文献类型：期刊文献

英文题名：Effects of Bromide Ions in Anomalous Codeposition of Ni-Co Alloys with a Sulfamate Based Electrolyte

作者：Jiang, Yiming Chen, Chun-Yi Kurioka, Tomoyuki Luo, Xun Yamane, Daisuke Sone, Masato Chang, Tso-Fu Mark

第一作者：Jiang, Yiming

通信作者：Jiang, YM[1];Chang, TFM[1]

机构：[1]Tokyo Inst Technol, Inst Innovat Res, 4259 Nagatsuta Cho,Midori Ku, Yokohama, Kanagawa 2268503, Japan;[2]Guizhou Inst Technol, Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Peoples R China;[3]Ritsumeikan Univ, Dept Mech Engn, 1-1-1 Noji Higashi, Kusatsu, Shiga 5258577, Japan

第一机构：Tokyo Inst Technol, Inst Innovat Res, 4259 Nagatsuta Cho,Midori Ku, Yokohama, Kanagawa 2268503, Japan

通信机构：corresponding author), Tokyo Inst Technol, Inst Innovat Res, 4259 Nagatsuta Cho,Midori Ku, Yokohama, Kanagawa 2268503, Japan.

年份：2023

卷号：170

期号：7

外文期刊名：JOURNAL OF THE ELECTROCHEMICAL SOCIETY

收录：;EI(收录号：20233014449137);Scopus(收录号：2-s2.0-85165685649);WOS:【SCI-EXPANDED(收录号:WOS:001029988700001)】；

基金：This study is based on results obtained from a project commissioned by the New Energy and Industrial Technology Development Organization, and was supported by JSPS KAKENHI Grant Number JP21K04827, the Research Center for Biomedical Engineering, and in part by World Research Hub (WRH) Program of International Research Frontiers Initiative, Tokyo Institute of Technology.

语种：英文

外文关键词：alloy electrodeposition; Ni-Co alloy; anomalous codeposition; bromide ions; pH

摘要：Alloy electrodeposition of Ni-Co alloys is known to show an anomalous codeposition behavior, which the concentration of cobalt in the deposited alloy is higher than the concentration of cobalt ions in the electrolyte. In this study, the cobalt content in the alloy is increased from 30 at% to 60 at% through introduction of bromide ions into a sulfamate bath, while addition of chloride ions does not give any significant influences to the alloy. The bromide ions are found to promote the reduction of cobalt ions but inhibit the reduction of nickel ions. Effects of the pH are also investigated to provide possible explanation to the phenomenon observed, and the anomalous codeposition behavior becomes more obvious in a more acidic electrolyte.