Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments

Handle URI:
http://hdl.handle.net/10754/623871
Title:
Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments
Authors:
Wang, Hong; Min, Shixiong; Wang, Qiang; Li, Debao; Casillas, Gilberto; Ma, Chun; Li, Yangyang ( 0000-0003-4469-0659 ) ; Liu, Zhixiong; Li, Lain-Jong ( 0000-0002-4059-7783 ) ; Yuan, Jiayin; Antonietti, Markus; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
Self-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Wang H, Min S, Wang Q, Li D, Casillas G, et al. (2017) Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments. ACS Nano 11: 4358–4364. Available: http://dx.doi.org/10.1021/acsnano.7b01946.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Nano
Issue Date:
31-Mar-2017
DOI:
10.1021/acsnano.7b01946
Type:
Article
ISSN:
1936-0851; 1936-086X
Sponsors:
H.W. and T.W. thank the King Abdullah University of Science and Technology (KAUST) for financial support. S.M. acknowledges the financial support from the National Natural Science Foundation of China (21463001). J.Y. is grateful for financial support from the Max Planck Society, Germany, Clarkson University, USA, and the ERC (European Research Council) Starting Grant (Project Number 639720-NAPOLI).
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsnano.7b01946
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Hongen
dc.contributor.authorMin, Shixiongen
dc.contributor.authorWang, Qiangen
dc.contributor.authorLi, Debaoen
dc.contributor.authorCasillas, Gilbertoen
dc.contributor.authorMa, Chunen
dc.contributor.authorLi, Yangyangen
dc.contributor.authorLiu, Zhixiongen
dc.contributor.authorLi, Lain-Jongen
dc.contributor.authorYuan, Jiayinen
dc.contributor.authorAntonietti, Markusen
dc.contributor.authorWu, Taoen
dc.date.accessioned2017-05-31T11:23:10Z-
dc.date.available2017-05-31T11:23:10Z-
dc.date.issued2017-03-31en
dc.identifier.citationWang H, Min S, Wang Q, Li D, Casillas G, et al. (2017) Nitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environments. ACS Nano 11: 4358–4364. Available: http://dx.doi.org/10.1021/acsnano.7b01946.en
dc.identifier.issn1936-0851en
dc.identifier.issn1936-086Xen
dc.identifier.doi10.1021/acsnano.7b01946en
dc.identifier.urihttp://hdl.handle.net/10754/623871-
dc.description.abstractSelf-supported electrocatalysts being generated and employed directly as electrodes for energy conversion has been intensively pursued in the fields of materials chemistry and energy. Herein, we report a synthetic strategy to prepare freestanding hierarchically structured, nitrogen-doped nanoporous graphitic carbon membranes functionalized with Janus-type Co/CoP nanocrystals (termed as HNDCM-Co/CoP), which were successfully applied as a highly efficient, binder-free electrode in the hydrogen evolution reaction (HER). Benefited from multiple structural merits, such as a high degree of graphitization, three-dimensionally interconnected micro/meso/macropores, uniform nitrogen doping, well-dispersed Co/CoP nanocrystals, as well as the confinement effect of the thin carbon layer on the nanocrystals, HNDCM-Co/CoP exhibited superior electrocatalytic activity and long-term operation stability for HER under both acidic and alkaline conditions. As a proof-of-concept of practical usage, a 5.6 cm × 4 cm × 60 μm macroscopic piece of HNDCM-Co/CoP was prepared in our laboratory. Driven by a solar cell, electroreduction of water in alkaline conditions (pH 14) was performed, and H was produced at a rate of 16 mL/min, demonstrating its potential as real-life energy conversion systems.en
dc.description.sponsorshipH.W. and T.W. thank the King Abdullah University of Science and Technology (KAUST) for financial support. S.M. acknowledges the financial support from the National Natural Science Foundation of China (21463001). J.Y. is grateful for financial support from the Max Planck Society, Germany, Clarkson University, USA, and the ERC (European Research Council) Starting Grant (Project Number 639720-NAPOLI).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsnano.7b01946en
dc.subjectcarbon membraneen
dc.subjectelectrocatalysten
dc.subjecthierarchical architectureen
dc.subjectN-dopingen
dc.subjectwater splittingen
dc.titleNitrogen-Doped Nanoporous Carbon Membranes with Co/CoP Janus-Type Nanocrystals as Hydrogen Evolution Electrode in Both Acidic and Alkaline Environmentsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Nanoen
dc.contributor.institutionSchool of Chemistry and Chemical Engineering, Beifang University of Nationalities, Yinchuan, Ningxia, 750011, , Chinaen
dc.contributor.institutionState Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, , , Chinaen
dc.contributor.institutionUOW Electron Microscopy Centre, University of Wollongong, Wollongong, NSW, 2500, , Australiaen
dc.contributor.institutionDepartment of Colloidal Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam, 14476, , Germanyen
dc.contributor.institutionDepartment of Chemistry and Biomolecular Science, Center for Advanced Materials Processing, Clarkson University, Potsdam, NY, 13699, , United Statesen
kaust.authorWang, Hongen
kaust.authorMa, Chunen
kaust.authorLi, Yangyangen
kaust.authorLiu, Zhixiongen
kaust.authorLi, Lain-Jongen
kaust.authorWu, Taoen
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