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author：

Ahmad, M. (Ahmad, M..) [1] | Hussain, M.B. (Hussain, M.B..) [2] | Chen, J. (Chen, J..) [3] | Yang, Y. (Yang, Y..) [4] | Wu, X. (Wu, X..) [5] | Chen, H. (Chen, H..) [6] | Afzal, S. (Afzal, S..) [7] | Raza, W. (Raza, W..) [8] | Zeng, Z. (Zeng, Z..) [9] | Ye, F. (Ye, F..) [10] | Zhao, X. (Zhao, X..) [11] | Zhang, J. (Zhang, J..) [12] | Feng, R. (Feng, R..) [13] | Fu, X.-Z. (Fu, X.-Z..) [14] | Luo, J.-L. (Luo, J.-L..) [15]

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Scopus

Abstract：

Bottlenecks　in　direct　methanol　fuel　cells　(DMFCs)　with　conventional　noble　metals　as　anode　catalysts　involve　the　formation　of　valueless　byproducts　and　carbon　dioxide　(CO2)　emissions.　Carbon-supported　Pt　single　atoms　have　demonstrated　high　performance　in　DMFCs.　However,　the　adsorbed　intermediates　(COads)　strongly　bind　to　Pt　single-atom　sites,　resulting　in　complete　methanol　oxidation　to　CO2　and　low　power　densities.　Herein,　we　have　developed　a　DMFC　for　CO2-emission-free　coproduction　of　electricity　and　valuable　formate　using　metal　organic　framework　(MOF)-derived　N-doped　porous　carbon-supported　PtRu　single-atom　(referred　to　as　PtRuSA/NPC)　catalysts.　The　DMFC　produces　current　and　power　densities　of　657　mA　cm-2　and　97.4　mW　cm-2,　respectively,　at　a　potential　of　0.65　V　with　a　98.4%　Faraday　efficiency　for　formate　at　80　°C.　Density　functional　theory　(DFT)　calculations　show　that　CH3OH　molecules　preferentially　adsorb　onto　the　PtRu　single　atoms,　but　their　oxidation　to　CO2　molecules　on　PtRuSA/NPC　is　kinetically　unfavorable　due　to　the　large　energy　barrier.　This　study　offers　a　pathway　to　developing　high-performance　and　CO2-emission-free　electrocatalysts　for　DMFCs.　©　2024　American　Chemical　Society.

Keyword：

CO2-emission-free DMFCs electrocatalysts formate production PtRu single atoms

Community：

  • [ 1 ] [Ahmad M.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 2 ] [Ahmad M.]Institute of Carbon Neutrality, Zhejiang Wanli University, Ningbo, 315100, China
  • [ 3 ] [Hussain M.B.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 4 ] [Chen J.]School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528200, China
  • [ 5 ] [Yang Y.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 6 ] [Wu X.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 7 ] [Chen H.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 8 ] [Afzal S.]Department of Environmental Engineering, China Jiliang University, Zhejiang, Hangzhou, 310018, China
  • [ 9 ] [Raza W.]Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, China
  • [ 10 ] [Zeng Z.]College of Environmental Sciences, Sichuan Agricultural University, Chengdu, 625014, China
  • [ 11 ] [Ye F.]Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
  • [ 12 ] [Zhao X.]School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
  • [ 13 ] [Zhang J.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108, China
  • [ 14 ] [Zhang J.]Institute for Sustainable Energy, College of Sciences, Shanghai University, Shanghai, 200444, China
  • [ 15 ] [Feng R.]Canadian Light Source Inc., Saskatoon, S7N 0X4, SK, Canada
  • [ 16 ] [Fu X.-Z.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China
  • [ 17 ] [Luo J.-L.]Shenzhen Key Laboratory of Energy Electrocatalytic Materials, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518055, China

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Source ：

ACS Catalysis

ISSN： 2155-5435

Year： 2024

Issue： 12

Volume： 14

Page： 9134-9143

1 1 . 7 0 0

JCR@2023

CAS Journal Grade：1

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WoS CC Cited Count：

SCOPUS Cited Count： 3

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 2

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