Polyvinylpyrrolidone‐Coordinated Single‐Site Platinum Catalyst Exhibits High Activity for Hydrogen Evolution Reaction
Abstract: The essence of developing a Pt‐based single‐atom catalyst (SAC) for hydrogen evolution reaction (HER) is the preparation of well‐defined and stable single Pt sites with desired electrocatalytic efficacy. Herein, we report a facile approach to generate uniformly dispersed Pt sites with outstanding HER performance via a photochemical reduction method using polyvinylpyrrolidone (PVP) molecules as the key additive to significantly simplify the synthesis and enhance the catalytic performance. The as‐prepared catalyst displays remarkable kinetic activities (20 times higher current density than the commercially available Pt/C) with excellent stability (76.3 % of its initial activity after 5000 cycles) for HER. EXAFS measurements and DFT calculations demonstrate a synergetic effect, where the PVP ligands and the support together modulate the electronic structure of the Pt atoms, which optimize the hydrogen adsorption energy, resulting in a considerably improved HER activity.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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Polyvinylpyrrolidone‐Coordinated Single‐Site Platinum Catalyst Exhibits High Activity for Hydrogen Evolution Reaction ; volume:132 ; number:37 ; year:2020 ; pages:16036-16041 ; extent:6
Angewandte Chemie ; 132, Heft 37 (2020), 16036-16041 (gesamt 6)
- Urheber
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Li, Can
Chen, Zheng
Yi, Hong
Cao, Yi
Du, Lei
Hu, Yidong
Kong, Fanpeng
Campen, R. Kramer
Gao, Yunzhi
Du, Chunyu
Yin, Geping
Zhang, Igor Ying
Tong, Yujin
- DOI
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10.1002/ange.202005282
- URN
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urn:nbn:de:101:1-2022052911540467632199
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:34 MESZ
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Beteiligte
- Li, Can
- Chen, Zheng
- Yi, Hong
- Cao, Yi
- Du, Lei
- Hu, Yidong
- Kong, Fanpeng
- Campen, R. Kramer
- Gao, Yunzhi
- Du, Chunyu
- Yin, Geping
- Zhang, Igor Ying
- Tong, Yujin
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