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monoclinic structure as the Li3V2(PO4)3 sample synthesized by hydrogen reduction method. The particle size is about 1.5 μm together with homogenous distribution. The initial discharge capacity of Li3V2... of operation, these compounds can be used as useful positive electrode materials commercially. Usually, Li3V2(PO4)3 was synthesized by hydrogen reduction method[15]. Hydrogen reduction method needs......
Novel Salt-Assisted Combustion Synthesis of High Surface Area Ceria Nanopowders by An Ethylene Glycol-Nitrate Combustion Process Li Fengsheng1,Chen Weifan1,Li Yongxiu2,Yu Jiyi1 (1.National Special..., Nanchang 330047, China) Abstract:A novel salt-assisted combustion process with ethylene glycol as a fuel and nitrate as an oxidant to synthesize high surface area ceria nanopowders was reported......
of ferromagnetic metal fine fibers by organic gel-thermal reduction process CAO Kai(曹 凯), SHEN Xiang-qian(沈湘黔), JING Mao-xiang(景茂祥), ZHOU Jian-xin(周建新) (School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China) Abstract: The organic gel-thermal reduction process was used for the preparation of ferromagnetic metal Ni, Co and Fe fine fibers from the raw materials......
, 2008, 18(S1): s386-s392. [6] 沈华生. SiHCl3氢还原法生产超纯硅化学反应机理及工业实践经验[J]. 稀有金属, 1987, 11(6): 421-426. SHEN Hua-sheng. Reduction of SiHCl3 hydrogen production of ultra pure silicon chemical reaction... of Siemens trichlorosilane hydrogen reduction process of -CVD intrinsic kinetics model[J]. The Chinese Journal of Nonferrous Metals, 2016, In press. [15] 陈甘棠. 化学反应工程[M]. 3版. 北京: 化学工业出版社, 2007: 117-144......
that the decomposition of hydrogen peroxide is based on the simultaneous oxidation and reduction of the surface manganese ions, which suggests that the catalytic activity is closely related with the electrochemical... Electro-catalytic effect of manganese oxide on oxygen reduction at teflonbonded carbon electrode ZHOU De-bi(周德璧), L? Xin-kun(吕新坤), LIU Dan-ping(刘丹平) School of Chemistry and Chemical Engineering......
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氢还原法制备低相变温度掺钨VO2薄膜李敏娇1,张述林2,丁秀敏2,罗祎2,熊苗2(1.四川省自贡市四川理工学院 化学与制药工程学院2.四川理工学院 材料与化学工程学院,四川自贡 643000)摘 要:在钒溶胶中掺入适量聚钨酸溶胶,采用浸渍提拉法在载玻片上涂膜,涂片薄膜在氢气氛围中,在400℃温度下还原3h,制得掺钨VO2薄膜.金相显微镜观察到薄膜呈VO2的特征绿色;X荧光光谱分析得出薄膜中W,V的含量分别为3.212%和64.97%.电阻-温度曲线测试表明,VO2薄膜的相变温度为40.5℃,热滞回线宽度为ΔT=......
,较优的多金属结核氢还原条件为:多金属结核矿样35g,氢气和氮气流量均为50mL/min,还原温度600℃,还原时间90min. 进行了优化条件下的验证试验,结果列于表2. 表2 多金属结核氢还原验证试验 Table 2 Verification experiment of hydrogen reduction of polymetallic nodules 结果显示,在优... METALLURGY AND DEVELOPMENT OF INDUSTRIALIZATION APPLICATION[J]. Henan Metallurgy,2021,29(1):2-5. Novel Process of Treating Ocean Polymetallic Nodules by Low temperature Hydrogen Reduction-acid Leaching......
化条件下的验证试验,结果列于表2. 表2 多金属结核氢还原验证试验 Table 2 Verification experiment of hydrogen reduction of polymetallic nodules 结果显示,在优化的还原工艺条件下,多金属结核还原料中Ni,Co,Cu,Mn平均浸出率分别达到了98.32%,98.78%,96.71%,99.09%,说明多金属结... Metallurgy,2021,29(1):2-5. Novel Process of Treating Ocean Polymetallic Nodules by Low temperature Hydrogen Reduction-acid Leaching ZHOU Xiao-zhou, PENG Jun, SHEN Yu-jun, HUANG Zong-peng, CAI Yun-zhuo, ZHONG Shan......
%[20]. 图4 氢气还原氧化镍,氧化铁吉布斯自由能与温度之间的关系 Fig. 4 Relationship between Gibbs free energy and temperature of nickel and iron oxides using hydrogen reduction 图5 氢还原铁,镍氧化物的平衡图[20] Fig. 5...]. Beijing: Metallurgical Industry Press, 2005: 39-41. [23] 卢 杰. 硫酸钠对红土镍矿在氢气和甲烷气氛下的还原性研究[D]. 太原: 太原理工大学, 2013: 42-44. LU Jie. The reducibility research of sodium sulphate on the hydrogen and methane reduction......