Preparation of WO₃ Nanorods by Seeded Growth Hydrothermal Reaction

Abstract:

Tungsten oxide (WO₃) nanorods were successfully grown at low temperature of 90 °C by seeded growth hydrothermal reaction. The effect of sodium chloride (NaCl) addition on nanorod aggregation was studied. The hydrothermal reaction was conducted at various reaction periods (16-24 h). Monoclinic WO₃ nanorods started to grow from the seeds after 18 h of hydrothermal reaction and more vertical nanarods were formed after 20 h of treatment. The addition of NaCl successfully reduced the aggregation of nanorods. Cyclic voltammetry (CV) was performed to measure the electrochromic properties of the WO₃ nanorods. WO₃ nanorods grown with NaCl showed faster intercalation and de-intercalation processes due to less nanorods aggregation.

• Periodical: Advanced Materials Research (Volume 1024)
• Pages: 91-94
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1024.91
• Online since: August 2014
• Authors: Chai Yan Ng, Zhang Rong Yip, Abdul Razak Khairunisak*, Zainovia Lockman
• Keywords: Electrochromic, Low Temperature, NaCl, Tungsten Oxide

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