In Situ Analysis of Chloride Effect on Platinum Dissolution by a Channel-Flow Multi-Electrode System
作者： Zhongqi Wang , Eiji Tada , Atsushi Nishikata
DOI: 10.1149/2.0431409JES
关键词:
摘要: The effect of Cl− on Pt dissolution under both potentiostatic and potential cycling conditions is reported, using a channel-flow multielectrode (CFME) as an in situ detection method. To avoid the contamination entire CFME system by Cl−, liquid-phase chloride ion gun placed upstream double electrode. Under conditions, enhances forming PtCl42− at potentials below 1.0 V PtCl62− above 1.2 V. accelerates enhanced formation PtCl42−. cathodic Pt2+ during PtO2 reduction also increased presence Cl−. A mechanism for proposed. © 2014 Electrochemical Society. [DOI: 10.1149/2.0431409jes] All rights reserved.
ecsdl.org
researchgate.net 参考文章(34)
Angel A. Topalov, Serhiy Cherevko, Aleksandar R. Zeradjanin, Josef C. Meier, Ioannis Katsounaros, Karl J. J. Mayrhofer, Towards a comprehensive understanding of platinum dissolution in acidic media Chemical Science. ,vol. 5, pp. 631- 638 ,(2014) , 10.1039/C3SC52411F
Zhongqi Wang, Eiji Tada, Atsushi Nishikata, In-Situ Monitoring of Platinum Dissolution under Potential Cycling by a Channel Flow Double Electrode Journal of The Electrochemical Society. ,vol. 161, ,(2014) , 10.1149/2.012404JES
Koji Matsuoka, Shigeru Sakamoto, Kunihiro Nakato, Akira Hamada, Yasuhiko Itoh, Degradation of polymer electrolyte fuel cells under the existence of anion species Journal of Power Sources. ,vol. 179, pp. 560- 565 ,(2008) , 10.1016/J.JPOWSOUR.2008.01.027
Shigenori Mitsushima, Yuki Koizumi, Shunsuke Uzuka, Ken-Ichiro Ota, Dissolution of platinum in acidic media Electrochimica Acta. ,vol. 54, pp. 455- 460 ,(2008) , 10.1016/J.ELECTACTA.2008.07.052
A.P. Yadav, A. Nishikata, T. Tsuru, Effect of halogen ions on platinum dissolution under potential cycling in 0.5 M H2SO4 solution Electrochimica Acta. ,vol. 52, pp. 7444- 7452 ,(2007) , 10.1016/J.ELECTACTA.2007.06.029
D.C. Johnson, D.T. Napp, S. Bruckenstein, A ring-disk electrode study of the current/potential behaviour of platinum in 1.0 M sulphuric and 0.1 M perchloric acids Electrochimica Acta. ,vol. 15, pp. 1493- 1509 ,(1970) , 10.1016/0013-4686(70)80070-6
Koji Fushimi, Kazuhisa Azumi, Masahiro Seo, Use of a Liquid‐Phase Ion Gun for Local Breakdown of the Passive Film on Iron Journal of The Electrochemical Society. ,vol. 147, pp. 552- 557 ,(2000) , 10.1149/1.1393231
Seokkoo Kim, Jeremy P. Meyers, The influence of hydrogen- and cation-underpotential deposition on oxide-mediated Pt dissolution in proton-exchange membrane fuel cells Electrochimica Acta. ,vol. 56, pp. 8387- 8393 ,(2011) , 10.1016/J.ELECTACTA.2011.07.031
Koji Fushimi, Masahiro Seo, Initiation of a Local Breakdown of Passive Film on Iron due to Chloride Ions Generated by a Liquid-Phase Ion Gun Journal of The Electrochemical Society. ,vol. 148, ,(2001) , 10.1149/1.1407832
Liyan Xing, Gregory Jerkiewicz, Diane Beauchemin, Ion exchange chromatography coupled to inductively coupled plasma mass spectrometry for the study of Pt electro-dissolution Analytica Chimica Acta. ,vol. 785, pp. 16- 21 ,(2013) , 10.1016/J.ACA.2013.04.048