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dc.contributor.authorZhang, Zhichengen_US
dc.contributor.authorLiu, Guigaoen_US
dc.contributor.authorCui, Xiaoyaen_US
dc.contributor.authorGong, Yueen_US
dc.contributor.authorYi, Dingen_US
dc.contributor.authorZhang, Qinghuaen_US
dc.contributor.authorZhu, Chongzhien_US
dc.contributor.authorSaleem, Faisalen_US
dc.contributor.authorChen, Boen_US
dc.contributor.authorLai, Zhuangchaien_US
dc.contributor.authorYun, Qinbaien_US
dc.contributor.authorCheng, Hongfeien_US
dc.contributor.authorHuang, Zhiqien_US
dc.contributor.authorPeng, Yongwuen_US
dc.contributor.authorFan, Zhanxien_US
dc.contributor.authorLi, Bingen_US
dc.contributor.authorDai, Wenruien_US
dc.contributor.authorChen, Weien_US
dc.contributor.authorDu, Yonghuaen_US
dc.contributor.authorMa, Luen_US
dc.contributor.authorSun, Cheng-Junen_US
dc.contributor.authorHwang, Inhuien_US
dc.contributor.authorChen, Shuangmingen_US
dc.contributor.authorSong, Lien_US
dc.contributor.authorDing, Fengen_US
dc.contributor.authorGu, Linen_US
dc.contributor.authorZhu, Yihanen_US
dc.contributor.authorZhang, Huaen_US
dc.identifier.citationZhang, Z., Liu, G., Cui, X., Gong, Y., Yi, D., Zhang, Q., Zhu, C., Saleem, F., Chen, B., Lai, Z., Yun, Q., Cheng, H., Huang, Z., Peng, Y., Fan, Z., Li, B., Dai, W., Chen, W., Du, Y., ...Zhang, H. (2021). Evoking ordered vacancies in metallic nanostructures toward a vacated Barlow packing for high-performance hydrogen evolution. Science Advances, 7(13), eabd6647-.
dc.description.abstractMetallic nanostructures are commonly densely packed into a few packing variants with slightly different atomic packing factors. The structural aspects and physicochemical properties related with the vacancies in such nanostructures are rarely explored because of lack of an effective way to control the introduction of vacancy sites. Highly voided metallic nanostructures with ordered vacancies are however energetically high lying and very difficult to synthesize. Here, we report a chemical method for synthesis of hierarchical Rh nanostructures (Rh NSs) composed of ultrathin nanosheets, composed of hexagonal close-packed structure embedded with nanodomains that adopt a vacated Barlow packing with ordered vacancies. The obtained Rh NSs exhibit remarkably enhanced electrocatalytic activity and stability toward the hydrogen evolution reaction (HER) in alkaline media. Theoretical calculations reveal that the exceptional electrocatalytic performance of Rh NSs originates from their unique vacancy structures, which facilitate the adsorption and dissociation of H2O in the HER.en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.relation.ispartofScience Advancesen_US
dc.rights© 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).en_US
dc.titleEvoking ordered vacancies in metallic nanostructures toward a vacated Barlow packing for high-performance hydrogen evolutionen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.researchCentre for Programmable Materialsen_US
dc.description.versionPublished versionen_US
dc.description.acknowledgementH.Z. acknowledges financial support from ITC via the Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), and the Start-Up Grants (project no. 9380100, 9610480, and 7200651) and grants (project no. 9610478 and 1886921) from City University of Hong Kong. Z.Z. acknowledges financial support from the National Natural Science Foundation of China (22071172). Y.Z. acknowledges financial support from the Zhejiang Provincial Natural Science Foundation of China (LR18B030003), the National Natural Science Foundation of China (51701181 and 21771161), and the Thousand Talents Program for Distinguished Young Scholars. L.G. acknowledges the Key Research Program of Frontier Sciences, CAS (no. QYZDB-SSW-JSC035), and the National Natural Science Foundation of China (51672307 and 51421002). We acknowledge the Facility for Analysis, Characterization, Testing and Simulation, Nanyang Technological University, Singapore, for the use of their electron microscopy (and/or x-ray) facilities. F.D. acknowledges the support from IBS-R019-D1 and the computational resources from CMCM, IBS. This research used resources of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, and was supported by the U.S. DOE under contract no. DE-AC02-06CH11357, and the Canadian Light Source and its funding partners. This research used 7-BM of the National Synchrotron Light Source II, a DOE Office of Science User Facility operated for the DOE Office of Science by Brookhaven National Laboratory under contract no. DE-SC0012704.en_US
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