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author:

Wang, Minghao (Wang, Minghao.) [1] | Jiang, Nannan (Jiang, Nannan.) [2] | Huang, Bing (Huang, Bing.) [3] | Jin, Huihui (Jin, Huihui.) [4] | Guan, Lunhui (Guan, Lunhui.) [5]

Indexed by:

EI Scopus SCIE

Abstract:

Enhanced ordered intermetallic compounds excel in catalyzing the oxygen reduction reaction (ORR). We introduce a novel synthesis strategy based on molecularly engineered to address challenges in high-temperature annealing. It involves the synthesis of carbon platforms with rich edge sites, which serve as effective anchoring points for nanoparticles. By utilizing sulfur anchoring, we synthesize ordered Pt-Co intermetallic with Pt-rich shells (o-PtCo@Pt) that exhibit remarkable ORR performance. Ordered arrangement of Pt-Co endows Pt-shell with compression stress and enhances the oxidation resistance of Pt/Co sites. O-PtCo@Pt exhibits high mass activity (MA, 0.53 A mgPt- 1) and specific activity (SA, 1.17 mA cm-2). It exhibits remarkable as cathodic catalyst in proton exchange membrane fuel cells. It achieves power density of 1.14 W cm-2 at 2.0 A cm-2, with MA of 0.50 A mgPt- 1 at 0.9 V. It maintains stability with only 8 % power density loss after 30,000 cycles, retaining MA of 0.35 A mgPt- 1.

Keyword:

ordered Pt alloy nanoparticles Oxygen reduction reaction Proton exchange membrane fuel cells S-Doped carbon

Community:

  • [ 1 ] [Wang, Minghao]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China
  • [ 2 ] [Jiang, Nannan]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China
  • [ 3 ] [Huang, Bing]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China
  • [ 4 ] [Jin, Huihui]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China
  • [ 5 ] [Guan, Lunhui]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China
  • [ 6 ] [Wang, Minghao]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China
  • [ 7 ] [Jiang, Nannan]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China
  • [ 8 ] [Huang, Bing]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China
  • [ 9 ] [Jin, Huihui]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China
  • [ 10 ] [Guan, Lunhui]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China
  • [ 11 ] [Jiang, Nannan]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 12 ] [Jin, Huihui]Fuzhou Univ, Coll Chem, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • [Guan, Lunhui]Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fujian Key Lab Nanomat, Fuzhou 350108, Peoples R China;;[Guan, Lunhui]Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350108, Peoples R China;;

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Source :

JOURNAL OF POWER SOURCES

ISSN: 0378-7753

Year: 2024

Volume: 613

8 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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