标题:In2O3-SnO2 hybrid porous nanostructures delivering enhanced formaldehyde sensing performance
作者:Ge, Wenwen; Chang, Yuhong; Natarajan, Vinothkumar; Feng, Zhenyu; Zhan, Jinhua; Ma, Xicheng
作者机构:[Ge, Wenwen; Chang, Yuhong; Natarajan, Vinothkumar; Feng, Zhenyu; Zhan, Jinhua; Ma, Xicheng] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shando 更多
通讯作者:Zhan, JH;Ma, XC
通讯作者地址:[Zhan, JH; Ma, XC]Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China.
来源:JOURNAL OF ALLOYS AND COMPOUNDS
出版年:2018
卷:746
页码:36-44
DOI:10.1016/j.jallcom.2018.02.171
关键词:Gas sensor; SnO2; In2O3; Formaldehyde; Hybrid nanostructures
摘要:Novel In2O3-SnO2 hybrid sensing nanostructures with porous nature were successfully prepared and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and high resolution transmission electron microscopy (HRTEM). Gas sensing properties of the fabricated sensor based on the as-prepared In2O3-SnO2 hybrid nanostructures were systematically investigated and compared with those of pure SnO2. The hybrid nanostructures containing 3% In2O3 exhibit the highest response value of 30.7-100 ppm formaldehyde at 100 degrees C, which was 14 times higher than that of pure SnO2. Moreover, gas sensors based on the as-prepared In2O3-SnO2 hybrid nanostructures also exhibit high stability and good selectivity for formaldehyde. The enhanced sensing performances of formaldehyde were mainly attributed to the formation of n-n heterojunctions and the synergistic interaction between In2O3 and SnO2. (c) 2018 Elsevier B.V. All rights reserved.
收录类别:SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042652807&doi=10.1016%2fj.jallcom.2018.02.171&partnerID=40&md5=616247a65dcf3a59a90c9ef18fa894a6
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