Precise tuning in platinum-nickel/nickel sulfide interface nanowires for synergistic hydrogen evolution catalysis

Pengtang Wang, Xu Zhang, Jin Zhang, Sheng Wan, Shaojun Guo (), Gang Lu (), Jianlin Yao and Xiaoqing Huang ()
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Pengtang Wang: College of Chemistry, Chemical Engineering and Materials Science, Soochow University
Xu Zhang: California State University
Jin Zhang: College of Chemistry, Chemical Engineering and Materials Science, Soochow University
Sheng Wan: College of Engineering, Peking University
Shaojun Guo: College of Engineering, Peking University
Gang Lu: California State University
Jianlin Yao: College of Chemistry, Chemical Engineering and Materials Science, Soochow University
Xiaoqing Huang: College of Chemistry, Chemical Engineering and Materials Science, Soochow University

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Comprising abundant interfaces, multicomponent heterostructures can integrate distinct building blocks into single entities and yield exceptional functionalities enabled by the synergistic components. Here we report an efficient approach to construct one-dimensional metal/sulfide heterostructures by directly sulfuring highly composition-segregated platinum-nickel nanowires. The heterostructures possess a high density of interfaces between platinum-nickel and nickel sulfide components, which cooperate synergistically towards alkaline hydrogen evolution reaction. The platinum-nickel/nickel sulfide heterostructures can deliver a current density of 37.2 mA cm−2 at an overpotential of 70 mV, which is 9.7 times higher than that of commercial Pt/C. The heterostructures also offer enhanced stability revealed by long-term chronopotentiometry measurements. The present work highlights a potentially powerful interface-engineering strategy for designing multicomponent heterostructures with advanced performance in hydrogen evolution reaction and beyond.

Date: 2017
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DOI: 10.1038/ncomms14580

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