부산대학교 도서관

Morphological effects on the electrochemical behaviors of Tin Dioxide (SnO.sub.2) have recently been explored in several studies. Nevertheless, the preparations of SnO.sub.2 in those works are mostly based on wet-chemistry methods, while the usage of dry-chemistry methods is still lack of investigation. In this work, for the first time, we report the successful fabrication of SnO.sub.2 particles attached on carbon fibers via a simple two-step Chemical Vapor Deposition (CVD) approach. CVD growth parameters (temperature, growth time and gas inlet flow rate) were systematically varied to observe the changes in morphologies (in terms of particle density and size distribution) as well as the formation of core-shell Sn/SnO.sub.2 structures; and the electrochemical properties of the as-synthesized samples were studied. Our experiments indicate strong correlations among the synthesis conditions, morphologies and electrochemical behaviors. Overall, our findings provide new insights into CVD as a morphological tailoring approach for electrochemical applications-in addition to its simple apparatus and short synthesizing duration, the process is easily extendable for the preparation of other metal and metal oxide particles.
Author(s): Tuan Kien Nguyen [sup.1], Shu Hearn Yu [sup.1], Jiaxin Yan [sup.1], Daniel H. C. Chua [sup.1] Author Affiliations: (1) grid.4280.e, 0000 0001 2180 6431, Department of Materials Science and [...]