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dc.contributor.authorLi, Fengwang
dc.date.accessioned2021-09-13T04:48:45Z
dc.date.available2021-09-13T04:48:45Z
dc.date.issued2021en_AU
dc.identifier.urihttps://hdl.handle.net/2123/25985
dc.description.abstract2D bismuth nanosheets are a promising layered material for formate-producing via electrocatalytic CO2 conversion. However, the commercial interest of bismuth nanosheets in CO2 electroreduction is still rare due to the undesirable current density for formate at moderate operation potentials (about 200 mA mg−1) and harsh synthesis conditions (high temperature and/or high pressure). This work reports the preparation of Bi nanosheets with a lateral size in micrometer-scale via electrochemical cathodic exfoliation in aqueous solution at normal pressure and temperature. As-prepared Bi LNSs (L indicates large lateral size) possess high Faradaic efficiencies over 90% within a broad potential window from −0.44 to −1.10 V versus RHE and a superior partial current density about 590 mA mg−1 for formate in comparison with state-of-the-art results. Structure analysis, electrochemical results, and density functional theory calculations demonstrate that the increasing tensile lattice strain observed in Bi LNSs leads to less overlap of d orbitals and a narrower d-band width, which tuning the intermediate binding energies, and therefore promotes the intrinsic activity.en_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.relation.ispartofSmallen_AU
dc.rightsCopyright All Rights Reserveden_AU
dc.titleCO2 Electroreduction to Formate at a Partial Current Density up to 590 mA mg−1 via Micrometer-Scale Lateral Structuring of Bismuth Nanosheetsen_AU
dc.typeArticleen_AU
dc.subject.asrc0306 Physical Chemistry (incl. Structural)en_AU
dc.identifier.doi10.1002/smll.202100602
dc.relation.arcDE200100477
dc.rights.otherThis is the peer reviewed version of the following article: Wang, D., Liu, C., Zhang, Y. N., Wang, Y., Wang, Z., Ding, D., Cui, Y., Zhu, X., Pan, C., Lou, Y., Li, F., Zhu, Y., Zhang, Y., CO2 Electroreduction to Formate at a Partial Current Density up to 590 mA mg−1 via Micrometer-Scale Lateral Structuring of Bismuth Nanosheets. Small 2021, 17, 2100602., which has been published in final form at https://doi.org/10.1002/smll.202100602. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_AU
usyd.facultySeS faculties schools::Faculty of Engineering::School of Chemical and Biomolecular Engineeringen_AU
workflow.metadata.onlyNoen_AU


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