Pt Single Atoms Supported on N-Doped Mesoporous Hollow Carbon Spheres with Enhanced Electrocatalytic H2 -Evolution Activity

© 2021 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 33(2021), 18 vom: 31. Mai, Seite e2008599
1. Verfasser: Kuang, Panyong (VerfasserIn)
Weitere Verfasser: Wang, Yaru, Zhu, Bicheng, Xia, Fanjie, Tung, Ching-Wei, Wu, Jinsong, Chen, Hao Ming, Yu, Jiaguo
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article N-doped mesoporous hollow carbon spheres Pt single atoms coordination structures electronic metal-support interactions hydrogen evolution reaction
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520 |a The electronic metal-support interaction (EMSI) plays a crucial role in catalysis as it can induce electron transfer between metal and support, modulate the electronic state of the supported metal, and optimize the reduction of intermediate species. In this work, the tailoring of electronic structure of Pt single atoms supported on N-doped mesoporous hollow carbon spheres (Pt1 /NMHCS) via strong EMSI engineering is reported. The Pt1 /NMHCS composite is much more active and stable than the nanoparticle (PtNP ) counterpart and commercial 20 wt% Pt/C for catalyzing the electrocatalytic hydrogen evolution reaction (HER), exhibiting a low overpotential of 40 mV at a current density of 10 mA cm-2 , a high mass activity of 2.07 A mg-1 Pt at 50 mV overpotential, a large turnover frequency of 20.18 s-1 at 300 mV overpotential, and outstanding durability in acidic electrolyte. Detailed spectroscopic characterizations and theoretical simulations reveal that the strong EMSI effect in a unique N1 -Pt1 -C2 coordination structure significantly tailors the electronic structure of Pt 5d states, resulting in promoted reduction of adsorbed proton, facilitated H-H coupling, and thus Pt-like HER activity. This work provides a constructive route for precisely designing single-Pt-atom-based robust electrocatalysts with high HER activity and durability 
650 4 |a Journal Article 
650 4 |a N-doped mesoporous hollow carbon spheres 
650 4 |a Pt single atoms 
650 4 |a coordination structures 
650 4 |a electronic metal-support interactions 
650 4 |a hydrogen evolution reaction 
700 1 |a Wang, Yaru  |e verfasserin  |4 aut 
700 1 |a Zhu, Bicheng  |e verfasserin  |4 aut 
700 1 |a Xia, Fanjie  |e verfasserin  |4 aut 
700 1 |a Tung, Ching-Wei  |e verfasserin  |4 aut 
700 1 |a Wu, Jinsong  |e verfasserin  |4 aut 
700 1 |a Chen, Hao Ming  |e verfasserin  |4 aut 
700 1 |a Yu, Jiaguo  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 33(2021), 18 vom: 31. Mai, Seite e2008599  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:33  |g year:2021  |g number:18  |g day:31  |g month:05  |g pages:e2008599 
856 4 0 |u http://dx.doi.org/10.1002/adma.202008599  |3 Volltext 
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