Fabrication of monodispersed B, N co-doped hierarchical porous carbon nanocages through confined etching to boost electrocatalytic oxygen reduction

Wang, X; Han, C; Li, H; Su, P; Ta, N; Ma, Y; Huang, Z; Liu, J

Fabrication of monodispersed B, N co-doped hierarchical porous carbon nanocages through confined etching to boost electrocatalytic oxygen reduction

Wang, X Han, C Li, H Su, P Ta, N Ma, Y Huang, Z

Liu, J

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Publisher:: Springer Science and Business Media LLC
Publication Type:: Journal Article
Citation:: Nano Research, 2022, pp. 1-9
Issue Date:: 2022-01-01

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Field	Value	Language
dc.contributor.author	Wang, X
dc.contributor.author	Han, C
dc.contributor.author	Li, H
dc.contributor.author	Su, P
dc.contributor.author	Ta, N
dc.contributor.author	Ma, Y
dc.contributor.author	Huang, Z https://orcid.org/0000-0003-1985-0884
dc.contributor.author	Liu, J
dc.date.accessioned	2023-01-18T12:29:34Z
dc.date.available	2023-01-18T12:29:34Z
dc.date.issued	2022-01-01
dc.identifier.citation	Nano Research, 2022, pp. 1-9
dc.identifier.issn	1998-0124
dc.identifier.issn	1998-0000
dc.identifier.uri	http://hdl.handle.net/10453/165150
dc.description.abstract	Dual heteroatom-doped carbons have attracted widespread research attention as catalysts in the field of energy storage and conversion due to their unique electronic structures and chemical tunability. In particular, boron and nitrogen co-doped carbon (B,N@C) has shown great potential for photo/electrocatalytic applications. However, more needs to be done for rational designing and regulating the structure of these materials to improve their catalytic performance. Herein, monodispersed hierarchical porous B,N@C nanocages were fabricated by pyrolyzing zeolite imidazole framework (ZIF) which was treated with ammonia borane or boric acid via an integrated double-solvent impregnation and nanocofined-etching method. The treated ZIF-8 provided an essential structural template to achieve B, N co-doped hierarchical structures with micro/meso/macro multimodal pore size distributions. The resultant B,N@C nanocages displayed high catalytic activities for electrochemical oxygen reduction reaction (ORR) in alkaline media, outperforming most carbon-based catalysts, particularly from the perspective of the half-wave potentials. Such high catalytic performance is due to the enhanced activity by the coexistence of B and N and the mass transfer promoted by the unique hierarchical porous structure. [Figure not available: see fulltext.].
dc.language	en
dc.publisher	Springer Science and Business Media LLC
dc.relation	http://purl.org/au-research/grants/arc/FT190100658
dc.relation.ispartof	Nano Research
dc.relation.isbasedon	10.1007/s12274-022-4786-4
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.rights	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The final authenticated version is available online at: http://doi.org/10.1007/s12274-022-4786-4
dc.subject.classification	Nanoscience & Nanotechnology
dc.title	Fabrication of monodispersed B, N co-doped hierarchical porous carbon nanocages through confined etching to boost electrocatalytic oxygen reduction
dc.type	Journal Article
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	open_access	*
utslib.copyright.embargo	2023-08-13T00:00:00+1000Z
dc.date.updated	2023-01-18T12:29:27Z
pubs.publication-status	Published

Abstract:

Dual heteroatom-doped carbons have attracted widespread research attention as catalysts in the field of energy storage and conversion due to their unique electronic structures and chemical tunability. In particular, boron and nitrogen co-doped carbon (B,N@C) has shown great potential for photo/electrocatalytic applications. However, more needs to be done for rational designing and regulating the structure of these materials to improve their catalytic performance. Herein, monodispersed hierarchical porous B,N@C nanocages were fabricated by pyrolyzing zeolite imidazole framework (ZIF) which was treated with ammonia borane or boric acid via an integrated double-solvent impregnation and nanocofined-etching method. The treated ZIF-8 provided an essential structural template to achieve B, N co-doped hierarchical structures with micro/meso/macro multimodal pore size distributions. The resultant B,N@C nanocages displayed high catalytic activities for electrochemical oxygen reduction reaction (ORR) in alkaline media, outperforming most carbon-based catalysts, particularly from the perspective of the half-wave potentials. Such high catalytic performance is due to the enhanced activity by the coexistence of B and N and the mass transfer promoted by the unique hierarchical porous structure. [Figure not available: see fulltext.].

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http://hdl.handle.net/10453/165150