Constructing Ru-P/O-transition metal bridge enabling high-performance oxygen evolution reaction

Pan, F; Gong, C; Sun, Y; Wu, Z; Li, D; Wu, J; Cao, X; Xu, Y; Li, X; Gao, H; Zhang, J; Zhao, Y; Liu, H

Constructing Ru-P/O-transition metal bridge enabling high-performance oxygen evolution reaction

Pan, F Gong, C Sun, Y Wu, Z Li, D Wu, J Cao, X Xu, Y Li, X Gao, H Zhang, J

Zhao, Y

Liu, H

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Energy Chemistry, 2025, 107, pp. 872-880
Issue Date:: 2025-08-01

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Field	Value	Language
dc.contributor.author	Pan, F
dc.contributor.author	Gong, C
dc.contributor.author	Sun, Y
dc.contributor.author	Wu, Z
dc.contributor.author	Li, D
dc.contributor.author	Wu, J
dc.contributor.author	Cao, X
dc.contributor.author	Xu, Y
dc.contributor.author	Li, X
dc.contributor.author	Gao, H
dc.contributor.author	Zhang, J https://orcid.org/0000-0001-5476-0134
dc.contributor.author	Zhao, Y https://orcid.org/0000-0002-8653-8666
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.date.accessioned	2025-10-15T03:55:25Z
dc.date.available	2025-10-15T03:55:25Z
dc.date.issued	2025-08-01
dc.identifier.citation	Journal of Energy Chemistry, 2025, 107, pp. 872-880
dc.identifier.issn	2095-4956
dc.identifier.uri	http://hdl.handle.net/10453/190422
dc.description.abstract	Incorporating low-concentration precious metals into transition metal phosphides (TMPs) may represent a promising strategy to achieve improved catalytic performance of oxygen evolution reaction (OER). We design RuP<inf>4</inf> clusters immobilized on porous NiFeP nanosheets with Ru-P/O-TM bridge (RuP-NiFeP) for effective OER. The Ru-P/O-Ni/Fe bridges formed between the RuP<inf>4</inf> clusters and the NiFeP facilitate electron transfer between oxyphilic Ru atoms and Ni/Fe atoms, enabling Ru to achieve optimized reactant/intermediate adsorption. Advanced characterizations and theoretical calculations reveal that the incorporation of Ru species leads to the upshift of d band center and the formation of more disordered γ-NiOOH. The Ru-based clusters and the achieved disordered γ-NiOOH may deliver synergistic effect to further enhance the OER capability of RuP-NiFeP. Moreover, the presence of Ru species shifts the OER mechanism from the absorbate evolution mechanism (AEM) pathway (NiFeP) to the lattice oxygen mechanism (LOM) pathway, with OH deprotonation (OH → *O) as the rate-determining step (RDS). The RuP-NiFeP catalyst exhibits remarkable alkaline OER activity, requiring only an overpotential of 225 mV to achieve a current density of 100 mA cm<sup>−2</sup>, and retains its performance with a minimal current density decay of 1.9% after stability test. This work offers valuable insights into the design of cost-effective and highly efficient electrocatalysts for alkaline OER.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DE240100868
dc.relation.ispartof	Journal of Energy Chemistry
dc.relation.isbasedon	10.1016/j.jechem.2025.05.021
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Constructing Ru-P/O-transition metal bridge enabling high-performance oxygen evolution reaction
dc.type	Journal Article
utslib.citation.volume	107
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Clean Energy Technology (CCET)
pubs.organisational-group	University of Technology Sydney/UTS Groups/Chancellor's Research Fellows
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-10-15T03:55:21Z
pubs.publication-status	Published
pubs.volume	107

Abstract:

Incorporating low-concentration precious metals into transition metal phosphides (TMPs) may represent a promising strategy to achieve improved catalytic performance of oxygen evolution reaction (OER). We design RuP4 clusters immobilized on porous NiFeP nanosheets with Ru-P/O-TM bridge (RuP-NiFeP) for effective OER. The Ru-P/O-Ni/Fe bridges formed between the RuP4 clusters and the NiFeP facilitate electron transfer between oxyphilic Ru atoms and Ni/Fe atoms, enabling Ru to achieve optimized reactant/intermediate adsorption. Advanced characterizations and theoretical calculations reveal that the incorporation of Ru species leads to the upshift of d band center and the formation of more disordered γ-NiOOH. The Ru-based clusters and the achieved disordered γ-NiOOH may deliver synergistic effect to further enhance the OER capability of RuP-NiFeP. Moreover, the presence of Ru species shifts the OER mechanism from the absorbate evolution mechanism (AEM) pathway (NiFeP) to the lattice oxygen mechanism (LOM) pathway, with *OH deprotonation (*OH → *O) as the rate-determining step (RDS). The RuP-NiFeP catalyst exhibits remarkable alkaline OER activity, requiring only an overpotential of 225 mV to achieve a current density of 100 mA cm⁻², and retains its performance with a minimal current density decay of 1.9% after stability test. This work offers valuable insights into the design of cost-effective and highly efficient electrocatalysts for alkaline OER.

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http://hdl.handle.net/10453/190422