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_____________________________________________________________________________________________________ Abstract: Chemical reduction method was employed to prepare nano-sized Sn2SbNi alloy composites used.... Fig.2 SEM image of Sn2SbNi composite powders Fig.3 EDS spectrum of Sn2SbNi powder Fig.4 shows TEM image of a Sn2SbNi alloy powder prepared by chemical reduction. It shows clear grain shapes......
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and the reduction degree of iron was analyzed by chemical method. The results show that the laterite samples mixed with active carbon couple well with microwave and the temperature can reach approximate 1... K2Cr2O7. Nickel content was measured by the ICP-AES method. To evaluate the reduction degree of the laterite, the total iron, ferrous iron and metal iron content were analyzed with the standard chemical......
Magneli phase titanium sub-oxide conductive ceramic TinO2n-1 as support for electrocatalyst toward oxygen reduction reaction with high activity and stabilityWU Qiu-mei(伍秋美)1, RUAN Jian-ming(阮建明)1, ZHOU Zhong-cheng(周忠诚)1, SANG Shang-bin(桑商斌)2(1. State Key Laboratory of Powder Metallurgy (Central South University), Changsha 410083, China;2. School of Chemistry and Chemical Engineering, Central......
and volatile part. The reduction reaction of fixed coal was regarded as the combination of indirect reduction reaction (carbon monoxide was used as reductant) and Boudol reaction. The chemical reactions...J. Cent. South Univ. Technol. (2010) 17: 765-769 DOI: 10.1007/s11771-010-0554-9 Extraction of valuable metals from low-grade nickeliferous laterite ore by reduction roasting-ammonia leaching method......
hydrazine hydrate reduction sodium tellurite WANG Yilin, MA Haode, LIU Shengyan, LI Huaimei (School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China) Abstract... with the increase of the refluxing time, and the maximum quantum yield is 27%. Key words: semicondutor nanocrystal; chemical synthesis; optical properties; luminescence 近年来,随着制备技术的不断发展,量子点(quantum dots,QDs)广泛......
and concentration. Key words: multilayer ceramic capacitors; chemical reduction; nickel hydrazine complex; nickel powders; precursor ... for the preparation of Ni powders. Among these methods, the chemical reduction method in aqueous has been investigated intensively due to its better capabilities for controlling composition, size and shape......
J. Cent. South Univ. Technol. (2008) 15: 198-203 DOI: 10.1007/s11771-008-0038-3 Simulation of thermal and sodium expansion stress in aluminum reduction cells LI Jie(李 劼), WU Yu-yun(伍玉云), LAI... in the cathode carbon block than thermal expansion. Key words: aluminum reduction cell; stress; sodium penetration; sodium expansion; simulation ......
of different tungsten oxides and tungsten On the other hand, WO2 and H2O can form volatile tungsten oxide-hydroxide during reduction, and then the tungsten grain grows through CVT (chemical... Crystal growth of tungsten during hydrogen reduction of tungsten oxide at high temperature WU Xiang-wei(吴湘伟)1, 2, LUO Jing-song(罗劲松)2, LU Bi-zhi(陆必治)2, XIE Chen-hui(谢晨辉)2, PI Zhi-ming......
byproducts complicates the carbothermic reduction and chlorination process. The thermodynamic study of chemical reactions provides a basic understanding of the process prior to designing suitable reaction...-solid reaction, gaseous products are generated when the carbothermic reduction reaction takes place. In vacuum, gaseous products are removed continuously through pump, which can accumulate the chemical......
