CoFeNi based trifunctional electrocatalysts featuring in-situ formed heterostructure

Han, C; Li, W; Li, W; Yang, L; Huang, Z

CoFeNi based trifunctional electrocatalysts featuring in-situ formed heterostructure

Han, C Li, W Li, W Yang, L Huang, Z

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Inorganic Chemistry Communications, 2023, 149, pp. 110402
Issue Date:: 2023-03-01

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Field	Value	Language
dc.contributor.author	Han, C
dc.contributor.author	Li, W
dc.contributor.author	Li, W
dc.contributor.author	Yang, L
dc.contributor.author	Huang, Z https://orcid.org/0000-0003-1985-0884
dc.date.accessioned	2023-02-19T19:39:35Z
dc.date.available	2023-02-19T19:39:35Z
dc.date.issued	2023-03-01
dc.identifier.citation	Inorganic Chemistry Communications, 2023, 149, pp. 110402
dc.identifier.issn	1387-7003
dc.identifier.uri	http://hdl.handle.net/10453/166250
dc.description.abstract	All-in-one transition metal-based electrocatalysts with high activities towards different reactions in aqueous electrolytes are of critical importance as they can dramatically bring down the cost of relevant energy devices. Herein a facile and low-cost synthesis of CoFeNi nanoparticles encapsulated by an N-doped carbon layer has been developed by pyrolyzing Prussian blue (PB) precursors. The obtained catalyst features tri-catalytic activity towards OER, ORR, and HER reactions in alkaline and acidic condition, and show great potential as a catalyst for water splitting and anode material for Zinc-Air batteries. Moreover, compared with the single phase, the sample with the heterostructure composed of both fcc and bcc phases exhibited dramatic enhancement in multi-catalytic activity. The heterostructure originates from an in-situ phase separation induced by composition variation. This demonstrates the effectiveness of heterostructure engineering introduced by in-situ phase separation in boosting the multi-catalytic activity.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/FT190100658
dc.relation.ispartof	Inorganic Chemistry Communications
dc.relation.isbasedon	10.1016/j.inoche.2023.110402
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0302 Inorganic Chemistry, 0399 Other Chemical Sciences
dc.subject.classification	Inorganic & Nuclear Chemistry
dc.title	CoFeNi based trifunctional electrocatalysts featuring in-situ formed heterostructure
dc.type	Journal Article
utslib.citation.volume	149
utslib.for	0302 Inorganic Chemistry
utslib.for	0399 Other Chemical Sciences
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	embargoed	*
utslib.copyright.embargo	2025-03-01T00:00:00+1000Z
dc.date.updated	2023-02-19T19:39:33Z
pubs.publication-status	Accepted
pubs.volume	149

Abstract:

All-in-one transition metal-based electrocatalysts with high activities towards different reactions in aqueous electrolytes are of critical importance as they can dramatically bring down the cost of relevant energy devices. Herein a facile and low-cost synthesis of CoFeNi nanoparticles encapsulated by an N-doped carbon layer has been developed by pyrolyzing Prussian blue (PB) precursors. The obtained catalyst features tri-catalytic activity towards OER, ORR, and HER reactions in alkaline and acidic condition, and show great potential as a catalyst for water splitting and anode material for Zinc-Air batteries. Moreover, compared with the single phase, the sample with the heterostructure composed of both fcc and bcc phases exhibited dramatic enhancement in multi-catalytic activity. The heterostructure originates from an in-situ phase separation induced by composition variation. This demonstrates the effectiveness of heterostructure engineering introduced by in-situ phase separation in boosting the multi-catalytic activity.

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http://hdl.handle.net/10453/166250