Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 36, Pages 17682-17687Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta06676k
Keywords
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Funding
- National Natural Science Foundation of China [21503111, 21576139]
- Natural Science Foundation of Jiangsu Province [BK20171473]
- Natural Science Foundation of Jiangsu Higher Education Institutions of China [16KJB150020]
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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One-dimensional (1D) Au nanowires with narrow diameters and high aspect ratios have attracted increasing attention because of their distinctive physicochemical properties and extensive applications. Despite significant advancements in the synthesis of 1D Au nanowires, many of the early reported synthetic strategies usually involve complicated procedures and commonly produce Au nanowires with large diameters, low aspect ratios and low yields. Herein, we report a feasible alpha-naphthol-assisted preparation of ultrathin Au nanowires with an extremely rapid reaction rate (completed in similar to 1 min) under moderate conditions. The resultant Au nanowires possess a Boerdijk-Coxeter helix-structured morphology dominated by (111) facets. The rapid coordination-induced formation of Au nanowire-arrayed microspheres and their gradual dissociation account for the formation of ultrathin Au nanowires. Due to the 1D anisotropy, plentiful surface atoms and abundant structural defects, these ultrathin Au nanowires exhibit outstanding electrocatalytic performance toward the oxygen reduction reaction (ORR) with boosted activity, durability and alcohol resistance compared to Au nanowire-arrayed microspheres, Au nanoparticles and a commercial Pt black catalyst. The present work provides a novel perspective for synthesis of ultrathin Au nanowires with various promising applications.
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