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Fabrication, lattice strain, corrosion resistance and mechanical strength of nanocrystalline nickel films PAN Yong(潘 勇)1, 2, ZHOU Yi-chun(周益春)1, 2, ZHOU Zhao-feng(周兆锋)1, 2, HUANG Yong-li(黄勇力)1, 2...; Abstract: Nanocrystalline nickel films of 17-40 nm grain sizes were prepared using pulsejet electrodeposition. Structure, corrosion and lattice strain were analysed......
acid[5-7] and high pressure acid leaching[8-10]. High pressure acid leaching is the main process for industrial production of nickel and cobalt with lateritic ore, but it is applicable only... has been created to recover metal values using sulfation-roasting process due to its ease of operation[11-15]. In this process, nickel is preferentially sulfated with the addition of sulfuric acid less......
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and sodium hydroxide. The subsequent electroless plating was carried out in nickel sulfate bath. The SEM observation shows that the deposition is uniform and compact. The polarization curve... nickel plating in basic nickel carbonate bath with chromate acid pickling and HF activation[3-5]. However, the electrochemical potential of nickel is much noble than that of magnesium alloys, galvanic......
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Effect of Lu2O3 on Charge/discharge Performances of Spherical Nickel Hydroxide at High Temperature Ren Junxia1,Li Yuzhan1,Yan Jie1,Wang Xiaojian1,Gao Xueping1 (1.Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071, China) Abstract:Nickel-metal hydride (Ni/MH) batteries are one of promising batteries for electric vehicle applications, but at high temperature the charge......
with nickel contents for the formation of nickel sulfate. In addition, several recent studies have focused on effects of additives on passivation in a laboratory scale [13, 18]. This paper focuses...). A synthetic electrolyte was utilized for all electrochemical tests, and it was prepared by using sulfuric acid (Analytically pure), copper sulfate (analytically pure) and deionized water. The additives (glue......
and deposition processing parameters The experimental compositions of the electrolytes and operating parameters are listed in Table 1. Among adding ingredients, nickel sulfate worked as the main salt; nickel chloride worked as the anodic activating agent. Boric acid worked as the buffer reagent that serves to maintain the pH value in electrolytic solution, restrain the precipitation......
Preparation of carbon nanotubes by ethanol catalytic combustion technique using nickel salt as catalyst precursor LI Fei(李 飞) 1,2 , ZOU Xiao-ping(邹小平) 1,2, CHENG Jin(程 进)1,2, ZHANG... was employed as substrate, nickel nitrate (Ni(NO3)2) and nickel chloride (NiCl2) as catalyst precursor, and ethanol as carbon source. The cleaned copper substrate was dipped into catalyst precursor......
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