Engineering bunched Pt-Ni alloy nanocages for efficient oxygen reduction in practical fuel cells
Hainan University · Wuhan National Laboratory for Optoelectronics · +7 more institutions
Abstract
Development of efficient and robust electrocatalysts is critical for practical fuel cells. We report one-dimensional bunched platinum-nickel (Pt-Ni) alloy nanocages with a Pt-skin structure for the oxygen reduction reaction that display high mass activity (3.52 amperes per milligram platinum) and specific activity (5.16 milliamperes per square centimeter platinum), or nearly 17 and 14 times higher as compared with a commercial platinum on carbon (Pt/C) catalyst. The catalyst exhibits high stability with negligible activity decay after 50,000 cycles. Both the experimental results and theoretical calculations reveal the existence of fewer strongly bonded platinum-oxygen (Pt-O) sites induced by the strain and…
Citation impact
- FWCI
- 41.58
- Percentile
- 100%
- References
- 56
Authors
11- XTXinlong TianCorresponding
Hainan University, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- XZXiao ZhaoCorresponding
University of Electro-Communications
- YSYaqiong SuCorresponding
Eindhoven University of Technology
- LWLijuan Wang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- HWHongming Wang
Nanchang University
Topics & keywords
- Nanocages
- Platinum
- Catalysis
- Alloy
- Nickel
- Oxygen
- Oxygen reduction
- Materials science
Funding
- NRNational Research FoundationAward: NRF-NRFI2016-04
- NNNational Natural Science Foundation of ChinaAwards: 21802048, 21805104, 2017KFXKJC002
- MOMinistry of Economy, Trade and IndustryAwards: 2018B7800, 2019A7800
- NONederlandse Organisatie voor Wetenschappelijk Onderzoek
- HUHuazhong University of Science and TechnologyAward: 2017KFXKJC002
- HUHainan University
- FRFundamental Research Funds for the Central UniversitiesAwards: 2018KFYYXJJ121, 2017KFXKJC002, 2018KFYXKJC044