Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing

doi:10.1016/j.scib.2018.01.015

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	Ordered mesoporous NiFe2O4 with ultrathin framework for low-ppb toluene sensing
	Lai, Xiaoyong 1; Cao, Kun 1; Shen, Guoxin 1; Xue, Ping 1; Wang, Dan 2; Hu, Fang 3; Zhang, Jianli 1; Yang, Qingfeng 1; Wang, Xiaozhong 1
刊名	SCIENCE BULLETIN
	2018-02-15
卷号	63 期号:3 页码:187-193
关键词	Mesoporous Material Nife2o4 Gas Sensing Low-ppb Toluene
ISSN号	2095-9273
DOI	10.1016/j.scib.2018.01.015
文献子类	Article
英文摘要	Highly 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.
WOS关键词	MICROWAVE ABSORBING PROPERTIES ; GAS SENSOR ; CRYSTALLINE FRAMEWORK ; MAGNETIC-PROPERTIES ; TUNGSTEN-OXIDES ; LOW-TEMPERATURE ; NICKEL FERRITE ; SPINEL FERRITE ; PORE WALLS ; NO2 GAS
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:000425946400009
资助机构	National 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)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/24063]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.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
推荐引用方式 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.