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author:

Li, Xi (Li, Xi.) [1] | Cai, Jiaofeng (Cai, Jiaofeng.) [2] | Wei, Changgeng (Wei, Changgeng.) [3] | Lin, Wei (Lin, Wei.) [4] (Scholars:林伟) | Li, Yi (Li, Yi.) [5] (Scholars:李毅) | Tang, Jing (Tang, Jing.) [6] (Scholars:汤儆)

Indexed by:

EI SCIE

Abstract:

Pt-based catalysts have limited usefulness in direct formic acid fuel cells (DFAFCs) due to their susceptibility to CO poisoning. Combining Pt with Fe atoms is an effective approach for suppressing Pt poisoning by CO. In this work, we fabricate novel carbon-supported FePt alloy nanoparticles (FePt@C) by pyrolyzing Pt nanoparticles encapsulated within mesoporous MIL-101(Fe) (Pt@MIL-101(Fe)). The resulting FePt nanoparticles (Fe3Pt (1 1 1)) possess a lower CO adsorption energy (0.64 eV) than the (1 1 1) surfaces of Pt, indicating that the FePt nanoparticles are far less susceptible to CO poisoning. The mass activity and current density of a 9.6 wt% FePt@C catalyst are 4.2 and 4.5 times, respectively, higher than those of a commercial Pt/C catalyst. Furthermore, the 9.6 wt% FePt@C catalyst exhibits excellent durability, with only a 0.1% loss of mass activity after 1000 cycles. These results should guide the development of improved anode catalysts for DFAFCs based on MOF precursors.

Keyword:

Electrocatalyst FePt intermetallic nanoparticles Formic acid oxidation reaction Metal-organic frameworks (MOF)

Community:

  • [ 1 ] [Li, Xi]Fuzhou Univ, Coll Chem, Minist Educ, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 2 ] [Cai, Jiaofeng]Fuzhou Univ, Coll Chem, Minist Educ, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 3 ] [Tang, Jing]Fuzhou Univ, Coll Chem, Minist Educ, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China
  • [ 4 ] [Wei, Changgeng]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350108, Peoples R China
  • [ 5 ] [Lin, Wei]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350108, Peoples R China
  • [ 6 ] [Li, Yi]Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350108, Peoples R China
  • [ 7 ] [Lin, Wei]Fujian Prov Key Lab Theoret & Computat Chem, Xiamen 361005, Fujian, Peoples R China
  • [ 8 ] [Li, Yi]Fujian Prov Key Lab Theoret & Computat Chem, Xiamen 361005, Fujian, Peoples R China
  • [ 9 ] [Tang, Jing]Fujian Prov Key Lab Electrochem Energy Storage Ma, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 汤儆

    [Tang, Jing]Fuzhou Univ, Coll Chem, Minist Educ, Key Lab Analyt Sci Food Safety & Biol, Fuzhou 350116, Peoples R China

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Source :

ELECTROCHEMISTRY COMMUNICATIONS

ISSN: 1388-2481

Year: 2021

Volume: 127

5 . 4 4 3

JCR@2021

4 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:117

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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