標題: EQCM Study on Pulse Current Pt Electrodeposition
作者: Lu, I-Te
Hsieh, Yu-Chi
Chen, Po-Chun
Wu, Pu-Wei
材料科學與工程學系
生醫電子轉譯研究中心
Department of Materials Science and Engineering
Biomedical Electronics Translational Research Center
關鍵字: Pulse Current Electrodeposition;EQCM;Platinum;Electrodeposition Efficiency
公開日期: 1-十二月-2015
摘要: Electrochemical Quartz Crystal Microbalance (EQCM) was used to investigate the events occurring during current-on (T-on) and current-off (T-off) for pulse current electrodeposition of Pt in both air and Ar atmospheres. The EQCM profiles indicated a transient mass loss when the current was turned on, followed by a linear mass gain associated with the Pt electrodeposition from the H2PtCl6 plating bath. During the T-off, the mass revealed a steady increase until it leveled off after 10 sec. The minute transient mass loss during the initial stage of T-on was attributed to the reduction of the adsorbed PtCl62- whereas the mass gain during the T-off was due to the absorption of PtCl62- onto the freshly-deposited Pt surface. In air atmosphere, the parasitic oxygen reduction reaction consumed part of the reduction current and thus, reduced the Pt plating efficiency by 6%. In addition, smaller mass gains during T-off and T-on were observed for the Pt plating in air atmosphere.
URI: http://hdl.handle.net/11536/129565
ISSN: 1452-3981
期刊: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume: 10
Issue: 12
起始頁: 10199
結束頁: 10209
顯示於類別:期刊論文