Synthesis, characterization, and testing of Pt-NPG catalysts developed by de-alloying of electrodeposited CuxAu(1−x) thin films
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- 作者：Jiaxin Xia ; Innocent Achari ; Stephen Ambrozik ; Nikolay Dimitrov ; dimitrov@binghamton.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Pt ; Nanoporous Au ; Thin film ; Cu-Au alloys ; De-alloying ; Platinization ; Catalysis ; Formic acid oxidation
- 刊名：Materials Research Bulletin
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：85
- 期：Complete
- 页码：1-9
- 全文大小：2372 K
文摘
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Nanoporous Au (NPG) is synthesized by de-alloying of electrodeposited Cu-Au thin films.
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Composition independent critical potentials are observed in the de-alloying of said films.
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The NPG in this work features three-fold larger surface area than Ag-Au counterparts.
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Pt coatings render the NPG films highly active formic acid (FA) oxidation catalysts.
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The developed Pt-NPG catalysts feature mass activity of 3–5 A/mg in FA oxidation.