. Efficiency of PANFMZO as adsorbent for removal of Cu(II) ions from aqueous matrices is analysed. The parameters like change in amount of adsorbent, contact time, pH and initial Cu(II) ion concentration are studied and removal of 69.20% of Cu(II) ion from test solution is achieved. The maximum adsorption capacity of PANFMZO for Cu(II) is found to be 75.1879 mg/g. The adsorption results are described by both Langmuir and Fr
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46

Hsu, Kuo Chin, Jiunn Der Liao, Zheng Zhong Xie, and Yaw Shyan Fu. "Preparation and Characterization of Cubic and Rod-Shaped Indium Tin Oxide Powders Using the Hydrothermal Process." Applied Mechanics and Materials 479-480 (December 2013): 64–68. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.64.

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The cubic and rod-shaped powders of indium tin oxide were synthesized at a stable temperature reaction for 18h using the surfactant aid hydrothermal method under various conditions. The cubic and rod-shaped powder size changes with the concentration of the precursor. The finished products of indium tin oxide can be obtained by calcination at 500°C for 2h in air. Characterization was conducted using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffractometry (XRD), thermogravimetric analyzer/differential thermal analysis (TG/DTA) and the Brunauer-Emmett-Teller
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47

Foowut, Supranee, Tawanrat Palothaisit, Natthadabhorn Boonlor, Panida Prompinit, and Pinsuda Viravathana. "Preparation of Iron Catalysts Generated from Fe-Coagulated Sludge Produced by Ferric Chloride Coagulation of Wastewater." Advanced Materials Research 1025-1026 (September 2014): 645–50. http://dx.doi.org/10.4028/www.scientific.net/amr.1025-1026.645.

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In this work, the FexOy catalysts were prepared by the co-precipitation method. The catalysts were characterized by X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), and Brunauer-Emmett-Teller (BET) surface analysis. From XRD results, the FexOy with the wastewater to coagulant ratio of 1:2 catalyst (FexOy-1:2) calcined at 600 °C for 6 h showed the presence of the wustite (FeO) form. XANES analysis showed the phase of FeO in FexOy-1:2 calcined at 600 °C for 6 h which corresponded to the result from XRD. The FexOy 1:1 catalyst had higher specific surface area and larger total pore vo
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48

Wang, Peng, Qi Sun, Yujiao Zhang, Jun Cao, and Xingmao Li. "Hydrothermal synthesis of Zeolite NaA from Kaolin." Functional Materials Letters 12, no. 05 (2019): 1950075. http://dx.doi.org/10.1142/s1793604719500759.

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Zeolite NaA was successfully synthesized from low-grade kaolin via hydrothermal synthesis method. The properties of the zeolite NaA were characterized by means of X-ray diffraction (XRD), Fourier transform infrared (FTIR), X-ray fluorescence (XRF), scanning electron microscopy (SEM)-energy-dispersive spectrometry (EDS), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), and thermogravimetry (TG)-differential thermal analysis (DTA). TEM analysis indicated the formation of body-centered cubic crystal zeolite NaA and the polycrystallinity of the zeolite NaA structure. The textu
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49

Hsu, Kuo Chin, Jiunn Der Liao, Zheng Zhong Xie, and Yaw Shyan Fu. "Preparation and Characterization of Cubic and Rod-Shaped Indium Tin Oxide Powders Using the Hydrothermal Process." Applied Mechanics and Materials 311 (February 2013): 430–34. http://dx.doi.org/10.4028/www.scientific.net/amm.311.430.

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The cubic and rod-shaped powders of indium tin oxide were synthesized at a stable temperature reaction for 18h using the surfactant aid hydrothermal method under various conditions. The cubic and rod-shaped powder size changes with the concentration of the precursor. The finished products of indium tin oxide can be obtained by calcination at 500°C for 2h in air. Characterization was conducted using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffractometry (XRD), thermogravimetric analyzer/differential thermal analysis (TG/DTA) and the Brunauer-Emmett-Teller
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50

Irwansyah, Ferli Septi, Alfi Ikhlasul Amal, Erlinda Widyasmara Diyanthi, et al. "How to Read and Determine the Specific Surface Area of Inorganic Materials using the Brunauer-Emmett-Teller (BET) Method." ASEAN Journal of Science and Engineering 4, no. 1 (2022): 61–70. http://dx.doi.org/10.17509/ajse.v4i1.60748.

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The specific surface area of inorganic materials is a crucial parameter that influences their performance in various applications. The Brunauer-Emmett-Teller (BET) method is widely used for accurately determining the surface area of porous materials. This study presents a comprehensive guide to determining the specific surface area of inorganic materials using the BET method. The paper outlines the theoretical background of the BET method, the experimental procedures involved, and the data analysis techniques. Additionally, we discuss the limitations and potential sources of errors in the BET
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