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Polydopamine-inspired, dual heteroatom-doped carbon nanotubes for highly efficient overall water splitting

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dc.contributor.authorQu, K.
dc.contributor.authorZheng, Y.
dc.contributor.authorJiao, Y.
dc.contributor.authorZhang, X.
dc.contributor.authorDai, S.
dc.contributor.authorQiao, S.
dc.date.issued2017
dc.description.abstractOverall water splitting involved hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are critical for renewable energy conversion and storage. Heteroatom-doped carbon materials have been extensively employed as efficient electrocatalysts for independent HER or OER processes, while those as the bifunctional catalysts for simultaneously generating H2 and O2 by splitting water have been seldom reported. Inspired by the unparalleled virtues of polydopamine, the authors devise the facile synthesis of nitrogen and sulfur dual-doped carbon nanotubes with in situ, homogenous and high concentration sulfur doping. The newly developed dual-doped electrocatalysts display superb bifunctional catalytic activities for both HER and OER in alkaline solutions, outperforming all other reported carbon counterparts. Experimental characterizations confirm that the excellent performance is attributed to the multiple doping together with efficient mass and charge transfer, while theoretical computations reveal the promotion effect of secondary sulfur dopant to enhance the spin density of dual-doped samples and consequently to form highly electroactive sites for both HER and OER.
dc.description.statementofresponsibilityKonggang Qu, Yao Zheng, Yan Jiao, Xianxi Zhang, Sheng Da and Shi-Zhang Qiao
dc.identifier.citationAdvanced Energy Materials, 2017; 7(9):1602068-1-1602068-8
dc.identifier.doi10.1002/aenm.201602068
dc.identifier.issn1614-6832
dc.identifier.issn1614-6840
dc.identifier.orcidZheng, Y. [0000-0002-2411-8041]
dc.identifier.orcidJiao, Y. [0000-0003-1329-4290]
dc.identifier.orcidQiao, S. [0000-0002-1220-1761] [0000-0002-4568-8422]
dc.identifier.urihttp://hdl.handle.net/2440/104889
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/DP160104866
dc.relation.granthttp://purl.org/au-research/grants/arc/DP140104062
dc.relation.granthttp://purl.org/au-research/grants/arc/DP130104459
dc.relation.granthttp://purl.org/au-research/grants/arc/DE160101163
dc.relation.grant21601078
dc.relation.grant21503104
dc.relation.grant21576202
dc.relation.grantJ16LC03
dc.relation.grantJ16LC05
dc.rights© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
dc.source.urihttps://doi.org/10.1002/aenm.201602068
dc.titlePolydopamine-inspired, dual heteroatom-doped carbon nanotubes for highly efficient overall water splitting
dc.typeJournal article
pubs.publication-statusPublished

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