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Influence of Yttrium Addition on the Reduction Property of Tungsten Oxide Prepared via Wet Chemical MethodNan Liu1,Zhi Dong1,Zongqing Ma1,Liming Yu1,Yongchang Liu11. State Key Lab of Hydraulic... exhibit unique morphologies and micro structures.The yttrium addition during chemical reaction process affects not only the composition of tungsten acid hydrate precursors,but also the reduction......
Preparation and characterization of Mo-Cu nanocomposite powders by chemical liquid reduction processLI Yi(李翼), WANG De-zhi(王德志), SUN Ao-kui(孙翱魁)(School of Materials Science and Engineering, Central South University, Changsha 410083, China)Abstract:A novel chemical liquid reduction process was employed to prepare nanosized Mo-Cu powders. The precipitates were first obtained by adding ammonium......
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J. Cent. South Univ. (2016) 23: 1890-1898 DOI: 10.1007/s11771-016-3244-4 Influence of hydrogen-enriched atmosphere under coke oven gas injection on reduction swelling behaviors of oxidized pellet... reduction swelling behaviors and reaction mechanism of oxidized pellet in hydrogen-enriched atmosphere under coke oven gas injection. In this work, the effects of hydrogen concentration in N2-CO-H2......
; (1 000 ℃) may unfavorably slow the reduction rate. From the kinetics analysis at 950 ℃, the most part of reduction course is likely controlled by interfacial chemical reaction mechanism... is controlled by chemical reaction then by combination of chemical reaction and gas mass diffusion [4-5]. WANG et al [6] found that reduction rate increased with the increase of temperature and hydrogen content......
): 9747-9751. DOI: 10.1002/anie.201703938. [7] FORMENTI D, FERRETTI F, SCHARNAGL F K, BELLER M. Reduction of nitro compounds using 3d-non-noble metal catalysts [J]. Chemical Reviews, 2019, 119(4): 2611-2680. DOI... A, JEGOU P, JOUSSELME B, PALACIN S. Electrochemical performance of annealed cobalt- benzotriazole/CNTs catalysts towards the oxygen reduction reaction [J]. Physical Chemistry Chemical Physics, 2011, 13(48......
September 2012 Abstract: Ag-Cu alloy nanoparticles were synthesized by simple low temperature chemical reduction method using metal salts (acetate/sulphates) in aqueous solution with sodium borohydride as reducing agent. The chemical reduction was carried out in the presence of nitrogen gas in order to prevent the oxidation of copper during the reaction process. The alloy nanoparticles were characterized......
The dissolution of the g/g′ eutectic, the solid solution of g′, the reduction or elimination of chemical segregation are all controlled by diffusion of elements. A number of degradation mechanisms are usually...) Higher levels of cobalt accelerate the solution process and the reduction or elimination of chemical segregation. References [1] CARON P, KHAN T. Third generation superalloys for single crystal blades......
Energy Letters, 2017, 2(6): 1370-1377. DOI: 10.1021/acsenergylett.7b00119. [3] CHENG Fang-yi, CHEN Jun. Metal–air batteries: From oxygen reduction electrochemistry to cathode catalysts [J]. Chemical... electrocatalytic activity for oxygen reduction reaction [J]. Frontiers of Chemical Science and Engineering, 2018, 12(4): 790-797. DOI: https://doi.org/10.1007/s11705-018-1706-y. [32] HUANG Jian-jian, ZHU Neng-wu......
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