Article pubs.acs.org/crystal
Facile Green Synthesis of WO3·H2O Nanoplates and WO3 Nanowires with Enhanced Photoelectrochemical Performance Arpan Kumar Nayak,† Youngku Sohn,‡ and Debabrata Pradhan*,† †
Materials Science Centre, Indian Institute of Technology, Kharagpur 721 302, West Bengal, India Department of Chemistry, Chungnam National University, Yuseong-gu, Daejeon 34134, Republic of Korea
‡
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ABSTRACT: The synthesis of nanostructured materials with controlled shape without using a capping agent and/or a hazardous chemical is one of the major existing challenges. Herein, we report a facile precipitation method to synthesize stacked orthorhombic tungsten trioxide hydrate (WO3·H2O) nanoplates by simply mixing WCl6 (0.025 M) in ethanol at room temperature for 1 h. On subsequent solvothermal treatment of WO3·H2O nanoplates at 200 °C in ethanol, formation of monoclinic tungsten trioxide (WO3) nanowires of
