High-performance transition metal–doped Pt 3 Ni octahedra for oxygen reduction reaction
California NanoSystems Institute · University of California, Los Angeles · +5 more institutions
Abstract
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/cm(2) and mass activity of 6.98 A/mg(Pt), 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)). Theoretical calculations suggest that Mo prefers…
Citation impact
- FWCI
- 65.46
- Percentile
- 100%
- References
- 52
Authors
13- XHXiaoqing HuangCorresponding
California NanoSystems Institute, University of California, Los Angeles
- ZZZipeng ZhaoCorresponding
California NanoSystems Institute, University of California, Los Angeles
- LCLiang Cao
Johns Hopkins University
- YCYu Chen
California NanoSystems Institute, University of California, Los Angeles
- EZEnbo Zhu
California NanoSystems Institute, University of California, Los Angeles
Topics & keywords
- Catalysis
- Bimetallic strip
- Transition metal
- Vanadium
- Rhenium
- Materials science
- Oxidizing agent
- Cobalt
Funding
- NSNational Science FoundationAwards: 1352373, DE-AC02-05CH11231, DE-AC52-07NA27344, DMR-1352373, DMR-1437263
- UDU.S. Department of EnergyAwards: -AC02-05CH11231, 05CH11231, AC02-05CH11231, DE-AC02, DE-AC02-05CH11231, AC52-07NA27344, DE-AC02-
- OOOffice of Naval ResearchAwards: DE-AC02-05CH11231, N00014-15-1-2146, N00014-08-1-0985, N00014
- DODivision of Materials ResearchAward: 1352373
- BEBasic Energy SciencesAwards: DE-AC02, AC02-05CH11231, DE-AC02-05CH11231, DE-AC52-07NA27344, -AC02-05CH11231
- CNCalifornia NanoSystems Institute
- ARArmy Research OfficeAwards: DE-AC02-05CH11231, 54709-MS-PCS, DE-AC52-07NA27344
- LLLawrence Livermore National LaboratoryAwards: DE-AC52-07NA27344, DE-AC02-05CH11231, AC52-07NA27344
- LBLawrence Berkeley National LaboratoryAwards: DE-AC02-05CH11231, 05CH11231, AC02-05CH11231, DE-AC52-07NA27344