The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts
In this study, we present the facile formation of platinum nanoparticles (Pt-NPs) on reduced graphite oxide (rGO) (Pt-NP@rGO) by microwave-induced heating of the organometallic precursor ((MeCp)PtMe<sub>3</sub> in different tunable aryl alkyl ionic liquids (TAAIL). In the absence of rGO,...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/3/1018 |
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| author | Dennis Woitassek Swantje Lerch Wulv Jiang Meital Shviro Stefan Roitsch Thomas Strassner Christoph Janiak |
| author_facet | Dennis Woitassek Swantje Lerch Wulv Jiang Meital Shviro Stefan Roitsch Thomas Strassner Christoph Janiak |
| author_sort | Dennis Woitassek |
| collection | DOAJ |
| description | In this study, we present the facile formation of platinum nanoparticles (Pt-NPs) on reduced graphite oxide (rGO) (Pt-NP@rGO) by microwave-induced heating of the organometallic precursor ((MeCp)PtMe<sub>3</sub> in different tunable aryl alkyl ionic liquids (TAAIL). In the absence of rGO, transmission electron microscopy (TEM) reveals the formation of dense aggregates of Pt-NPs, with primary particle sizes of 2 to 6 nm. In contrast, in the Pt-NP@rGO samples, Pt-NPs are homogeneously distributed on the rGO, without any aggregation. Pt-NP@rGO samples are used as electrode materials for oxygen reduction reaction (ORR), which was assessed by cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The electrochemical surface area (ECSA) and mass-specific activity (MA) increase up to twofold, compared with standard Pt/C 60%, making Pt-NP@rGO a competitive material for ORR. |
| first_indexed | 2024-03-09T23:27:45Z |
| format | Article |
| id | doaj.art-dea8043b657348d4aca0bbf9b0b51bf3 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T23:27:45Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-dea8043b657348d4aca0bbf9b0b51bf32023-11-23T17:16:15ZengMDPI AGMolecules1420-30492022-02-01273101810.3390/molecules27031018The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR CatalystsDennis Woitassek0Swantje Lerch1Wulv Jiang2Meital Shviro3Stefan Roitsch4Thomas Strassner5Christoph Janiak6Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, GermanyPhysikalische Organische Chemie, Technische Universität Dresden, 01062 Dresden, GermanyForschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, 52425 Jülich, GermanyForschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-14: Electrochemical Process Engineering, 52425 Jülich, GermanyInstitut für Physikalische Chemie, Universität zu Köln, 50939 Köln, GermanyPhysikalische Organische Chemie, Technische Universität Dresden, 01062 Dresden, GermanyInstitut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, GermanyIn this study, we present the facile formation of platinum nanoparticles (Pt-NPs) on reduced graphite oxide (rGO) (Pt-NP@rGO) by microwave-induced heating of the organometallic precursor ((MeCp)PtMe<sub>3</sub> in different tunable aryl alkyl ionic liquids (TAAIL). In the absence of rGO, transmission electron microscopy (TEM) reveals the formation of dense aggregates of Pt-NPs, with primary particle sizes of 2 to 6 nm. In contrast, in the Pt-NP@rGO samples, Pt-NPs are homogeneously distributed on the rGO, without any aggregation. Pt-NP@rGO samples are used as electrode materials for oxygen reduction reaction (ORR), which was assessed by cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The electrochemical surface area (ECSA) and mass-specific activity (MA) increase up to twofold, compared with standard Pt/C 60%, making Pt-NP@rGO a competitive material for ORR.https://www.mdpi.com/1420-3049/27/3/1018platinumnanoparticleselectrochemistryoxygen reduction reactionreduced graphite oxidemicrowave |
| spellingShingle | Dennis Woitassek Swantje Lerch Wulv Jiang Meital Shviro Stefan Roitsch Thomas Strassner Christoph Janiak The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts Molecules platinum nanoparticles electrochemistry oxygen reduction reaction reduced graphite oxide microwave |
| title | The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts |
| title_full | The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts |
| title_fullStr | The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts |
| title_full_unstemmed | The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts |
| title_short | The Facile Deposition of Pt Nanoparticles on Reduced Graphite Oxide in Tunable Aryl Alkyl Ionic Liquids for ORR Catalysts |
| title_sort | facile deposition of pt nanoparticles on reduced graphite oxide in tunable aryl alkyl ionic liquids for orr catalysts |
| topic | platinum nanoparticles electrochemistry oxygen reduction reaction reduced graphite oxide microwave |
| url | https://www.mdpi.com/1420-3049/27/3/1018 |
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