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Journal articles on the topic 'Microporous surface'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Rainey, K. N., G. Li, and S. M. You. "Flow Boiling Heat Transfer From Plain and Microporous Coated Surfaces in Subcooled FC-72." Journal of Heat Transfer 123, no. 5 (2001): 918–25. http://dx.doi.org/10.1115/1.1389465.

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The present research is an experimental study of subcooled flow boiling behavior using flat, microporous-enhanced square heater surfaces in pure FC-72. Two 1-cm2 copper surfaces, one highly polished (plain) and one microporous coated, were flush-mounted into a 12.7 mm square, horizontal flow channel. Testing was performed for fluid velocities ranging from 0.5 to 4 m/s (Reynolds numbers from 18,700 to 174,500) and pure subcooling levels from 4 to 20 K. Results showed both surfaces’ nucleate flow boiling curves collapsed to one line showing insensitivity to fluid velocity and subcooling. The log

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2

Liu, Si Yu, Pei Feng, and Chong Chang Yang. "The Study Based on LABVIEW of the Positioning Accuracy of Spinneret Microporous Fine Machine." Advanced Materials Research 712-715 (June 2013): 1347–50. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1347.

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The microporous on spinneret has the characteristics of high precision, small pore size and large quantity. Spinneret microporous finishing operation is mainly used for removing the burr formed on the spinneret silk surface after micropores drilling and punching. The burrs seriously affect the quality of the spinning fibers. Micropore spinneret finishing plays a vital role in improving the quality of processing micropore. This paper introduces a system consisting of the spinneret micropore fine machine,then focuses on fine machine positioning system and proposes a high-precision positioning me

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3

Dziuba, M., L. Mushinskii, R. Brovko, and V. Doluda. "Surface Characterization of Zn-modified H-ZSM-5 Zeolites." Bulletin of Science and Practice 6, no. 6 (2020): 48–54. http://dx.doi.org/10.33619/2414-2948/55/06.

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The surface properties of microporous aluminosilicates are of primary importance in chemical technology and catalysis. The determination of the surface area, pore volume, and pore size and size distribution for microporous aluminosilicates is a complex scientific and technical problem related to both accurate measurements and the correct choice of a mathematical model that adequately describes the physicochemical processes occurring on the test surface. Currently, t-plot, as-plot, Dubinin-Radushkevich model, Dillimore model and Horvath-Kawazoe model are frequently used, each of which has certa

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4

Zhou, Bihang, Yinying Hua, Fujun Cheng, Jingui Duan, Lingyun Chen, and Wanqin Jin. "Fabrication of morphology-preserved microporous carbon from a zeolitic-like porous coordination polymer." Inorganic Chemistry Frontiers 4, no. 2 (2017): 234–40. http://dx.doi.org/10.1039/c6qi00526h.

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A new zeolitic-like microporous coordination polymer (PCP), [Zn<sub>2</sub>(L)·2H<sub>2</sub>O]·xguest, was firstly converted to morphology-preserved carbon rods with exclusive micropores and a large surface area for selective gas capture.

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Luo, Yan, Kang Wang, and Ling Fei. "The effects of activation conditions on physical properties of activated carbon." BioResources 15, no. 4 (2020): 7640–47. http://dx.doi.org/10.15376/biores.15.4.7640-7647.

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Porous carbons with a high porosity were successfully produced from fast pyrolysis pine wood char via a thermochemical method in which KOH was used as chemical activator. The effects of various weight ratios of KOH to pyrolysis char (0.65:1, 0.7:1, 1.0:1, 1.35:1, and 1.7:1) on the physical properties of activated carbons were investigated. When the weight ratio of KOH to pyrolysis char was 1.35:1, the prepared activated carbon had the highest surface area of 1140 m2/g with a total pore volume of 0.71 cm3/g, a microporous surface area of 957 m2/g, and a microporous specific volume of 0.51 cm3/g

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6

Tang, Qingguo, Fei Wang, Mengran Tang, Jinsheng Liang, and Chongyan Ren. "Study on Pore Distribution and Formation Rule of Sepiolite Mineral Nanomaterials." Journal of Nanomaterials 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/382603.

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Theoretical research and specific surface area analysis of nitrogen adsorption indicated that a lot of structural micropores exist in sepiolite minerals fibers. However, the microporous size, existing form, and the distribution relationship between microporous structures were not proved yet. In this paper, the section TEM samples of nanofibers were prepared on the basis of the metal embedding and cutting technique, and the inner structure of sepiolite nanofibers was observed by TEM. The results showed that sepiolite fibers have multiplayer structure similar to concentric circles, and many micr

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7

Zhao, Quan-ming, Guang-zhong Li, Hao-ming Zhu, and Li Cheng. "Study on Effects of Titanium Surface Microporous Coatings Containing Zinc on Osteoblast Adhesion and Its Antibacterial Activity." Applied Bionics and Biomechanics 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/2906575.

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Metal surface structure/biomedical function integration is the current research focus. In previous studies, we have successfully prepared the microporous coatings containing zinc on the pure titanium surface by MAO. In the study, osteoblasts were seeded on the surface of the microporous coatings containing zinc and the adhesion of osteoblasts were evaluated, and the antibacterial activity of the microporous coatings containing zinc is observed through in vitro bacterial experiments. The result indicates that the adhesion ability of osteoblasts on the surface of microporous coatings containing

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8

Feng, Xiaoke, Hao Yu, Huan Liu, et al. "Three-Dimensionally-Printed Polyether-Ether-Ketone Implant with a Cross-Linked Structure and Acid-Etched Microporous Surface Promotes Integration with Soft Tissue." International Journal of Molecular Sciences 20, no. 15 (2019): 3811. http://dx.doi.org/10.3390/ijms20153811.

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Polyether-ether-ketone (peek) is one of the most common materials used for load-bearing orthopedic devices owing to its radiolucency and favorable mechanical properties. However, current smooth-surfaced peek implants can lead to fibrous capsule formation. To overcome this issue, here, peek specimens with well-defined internal cross-linked structures (macropore diameters of 1.0–2.0 mm) were fabricated using a three-dimensional (3D) printer, and an acid-etched microporous surface was achieved using injection-molding technology. The cell adhesion properties of smooth and microporous peek specimen

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9

Kim, J. H., K. N. Rainey, S. M. You, and J. Y. Pak. "Mechanism of Nucleate Boiling Heat Transfer Enhancement From Microporous Surfaces in Saturated FC-72." Journal of Heat Transfer 124, no. 3 (2002): 500–506. http://dx.doi.org/10.1115/1.1469548.

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The present study is an experimental investigation of the nucleate pool boiling heat transfer enhancement mechanism of microporous surfaces immersed in saturated FC-72. Measurements of bubble size, frequency, and vapor flow rate from a plain and microporous coated 390 μm diameter platinum wire using the consecutive-photo method were taken to determine the effects of the coating on the convective and latent heat transfer mechanisms. Results of the study showed that the microporous coating augments nucleate boiling performance through increased latent heat transfer in the low heat flux region an

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10

Ji, Yan Yan, Biao Zhang, and Xiao Chun Wang. "Adsorption Properties of Self-Assembly Synthesized Microporous Silica Material from Acidic Aqueous Media." Advanced Materials Research 179-180 (January 2011): 519–22. http://dx.doi.org/10.4028/www.scientific.net/amr.179-180.519.

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Microporous silica material AMPS has been synthesized via TEA+ cations assisted self-assembly of silica species in acidic aqueous solution. Nitrogen adsorption analysis revealed 0.65 nm uniform micropores in AMPS, companied with a Langmuir surface area of 745 m2/g and a pore volume of 0.22 cm3/g. The microporous AMPS exhibited an excellent adsorptive performance for volatile organic compounds (VOC) such as cyclohexane and acetone, compared with conventional zeolites such as Y, ZSM-5 and A. The adsorption was rapidly saturated at lower relative pressure with higher capacities than that of conve

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11

Zhang, Xueyi, Dongxia Liu, Dandan Xu, et al. "Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching." Science 336, no. 6089 (2012): 1684–87. http://dx.doi.org/10.1126/science.1221111.

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Hierarchical zeolites are a class of microporous catalysts and adsorbents that also contain mesopores, which allow for fast transport of bulky molecules and thereby enable improved performance in petrochemical and biomass processing. We used repetitive branching during one-step hydrothermal crystal growth to synthesize a new hierarchical zeolite made of orthogonally connected microporous nanosheets. The nanosheets are 2 nanometers thick and contain a network of 0.5-nanometer micropores. The house-of-cards arrangement of the nanosheets creates a permanent network of 2- to 7-nanometer mesopores,

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12

Liu, Ze, Ye Xing, Yande Cao, and Haichao Li. "Synthesis of N-doped activated carbon with ultra-microporous and the capacity to store hydrogen." BioResources 20, no. 1 (2024): 672–82. https://doi.org/10.15376/biores.20.1.672-682.

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N-doped ultra-microporous activated carbon was made from Chenopodium quinoa Willd. straw in the Tibetan Plateau region and cesium chloride as activator and used for H2 adsorption and storage. Its structure was characterized by the Brunauer-Emmett-Teller (BET) method and other techniques. The results showed that the adsorbent had a well-developed microporous structure, and its specific surface area was as high as 804 m2 ·g-1. Its major pore sizes were all distributed in the ultra-micropores of 0.62 nm. The adsorbent also had a high H2 adsorption storage capacity, which could reach 12.2 cm3·g-1

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13

Zeng, Ganning, Sa Lou, Huijuan Ying, et al. "Preparation of Microporous Carbon from Sargassum horneri by Hydrothermal Carbonization and KOH Activation for CO2 Capture." Journal of Chemistry 2018 (December 13, 2018): 1–11. http://dx.doi.org/10.1155/2018/4319149.

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High-performance microporous activated carbon (AHC) for CO2 capture was prepared from an emerging marine pollutant, Sargassum horneri, via hydrothermal carbonization (HTC) and KOH activation. The as-synthesized carbon material was characterized by N2 sorption-desorption measurement, TGA, SEM, XRD, FTIR, and elemental analysis. Impressively, the activated carbon exhibited high specific surface area (1221 m2/g), narrow distributed micropores (∼0.50 nm), and a relatively high nitrogen content (3.56 wt.%), which endowed this carbon material high CO2 uptake of 101.7 mg/g at 30°C and 1 bar. Moreover

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14

Dobrzański, L. A., A. D. Dobrzańska-Danikiewicz, Z. P. Czuba, et al. "The new generation of the biologicalengineering materials for applications in medical and dental implant-scaffolds." Archives of Materials Science and Engineering 2, no. 91 (2018): 56–85. http://dx.doi.org/10.5604/01.3001.0012.5490.

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Purpose: The publication aims to find the relationship between the proliferation of surface layers of living cells and the deposition of thin atomic layers deposition ALD coatings on the pores internal surfaces of porous skeletons of medical and dental implant-scaffolds manufactured with the selective laser deposition SLS additive technology using titanium and Ti6Al4V alloy. Design/methodology/approach: The extensive review of the literature presents the state-of-the-art in the field of regenerative medicine and tissue engineering. General ageing of societies, increasing the incidence of oncol

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15

Manh, Vu Cong, Dang Minh Duc, Dang Quoc Khanh, et al. "Study on Coating of TiO<sub>2 </sub>Nanotubes on Microporous Ti Surfaces for Biomedical Applications." Key Engineering Materials 1002 (December 19, 2024): 45–53. https://doi.org/10.4028/p-xqj5hi.

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In this research, smooth commercial Ti grade 2 corroded by ErCl3.6H2O under an electrochemical process with difference electrochemical current ranging from 0.5 – 4A, providing a rougher surface conducive to the adsorption on the Ti surface. A thin layer of TiO2 nanotubes synthesized via the anodization method on microporous Ti surfaces for application in the biomedical field. The results reveal that the smooth titanium surface was completely corroded, resulting in the formation of a microporous structure, with a thin layer of TiO2 successfully formed on the microporous titanium surfaces. The d

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16

Li, Zhenhua, Mutellip Ahmat, Quanyi Zhang, and Huafeng Zhou. "Analysis of Contact Characteristics of Rough Surface/Microporous For Flat Friction Pair." Journal of Physics: Conference Series 2459, no. 1 (2023): 012048. http://dx.doi.org/10.1088/1742-6596/2459/1/012048.

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Abstract The rough surface has serious friction, wear and thermal damage during the sliding friction process in engineering applications, which leads to the failure of the friction pair. The rough surface contact is simplified into a rough surface with fractal properties and an ideal plane. The interaction between the asperities of the contacting body and the coupling effect of frictional heat flow at the frictional interface is considered. The impact of contact pressure and temperature rise between microporous model and non porous model on rough surface was compared, as well as the impact of

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17

Vasylyeva, H., M. Tcyba, Yu Kylivnyk, and V. Yakovlev. "Radiant Changes of Porous Structure of Ion-Exchange Sorbents Based on Titanium Phosphate and Zirconium Silicate." Фізика і хімія твердого тіла 16, no. 3 (2015): 534–39. http://dx.doi.org/10.15330/pcss.16.3.534-539.

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The effect of bremsstrahlung gamma rays on the surface parameters of microporous amorphous zirconium silicate and on its ability for sorption is studied. The samples were irradiated using a betatron (electron accelerator) with the maximal energy of the g-quanta of 10 MeV and 24 MeV. The surface characteristics of the sorbents were studied by low-temperature adsorption/desorption of nitrogen. The experimental data were processed by BET, DR, and BJH methods. The results show that under exposure to Bremsstrahlung gamma rays the micropores of the sorbent under investigation are partly transformed

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18

Sun, Lewen, Jufang Zhu, Yanchao Che, Qiuying Li, Weihong Guo, and Chifei Wu. "Fabrication of high-performance polytetrafluoroethylene microporous membranes filled with nano-alumina." High Performance Polymers 31, no. 7 (2018): 843–51. http://dx.doi.org/10.1177/0954008318804034.

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In this article, polytetrafluoroethylene (PTFE) microporous membranes with excellent tensile strength and good wear durability were successfully fabricated by the addition of nano-alumina (Al2O3). The friction and mechanical behavior of PTFE microporous membranes with different nano-Al2O3 contents were investigated by Martindale abrasion tester, dynamic mechanical analysis, and universal testing machine. Scanning electron microscopy was applied to analyze the surface, longitudinal section, and worn surface of the microporous membranes. Results demonstrated that nano-Al2O3 particles were disper

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19

Liang, Ning, Hao Ding, Yong Teng Hu, and Bai Kun Wang. "Reaction Mechanism between Zn²⁺ and Diatomite in Preparation of Zn²⁺/Diatomite Antibacterial Agent." Materials Science Forum 685 (June 2011): 260–63. http://dx.doi.org/10.4028/www.scientific.net/msf.685.260.

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The reaction mechanism between Zn2+and diatomite in preparation of Zn2+/diatomite antibacterial agent by diatomite adsorbing and solidifying Zn2+in its pores was studied. Microporous adsorption, characterized by hydrated Zn2+adsorbed in the micropores of diatomite, and surface coordinate adsorption, featured with coordination of Zn2+with functional groups on the surfaces of diatomite, were the main adsorption ways accompanied by ion exchange adsorption and physical adsorption. SEM was used to observe the morphologies of diatomite before and after adsorption. Due to the dehydration between OH g

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20

Ning, Hailong, Zhiwu Li, Ning Liu, Chengling Li, Yao Lu, and Long Li. "Fabrication of Sustainable Diatomite-Based Foams with a Micro-Macroporous Synergistic Structure." Materials 18, no. 9 (2025): 1968. https://doi.org/10.3390/ma18091968.

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This study developed a foamed material with a synergistic microporous-macroporous structure through chemical foaming and high-pressure curing to better utilize the microporous properties of diatomaceous earth in building materials. The effects of different amounts of foaming agent, foam stabilizer, and CaO/SiO2 on the mechanical properties and pore structure of the samples were investigated. The experimental results demonstrate that, under the influence of the foaming agent, the foam material has developed a multi-stage pore structure that integrates both macropores and micropores. This unique

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21

Weidler, P. G., and H. Stanjek. "The effect of dry heating of synthetic 2-line and 6-line ferrihydrite: II. Surface area, porosity and fractal dimension." Clay Minerals 33, no. 2 (1998): 277–84. http://dx.doi.org/10.1180/000985598545471.

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AbstractNitrogen adsorption isotherms were measured on synthetic 2-line and 6-line ferrihydrites heated to 400 K, 500 K, and 600 K under dry conditions for different times ranging from 4 to 3000 h. Evaluation of specific surface area, microporosity and fractal dimension revealed that 2-line and 6-line ferrihydrites are highly microporous powders consisting of aggregates with corrugated interior and exterior surfaces. Furthermore, the surfaces of the single particles forming the aggregates have a smaller fractal dimension, i.e. a smoother appearance, than those of the entire aggregate. The diff

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Chen, R. T., M. G. Jamieson, and R. Callahan. "SEM/FESEM imaging of lamellar structures in melt extruded polyethylene films." Proceedings, annual meeting, Electron Microscopy Society of America 50, no. 2 (1992): 1142–43. http://dx.doi.org/10.1017/s0424820100130341.

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“Row lamellar” structures have previously been observed when highly crystalline polymers are melt-extruded and recrystallized under high stress. With annealing to perfect the stacked lamellar superstructure and subsequent stretching in the machine (extrusion) direction, slit-like micropores form between the stacked lamellae. This process has been adopted to produce polymeric membranes on a commercial scale with controlled microporous structures. In order to produce the desired pore morphology, row lamellar structures must be established in the membrane precursors, i.e., as-extruded and anneale

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23

Alekseev, N. S., A. V. Shashok, V. A. Kaporin, and S. V. Ivanov. "Surface roughness when grinding microporous coating." Repair Reconditioning Modernization 9 (2019): 44–48. http://dx.doi.org/10.31044/1684-2561-2019-0-9-44-48.

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24

Cabús-Llauradó, M. C., Y. Cesteros, F. Medina, P. Salagre, and J. E. Sueiras. "Microporous high-surface area layered CeO2." Microporous and Mesoporous Materials 100, no. 1-3 (2007): 167–72. http://dx.doi.org/10.1016/j.micromeso.2006.10.034.

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Tian, Yanqin, Yan Lin, Takeshi Hagio, and Yun Hang Hu. "Surface-microporous graphene for CO2 adsorption." Catalysis Today 356 (October 2020): 514–18. http://dx.doi.org/10.1016/j.cattod.2020.06.002.

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Ehrburger, P., N. Pusset, and P. Dziedzinl. "Active surface area of microporous carbons." Carbon 30, no. 7 (1992): 1105–9. http://dx.doi.org/10.1016/0008-6223(92)90142-j.

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27

Cheng, Yang, Yu Lu, Qing Yang, et al. "Rapid Fabrication of Wavelength-Scale Micropores on Metal by Femtosecond MHz Burst Bessel Beam Ablation." Nanomaterials 12, no. 24 (2022): 4378. http://dx.doi.org/10.3390/nano12244378.

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The preparation of the wavelength-scale micropores on metallic surfaces is limited by the high opacity of metal. At present, most micropores reported in the literature are more than 20 µm in diameter, which is not only large in size, but renders them inefficient for processing so that it is difficult to meet the needs of some special fields, such as aerospace, biotechnology, and so on. In this paper, the rapid laser fabrications of the wavelength-scale micropores on various metallic surfaces are achieved through femtosecond MHz burst Bessel beam ablation. Taking advantage of the long-depth foc

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Мараева, Евгения Владимировна, Саида Токмеилова, Диана Ралитовна Сагитова, Ирина Евгеньевна Кононова, Вячеслав Алексеевич Мошников, and Светлана Афанасьевна Скорникова. "STUDY ON THE MICROPOROUS STRUCTURE PARAMETERS OF BEA TYPE ZEOLITES." Physical and Chemical Aspects of the Study of Clusters, Nanostructures and Nanomaterials, no. 14 (December 15, 2022): 203–10. http://dx.doi.org/10.26456/pcascnn/2022.14.203.

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В работе рассматривается серия цеолитных материалов, применяемых в качестве катализаторов. Так как формирование мезопористости в микропористой матрице является одним из методов повышения эффективности цеолитных материалов в катализе, необходим контроль параметров их пористой структуры. Изучено влияние постсинтетической обработки растворами кислот и щелочей на удельную поверхность цеолитов типа BEA. Методом низкотемпературной (при 77 К) адсорбции паров азота определена внешняя удельная поверхность (без учёта микропор) и объем микропор в образцах на приборе Sorbi. Показано, что модифицирование ц

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Möller, Egert, Rasmus Palm, Kenneth Tuul, et al. "Peat-Derived ZnCl2-Activated Ultramicroporous Carbon Materials for Hydrogen Adsorption." Nanomaterials 13, no. 21 (2023): 2883. http://dx.doi.org/10.3390/nano13212883.

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Highly microporous adsorbents have been under considerable scrutiny for efficient adsorptive storage of H2. Of specific interest are sustainable, chemically activated, microporous carbon adsorbents, especially from renewable and organic precursor materials. In this article, six peat-derived microporous carbon materials were synthesized by chemical activation with ZnCl2. N2 and CO2 gas adsorption data were measured and simultaneously fitted with the 2D-NLDFT-HS model. Thus, based on the obtained results, the use of a low ratio of ZnCl2 for chemical activation of peat-derived carbon yields highl

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Hou, Jin, Jun Sheng Yuan, and Ru Shang. "Surface-Modified Zeolite-Filled Poly(piperazine-amide)/Polysulfone Composite Membrane for Potassium Extraction." Key Engineering Materials 531-532 (December 2012): 186–89. http://dx.doi.org/10.4028/www.scientific.net/kem.531-532.186.

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Polysulfone (PS) hollow fiber microporous membrane was used as substrate, the micropores of which were filled with surface-modified zeolites suspension on the outer surface by vacuum method, and then zeolite-filled poly(piperazine-amide)/PS hollow fiber composite membrane was synthesized on the substrate by interfacial polymerization reaction with piperazine (PIP) aqueous solution and trimesoyl chloride (TMC) n-hexane solution. The substrate membrane and synthetic composite membrane were characterized by scanning electron microscopy (SEM). A thin poly(piperazine-amide) active skin layer was sy

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Gai, Xiao-Ling, Ze-Nong Cai, Xian-Hui Li, et al. "Experimental study on sound absorption performance of microporous aluminum square tube space absorber." Noise Control Engineering Journal 71, no. 2 (2023): 101–8. http://dx.doi.org/10.3397/1/37719.

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The aluminum square tube is one of the ceiling materials that have been produced in recent years. It has become the most popular product in the decoration market because its lines are bright and clean with distinct layers, reflecting the simple modern style, and it is easy to install and dismantle. However, the aluminum square tube used in the market is mostly a single aluminum panel structure, mainly used for decoration, without sound absorption and noise reduction. In order to improve the sound absorption properties of the aluminum square tube, a microporous aluminum square tube space absorb

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Rainey, K. N., and S. M. You. "Pool Boiling Heat Transfer From Plain and Microporous, Square Pin-Finned Surfaces in Saturated FC-72." Journal of Heat Transfer 122, no. 3 (2000): 509–16. http://dx.doi.org/10.1115/1.1288708.

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The present research is an experimental study of “double enhancement” behavior in pool boiling from heater surfaces simulating microelectronic devices immersed in saturated FC-72 at atmospheric pressure. The term “double enhancement” refers to the combination of two different enhancement techniques: a large-scale area enhancement (square pin fin array) and a small-scale surface enhancement (microporous coating). Fin lengths were varied from 0 (flat surface) to 8 mm. Effects of this double enhancement technique on critical heat flux (CHF) and nucleate boiling heat transfer in the horizontal ori

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Lee, Tsung-Han, Jong Baek, Liangdong Fan, Florencia Wiria, Pei-Chen Su, and Seong Lee. "SDC-Infiltrated Microporous Silver Membrane with Superior Resistance to Thermal Agglomeration for Cathode-Supported Solid Oxide Fuel Cells." Energies 11, no. 9 (2018): 2181. http://dx.doi.org/10.3390/en11092181.

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This work presents a microporous silver cathode membrane reinforced with infiltration of samarium-doped ceria (SDC). The ion-conducting SDC effectively confines the surface of a porous silver membrane to maintain microporous structure and prevents the electrode agglomeration. SDC precursor solution is fired together with silver membrane at 700 °C for 2 h and formed as a nanocrystalline SDC on the silver pore surface. The SDC-infiltrated microporous silver membrane shows superior resistance to agglomeration without noticeable change in microstructures even at 900 °C for 12 h, which makes it pro

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Sekulic, Danijela, Biljana Babic, Ljiljana Kljajevic, Jelena Stasic, and Branka Kaludjerovic. "The effect of gamma radiation on the properties of activated carbon cloth." Journal of the Serbian Chemical Society 74, no. 10 (2009): 1125–32. http://dx.doi.org/10.2298/jsc0910125s.

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Activated carbon cloth dressing is an appropriate wound healing material due to its biocompatibility and adsorption characteristics. The influence of gamma radiation as a sterilization process on the adsorption and mechanical properties of activated carbon cloth was investigated. The specific surface area, micropore volume, pore size distribution, surface chemistry as well as the breaking load of activated carbon cloth before and after gamma radiation were examined. Characterization by nitrogen adsorption showed that the activated carbon cloth was a microporous material with a high specific su

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Di, Jian You, Er Xin Gao, Xian Long Sun, Hui Juan Niu, and Mao Zhen Guo. "The Development of Microporous in Coal by Spontaneous Combustion." Advanced Materials Research 884-885 (January 2014): 166–69. http://dx.doi.org/10.4028/www.scientific.net/amr.884-885.166.

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Basing on coal and the oxygen evolving complex theory, the method of study on the spontaneous combustion by analysis the microporous in coal has been established in this article. By the electron microscope, the process of microporous volume changeing with the temperature gradually increased is observed. It is believe that the process of spontaneous combustion reaction should be carried out in the microporous. Finally, under the help with finite element analysis , the temperature field surrounding microporous has been analyzed and the distribution regularity of the temperature field has been ob

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Wang, Yi-Fei, Junya Yoshida, Yasunori Takeda, et al. "Printed Composite Film with Microporous/Micropyramid Hybrid Conductive Architecture for Multifunctional Flexible Force Sensors." Nanomaterials 14, no. 1 (2023): 63. http://dx.doi.org/10.3390/nano14010063.

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Porous structures and micropatterning surfaces play a crucial role in the development of highly sensitive force sensors. However, achieving these two conductive architectures typically requires the synthesis of complex materials and expensive manufacturing processes. In this study, we introduce a novel conductive composite film featuring a microporous/micropyramid hybrid conductive architecture, which is achieved through a straightforward process of materials mixing and one-step screen printing. By utilizing a deep eutectic solvent in the ink component, micropores are induced in the printed co

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Liu, Yanxia. "The Study on Kaolin/corn Stalk Composite Adsorbent Materials Prepared by H3PO4 Activation Method." Academic Journal of Science and Technology 4, no. 2 (2023): 9–12. http://dx.doi.org/10.54097/ajst.v4i2.3871.

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Using single factor method and orthogonal experiment,the study takes Kaolin and corn straw as raw materials and H3PO4 as activator and dips them in different activator concentration,different kaolin and corn straw mass ratio as well as different impregnation ratio under different conditions, and then carbonize them in low temperature by electric furnace, muff calcining to prepare kaolin/corn straw composite adsorption material.The adsorption capacity for methylene blue solution was characterized by T6 visible spectrophotometer,and automatic specific surface area and porosity analyzer was used

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Gimblett, F. G. R., and A. Hussain. "The Origin of Porosity in Hydrous Zirconia Gels. III. Sodium Hydroxide as a Precipitant." Adsorption Science & Technology 5, no. 3 (1988): 229–38. http://dx.doi.org/10.1177/026361748800500305.

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When used as precipitants for the preparation of hydrous zirconia gels, aqueous NaOH solutions generate materials whose porosities are strongly dependent on their outgassing temperatures. Microporous solids exhibiting high apparent BET-nitrogen surface areas, and possessing considerable proportions of primary (narrow) micropores, are obtained at lower outgassing temperatures (<250°C). Thermal treatment above this temperature leads to the generation of mesoporous materials exhibiting little or no micropore volume. It is suggested that the ready removal of loosely-bound or absorbed water from

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Takemoto, Mitsuru, Shunsuke Fujibayashi, J. Suzuki, Tadashi Kokubo, and Takashi Nakamura. "Bone-Bonding Ability of Ce-TZP/Al₂O₃ Nanocomposite with a Microporous Surface and Calcium Phosphate Coating." Key Engineering Materials 284-286 (April 2005): 987–90. http://dx.doi.org/10.4028/www.scientific.net/kem.284-286.987.

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The nano-composite of a ceria-stabilized tetragonal zirconia polycrystals (Ce-TZP) and alumina (Al2O3) polycrystals (Ce-TZP/Al2O3) is attractive as a load-bearing bone substitute because of its mechanical properties and phase stability. We have developed a new method of hydrofluoric acid and heat treatment (HFT) to give a microporous structure to the surface of this Ce-TZP/Al2O3 nanocomposite ceramic. Bone-bonding ability of a microporous surface and calcium phosphate coating on Ce-TZP/Al2O3 composite has been investigated through in vivo detaching model. Thin calcium phosphate coating layer w

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Qadeer, Riaz, Javed Hanif, and Abdul Majeed. "Characterization of Metal-Impregnated Charcoal: Nitrogen Adsorption." Adsorption Science & Technology 12, no. 2 (1995): 101–7. http://dx.doi.org/10.1177/026361749501200202.

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Nitrogen adsorption on metal (Ni, Cu, Zn) impregnated charcoal has been carried out at 77 K by the continuous flow method using a Quantasorb sorption system. It was observed that such metal impregnation did not contribute any extra surface area to the charcoal. The values of the surface area, micropore and total pore volumes determined from nitrogen adsorption follow the sequence Ni–charcoal < Cu–charcoal < Zn–charcoal < charcoal. Their behaviour is discussed in terms of the ionic radii of the metal ions concerned. The pore size distribution curves demonstrate the microporous nature o

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Zhang, Bing, Zhiqiang Tan, Yinhu Zhang, Qingquan Liu, Qianxia Li, and Gen Li. "Facile Synthesis of Microporous Ferrocenyl Polymers Photocatalyst for Degradation of Cationic Dye." Polymers 14, no. 9 (2022): 1900. http://dx.doi.org/10.3390/polym14091900.

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Microporous organic polymers (MOPs) were prepared by condensation reactions from substituent-group-free carbazole and pyrrole with 1,1′-ferrocenedicarboxaldehyde without adding any catalysts. The resultant MOPs were insoluble in common solvent and characterized by FTIR, XPS, TGA and SEM. An N2 adsorption test showed that the obtained polymers PFcMOP and CFcMOP exhibited Brunauer–Emmett–Teller (BET) surface areas of 48 and 105 m2 g−1, respectively, and both polymers possessed abundant micropores. The MOPs with a nitrogen and ferrocene unit could be potentially applied in degrading dye with high

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42

Mandzyuk, V. I., R. P. Lisovskiy, Yu O. Kulyk, B. I. Rachiy, and R. V. Solomovskyi. "The effect of thermal modification of turbostratic carbon on its fractal structure." Physics and Chemistry of Solid State 25, no. 1 (2024): 51–56. http://dx.doi.org/10.15330/pcss.25.1.51-56.

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Fractal structure of porous carbon materials (PCMs) obtained by thermal modification under different regimes was investigated using the method of low-temperature porometry. It was established that at modification temperatures of 300 and 600°C, materials with a developed microporous structure are formed, the surface fractal dimension of which is 2.6. At modification temperatures of 400 and 500°C, the value of the fractal dimension of the surface decreases to a value of 2.22, which indicates the formation of an almost smooth surface due to the intensive removal of carbon atoms from the near-surf

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Zi, Guo Li, Fei Yu, Fa Gui Yuan, et al. "Cerium-Doped Microporous-Mesoporous Silica Composite: Synthesis, Characterization, and Ammonia Adsorption." Advanced Materials Research 742 (August 2013): 452–55. http://dx.doi.org/10.4028/www.scientific.net/amr.742.452.

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Cerium-doped microporous-mesoporous composite material (Ce-M-M) was synthesized by the hydrothermal method. Ce-M-M was characterized by N2adsorption-desorption and FT-IR. The results showed that the Ce-M-M has composite pore structure combining both micropores and mesopores, and the pore sizes are mainly located at 1.7 nm, 2.3nm and 2.7nm. The specific surface area of the Ce-M-M was 1288 m2g-1with a pore volume of 0.66 cc/g. In addition, NH3, a harmful component in cigarette mainstream smoke could be effectively reduced 66.9% by using Ce-M-M as an adsorbent.

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Wang, He, Wenyu Wang, Hongjie Wang, et al. "Improving Supercapacitance of Electrospun Carbon Nanofibers through Increasing Micropores and Microporous Surface Area." Advanced Materials Interfaces 6, no. 6 (2019): 1801900. http://dx.doi.org/10.1002/admi.201801900.

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Cho, Il-Hoon, and Sangsoo Park. "Preparation of a Microporous Polyurethane Film with Negative Surface Charge for siRNA Delivery via Stent." International Journal of Polymer Science 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/2841682.

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Polyurethane (PU) and polyethylene glycol (PEG) were used to prepare a porous stent-covering material for the controlled delivery of small interfering RNA (siRNA). Microporous polymer films were prepared using a blend of polyurethane and water-soluble polyethylene glycol by the solution casting method; the PEG component was extracted in water to make the film microporous. This film was dipped in 2% poly(methyl methacrylate-co-methacrylic acid) solution to coat the polymer film with the anionic polyelectrolyte. The chemical components of the film surface were characterized by Fourier Transform

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Nakayama, Y., S. Nishi, H. Ishibashi-Ueda, Y. Okamoto, and Y. Nemoto. "Development of Microporous Covered Stents: Geometrical Design of the Luminal Surface." International Journal of Artificial Organs 28, no. 6 (2005): 600–608. http://dx.doi.org/10.1177/039139880502800609.

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To reduce in-stent restenosis rates we have developed newly designed covered stents, in which a stent strut is buried into a microporous elastomeric cover film to provide a physical barrier against tissue ingrowth and a pharmacological reservoir for drug-eluting. The covered stents were prepared by dip-coating balloon expandable stents mounted on a stainless steel rod in a segmented polyurethane (SPU) solution, and were subsequently subjected to laser-processed microporing (pore diameter, 100 μm; interpore distance, 200 μm). The covered stents, which possessed flat luminal surfaces and micropo

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Varma, Harish, Avinesh, Rajaram Narasimman, and Kuttan Prabhakaran. "Preparation and Characterization of Hierarchical Porous Carbon by a Hard-Template." Materials Science Forum 830-831 (September 2015): 585–88. http://dx.doi.org/10.4028/www.scientific.net/msf.830-831.585.

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Carbon based adsorbent materials are prepared from sucrose using copper as hard pore template. The adsorbent materials were obtained by heating mixtures of sucrose and copper sulphate at temperatures in the range of 200 to 1000 °C for polymerization and carbonization followed by removal of copper template by leaching with dilute nitric acid. The copper templates were produced by the carbothermal reduction of copper oxide obtained by the decomposition of copper sulphate. The surface area and porosity measurements showed the presence of micropores in the carbon samples. The micropores are genera

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48

Liu, Gui Yang, Yan Nan Li, Jun Ming Guo, and Bao Sen Wang. "Porous Carbon Prepared by a Template-Like Method Using Non-Porous Pumice Mineral as Template." Advanced Materials Research 160-162 (November 2010): 1028–31. http://dx.doi.org/10.4028/www.scientific.net/amr.160-162.1028.

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Porous carbons have been prepared by a template-like method using non-porous pumice mineral as a “template”, and sucrose and furfuralcohol as carbon sources. Nitrogen adsorption and scanning electric microscope (SEM) have been used to investigate the pore structure and morphology of the samples. The study results indicate that the surface areas of the carbons prepared from sucrose and furfuralcohol are 208 and 268 m2/g, respectively. The carbon prepared from sucrose is microporous, and the carbon prepared from furfuralcohol is a carbon with both micropores and mesopores.

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Kitagawa, Susumu, Shin-ichiro Noro, and Takayoshi Nakamura. "Pore surface engineering of microporous coordination polymers." Chem. Commun., no. 7 (2006): 701–7. http://dx.doi.org/10.1039/b511728c.

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Kaneko, K., and C. Ishii. "Superhigh surface area determination of microporous solids." Colloids and Surfaces 67 (November 1992): 203–12. http://dx.doi.org/10.1016/0166-6622(92)80299-h.

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