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Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing
Lai, Xiaoyong1; Cao, Kun1; Shen, Guoxin1; Xue, Ping1; Wang, Dan2; Hu, Fang3; Zhang, Jianli1; Yang, Qingfeng1; Wang, Xiaozhong1
2018-02-15
Source PublicationSCIENCE BULLETIN
ISSN2095-9273
Volume63Issue:3Pages:187-193
AbstractHighly sensitive and selective detection against specific target gases, especially at low-ppb (part per billion) level, remain a great number of challenges in gas sensor applications. In this paper, we first present an ordered mesoporous NiFe2O4 for highly sensitive and selective detection against low-ppb toluene. A series of mesoporous NiFe2O4 materials were synthesized by templating from mesoporous silica KIT-6 and its framework thickness was reduced from 8.5 to 5 nm by varying the pore size of KIT-6 from 9.4 to 5.6 nm, accompanied with the increase of the specific surface area from 134 to 216 m(2) g(-1). The ordered mesoporous NiFe2O4 with both ultrathin framework of 5 nm and large specific surface area of up to 216 m(2) g(-1) exhibits a highest response (R-gas/R-air - 1 = 77.3) toward 1,000 ppb toluene at 230 degrees C and is nearly 7.3 and 76.7 times higher than those for the NiFe2O4 replica with thick framework and its bulk counterpart respectively, which also possesses a quite low limit of detection (<2 ppb), and good selectivity. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
KeywordMesoporous Material Nife2o4 Gas Sensing Low-ppb Toluene
SubtypeArticle
WOS HeadingsScience & Technology
DOI10.1016/j.scib.2018.01.015
Indexed BySCI
Language英语
WOS KeywordMICROWAVE ABSORBING PROPERTIES ; GAS SENSOR ; CRYSTALLINE FRAMEWORK ; MAGNETIC-PROPERTIES ; TUNGSTEN-OXIDES ; LOW-TEMPERATURE ; NICKEL FERRITE ; SPINEL FERRITE ; PORE WALLS ; NO2 GAS
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
Funding OrganizationNational First-Rate Discipline Construction Project of Ningxia(NXYLXK2017A04 ; National Natural Science Foundation of China(51362024 ; Foundation of State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering(2016-19) ; National Science Fund for Distinguished Young Scholars(21325105) ; 2017CET02KY03 ; 21006116 ; 2017CET04KY05) ; 51672138)
WOS IDWOS:000425946400009
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24063
Collection生化工程国家重点实验室
Affiliation1.Ningxia Univ, Sch Chem & Chem Engn, State Key Lab High Efficiency Utilizat Coal & Gre, Yinchuan 750021, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Lai, Xiaoyong,Cao, Kun,Shen, Guoxin,et al. Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing[J]. SCIENCE BULLETIN,2018,63(3):187-193.
APA Lai, Xiaoyong.,Cao, Kun.,Shen, Guoxin.,Xue, Ping.,Wang, Dan.,...&Wang, Xiaozhong.(2018).Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing.SCIENCE BULLETIN,63(3),187-193.
MLA Lai, Xiaoyong,et al."Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing".SCIENCE BULLETIN 63.3(2018):187-193.
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