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Title: High-performance transition metal-doped Pt 3Ni octahedra for oxygen reduction reaction

Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt 3Ni octahedra supported on carbon with transition metals, termed M-Pt 3Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt 3Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm2 and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm 2 and 0.096 A/mg Pt). In conclusion, theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt3Ni catalyst.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3] ;  [3] ;  [4] ;  [4] ;  [5] ;  [6] ;  [7] ;  [1]
  1. Univ. of California, Los Angeles, CA (United States). Dept. of Materials Science and Engineering; Univ. of California, Los Angeles, CA (United States). California NanoSystems Inst. (CNSI)
  2. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Physics and Astronomy
  3. Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry
  4. Univ. of California, Berkeley, CA (United States). Dept. of Physics and Center of Integrated Nanomechanical Systems; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division; Univ. of California, Berkeley, CA (United States). Kavli Energy NanoSciences Inst.
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physical and Life Sciences Directorate
  6. Univ. of California, Los Angeles, CA (United States). California NanoSystems Inst. (CNSI); Univ. of California, Los Angeles, CA (United States). Dept. of Chemistry and Biochemistry
  7. Johns Hopkins Univ., Baltimore, MD (United States). Dept. of Materials Science and Engineering
Publication Date:
Report Number(s):
LLNL-JRNL-666719
Journal ID: ISSN 0036-8075
Grant/Contract Number:
AC52-07NA27344; AC02‐05CH11231; EEC‐083219
Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 348; Journal Issue: 6240; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Sloan Research Fellowship
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 29 ENERGY PLANNING, POLICY AND ECONOMY
OSTI Identifier:
1234589

Huang, Xiaoqing, Zhao, Zipeng, Cao, Liang, Chen, Yu, Zhu, Enbo, Lin, Zhaoyang, Li, Mufan, Yan, Aiming, Zettl, Alex, Wang, Y. Morris, Duan, Xiangfeng, Mueller, Tim, and Huang, Yu. High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction. United States: N. p., Web. doi:10.1126/science.aaa8765.
Huang, Xiaoqing, Zhao, Zipeng, Cao, Liang, Chen, Yu, Zhu, Enbo, Lin, Zhaoyang, Li, Mufan, Yan, Aiming, Zettl, Alex, Wang, Y. Morris, Duan, Xiangfeng, Mueller, Tim, & Huang, Yu. High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction. United States. doi:10.1126/science.aaa8765.
Huang, Xiaoqing, Zhao, Zipeng, Cao, Liang, Chen, Yu, Zhu, Enbo, Lin, Zhaoyang, Li, Mufan, Yan, Aiming, Zettl, Alex, Wang, Y. Morris, Duan, Xiangfeng, Mueller, Tim, and Huang, Yu. 2015. "High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction". United States. doi:10.1126/science.aaa8765. https://www.osti.gov/servlets/purl/1234589.
@article{osti_1234589,
title = {High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction},
author = {Huang, Xiaoqing and Zhao, Zipeng and Cao, Liang and Chen, Yu and Zhu, Enbo and Lin, Zhaoyang and Li, Mufan and Yan, Aiming and Zettl, Alex and Wang, Y. Morris and Duan, Xiangfeng and Mueller, Tim and Huang, Yu},
abstractNote = {Bimetallic platinum-nickel (Pt-Ni) nanostructures represent an emerging class of electrocatalysts for oxygen reduction reaction (ORR) in fuel cells, but practical applications have been limited by catalytic activity and durability. We surface-doped Pt3Ni octahedra supported on carbon with transition metals, termed M-Pt3Ni/C, where M is vanadium, chromium, manganese, iron, cobalt, molybdenum (Mo), tungsten, or rhenium. The Mo-Pt3Ni/C showed the best ORR performance, with a specific activity of 10.3 mA/cm2 and mass activity of 6.98 A/mgPt, which are 81- and 73-fold enhancements compared with the commercial Pt/C catalyst (0.127 mA/cm2 and 0.096 A/mgPt). In conclusion, theoretical calculations suggest that Mo prefers subsurface positions near the particle edges in vacuum and surface vertex/edge sites in oxidizing conditions, where it enhances both the performance and the stability of the Pt3Ni catalyst.},
doi = {10.1126/science.aaa8765},
journal = {Science},
number = 6240,
volume = 348,
place = {United States},
year = {2015},
month = {6}
}

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