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  4. 中科院固体物理研究所
Anatase TiO2 hierarchical microspheres consisting of truncated nanothorns and their structurally enhanced gas sensing performance

文献类型：期刊论文

作者Yang, Y.1; Hu, J. X.1; Liang, Y.2; Zou, J. P.1; Xu, K.1; Hu, R. J.1; Zou, Z. D.1; Yuan, Q.1; Chen, Q. Q.1; Lu, Y.3
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2017-02-15
卷号694期号:无页码:292-299
关键词Tio2 Hierarchical Microspheres Crystal Facets Gas Sensing
DOI10.1016/j.jallcom.2016.09.328
文献子类Article
英文摘要Anatase TiO2 hierarchical microspheres were synthesized by a facile hydrothermal method. Characterization results indicated that the microspheres were consisted of massively aggregative nanothorns with truncated tips, which had exposed {001} and (101) crystal facets, and there were abundant mesoporous structures in the microspheres. A possible growth model of the TiO2 hierarchical microspheres was put forward based on a series of experimental analysis. When used for gas sensing, it was found that the TiO2 hierarchical microspheres showed a distinct high sensitivity towards acetone, the optimal response to 100 ppm acetone was 14.6, which was much higher than that of other materials reported in previous works. Moreover, the TiO2 hierarchical microspheres exhibited a fast response/recovery speeds (<10 s), a low detection limit (the response still reaches 6.1 even at a low acetone concentration of 10 ppm) and an excellent selectivity. Through systematical analysis, it can be concluded that the enhancement of gas sensing performance of the TiO2 hierarchical microspheres was ascribed to its unique structural features (perfect hierarchical mesoporous structure as well as specific crystal facets exposing), which could be described as structurally enhanced gas sensing performance. The present results encourage us to further investigate crystal facets-dependent gas sensing properties of TiO2 for the designing of conductometric gas sensors with better sensing performance. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词PHOTOCATALYTIC ACTIVITY ; CRYSTAL FACETS ; NANOCRYSTALS ; SENSORS ; NANOSTRUCTURES ; FABRICATION ; PROPERTY ; NANORODS ; REMOVAL ; CR(VI)
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000390622900041
资助机构Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; 61664005 ; 61664005 ; 61664005 ; 61664005 ; 20161BAB216119) ; 20161BAB216119) ; 20161BAB216119) ; 20161BAB216119) ; KJLD14020) ; KJLD14020) ; KJLD14020) ; KJLD14020) ; 2015004) ; 2015004) ; 2015004) ; 2015004) ; 51562010 ; 51562010 ; 51562010 ; 51562010 ; 51461019 ; 51461019 ; 51461019 ; 51461019 ; 61561026) ; 61561026) ; 61561026) ; 61561026) ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of China(51602134 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; Natural Science Foundation of Jiangxi province of China(20151BAB216008 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; research projects of education department of Jiangxi province(150308 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; open fund of Jiangxi Key Laboratory of Nanomaterials and Sensors(2015002 ; 61664005 ; 61664005 ; 61664005 ; 61664005 ; 20161BAB216119) ; 20161BAB216119) ; 20161BAB216119) ; 20161BAB216119) ; KJLD14020) ; KJLD14020) ; KJLD14020) ; KJLD14020) ; 2015004) ; 2015004) ; 2015004) ; 2015004) ; 51562010 ; 51562010 ; 51562010 ; 51562010 ; 51461019 ; 51461019 ; 51461019 ; 51461019 ; 61561026) ; 61561026) ; 61561026) ; 61561026)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31722]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Jiangxi Normal Univ, Sch Phys Commun & Elect, Jiangxi Key Lab Photoelect & Telecommun, Jiangxi Key Lab Nanomat & Sensors, Nanchang 330022, Jiangxi, Peoples R China
2.Jiangxi Univ Technol, Dept Sci Educ, Nanchang 330098, Jiangxi, Peoples R China
3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Key Lab Mat Phys,Ctr Environm & Energy Nanomat, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Y.,Hu, J. X.,Liang, Y.,et al. Anatase TiO2 hierarchical microspheres consisting of truncated nanothorns and their structurally enhanced gas sensing performance[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,694(无):292-299.
APA Yang, Y..,Hu, J. X..,Liang, Y..,Zou, J. P..,Xu, K..,...&Yuan, C. L..(2017).Anatase TiO2 hierarchical microspheres consisting of truncated nanothorns and their structurally enhanced gas sensing performance.JOURNAL OF ALLOYS AND COMPOUNDS,694(无),292-299.
MLA Yang, Y.,et al."Anatase TiO2 hierarchical microspheres consisting of truncated nanothorns and their structurally enhanced gas sensing performance".JOURNAL OF ALLOYS AND COMPOUNDS 694.无(2017):292-299.

入库方式： OAI收割

来源：合肥物质科学研究院

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