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Synthesis and characterization of the structural and electrochemical properties of Nd-Al codoped amorphous nickel hydroxide刘长久1,2,陈世娟1,李延伟1,21. Key Laboratory of New Processing Technology...="ChDivSummary">Nd-Al codoped amorphous nickel hydroxide powders were synthesized by microemulsion precipitation method combined with rapid freezing technique.The microstructure of the prepared samples......
High Temperature Performances of Spherical Nickel Hydroxide with Additive Y2O3 阎杰1,叶茂1,米欣1,高学平1,魏进平1 (1.Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China) Abstract:The effect of Y2O3 as additive to the positive electrode on the high-temperature performances of the Ni-MH batteries was studied. The specific capacities of the positive electrode in Ni-MH battery......
Influence of Sodium Carbonate Amount on Crystalline Phase and Structure Stability for Doping Nickel Hydroxide赵腾起,朱燕娟,LI Wenhua,FENG Zuyong,ZHANG Wei,JIAN XiuwenSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology摘 要:Alpha nickel hydroxide has better performances than commercial beta nickel hydroxide. However, the main......
Ytterbium Hydroxide and Erbium Hydroxide Coating of Spherical Nickel Hydroxide Positive Materials for Ni-MH Batteries at High-Temperature张文广,蒋文全,于丽敏,傅钟臻,夏雯,郭荣贵,陈飞彪,李涛摘 要:For the purpose of the important high-temperature charge-discharge performances of spherical Ni(OH)2 used as positive materials for Ni-MH batteries, Yb(OH)3 and Er(OH)3 were used......
laterite ores. First of all, silicon and magnesium were removed from lateritic ore by high concentration sodium hydroxide leaching and carbonation respectively, so as to enrich nickel. Then the method... process for treating nickeliferous laterite ore was established. First, silicon was leached from the laterite-nickel ore by high concentration sodium hydroxide for preparing silica......
spherical nickel hydroxide powder is optimum as positive electrode of high power Ni-MH battery because of its excellent property. But the performances at high temperature (above 50 ℃) is still... and mechanically added with 1% (atomic fraction) Er2O3 at 1C are 12.6% and 11.7%, respectively, higher than those of the samples without erbium at 70 ℃. Key words: Ni-MH battery; nickel hydroxide......
hydroxide by hydrazine released from the ligand exchange reaction between nickel hydrazine complex and NaOH. In comparison with the method of preparing Ni powders from nickel salts, the method of making... of the solution gradually changes to green due to the formation of nickel hydroxide by the ligand exchange of Cl- by OH- as follows: [Ni(N2H4)n]Cl2+2NaOH→Ni(OH)2+nN2H4+2NaCl (5) Then, the color......
is 2.5, however, iron hydroxide (Fe(OH)3) is found in it. Iron hydroxide colloid entrains metal ions, which leads to loss of nickel ion and filtration difficulty. When the pH values are 1.5, 2.0 and 2.5... Leaching of nickel laterite ore assisted by microwave technique ZHAI Xiu-jing(翟秀静), WU Qiang(武 强), FU Yan(符 岩), MA Lin-zhi(马林芝), FAN Chuan-lin(范川林), LI Nai-jun(李乃军) School......
, 16(3): 273-281. [2] KARIDAKIS T, AGATZINI-LEONARDOU S, NEOU-SYNGOUNA P. Removal of magnesium from nickel laterite leach liquors by chemical precipitation using calcium hydroxide and the potential use...J. Cent. South Univ. Technol. (2008) 15: 318-323 DOI: 10.1007/s11771-008-0060-5 Surface modification of magnesium hydroxide by γ-aminopropyltriethoxysilane LUO Wei(罗 伟), FENG Qi-ming(冯其明), OU......
Nickel Electroplating Toru Murakami1,Kazutoshi Komori2,Yasuo Uchikoshiki3 (1.C. Uyemura. & Co.,Ltd. ,Osaka, Japan;2.Uyemura(Shanghai;3.Uyemura-Solar(Shenzhen) 摘要:Nickel electroplating has been... use. At first the basics of nickel electroplating, for example, purpose, use, merit & demerit, nickel plating solution, current efficiency,limiting current density, additional agents and their behaviors......
