Title: Electrochemical characterization and regeneration of sulfur poisoned Pt catalysts in aqueous media

Authors (8): C. -H. Chen, A. Halford, M. Walker, C. Brennan, S. C. S. .Lai, D. J. Fermín, P. R. Unwin, P. Rodríguez

Themes: Energy (2018)

DOI: 10.1016/j.jelechem.2018.03.015

Citations: 21

Pub type: article-journal

Publisher: Elsevier BV

Issue:

License: https://www.elsevier.com/tdm/userlicense/1.0/

Publication date(s): 2018/05 (print)

Pages: 138-148

Volume: 816 Issue:

Journal: Journal of Electroanalytical Chemistry

Link: https://api.elsevier.com/content/article/PII:S1572665718301826?httpAccept=text/xml

URL: http://dx.doi.org/10.1016/j.jelechem.2018.03.015

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    The poisoning of Pt catalysts from sulfur compounds with sulfur in different oxidation states of, 2−, 3+ and 4+ was studied.

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    Poisoned Pt catalysts can be renewed by consecutive potential cycling with an upper potential limit of 1.25 V versus RHE.

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    XPS analysis has demonstrated the conversion of sulfur to sulfate during the voltammetric regeneration.

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    Pt single-crystal electrodes revealed surface-structure sensitivity of the electro-oxidation of the adsorbed sulfur species.

Name Description Publised
1-s2.0-S1572665718301826-mmc1.pdf Supl. data for Electrochemical characterization and regeneration of sulf... 2018


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