Bi2Sn2O7 nanoparticles attached to SnO2 nanowires and used as catalysts

作者：Kim Hyoun Woo^*; Shim Seung Hyun; Lee Jong Woo; Park Jae Young; Kim Sang Sub

来源：Chemical Physics Letters, 2008, 456(4-6): 193-197.

DOI：10.1016/j.cplett.2008.03.024

We introduce a simple method of synthesizing SnO2 nanowire-Bi2Sn2O7 nanoparticle composites based on the principle that SnO2 nanowires can be grown by using Bi as catalysts. A mixture of Bi and Sn powders was thermally evaporated, and the effects of growth temperature on the morphology and structure of the products were investigated. We obtained Bi2Sn2O7-tipped SnO2 nanowires at 700 degrees C through a vapor-liquid-solid (VLS) process, whereas particle-free SnO2 nanowires were produced at higher temperatures. We have investigated the oxygen sensing properties of the as-synthesized product.

• 出版日期2008-5-5