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Gebru M, Subramanian P, Bělský P, Yadav RS, Pitussi I, Sasi S, Medlín R, Minar J, Švec P, Kornweitz H, Schechter A. Chemical-Dealloying-Derived PtPdPb-Based Multimetallic Nanoparticles: Dimethyl Ether Electrocatalysis and Fuel Cell Application. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 38032342 PMCID: PMC10726307 DOI: 10.1021/acsami.3c11003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023]
Abstract
In this work, we report a novel multimetallic nanoparticle catalyst composed of Pt, Pd, and Pb and its electrochemical activity toward dimethyl ether (DME) oxidation in liquid electrolyte and polymer electrolyte fuel cells. Chemical dealloying of the catalyst with the lowest platinum-group metal (PGM) content, Pt2PdPb2/C, was conducted using HNO3 to tune the catalyst activity. Comprehensive characterization of the chemical-dealloying-derived catalyst nanoparticles unambiguously showed that the acid treatment removed 50% Pb from the nanoparticles with an insignificant effect on the PGM metals and led to the formation of smaller-sized nanoparticles. Electrochemical studies showed that Pb dissolution led to structural changes in the original catalysts. Chemical-dealloying-derived catalyst nanoparticles made of multiple phases (Pt, Pt3Pb, PtPb) provided one of the highest PGM-normalized power densities of 118 mW mgPGM-1 in a single direct DME fuel cell operated at low anode catalyst loading (1 mgPGM cm-2) at 70 °C. A possible DME oxidation pathway for these multimetallic catalysts was proposed based on an online mass spectrometry study and the analysis of the reaction products.
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Affiliation(s)
| | - Palaniappan Subramanian
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
| | - Petr Bělský
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
| | | | - Itay Pitussi
- Department
of Chemical Science, Ariel University, 40700 Ariel, Israel
| | - Sarath Sasi
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
| | - Rostislav Medlín
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
| | - Jan Minar
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
| | - Peter Švec
- Institute
of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovak Republic
| | - Haya Kornweitz
- Department
of Chemical Science, Ariel University, 40700 Ariel, Israel
| | - Alex Schechter
- Department
of Chemical Science, Ariel University, 40700 Ariel, Israel
- Research
and Development Centre for Renewable Energy, New Technologies Research
Centre (NTC), University of West Bohemia, Univerzitni, 8/2732, 301 00 Pilsen, Czech Republic
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Rutkowska IA, Rytelewska B, Kulesza PJ. Enhancement of oxidation of dimethyl ether through formation of hybrid electrocatalysts composed of Vulcan-supported PtSn decorated with Ru-black or PtRu nanoparticles. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yang X, Xue J, Feng L. Pt nanoparticles anchored over Te nanorods as a novel and promising catalyst for methanol oxidation reaction. Chem Commun (Camb) 2019; 55:11247-11250. [DOI: 10.1039/c9cc06004a] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Pt/Te nanorods exhibited excellent catalytic performance for methanol oxidation in both acidic and alkaline electrolytes.
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Affiliation(s)
- Xudong Yang
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Jia Xue
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
| | - Ligang Feng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou 225002
- P. R. China
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