Iridium-based nanomaterials for electrochemical water splitting

Chen, Z; Duan, X; Wei, W; Wang, S; Ni, BJ

Iridium-based nanomaterials for electrochemical water splitting

Chen, Z

Duan, X Wei, W Wang, S Ni, BJ

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Nano Energy, 2020, 78, pp. 105270-105270
Issue Date:: 2020-12-01

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Field	Value	Language
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Duan, X
dc.contributor.author	Wei, W
dc.contributor.author	Wang, S
dc.contributor.author	Ni, BJ
dc.date.accessioned	2021-02-23T19:31:32Z
dc.date.available	2021-02-23T19:31:32Z
dc.date.issued	2020-12-01
dc.identifier.citation	Nano Energy, 2020, 78, pp. 105270-105270
dc.identifier.issn	2211-2855
dc.identifier.uri	http://hdl.handle.net/10453/146365
dc.description.abstract	© 2020 Elsevier Ltd Electrochemical water splitting is an appealing technology to produce high-purity hydrogen as a clean and sustainable energy carrier. The efficiency of water splitting largely depends on the intrinsic activity, selectivity, and stability of the electrocatalysts. Hence, soaring scientific endeavors have been made to develop high-performance electrocatalysts and uncover the underling reaction mechanisms. Iridium (Ir)-based nanomaterials are most promising for water splitting due to their favorable intrinsic activity, wide pH window, and high stability. In this review, we first discussed the mechanisms of various Ir-based catalysts in hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), including metal, alloys, and oxides. Important criteria and methods for precise evaluation of water splitting catalysts are discussed. Then, the applications of Ir-based nanomaterials in the HER, OER and the overall water splitting are comprehensively reviewed, with an emphasis on correlating the structure-function relationships and the advanced strategies for rational design of reaction-oriented Ir catalysts. Lastly, the current challenges in fundamental studies and future directions in this field are presented.
dc.language	en
dc.publisher	Elsevier BV
dc.relation	http://purl.org/au-research/grants/arc/FT160100195
dc.relation.ispartof	Nano Energy
dc.relation.isbasedon	10.1016/j.nanoen.2020.105270
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering, 1007 Nanotechnology
dc.title	Iridium-based nanomaterials for electrochemical water splitting
dc.type	Journal Article
utslib.citation.volume	78
utslib.for	090402 Catalytic Process Engineering
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0912 Materials Engineering
utslib.for	1007 Nanotechnology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
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
utslib.copyright.status	closed_access	*
dc.date.updated	2021-02-23T19:31:11Z
pubs.publication-status	Published
pubs.volume	78

Abstract:

© 2020 Elsevier Ltd Electrochemical water splitting is an appealing technology to produce high-purity hydrogen as a clean and sustainable energy carrier. The efficiency of water splitting largely depends on the intrinsic activity, selectivity, and stability of the electrocatalysts. Hence, soaring scientific endeavors have been made to develop high-performance electrocatalysts and uncover the underling reaction mechanisms. Iridium (Ir)-based nanomaterials are most promising for water splitting due to their favorable intrinsic activity, wide pH window, and high stability. In this review, we first discussed the mechanisms of various Ir-based catalysts in hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), including metal, alloys, and oxides. Important criteria and methods for precise evaluation of water splitting catalysts are discussed. Then, the applications of Ir-based nanomaterials in the HER, OER and the overall water splitting are comprehensively reviewed, with an emphasis on correlating the structure-function relationships and the advanced strategies for rational design of reaction-oriented Ir catalysts. Lastly, the current challenges in fundamental studies and future directions in this field are presented.

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http://hdl.handle.net/10453/146365