Fabrication and gas sensing property of
honeycomb-like ZnO
Chao Li ;Zhi Shuo Yu ;Shao Ming Fang ;Huan Xin Wang ;Yang Hai Gui ;Jia Qiang Xu ;Rong Feng Chen
【期刊名称】《中国化学快报（英文版）》 【年(卷),期】2008(019)005
【摘要】We report the structural characterization and proposed formation
mechanism
of
honeycomb-like
ZnO
conglomerationsfabricated by direct precipitation method. X-ray diffraction (XRD), energy-disperse X-ray spectrometry (EDS), scanning electronmicroscopy (SEM) showed that the as-prepared ZnO calcined at 700℃ were micron sphere particles with honeycomb-likestructure. In the UV-vis absorbing spectrum, it was observed that there is a new additional absorption band at 260 nm, and it wasspeculated that the absorption may be caused by defects on the surface and interface of honeycomb-like ZnO. The as-productsshowed high sensitivity and short response time to sulfured hydrogen gas. These results demonstrate that honeycomb-like ZnOconglomerations are very promising materials for fabricating H2S gas sensors.2008 Chao Li. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. 【总页数】5页(599-603)
【关键词】ZnO; Precipitation; Honeycomb-like; Gas sensing property
Fabrication and gas sensing property of honeycomb-like ZnO
