Jin, Changhyun Lim, Jong-Chan Kim, Min Young Choi, Myung Sik Kim, Sang-Il Baek, Seung-Hyub Kim, Sun-Jae Lee, Seung Yong Kim, Hyun-Sik Lee, Kyu Hyoung 2024-01-19T11:01:45Z 2024-01-19T11:01:45Z 2022-11-04 2022-10 2187-0764 https://pubs.kist.re.kr/handle/201004/114470 WO3 nanostructures with different morphologies and dimensions were fabricated via solvothermal synthesis by adjusting the stirring time of the precursor solution. Ethanol-based solutions of the WCI6 precursor with various colors (dark green, yellow, white, blue, and blueblack) were prepared, and this triggered a significant change in the growth behavior during the evolution of WO3 nanostructures. Controlling the initial state of the precursors in solution enabled sequential nucleation and growth which resulted in the production of zero-to-three-dimensional nanostructures including nanoparticles, a mixture of nanosheets and nanoparticles, jointed-nanosheets, and three-dimensionally clustered jointed-nanosheets. The crystallographic characteristics (preferred orientation along the (002) plane) and the concentration of surface oxygen vacancies were also controllable, suggesting the formation of nanostructures with tuneable surface reactivity. Differing NO2 sensing performances were observed because of the variation in configurations of the WO3 nanostructures. English Elsevier | The Ceramic Society of Japan and the Korean Ceramic Society Impact of stirring time and the corresponding growth mechanism in the solvothermal synt:iesis of WO3 nanostructures Article 10.1080/21870764.2022.2129483 1 Journal of Asian Ceramic Societies, v.10, no.4, pp.779 - 787 Journal of Asian Ceramic Societies 10 4 779 787 Y scie scopus 000869180600001 Materials Science, Ceramics Materials Science Article METAL-OXIDES HYDROTHERMAL SYNTHESIS OXYGEN VACANCIES GAS SENSORS THIN-FILMS NANOPARTICLES NANORODS SEMICONDUCTOR PERFORMANCE NUCLEATION WO3 solvothermal method nucleation and growth stirring time gas sensor