Promotion of electrocatalytic hydrogen evolution reaction on nitrogen-doped carbon nanosheets with secondary heteroatoms

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dc.contributor.authorQu, K.
dc.contributor.authorZheng, Y.
dc.contributor.authorZhang, X.
dc.contributor.authorDavey, K.
dc.contributor.authorDai, S.
dc.contributor.authorQiao, S.
dc.date.issued2017
dc.description.abstractDual heteroatom-doped carbon materials are efficient electrocatalysts via a synergistic effect. With nitrogen as the primary dopant, boron, sulfur, and phosphorus can be used as secondary elements for co-doped carbons. However, evaluation and analysis of the promotional effect of B, P, and S to N-doped carbons has not been widely researched. Here we report a robust platform that is constructed through polydopamine to prepare N,B-, N,P-, and N,S-co-doped carbon nanosheets, characterized by similar N species content and efficient B, P, and S doping. Systematic investigation reveals S to have the greatest promotional effect in hydrogen evolution reactions (HER) followed by P and that B decreases the activity of N-doped carbons. Experimental and theoretical analyses show the secondary heteroatom promotional effect is impacted by the intrinsic structures and extrinsic surface areas of both materials, i.e., electronic structures exclusively determine the catalytic activity of active sites, while large surface areas optimize apparent HER performance.
dc.description.statementofresponsibilityKonggang Qu, Yao Zheng, Xianxi Zhang, Ken Davey, Sheng Dai and Shi Zhang Qiao
dc.identifier.citationACS Nano, 2017; 11(7):7293-7300
dc.identifier.doi10.1021/acsnano.7b03290
dc.identifier.issn1936-0851
dc.identifier.issn1936-086X
dc.identifier.orcidZheng, Y. [0000-0002-2411-8041]
dc.identifier.orcidDavey, K. [0000-0002-7623-9320]
dc.identifier.orcidQiao, S. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttp://hdl.handle.net/2440/106891
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.relation.granthttp://purl.org/au-research/grants/arc/DE160101163
dc.relation.granthttp://purl.org/au-research/grants/arc/DP140104062
dc.relation.granthttp://purl.org/au-research/grants/arc/DP160104866
dc.relation.granthttp://purl.org/au-research/grants/arc/DP170104464
dc.relation.granthttp://purl.org/au-research/grants/arc/LP160100927
dc.relation.grant21576202
dc.relation.grant21601078
dc.rights© 2017 American Chemical Society
dc.source.urihttps://doi.org/10.1021/acsnano.7b03290
dc.subjectdual-doped carbons
dc.subjectgraphene
dc.subjecthydrogen evolution reaction
dc.subjectpolydopamine
dc.subjectwater splitting
dc.titlePromotion of electrocatalytic hydrogen evolution reaction on nitrogen-doped carbon nanosheets with secondary heteroatoms
dc.typeJournal article
pubs.publication-statusPublished

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