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Type: Journal article
Title: Highly stable PtP alloy nanotube arrays as a catalyst for the oxygen reduction reaction in acidic medium
Author: Zhang, L.
Wei, M.
Wang, S.
Li, Z.
Ding, L.
Wang, H.
Citation: Chemical Science, 2015; 6(5):3211-3216
Publisher: Royal Society of Chemistry
Issue Date: 2015
ISSN: 2041-6520
Statement of
Lili Zhang, Meng Wei, Suqing Wang, Zhong Li, Liang-Xin Ding and Haihui Wang
Abstract: Nanostructured Pt-metal alloys have shown impressive catalytic properties for the oxygen reduction reaction (ORR) in acidic medium, but their long-term stability has not been satisfactory. Herein, we look beyond the traditional Pt-metal alloys and have developed a new kind of Pt-nonmetal alloy electrocatalyst for the ORR. Specifically, the novel catalyst is composed of interconnected platinum monophosphide (PtP) alloy nanocrystals (∼3-4 nm) and featured supportless nanotube array morphologies. Due to the unique combination of composition and structure, the obtained PtP alloy nanotube arrays not only exhibited remarkable ORR activity, but also showed almost no degradation of the half-wave potential after accelerated durability tests. The result suggests that alloying Pt with a nonmetallic element (such as P) is indeed an effective approach to address the poor stability of Pt-based catalysts in acidic medium.
Rights: This journal is © The Royal Society of Chemistry 2015. Open Access Article. Published on 18 March 2015. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence
DOI: 10.1039/c5sc00124b
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