Toward the Continuous Production of Multigram Quantities of Highly Uniform Supported Metallic Nanoparticles and Their Application for Synthesis of Superior Intermetallic Pt-Alloy ORR Electrocatalysts
| Autor: | Ivan Jerman, Martin Šala, Mitja Kostelec, Nejc Hodnik, Francisco Ruiz-Zepeda, Matija Gatalo, Janez Križan, Serhiy Cherevko, Konrad Ehelebe, Marjan Bele, Goran Dražić, Luka Pavko, Gregor Križan, Bostjan Genorio, Moritz Geuß, Miran Gaberscek, Tina Đukić, Pascal Kaiser, Nigel Van de Velde |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Materials science
Alloy Intermetallic Energy Engineering and Power Technology Pulse combustion 02 engineering and technology engineering.material continuous 010402 general chemistry 7. Clean energy 01 natural sciences Article Continuous production Materials Chemistry Electrochemistry Chemical Engineering (miscellaneous) Electrical and Electronic Engineering gas-diffusion electrode (GDE) Metal nanoparticles galvanic displacement pulse combustion double passivation 021001 nanoscience & nanotechnology 0104 chemical sciences proton exchange membrane fuel cells (PEMFC) Chemical engineering ddc:540 engineering 0210 nano-technology oxygen reduction reaction (ORR) |
| Zdroj: | ACS Applied Energy Materials ACS applied energy materials 4(12), 13819–13829 (2021). doi:10.1021/acsaem.1c02570 |
| ISSN: | 2574-0962 |
| DOI: | 10.1021/acsaem.1c02570 |
| Popis: | A fast and facile pulse combustion (PC) method that allows for the continuous production of multigram quantities of high-metal-loaded and highly uniform supported metallic nanoparticles (SMNPs) is presented. Namely, various metal on carbon (M/C) composites have been prepared by using only three feedstock components: water, metal–salt, and the supporting material. The present approach can be elegantly utilized also for numerous other applications in electrocatalysis, heterogeneous catalysis, and sensors. In this study, the PC-prepared M/C composites were used as metal precursors for the Pt NPs deposition using double passivation with the galvanic displacement method (DP method). Lastly, by using thin-film rotating disc electrode (TF-RDE) and gas-diffusion electrode (GDE) methodologies, we show that the synergistic effects of combining PC technology with the DP method enable production of superior intermetallic Pt–M electrocatalysts with an improved oxygen reduction reaction (ORR) performance when compared to a commercial Pt–Co electrocatalyst for proton exchange membrane fuel cells (PEMFCs) application. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|