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High-efficiency Methanol Oxidation Electrocatalyst Realized by Ultrathin PtRuM-O (M = Ni, Fe, Co) Nanosheets

Abstract

The development of efficient electrocatalysts for methanol oxidation reaction (MOR) is crucial. Recently, PtRu-based ternary-metal materials are considered to be effective and best-performing CO anti-poisoning catalysts. However, the PtRu-based ternary-metal ultrathin (≤ 2 nm) nanosheets (NSs) catalysts with tailored composition for MOR are not reported. Here, a general method for controlling the synthesis of a class of ultrathin PtRuM-O (M = Ni, Fe, Co) NSs is reported for the first time. By optimizing the metal ratio, Pt7RuNi2-O NSs catalyst has the highest electrocatalytic activity (mass activity, 3.57 A mgPt-1) for MOR in PtRuM-O NSs, PtRu-O NSs, which is 10.5 times higher than that of commercial Pt/C (0.34 A mgPt-1). And the Pt7RuNi2-O NSs also has better stability and CO anti-poisoning property in the prepared materials. In addition, ultrathin Pt7RuNi2-O NSs catalyst also shows the highest performance at reported Pt-based catalysts for MOR in acidic medium.

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Supplementary files

Article information


Submitted
14 Jan 2020
Accepted
12 Jun 2020
First published
13 Jun 2020

Chem. Commun., 2020, Accepted Manuscript
Article type
Communication

High-efficiency Methanol Oxidation Electrocatalyst Realized by Ultrathin PtRuM-O (M = Ni, Fe, Co) Nanosheets

Y. Pan, H. Li, Z. Wang, Y. Han, Z. Wu, X. Zhang, J. Lai, L. Wang and S. Feng, Chem. Commun., 2020, Accepted Manuscript , DOI: 10.1039/D0CC00361A

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