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

Luka Pavko; Matija Gatalo; Gregor Križan; Janez Križan; Konrad Ehelebe; Francisco Ruiz-Zepeda; Martin Šala; Goran Dražić; Moritz Geuß; Pascal Kaiser; Marjan Bele; Mitja Kostelec; Tina Đukić; Nigel Van de Velde; Ivan Jerman; Serhiy Cherevko; Nejc Hodnik; Boštjan Genorio; Miran Gaberšček

doi:10.1021/acsaem.1c02570

journal article·2021-12-27Open access

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

Luka Pavko, Matija Gatalo, Gregor Križan, Janez Križan, Konrad Ehelebe, Francisco Ruiz-Zepeda, Martin Šala, Goran Dražić, Moritz Geuß, Pascal Kaiser, Marjan Bele, Mitja Kostelec, Tina Đukić, Nigel Van de Velde, Ivan Jerman, Serhiy Cherevko, Nejc Hodnik, Boštjan Genorio, Miran Gaberšček

ACS Applied Energy Materials· Volume 4· Issue 12

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Source abstract

Abstract

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.

Source: openalex_inverted_index · Quality: baseline

Research context

Metals & alloys Nanomaterials Composites Catalysis & surfaces Materials processing

OpenAlex topics: Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications · Fuel Cells and Related Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia

Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1001 Ljubljana, Slovenia

ReCatalyst d.o.o., Hajdrihova 19, 1001 Ljubljana, Slovenia

Ami d.o.o., Trstenjakova 5, 2250 Ptuj, Slovenia

Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstr.3, 91058 Erlangen, Germany

Department of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany

Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, 1001 Ljubljana, Slovenia

Funding

Javna Agencija za Raziskovalno Dejavnost RS · Bundesministerium f??r Wirtschaft und Energie · Heinrich B??ll Stiftung · H2020 European Research Council · NATO Science for Peace

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