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dc.contributor.authorCao, Xunen_US
dc.contributor.authorPeng, Dongdongen_US
dc.contributor.authorWu, Caoen_US
dc.contributor.authorHe, Yongminen_US
dc.contributor.authorLi, Chaojiangen_US
dc.contributor.authorZhang, Boweien_US
dc.contributor.authorHan, Changcunen_US
dc.contributor.authorWu, Junshengen_US
dc.contributor.authorLiu, Zhengen_US
dc.contributor.authorHuang, Yizhongen_US
dc.identifier.citationCao, X., Peng, D., Wu, C., He, Y., Li, C., Zhang, B., Han, C., Wu, J., Liu, Z. & Huang, Y. (2021). Flexible Au micro-array electrode with atomic-scale Au thin film for enhanced ethanol oxidation reaction. Nano Research, 14(1), 311-319.
dc.description.abstractThe catalysis of Au thin film could be improved by fabrication of array structures in large area. In this work, nanoimprint lithography has been developed to fabricate flexible Au micro-array (MA) electrodes with ∼ 100% coverage. Advanced electron microscopy characterisations have directly visualised the atomic-scale three-dimensional (3D) nanostructures with a maximum depth of 6 atomic layers. In-situ observation unveils the crystal growth in the form of twinning. High double layer capacitance brings about large number of active sites on the Au thin film and has a logarithmic relationship with mesh grade. Electrochemistry testing shows that the Au MAs perform much better ethanol oxidation reaction than the planar sample; MAs with higher mesh grade have a greater active site utilisation ratio (ASUR), which is important to build electrochemical double layer for efficient charge transfer. Further improvement on ASUR is expected for greater electrocatalytic performance and potential application in direct ethanol fuel cell.[Figure not available: see fulltext.].en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.relation.ispartofNano Researchen_US
dc.rights© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020. All rights reserved.en_US
dc.titleFlexible Au micro-array electrode with atomic-scale Au thin film for enhanced ethanol oxidation reactionen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.subject.keywordsAtomic-Scale Three-Dimensional (3D) Nanostructuresen_US
dc.subject.keywordsAtomic-Scale Active Sitesen_US
dc.description.acknowledgementThis research was supported by the MOE AcRF Tier 1 grant M4011528. The XRD and FEG-TEM characterisations were performed at Facility for Analysis, Characterisation, Testing and Simulation (FACTS) Lab; the FEG-SEM/FIB characterisations were carried out at Microelectronics Reliability and Characterisation (MRC) Lab.en_US
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