A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC
A new and straightforward approach for the synthesis of ultrasmall and monodisperse Pt nanoparticles (NPs) and their controlled assembly on graphene based supports including reduced graphene oxide (rGO), commercial carbon black (VC) and rGO-VC hybrid were reported. These supported NPs were utilized...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-08-01
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| Series: | Materials & Design |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127518303113 |
| _version_ | 1818826732596101120 |
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| author | Melike Sevim Yılmaz Begüm Yarar Kaplan Önder Metin Selmiye Alkan Gürsel |
| author_facet | Melike Sevim Yılmaz Begüm Yarar Kaplan Önder Metin Selmiye Alkan Gürsel |
| author_sort | Melike Sevim Yılmaz |
| collection | DOAJ |
| description | A new and straightforward approach for the synthesis of ultrasmall and monodisperse Pt nanoparticles (NPs) and their controlled assembly on graphene based supports including reduced graphene oxide (rGO), commercial carbon black (VC) and rGO-VC hybrid were reported. These supported NPs were utilized as the electrocatalysts for polymer electrolyte membrane fuel cells (PEMFC). Surfactant-assisted reduction of platinum(II) acetylacetonate in hot organic solution yielded 1.2 nm Pt NPs. These ultrasmall Pt NPs were decorated on rGO, VC and the rGO-VC hybrid by using a simple liquid-phase self-assembly method. In the previous studies on Pt/rGO-VC hybrids, on one hand, Pt NPs were synthesized in situ on support, on the other hand, VC was added to synthesized Pt/rGO, and their fuel cell performance have been rarely shown. In our study, rGO and VC were directly mixed and prepared Pt NPs were assembled on rGO-VC hybrid support. Pt/rGO-VC hybrid electrocatalyst possessed substantially better electrocatalytic activity owing to better utilization of Pt compared to Pt/rGO and Pt/VC. Membrane electrode assemblies based on resultant catalysts were characterized in-situ in PEMFC. A superior PEMFC performance of 857 mW cm−2 (maximum power density) was achieved with the hybrid catalyst as compared to Pt NPs supported on rGO or VC. Keywords: Nanocatalyst, Platinum, Polymer electrolyte membrane fuel cell, Hybrid support, Reduced graphene oxide |
| first_indexed | 2024-12-19T00:32:20Z |
| format | Article |
| id | doaj.art-c1f36b9dd00e42189fc16425ddfddf55 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-19T00:32:20Z |
| publishDate | 2018-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-c1f36b9dd00e42189fc16425ddfddf552022-12-21T20:45:03ZengElsevierMaterials & Design0264-12752018-08-011512936A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFCMelike Sevim Yılmaz0Begüm Yarar Kaplan1Önder Metin2Selmiye Alkan Gürsel3Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, TurkeySabanci University, Nanotechnology Research and Application Center (SUNUM), 34956 Istanbul, TurkeyDepartment of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey; Corresponding author.Sabanci University, Faculty of Engineering & Natural Sciences, 34956 Istanbul, Turkey; Sabanci University, Nanotechnology Research and Application Center (SUNUM), 34956 Istanbul, Turkey; Correspondence to: S.A. Gürsel, Sabanci University, Faculty of Engineering & Natural Sciences, 34956 Istanbul, Turkey.A new and straightforward approach for the synthesis of ultrasmall and monodisperse Pt nanoparticles (NPs) and their controlled assembly on graphene based supports including reduced graphene oxide (rGO), commercial carbon black (VC) and rGO-VC hybrid were reported. These supported NPs were utilized as the electrocatalysts for polymer electrolyte membrane fuel cells (PEMFC). Surfactant-assisted reduction of platinum(II) acetylacetonate in hot organic solution yielded 1.2 nm Pt NPs. These ultrasmall Pt NPs were decorated on rGO, VC and the rGO-VC hybrid by using a simple liquid-phase self-assembly method. In the previous studies on Pt/rGO-VC hybrids, on one hand, Pt NPs were synthesized in situ on support, on the other hand, VC was added to synthesized Pt/rGO, and their fuel cell performance have been rarely shown. In our study, rGO and VC were directly mixed and prepared Pt NPs were assembled on rGO-VC hybrid support. Pt/rGO-VC hybrid electrocatalyst possessed substantially better electrocatalytic activity owing to better utilization of Pt compared to Pt/rGO and Pt/VC. Membrane electrode assemblies based on resultant catalysts were characterized in-situ in PEMFC. A superior PEMFC performance of 857 mW cm−2 (maximum power density) was achieved with the hybrid catalyst as compared to Pt NPs supported on rGO or VC. Keywords: Nanocatalyst, Platinum, Polymer electrolyte membrane fuel cell, Hybrid support, Reduced graphene oxidehttp://www.sciencedirect.com/science/article/pii/S0264127518303113 |
| spellingShingle | Melike Sevim Yılmaz Begüm Yarar Kaplan Önder Metin Selmiye Alkan Gürsel A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC Materials & Design |
| title | A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC |
| title_full | A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC |
| title_fullStr | A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC |
| title_full_unstemmed | A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC |
| title_short | A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC |
| title_sort | facile synthesis and assembly of ultrasmall pt nanoparticles on reduced graphene oxide carbon black hybrid for enhanced performance in pemfc |
| url | http://www.sciencedirect.com/science/article/pii/S0264127518303113 |
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