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 |