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Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning
Huang, Baoyu; Zhao, Changhui; Zhang, Mingxiang; Zhang, ZM(张泽民); Xie, EQ(谢二庆); Zhou, JY(周金元); Han, WH(韩卫华)
2015-05-07
Source PublicationAPPLIED SURFACE SCIENCE   Impact Factor & Quartile
ISSN0169-4332
Volume349Issue:nullPages:615-621
Abstract

Indium-doped ZnO (IZO) nanotubes with various indium contents (0.01-0.20) were synthesized via a facile electrospinning method. Results of X-ray diffraction and transmission electron microscopy demonstrate that all samples are consisted of hexagonal wurtzite-typed ZnO, showing a well-crystallized indium-zinc-oxide solid solution when only a small amount of zinc ions substituted by indium ions (0.01). Once the amount of indium dopants >= 0.05, there will form some amorphous In2O3, leading to a pronounced decrease in grain sizes. Gas-sensing performances revealed that the IZO nanotube-based sensors have enhanced ethanol-sensing characteristics, especially, sensor based on IZO-0.01 nanotubes shows the highest response (R-a/R-g = 81.7), which is twice that of the undoped ZnO nanotubes (40.0) toward 100 ppm ethanol at an operating temperature of 275 degrees C. And IZO-0.20 nanotube-based sensor presents a relatively high response at high ethanol concentrations. Our research suggested that these remarkable enhanced ethanol-sensing properties can be closely related to the formation of indium-zinc-oxide solid solutions and/or heterostructures between ZnO and amorphous In2O3. (C) 2015 Published by Elsevier B.V.

KeywordZno Nanotubes In-2 O-3 Electrospinning Ethanol Gas Sensors
PublisherELSEVIER
DOI10.1016/j.apsusc.2015.05.003
Publication PlaceAMSTERDAM
URL查看原文
Indexed BySCI ; SCIE
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 教育部留学回国人员科研启动基金 ; 中央高校基本科研业务费专项资金
Project NumberNational Science Foundation of China [61176058, U1232121, 51202100, 61404066] ; Fundamental Research Funds for the Central Universities [lzujbky-2015-202] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China
WOS IDWOS:000357129100082
Funding OrganizationNSFC ; MOE ; LZU
SubtypeArticle
Original Document TypeJournal article
EI ID20153001067582
IRIDWOS:000357129100082
DepartmentSchool of Physical Science and Technology, Lanzhou University
Citation statistics
Cited Times:57[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/112253
Collection物理科学与技术学院
Affiliation
School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
First Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Huang, Baoyu,Zhao, Changhui,Zhang, Mingxiang,et al. Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning[J]. APPLIED SURFACE SCIENCE,2015,349(null):615-621.
APA Huang, Baoyu.,Zhao, Changhui.,Zhang, Mingxiang.,Zhang, Zemin.,Xie, EQ.,...&Han, WH.(2015).Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning.APPLIED SURFACE SCIENCE,349(null),615-621.
MLA Huang, Baoyu,et al."Doping effect of In2O3 on structural and ethanol-sensing characteristics of ZnO nanotubes fabricated by electrospinning".APPLIED SURFACE SCIENCE 349.null(2015):615-621.
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