Engineering bunched Pt-Ni alloy nanocages for efficient oxygen reduction in practical fuel cells

Author:

Tian Xinlong12ORCID,Zhao Xiao3ORCID,Su Ya-Qiong4ORCID,Wang Lijuan1,Wang Hongming5ORCID,Dang Dai6,Chi Bin7,Liu Hongfang1ORCID,Hensen Emiel J.M.4ORCID,Lou Xiong Wen (David)8ORCID,Xia Bao Yu1ORCID

Affiliation:

1. Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education), Hubei Key Laboratory of Material Chemistry and Service Failure, Wuhan National Laboratory for Optoelectronics, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, PR China.

2. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, PR China.

3. Innovation Research Center for Fuel Cells, The University of Electro-Communications, Chofugaoka, Chofu, Tokyo 182-8585, Japan.

4. Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands.

5. Institute for Advanced Study, Nanchang University, 999 Xuefu Road, Nanchang, PR China.

6. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, Guangdong 510006, PR China.

7. The Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, PR China.

8. School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.

Abstract

Nanocage-chain fuel cell catalysts The expense and scarcity of platinum has driven efforts to improve oxygen-reduction catalysts in proton-exchange membrane fuel cells. Tian et al. synthesized chains of platinum-nickel alloy nanospheres connected by necking regions. These structures can be etched to form nanocages with platinum-rich surfaces that are highly active for oxygen reduction. In fuel cells running on air and hydrogen, these catalysts operated for at least 180 hours. Science , this issue p. 850

Funder

National Natural Science Foundation of China

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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