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Journal articles on the topic 'Oxide'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

She, Weiqing, Zhenzhen Xu, Lianjie Zhai, et al. "Synthetic Methods Towards Energetic Heterocyclic N-Oxides via Several Cyclization Reactions." Crystals 12, no. 10 (2022): 1354. http://dx.doi.org/10.3390/cryst12101354.

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Due to the introduction of oxygen atoms, N-oxide energetic compounds have a unique oxygen balance, excellent detonation properties, and a high energy density, attracting the extensive attention of researchers all over the world. N-oxides are classified into two categories based on the structural characteristics of their skeletons: azine N-oxides and azole N-oxides, whose N→O coordination bonds are formed during cyclization. There are six kinds of azine N-oxides, namely 1,2,3,4-tetrazine-1,3-dioxide, 1,2,3,5-tetrazine-2-oxide, 1,2,3-triazine-3-oxide, 1,2,3-triazine-2-oxide, pyridazine-1,2-dioxi

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2

Möhrle, H., and R. Nießen. "Reaktionen von Isochinolinium-Salzen mit Hydroxylamin-Derivaten, 2. Mitteilung N-(Alkyl)- und N-(Aryl)-substituierte Verbindungen / Reactions of Isoquinolinium Salts with Hydroxylamine Derivatives, 2nd Communication N-(Alkyl) and N-(Aryl) Substituted Compounds." Zeitschrift für Naturforschung B 54, no. 4 (1999): 532–40. http://dx.doi.org/10.1515/znb-1999-0417.

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The N -alkyl- and N -aryl-isoquinolinium salts 7, 15-17 reacted with free hydroxylamine in pyridine to give the isoquinoline-2-oxide (9) as final product. The intermediate dioximes 8 were isolated and characterized by derivatisation with acetic anhydride to the oxime ester nitrile 10. From the reaction o f 8 with trifluoroacetic anhydride/triethylam ine 3-amino-isoquinoline- 2-oxide (12) resulted after hydrolysis. Due to the electronic influence the 5-nitroisoquinolinium salts 1 -3 react faster than the 5-hydroxy derivative 20. but with the same course of conversion via dioximes to amine oxide

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3

Novosyolov, A., I. Olianina, I. Novoselova, et al. "RESEARCH OF THE POSSIBILITY OF REDUCING THE CIRCULATION OF SULFUR OXIDE IN THE PRODUCTION OF WHITE CEMENT." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 6, no. 7 (2021): 89–98. http://dx.doi.org/10.34031/2071-7318-2021-6-7-89-98.

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The article discusses the possibility of reducing the circulation of sulfur oxide in the production of white cement by introducing alkaline potassium oxides K2O and sodium Na2O. A decrease in the circulation of sulfur oxide SO3 is achieved by increasing its yield in the clinker by transferring SO3 from a more sublimated compound of calcium sulfate CaSO4 to less sublimated potassium sulfates K2SO4 and sodium Na2SO4. Potassium and sodium oxides are introduced in the composition of carbonates and feldspar. The amount of introduced alkali oxides is controlled by the molar ratio A/S between sulfur

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4

Cha, Wu-Shin, Junsik Lee, Malkeshkumar Patel, Kibum Lee, and Joondong Kim. "Flexible and Transparent Heater with Oxide/Metal/Oxide Structure." Transactions of The Korean Institute of Electrical Engineers 72, no. 1 (2023): 87–92. http://dx.doi.org/10.5370/kiee.2023.72.1.87.

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5

Kim, Youngsun, Donghee Choi, Hosun Jang, et al. "Effects of Acupuncture at ST41, BL60, GB38 on Changes of Nitric Oxide and Nitric Oxide Synthase in Rats." Korean Journal of Acupuncture 30, no. 2 (2013): 97–103. http://dx.doi.org/10.14406/acu.2013.30.2.097.

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6

Majhi, Sanjit Manohar, Ali Mirzaei, Hyoun Woo Kim, and Sang Sub Kim. "Reduced Graphene Oxide (rGO)-Loaded Metal-Oxide Nanofiber Gas Sensors: An Overview." Sensors 21, no. 4 (2021): 1352. http://dx.doi.org/10.3390/s21041352.

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Reduced graphene oxide (rGO) is a reduced form of graphene oxide used extensively in gas sensing applications. On the other hand, in its pristine form, graphene has shortages and is generally utilized in combination with other metal oxides to improve gas sensing capabilities. There are different ways of adding rGO to different metal oxides with various morphologies. This study focuses on rGO-loaded metal oxide nanofiber (NF) synthesized using an electrospinning method. Different amounts of rGO were added to the metal oxide precursors, and after electrospinning, the gas response is enhanced thr

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7

Li, Huaying, and Aichun Zhao. "Pickling Behavior of Duplex Stainless Steel 2205 in Hydrochloric Acid Solution." Advances in Materials Science and Engineering 2019 (February 25, 2019): 1–6. http://dx.doi.org/10.1155/2019/9754528.

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The oxide-scale structure and pickling behavior of oxided 2205 duplex stainless steel in the electrolytes containing hydrochloric acid were investigated. The oxide scales mainly consist of two layers: the outer layer is dense Fe2O3, and the inner granular is FeCr2O4 spinel. During the pickling process, pittings form around the boundaries of FeCr2O4 particles or interfaces of two kinds of oxides, which results in that the electrolyte can directly react with the chromium-depleted layer along the pittings to produce an “undercut” effect so that the pickling efficiency is improved markedly. The pi

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8

Read, RW, and WP Norris. "The Nucleophilic Substitution Reactions of 5- and 7-Chloro-4,6-dinitrobenzofurazan 1-Oxide by Aromatic Amines." Australian Journal of Chemistry 38, no. 3 (1985): 435. http://dx.doi.org/10.1071/ch9850435.

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7-Chloro-4,6-dinitrobenzofurazan 1-oxide is a powerful electrophile which reacts with a variety of primary and secondary aromatic amines, even those with deactivating substituents , to give arylamino - benzofurazan oxides under mild conditions. Tertiary aromatic amines react through carbon to give aminoarylbenzofurazan oxides. During, or as a consequence of, the substitution reactions, tautomerism occurs to give in all but one example an equilibrium mixture of 5- and 7-substituted 4,6-dinitrobenzofurazan oxides in which the latter predominates. Thus 5-chloro-4,6-dinitrobenzofurazan 1-oxide and

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9

Navrotsky, Alexandra, and Anastasia Koryttseva. "Acid–Base Properties of Oxides Derived from Oxide Melt Solution Calorimetry." Molecules 28, no. 12 (2023): 4623. http://dx.doi.org/10.3390/molecules28124623.

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The paper analyzes the relationships among acid–base interactions in various oxide systems and their thermodynamics. Extensive data on enthalpies of solution of binary oxides in oxide melts of several compositions, obtained by high-temperature oxide melt solution calorimetry at 700 and 800 °C, are systematized and analyzed. Oxides with low electronegativity, namely the alkali and alkaline earth oxides, which are strong oxide ion donors, show enthalpies of solution that have negative values greater than −100 kJ per mole of oxide ion. Their enthalpies of solution become more negative with decrea

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10

Doremus, R. H. "Diffusion of water in crystalline and glassy oxides: Diffusion–reaction model." Journal of Materials Research 14, no. 9 (1999): 3754–58. http://dx.doi.org/10.1557/jmr.1999.0508.

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Diffusion of water in oxides is modeled as resulting from the solution and diffusion of molecular water in the oxide. This dissolved water can react and exchange with the oxide network to form immobile OH groups and different hydrogen and oxygen isotopes in the oxide. The model agrees with many experiments on water diffusion in oxides. The activation energy for diffusion of water in oxides correlates with the structural openness of the oxide, suggesting that molecular water is the diffusing species.

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11

Möhrle, H., and R. Nießen. "Reaktionen von Isochinolinium-Salzen mit Hydroxylamin-Derivaten, 3. Mitteilung. Mechanismus der Aminoxid-Bildung / Reactions of Isoquinolinium Salts with Hydroxylamine Derivatives, 3rd Communication. Mechanism of Amine Oxide Generation." Zeitschrift für Naturforschung B 54, no. 7 (1999): 913–22. http://dx.doi.org/10.1515/znb-1999-0715.

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2-Methylpapaverinium iodide (1) reacted with hydroxylamine to papaverine-N-oxide (2), but without a detectable intermediate and only in moderate yield, caused by the steric hindrance of the 1-substituent. The ring opened product of 2-dinitrophenylisoquinolinium salt with hydroxylamine, the enamine-oxime 3b gave rise to a 3-substituted cyclic nitrone (6), when heated with triethylamine. This alkali-stable compound was transformed with acid quantitatively to isoquinoline-N-oxide (4). The enaminonitrile 9c, treated with triethylamine showed cyclization to the iminoisoquinoline 10, which by loss o

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12

Fei, Hong Jia, and Guo Hua Yang. "Study on Sorbents Used for Hot Gas Desulfurization." Advanced Materials Research 347-353 (October 2011): 3842–45. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3842.

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This paper highlights currently excellent metal oxides used for hot gas desulfurization (HGD). Due to the different desulfurization properties, iron oxide and calcium oxide based sorbents are normally used for primary desulfurization while zinc oxide, copper oxide and manganese oxide based sorbents are often devoted to fine desulfurization. However, pure sorbents inevitably have some limitations and so, mixed oxides combining the properties of various metals like zinc ferrite and zinc titanate which get extensive concern are also introduced in this paper.

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13

Pourroy, G., J. L. Guille, and P. Poix. "Reactivity of metal oxides copper(I) oxide, manganese(II) oxide, cobalt(II) oxide, nickel(II) oxide, copper(II) oxide and zinc oxide with indialite." Chemistry of Materials 2, no. 2 (1990): 101–5. http://dx.doi.org/10.1021/cm00008a007.

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14

Liu, Haiyan, Olivier Pourret, Huaming Guo, Raul E. Martinez, and Lahcen Zouhri. "Impact of Hydrous Manganese and Ferric Oxides on the Behavior of Aqueous Rare Earth Elements (REE): Evidence from a Modeling Approach and Implication for the Sink of REE." International Journal of Environmental Research and Public Health 15, no. 12 (2018): 2837. http://dx.doi.org/10.3390/ijerph15122837.

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In this study, models were used for the first time to investigate the fate and transport of rare earth elements (REE) in the presence of hydrous manganese and ferric oxides in groundwaters from the coastal Bohai Bay (China). Results showed that REE sorption is strongly dependent on pH, as well as hydrous manganese and ferric oxide content. Higher proportions of REE were sorbed by hydrous manganese oxide as compared to hydrous ferric oxides, for example in the presence of neodymium. In this case, a mean 28% of this element was sorbed by hydrous manganese oxide, whereas an average 7% sorption wa

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15

Cochran, SJ, and FP Larkins. "An X-Ray Photoelectron Study of Doped and Supported Nickel Oxide." Australian Journal of Chemistry 38, no. 9 (1985): 1293. http://dx.doi.org/10.1071/ch9851293.

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The surfaces of lithium-and chromium-doped nickel oxide and of nickel oxide supported on alumina have been examined by X-ray photoelectron spectroscopy. The concentration of the nickel(III) species increased for the lithium-doped oxide and decreased for the chromium-doped oxide relative to the undoped oxide. The effects of doping were manifested most clearly however by the amount of oxygen-containing species adsorbed on the oxide surface rather than by variations in the nickel(III) peak intensity. Lithium-doped oxides were also shown to reduce more readily than undoped or chromium-doped oxides

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16

Zheng, Zheng Hua, Yong Yao Lv, and Hui Ping Bai. "The Rehealing Ability of Oxide Scales on K52 Nanocrystalline Coating after Pitting Corrosion." Advanced Materials Research 538-541 (June 2012): 354–58. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.354.

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The rehealing ability of the oxide scales on sputter-deposited Ni-based K52 nanocrystalline coatings after pitting corrosion had been studied by polarization curves in 3.5% NaCl solution. The results indicated that the oxide scales formed on the nano-coatings exhibited excellent rehealing ability after pitting corrosion, and the rehealing oxide scales still had high corrosion resistance. The rehealing ability was declined with longer immersion time in the chloride solution. EDX analyses revealed that the oxide scales within the pits were composed of mixed-oxides. The mixed-oxides were made up

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17

Grieb, Michael, Masato Noborio, Dethard Peters, et al. "Comparison of the Threshold-Voltage Stability of SiC MOSFETs with Thermally Grown and Deposited Gate Oxides." Materials Science Forum 645-648 (April 2010): 681–84. http://dx.doi.org/10.4028/www.scientific.net/msf.645-648.681.

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The electrical characteristics and the reliability of different oxides on the 4H-SiC Si-face for gate oxide application in MOS devices are compared under MOSFET operation conditions at room temperature, at 100°C and at 130°C. The oxides are either an 80nm thick deposited oxide annealed in NO or an 80nm thick grown oxide in diluted N2O. The deposited oxide shows significant higher QBD- and lower Dit-values as well as a stronger decrease of drain current under stress than the grown oxide. Although for the deposited oxide, the leakage current below subthreshold increases more than one order of ma

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18

Ramesh, Ramamoorthy, and Darrell G. Schlom. "Whither Oxide Electronics?" MRS Bulletin 33, no. 11 (2008): 1006–14. http://dx.doi.org/10.1557/mrs2008.220.

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AbstractIn this issue we have endeavored to answer the question, “Whither oxide electronics?” This issue provides a framework and perspective on the progress in the field of oxide electronics over the past several decades, as well as the challenges and opportunities in the years to come. Building on the foundations laid by the pioneers in the materials community and spurred by the discovery of high-temperature superconductivity, there has been both tremendous progress in understanding the complex science of oxide electronic materials and the discovery of other fascinating new phenomena, includ

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19

Naveen, Kumar J. R., Mayya D. Shrinivasa, M.B. Savitha, and P. Prasad. "Graphene-Based Metal Oxide Nano composites for Gas Sensing Applications." International Journal of Applied Engineeringn and Management Letters (IJAEML), Vol. 2, No. 2, November 2018, no. 2 (2018): 18. https://doi.org/10.5281/zenodo.1481293.

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Recently, graphene-based materials have engaged the attentiveness of all researchers doing  research related to materials  science, particularly related  to gas sensing application.  Graphene nanocomposites or nanohybrids are  the modern inclusion to the marvel  applications of graphene-based materials. One of the occupying utilisation of the graphene- based nanocomposites is chemical detection which is beneficial for observing the explosive  nature, harmfulness and inflammability of gases. Diversified metal  oxides like tin oxide,  ferric oxide, zi

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20

Bai, Hui Ping, Fu Hui Wang, and Yuan Qiang Tu. "The Electrochemical Behavior of the Rehealing Oxide Scales After Pitting Corrosion." Advanced Materials Research 476-478 (February 2012): 1399–402. http://dx.doi.org/10.4028/www.scientific.net/amr.476-478.1399.

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The electrochemical behaviour of the rehealing oxide scales on the K52 nanocrystalline coatings had been studied by polarization curves. The results indicated that the oxide scales formed on the nano-coating exhibited rehealing ability after pitting corrosion, and the coating still had excellent corrosion resistance. The rehealing ability was enhanced with prolonged re-oxidation time. EDX analyses revealed that the oxide scales within the pits were composed of mixed-oxides (Cr2O3, Al2O3 and TiO2). The mixed-oxides were made up of two layers: the external oxide layer was composed of Cr2O3 and T

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21

Ye, Zhi Guo, Xian Liang Zhou, Hui Min Meng, Xiao Zhen Hua, Ying Hu Dong, and Ai Hua Zou. "The Electrochemical Characterization of Electrochemically Synthesized MnO₂-Based Mixed Oxides for Supercapacitor Applications." Advanced Materials Research 287-290 (July 2011): 1290–98. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.1290.

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Nanostructured elements, including: manganese-molybdenum (Mn-Mo) oxide, manganese-molybdenum-tungsten (Mn-Mo-W) oxide, manganese-molybdenum-iron (Mn-Mo-Fe) oxide, manganese-molybdenum-cobalt (Mn-Mo-Co) oxide, manganese-vanadium-tungsten (Mn-V-W) oxide, manganese-vanadium-iron (Mn-V-Fe) oxide and manganese-iron (Mn-Fe) oxide, have been anodically deposited onto titanium substrates by employing an iridium dioxide interlayer (Ti/IrO2anode). The electrochemical characteristics of the resultant oxide deposits have been investigated by cyclic voltammetry (CV) in an aqueous 0.1 M Na2SO4solution. The

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22

Senzaki, Junji, Atsushi Shimozato, Kozutoshi Kajima, et al. "Electrical Properties of MOS Structures on 4H-SiC (11-20) Face." Materials Science Forum 740-742 (January 2013): 621–24. http://dx.doi.org/10.4028/www.scientific.net/msf.740-742.621.

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Threshold voltage (VTH) instability, channel mobility and oxide reliability have been investigated for meta-oxide-semiconductor (MOS) structures on 4H-SiC (11-20) face using various gate oxidation procedures. Channel mobility of n-channel MOSFET with a gate oxide by pyrogenic oxidation is higher than that by dilute-DRY oxidation followed by a nitrous oxide (N2O) post-oxidation annealing (POA). On the other hand, oxide reliability for the pyrogenic oxides is poor compared with the dilute-DRY/N2O oxides. A Hydrogen POA is effective in an improvement of channel mobility for both oxides, but cause

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23

Kim, I. H., W. S. Kim, and D. S. Rhee. "Photocatalytic Activity of Fe/Ti Mixed Oxide for Degrading Humic Acid in Water." Advanced Materials Research 717 (July 2013): 95–100. http://dx.doi.org/10.4028/www.scientific.net/amr.717.95.

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The comparative experiments for removing humic acid as environmental pollutant were conducted by adsorption on iron oxide, photooxidation in the presence of titanium dioxide catalyst and combined adsorption-photooxidation by iron-titanium mixed metal oxides, where all these active components were immobilized on polypropylene granules. The main purpose of the work was the combination of adsorption and photocatalytic oxidation processes to remove humic acid. The granules with iron-titanium mixed oxide for treating humic acid gave much better results with 1.2~3 times higher removal rates comparin

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24

Ali, Aya, Likhitha Polepalli, Sheetal Chowdhury, et al. "Silver-Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Antibacterial Properties of Titanium Implants." Journal of Functional Biomaterials 15, no. 6 (2024): 163. http://dx.doi.org/10.3390/jfb15060163.

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Titanium has a long history of clinical use, but the naturally forming oxide is not ideal for bacterial resistance. Anodization processes can modify the crystallinity, surface topography, and surface chemistry of titanium oxides. Anatase, rutile, and mixed phase oxides are known to exhibit photocatalytic activity (PCA)-driven bacterial resistance under UVA irradiation. Silver additions are reported to enhance PCA and reduce bacterial attachment. This study investigated the effects of silver-doping additions to three established anodization processes. Silver doping showed no significant influen

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25

T.Ch.Taghiyeva, T. Ch Taghiyeva. "X-RAY DIFFRACTION STUDY OF BINARY ZINC-OXIDE CATALYSTS." Azerbaijan Journal of Chemical News 04, no. 01 (2022): 60–64. http://dx.doi.org/10.32010/ajcn5012022-60.

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The phase composition of binary zinc-containing catalysts was studied by X-ray diffraction. It was found that the formation of two phases of the initial oxides is observed in all the studied catalytic systems. So, samples of the Zr-Zn-O catalytic system consist of phases of zirconium and zinc oxides, samples of the Ce-Zn-O catalytic system consist of phases of cerium and zinc oxides, while samples of the Mg-Zn-O catalytic system consist of phases of magnesium and zinc oxides. It has been established that the crystallinity of binary zinc-containing catalysts varies in the range from 70% to 89%.

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26

Kajitani, Tsuyoshi, Yuzuru Miyazaki, Kei Hayashi, Kunio Yubuta, X. Y. Huang, and W. Koshibae. "Thermoelectric Energy Conversion and Ceramic Thermoelectrics." Materials Science Forum 671 (January 2011): 1–20. http://dx.doi.org/10.4028/www.scientific.net/msf.671.1.

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Oxide thermoelectrics are relatively new materials that are workable at temperatures in the range of 400K≤T≤1200K. There are several types of thermoelectric oxide, namely, cobalt oxides (p-type semi-conductors), manganese oxides (n-type) and zinc oxides (n-type semi-conductors) for high temperature energy harvesting. The Seebeck coefficient of 3d metal oxide thermoelectrics is relatively high due to either high density of states at Fermi surfaces or spin entropy flow associated with the carrier flow. The spin entropy part dominates the Seebeck coefficient of 3d-metal oxides at temperatures abo

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27

Otsuka, Kiyoshi, Takahiro Tachi, and Akira Morikawa. "Reduction of nitric oxide and nitrous oxide by praseodymium oxides." Reactivity of Solids 1, no. 2 (1986): 153–64. http://dx.doi.org/10.1016/0168-7336(86)80042-0.

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28

Mohamed, Ahmed. "Utilizing of Nanometal Oxides for Treatment of Refinery Product Water: A Review." Muthanna Journal of Pure Science 11, no. 2 (2024): 108–30. https://doi.org/10.52113/2/11.02.2024/108-130.

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The complicated effluent stream known as refinery wastewater is produced by the refining of petroleum and contains a range of pollutants. This complex composition contains oil, organic molecules and heavy metals, where poses significant obstacles to conventional treatment procedures including biological processes, filtration and sedimentation. Therefore, modern and effective solutions are being provided by the methods of advanced treatment such as the application of Nano-oxides, advanced oxidation processes (AOPs), and membrane filtration. Synthetic nanoparticles known as Nano-oxides, which in

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29

Lim, Way Foong, Zainovia Lockman, and Kuan Yew Cheong. "Effects of Post-Deposition Annealing Time on Metal-Organic Decomposed Lanthanum Cerium Oxide Film Spin-Coated on Si Substrate." Advanced Materials Research 1024 (August 2014): 364–67. http://dx.doi.org/10.4028/www.scientific.net/amr.1024.364.

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Metal-oxide-semiconductor characteristics of MOD-derived lanthanum cerium oxide (LaxCeyOz) film deposited on n-type Si substrate have been studied. Post-deposition annealing of the oxide was performed in argon atmosphere for a dwell time, ranging from 15 to 120 min at a fixed temperature of 400°C. Results demonstrated presence of positively charged oxygen vacancies in all of the oxides post-deposition annealed for different dwell time. Acquisition of the lowest effective oxide charge as well as the lowest interface trap density and total interface trap density in oxide annealed for 120 min has

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30

Gulkhan, Genjemuratova, and Jumabayeva Janna Mahmud kizi. "THE DISSOLUTION OF ANTIMONY OXIDES, AND LEAD AND OTHER RELATED METALS IN ALKALINE-AQUEOUS ORGANIC SOLUTIONS." International Journal of Pedagogics 03, no. 06 (2023): 35–38. http://dx.doi.org/10.37547/ijp/volume03issue06-10.

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Metal oxides such as antimony oxide and lead oxide can be dissolved in alkaline-aqueous organic solutions through various methods, including acid-base reactions, complexation, ion exchange, and redox reactions. These methods involve manipulating factors such as pH, temperature, type of solvent, concentration of metal oxide, and presence of other ions. By dissolving metal oxides, they can be extracted from various materials.

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31

DUMIN, D. J. "OXIDE WEAROUT, BREAKDOWN, AND RELIABILITY." International Journal of High Speed Electronics and Systems 11, no. 03 (2001): 617–718. http://dx.doi.org/10.1142/s0129156401000988.

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The subject of oxide wearout, breakdown, and reliability will be reviewed, largely, from an historical perspective. Five topics will be discussed: oxide breakdown, oxide leakage currents, trap generation, statistics, and reliability. An early model of oxide breakdown, developed by Klein and Solomon, will be described and will be shown to be generally applicable to oxide manufactured today, and to other solid insulators, as well. Both hard and soft breakdown were included in this model and will be discussed here. The importance of stress-induced-leakage-currents (SILCs) and direct tunneling cur

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32

BISHT, RITIK SHARMA AND KAVISHA. "Development of Metal Oxide-Based Catalysts for CO2 Capture and Conversion." INTERNATIONAL JOURNAL OF BEHAVIOURAL SCIENCES 39, no. 01-02 (2024): 21. https://doi.org/10.59467/ijbs.2024.39.21.

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The increasing level of carbon dioxide in the atmosphere, mainly caused by the burning of fossil fuels, is one of the main drivers of climate change. With the global energy demand still on the increase, CO2 emission mitigation has become a critical environment issue. Carbon capture, utilization, and storage technologies, especially CO2 capture and conversion, play a central role in solving this problem. Among the multitude of CO2 capture materials, metal oxides have attracted serious interest due to their cost effective nature, excellent selectivity and thermal resistance. This overview is con

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33

Boston, R., A. Bell, V. P. Ting, et al. "Graphene oxide as a template for a complex functional oxide." CrystEngComm 17, no. 32 (2015): 6094–97. http://dx.doi.org/10.1039/c5ce00922g.

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34

Hanhela, PJ, and DB Paul. "Organic Curing Agents for Polysulfide Sealants. II. Additions of Thiols to Nitrile Oxides: Scope, Relative Reactivities and Application to the Cure of Polysulfide Sealants." Australian Journal of Chemistry 42, no. 8 (1989): 1257. http://dx.doi.org/10.1071/ch9891257.

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Efficient addition between various nitrile oxides and both short (C2) and long chain (C16) alkyl thiols , aliphatic dithiols and aryl thiols occurred rapidly at ambient temperature with the formation of thiohydroximic acid derivatives. Competitive experiments with bis( nitrile oxides) showed that for terephthalonitrile oxide the second addition proceeded more readily than the first whereas with anthracene-9,l0-bis(carbonitrile oxide) elevated temperatures were needed to obtain the diadduct. Relative reactivities of a number of thiols with nitrile oxides were also determined spectroscopically .

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35

Suchikova, Y. O., I. T. Bogdanov, and S. S. Kovachov. "Oxide crystals on the surface of porous indium phosphide." Archives of Materials Science and Engineering 2, no. 98 (2019): 49–56. http://dx.doi.org/10.5604/01.3001.0013.4606.

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Purpose: f this paper is to is to establish the patterns of oxide formation on the surface of indium phosphide during electrochemical etching of mono-InP. Design/methodology/approach: A porous surface was formed with the anode electrolytic etching. Morphology of the surface was studied with the help of scanning electron microscope JSM-6490. The analysis of chemical composition of porous surface of samples was also performed. Findings: It was shown that during the electrochemical etching of indium phosphide, oxide films and crystallites form on the surface. It has been established that crystall

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Samin, Samin, Suyanti Suyanti, Susanna Tuning Sunanti, and Wisnu Ari Adi. "Synthesis and Certification of Lanthanum Oxide Extracted from Monazite Sand." Indonesian Journal of Chemistry 20, no. 6 (2020): 1213. http://dx.doi.org/10.22146/ijc.44327.

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Synthesis and certification of lanthanum oxide extracted from monazite sand have been carried out. This research aimed to increase the added value of monazite sand and obtain the lanthanum oxide in-house certified reference material (CRM). Synthesis of lanthanum oxide consists of several stages, namely: monazite sand digestion, rare-earth elements hydroxide [REE(OH)3] precipitation, Ce separation, Nd separation, lanthanum oxalate precipitation, and calcination. Certification of lanthanum oxide was carried out by determining the average concentration of the oxides and its uncertainty from the s

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Usoltseva, Natalya, Valery Korobochkin, Alesya S. Dolinina, and Alexander M. Ustyugov. "Infrared Spectra Investigation of CuO-Al₂O₃ Precursors Produced by Electrochemical Oxidation of Copper and Aluminum Using Alternating Current." Key Engineering Materials 712 (September 2016): 65–70. http://dx.doi.org/10.4028/www.scientific.net/kem.712.65.

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Joint electrochemical oxidation of copper and aluminum using alternating current (AC) was performed. The electrolysis products were dried on air (method carbonate) and at the residual pressure of 3-5 kPa (oxide method). Cu-Al layered double hydroxide (Cu-Al/LDH) are formed at air carbonization. Oxide method saves copper (I) oxide. Heat treatment causes the decomposition of LDH to CuO and Al2O3 as well as Cu2O oxidation to CuO. Copper-aluminum spinel (CuAl2O4) is the product of solid-phase interaction of copper and aluminum oxides. Infrared spectra revealed that oxide method provides the boehmi

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JIANG, ZHI, HAIRONG ZHANG, ZHONGPENG WANG, MINGXIA CHEN, and WENFENG SHANGGUAN. "SIMULTANEOUSLY CATALYTIC REMOVAL OF NOx AND SOOT ON RARE EARTH ELEMENT OXIDE LOADED WITH POTASSIUM AND TRANSITION NANOSIZED METAL OXIDES." Nano 03, no. 04 (2008): 239–44. http://dx.doi.org/10.1142/s1793292008001088.

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The simultaneous catalytic removal of NO x and soot over the rare earth element (REE) oxide-based mixture oxides loaded with potassium and transition nanosized metal oxide (designated as M/K/REE oxide) was investigated by using temperature-programmed reaction (TPR). The influence of the type of REE oxides together with the type and amount of transitional metal oxides on the catalytic removal activity was discussed. K / Nd 2 O 3 was found to be the most active oxide among the REE oxides to simultaneous remove the NO x and soot under lean conditions. Chromium oxide was more active than the other

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Cole, Jordan, and Karen L. Syres. "Ionic liquids on oxide surfaces." Journal of Physics: Condensed Matter 34, no. 21 (2022): 213002. http://dx.doi.org/10.1088/1361-648x/ac5994.

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Abstract Ionic liquids (ILs) supported on oxide surfaces are being investigated for numerous applications including catalysis, batteries, capacitors, transistors, lubricants, solar cells, corrosion inhibitors, nanoparticle synthesis and biomedical applications. The study of ILs with oxide surfaces presents challenges both experimentally and computationally. The interaction between ILs and oxide surfaces can be rather complex, with defects in the oxide surface playing a key role in the adsorption behaviour and resulting electronic properties. The choice of the cation/anion pair is also importan

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Zhao, Yan, Lei Liu, Dengcui Yang, Weinan Li, Jianlin Yu, and Zhengzhi Zhao. "Analysis of the Oxidation Behavior and Formation of an Extremely Thin Oxide Layer with a Novel Hot-Stamped Steel." Metals 14, no. 7 (2024): 760. http://dx.doi.org/10.3390/met14070760.

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This study investigates enhancing the high-temperature oxidation resistance of hot-stamped steels by adding the Cr/Mn/Si elements to form an extremely thin oxide layer. Under low oxygen partial pressure conditions and high Cr content in the matrix, the oxide layer of a 38Cr3MnNbVMo hot-rolled plate containing the Mo element and high Si content was further thinned to 0.6 μm after cooling at 900 °C for 5 min. The structure of the ultra-thin oxide layer consists of Fe3O4, Mn oxides, FeCr2O4, Cr2O3, and Fe2SiO4 oxides. Compared to other antioxidant elements, under low oxygen partial pressure condi

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Szpunar, Jerzy A., and Bae Kyun Kim. "High Temperature Oxidation of Steel; New Description of Structure and Properties of Oxide." Materials Science Forum 539-543 (March 2007): 223–27. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.223.

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The quality of steel sheets is strongly affected by the surface defects that can be generated during hot rolling and are often related to scales removal operation. These defects are related to rather complex high temperature oxidation processes. In order to reduce an occurrence of the defects, it is necessary to understand better the formation of iron oxides during high temperature oxidation, the structure of the interfaces with the substrate and between different oxide phases. However, due to the lack of good experimental research tools details of iron oxide microstructures were not investiga

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Moonngam, Suphitcha, Pranpreeya Wangjina, Ekkarut Viyanit, and Chaiyasit Banjongprasert. "Characterizing Oxide Inclusions in Welded Lean Duplex Stainless Steels and Their Influence on Impact Toughness." Materials 16, no. 5 (2023): 1921. http://dx.doi.org/10.3390/ma16051921.

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In newly developed 2101 lean duplex stainless steel, oxide inclusions have been detected on welded metal zones after subjecting them to flux-cored arc welding with an E2209T1-1 flux-cored filler metal. These oxide inclusions directly affect mechanical properties of the welded metal. Hence, a correlation requiring validation has been proposed between oxide inclusions and mechanical impact toughness. Accordingly, this study employed scanning electron and high-resolution transmission electron microscopy to assess the correlation between oxide inclusions and mechanical impact toughness. Investigat

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Lee, Hwan-Hee, Hyuk-Min Kwon, Sung-Kyu Kwon, et al. "Comparative Analysis of Flicker Noise and Reliability of NMOSFETs with Plasma Nitrided Oxide and Thermally Nitrided Oxide." Journal of the Korean Institute of Electrical and Electronic Material Engineers 24, no. 12 (2011): 944–48. http://dx.doi.org/10.4313/jkem.2011.24.12.944.

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Awaluddin, Amir, Riska Anggraini, Siti Saidah Siregar, Muhdarina, and Prasetya. "A one-pot synthesis of Fe-doped cryptomelane type octahedral molecular sieve manganese oxide for degradation of methylene blue dye." MATEC Web of Conferences 276 (2019): 06005. http://dx.doi.org/10.1051/matecconf/201927606005.

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The Fe-doped octahedral molecular sieve manganese oxides have been successfully synthesized by one-pot synthesis of the reaction between KMnO4 and glucose using sol-gel methods. The oxide products are then characterized by various techniques such as X-ray diffraction, scanning electron microscopy, atomic absorption spectroscopy and average oxidation state (AOS) of manganese in manganese oxides. The as-synthesized manganese oxide and Fe-doped manganese oxides are used as catalysts for the degradation of methylene blue dye using hydrogen peroxide as oxidants. The results indicated that the Fe-do

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Peng, Xiangyu, and Hongna Mu. "A Study on the Temporal and Spatial Changes of Nitrogen Oxides in the Southwest Corner of Jingzhou City Wall." Journal of Global Humanities and Social Sciences 5, no. 3 (2024): 120–25. http://dx.doi.org/10.61360/bonighss242015970303.

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With the growth of people's consumption capacity, the production and consumption of energy are rapidly increasing every year, and the emissions of nitrogen oxides are also increasing. Nitrogen oxides include many types of compounds, such as nitric oxide (NO), nitrogen dioxide (NO2), nitrous oxide (N2O), etc. Except for nitrogen dioxide, the properties of other nitrogen oxides are extremely unstable. Therefore, in the actual atmosphere, nitric oxide (NO) and nitrogen dioxide (NO2) are usually collectively referred to as nitrogen oxides (NOx). This article measured and compared the nitrogen oxid

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Ohtsuka, Toshiaki. "Growth of passive oxide films on iron and titanium under non-stationary state." Corrosion Reviews 36, no. 1 (2018): 87–104. http://dx.doi.org/10.1515/corrrev-2017-0051.

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AbstractGrowth of passive oxides on iron and titanium under the non-stationary state was studied during constant current density (CD) oxidation and potential sweep oxidation. Increase and decrease of the thickness of the passive oxide film were determined from the relation between dissolution and growth CDs. By using rotating Fe disc-Pt ring electrode, the CDs of the dissolution from the oxide to solution and the growth of the passive oxide on iron were simultaneously measured. From the ratio of the growth CD to the dissolution CD and the pH dependence of the growth CD, a possible mechanism wa

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Cheung, Kin P. "On the “intrinsic” breakdown of thick gate oxide." Journal of Applied Physics 132, no. 14 (2022): 144505. http://dx.doi.org/10.1063/5.0118081.

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The thick gate oxide breakdown mechanism has become an important topic again due to the rising demand for power electronics. The failure of the percolation model in explaining the observed Weibull shape factor, β, seriously hampers the establishment of thick gate oxide breakdown models and the ability to project reliability from measurement data. In this work, lifetime shortening by oxide defects is simulated to produce degraded breakdown distributions that match experimentally observed βs. The result shows that even a low density of defects with the right energy is enough to greatly degrade β

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Bulyarskiy S. V., Gusarov G. G., Dudin A. A., Koiva D. A., and Litvinova K. I. "Diagnosis of the technology of titanium and hafnium oxides by luminescence methods." Optics and Spectroscopy 131, no. 1 (2023): 23. http://dx.doi.org/10.21883/eos.2023.01.55512.4086-22.

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The article shows the role of oxygen vacancies in the formation of luminescence bands of titanium and hafnium oxides, and also demonstrates the relationship between the intensity of luminescence bands and the conditions for the synthesis of films of these materials. It is concluded that photoluminescence is a very sensitive method for diagnosing the composition of oxides. Luminescence bands at 2.45 eV in titanium oxide and 2.91 eV in hafnium oxide make it possible to analyze the change in the film composition under various technological conditions of their production. Keywords: oxygen vacancie

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DeForest, Tinsley Elizabeth, Shekhar Bhansali, Frank K. Urban, et al. "Exploring the Dielectric Properties of Lanthanide Oxide Thin Films." ECS Meeting Abstracts MA2023-02, no. 32 (2023): 1582. http://dx.doi.org/10.1149/ma2023-02321582mtgabs.

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Lanthanide oxides play a crucial role in various applications, such as solid oxide fuel cells, catalysis, and electronics, and their dielectric properties are essential in determining their performance. Ellipsometry is a powerful technique that can provide high-precision information on the dielectric properties of lanthanide oxides. By determining parameters such as the refractive index, thickness, and extinction coefficient of lanthanide oxides, ellipsometry can aid in the design and optimization of lanthanide oxide-based devices and materials for various applications. Our research group is c

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Ohtsuki, Tomio, and Petrus Christiaan Pistorius. "Oxide Behavior During Laser Surface Melting." Metals 15, no. 6 (2025): 627. https://doi.org/10.3390/met15060627.

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Parts fabricated by laser powder bed fusion (LPBF) contain oxide inclusions, which can be detrimental to fatigue resistance. Under typical LPBF conditions, the atmosphere contains enough oxygen to oxidize reactive elements such as aluminum and titanium, forming oxides in the parts. In this work, mechanisms of oxide formation and oxide alteration were studied by laser-remelting the surfaces of bulk specimens of IN718 and AlSi10Mg, without the addition of metal powder. Calculations based on the mass transfer of oxygen to the melt pool surface indicated that direct oxidation of the melt pool did

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