Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162773
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dc.contributor.authorGong, Junen_US
dc.contributor.authorZhang, Zheyeen_US
dc.contributor.authorXi, Shiboen_US
dc.contributor.authorWang, Wenjunen_US
dc.contributor.authorLu, Jianmeien_US
dc.contributor.authorChen, Pengen_US
dc.date.accessioned2022-11-08T08:24:03Z-
dc.date.available2022-11-08T08:24:03Z-
dc.date.issued2023-
dc.identifier.citationGong, J., Zhang, Z., Xi, S., Wang, W., Lu, J. & Chen, P. (2023). Graphene quantum dot enabled interlayer spacing and electronic structure regulation of single-atom doped MoS₂ for efficient alkaline hydrogen evolution. Chemical Engineering Journal, 451, 138951-. https://dx.doi.org/10.1016/j.cej.2022.138951en_US
dc.identifier.issn1385-8947en_US
dc.identifier.urihttps://hdl.handle.net/10356/162773-
dc.description.abstractInterlayer engineering of two-dimensional (2D) materials is believed to be a key to enhance their performance for catalysis and other applications. Herein, molybdenum disulfide intercalated with heteroatom-doped graphene quantum dots and individually dispersed Co atoms (GQD/Co-MoS2) is readily synthesized by a one-pot hydrothermal reaction. With better long-term stability, GQD/Co-MoS2 shows comparable catalytic performance as commercial Pt/C catalyst for hydrogen evolution reaction in alkaline medium at low current densities (overpotential of 53 vs 44 mV at 10 mA cm−2) and outperforms Pt/C at high current densities (106 vs 172 mV at 100 mA cm−2). Based on both experimental and theoretical investigations, the outstanding performance is mainly attributed to the enlarged interlayer spacing and electronic coupling at the 0D/2D van der Waals heterojunctions between GQDs and Co-doped MoS2. In principle, a variety of GQD intercalated 2D materials with atomic doping of one or more metallic elements can be similarly synthesized for diverse applications.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.language.isoenen_US
dc.relationAMEIRG18-0016en_US
dc.relation.ispartofChemical Engineering Journalen_US
dc.rights© 2022 Elsevier B.V. All rights reserved. This paper was published in Chemical Engineering Journal and is made available with permission of Elsevier B.V.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleGraphene quantum dot enabled interlayer spacing and electronic structure regulation of single-atom doped MoS₂ for efficient alkaline hydrogen evolutionen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.identifier.doi10.1016/j.cej.2022.138951-
dc.description.versionSubmitted/Accepted versionen_US
dc.identifier.scopus2-s2.0-85137307778-
dc.identifier.volume451en_US
dc.identifier.spage138951en_US
dc.subject.keywordsInterlayer Engineeringen_US
dc.subject.keywordsGraphene Quantum Dotsen_US
dc.description.acknowledgementThis work was supported by an AME-IRG grant (AMEIRG18-0016) from Agency for Science, Technology and Research (A*STAR) of Singapore and the Basic Research Project of leading Technology in Jiangsu Province (BK20202012).en_US
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