Activating Inert Surface Pt Single Atoms via Subsurface Doping for Oxygen Reduction Reaction.

Lai, W-H; Zhang, L; Yan, Z; Hua, W; Indris, S; Lei, Y; Liu, H; Wang, Y-X; Hu, Z; Liu, HK; Chou, S; Wang, G; Dou, SX

Activating Inert Surface Pt Single Atoms via Subsurface Doping for Oxygen Reduction Reaction.

Lai, W-H Zhang, L Yan, Z Hua, W Indris, S Lei, Y Liu, H Wang, Y-X Hu, Z Liu, HK Chou, S Wang, G

Dou, SX

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Publisher:: American Chemical Society (ACS)
Publication Type:: Journal Article
Citation:: Nano Lett, 2021, 21, (19), pp. 7970-7978
Issue Date:: 2021-10-13

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Field	Value	Language
dc.contributor.author	Lai, W-H
dc.contributor.author	Zhang, L
dc.contributor.author	Yan, Z
dc.contributor.author	Hua, W
dc.contributor.author	Indris, S
dc.contributor.author	Lei, Y
dc.contributor.author	Liu, H
dc.contributor.author	Wang, Y-X
dc.contributor.author	Hu, Z
dc.contributor.author	Liu, HK
dc.contributor.author	Chou, S
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.contributor.author	Dou, SX
dc.date.accessioned	2022-01-07T06:40:55Z
dc.date.available	2022-01-07T06:40:55Z
dc.date.issued	2021-10-13
dc.identifier.citation	Nano Lett, 2021, 21, (19), pp. 7970-7978
dc.identifier.issn	1530-6984
dc.identifier.issn	1530-6992
dc.identifier.uri	http://hdl.handle.net/10453/152822
dc.description.abstract	The performance of single-atom catalysts strongly depends on their particular coordination environments in the near-surface region. Herein, we discover that engineering extra Pt single atoms in the subsurface (Ptsubsurf) can significantly enhance the catalytic efficiency of surface Pt single atoms toward the oxygen reduction reaction (ORR). We experimentally and theoretically investigated the effects of the Ptsubsurf single atoms implanted in different positions of the subsurface of Co particles. The local environments and catalytic properties of surface Pt1 are highly tunable via Ptsubsurf doping. Specifically, the obtained Pt1@Co/NC catalyst displays a remarkable performance for ORR, achieving mass activity of 4.2 mA μgPt-1 (28 times higher than that of commercial Pt/C) at 0.9 V versus reversible hydrogen electrode (RHE) in 0.1 M HClO4 solution with high stability over 30000 cycles.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	American Chemical Society (ACS)
dc.relation.ispartof	Nano Lett
dc.relation.isbasedon	10.1021/acs.nanolett.1c02013
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Activating Inert Surface Pt Single Atoms via Subsurface Doping for Oxygen Reduction Reaction.
dc.type	Journal Article
utslib.citation.volume	21
utslib.location.activity	United States
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2022-01-07T06:40:51Z
pubs.issue	19
pubs.publication-status	Published
pubs.volume	21
utslib.citation.issue	19

Abstract:

The performance of single-atom catalysts strongly depends on their particular coordination environments in the near-surface region. Herein, we discover that engineering extra Pt single atoms in the subsurface (Ptsubsurf) can significantly enhance the catalytic efficiency of surface Pt single atoms toward the oxygen reduction reaction (ORR). We experimentally and theoretically investigated the effects of the Ptsubsurf single atoms implanted in different positions of the subsurface of Co particles. The local environments and catalytic properties of surface Pt1 are highly tunable via Ptsubsurf doping. Specifically, the obtained Pt1@Co/NC catalyst displays a remarkable performance for ORR, achieving mass activity of 4.2 mA μgPt-1 (28 times higher than that of commercial Pt/C) at 0.9 V versus reversible hydrogen electrode (RHE) in 0.1 M HClO4 solution with high stability over 30000 cycles.

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http://hdl.handle.net/10453/152822