CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Novel approaches for highly selective, room-temperature gas sensors based on atomically dispersed non-precious metals
Tian, RB; Wang, SY; Hu, XF; Zheng, JG; Ji, P; Lin, J; Zhang, J; Xu, MJ; Bao, J; Zuo, SW; Zhang, H; Zhang, W; Wang, JL; Yu, LD
2020
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume8Issue:45Pages:23784-23794
Subtype期刊论文
AbstractAtomically dispersed (AD) materials have incredible catalytic ability and offer atom economy with 100% metal utilization during catalytic reactions. Herein, we report the first attempt to synthesize AD FeNC materials for use as highly selective, room-temperature gas sensors. Aberration-corrected high-angle annular dark-field scanning transmission electron microscopy (AC-HAADF-STEM), extended X-ray absorption fine structure (EXAFS) spectroscopy, and Mossbauer spectroscopy characterization methods confirm the existence of atomically dispersed Fe with an FeN4 coordination. We demonstrate a room temperature, sensitive, and selective NO2 gas sensor technology using this platform, offering significant advantages over existing technology. Density functional theory (DFT) calculations verify that electrons are transferred to NO2 from FeN4 during NO2 adsorption. Both DFT calculations and experiments also reveal that the barrier for NO2 decomposition by AD FeNC is 0.73 eV, which is significantly lower than previously reported barriers (2.60-3.54 eV) in other materials. Such unique catalytic properties combined with a high surface affinity for NO2 molecules enable AD FeNC gas sensors to have excellent selective NO2 detection at room temperature. The method proposed here can inspire the use of AD materials to detect other gases and catalyze similar novel developments in the gas sensor industry.
KeywordSINGLE-ATOM CATALYST OXYGEN EVOLUTION REACTION NITROGEN-DIOXIDE GRAPHENE OXIDE CARBON NANOTUBE CHARGE-TRANSFER NO2 DETECTION SEMICONDUCTOR FILM SENSITIVITY
DOI10.1039/d0ta05775d
Indexed BySCI ; EI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/33036
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Dongguan Univ Technol, Sch Elect Engn & Intelligentizat, Dongguan 523808, Peoples R China
2.Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China
3.Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Res Ctr Sensor Sci & Technol, Special Display & Imaging Technol Innovat Ctr Anh, Hefei 230009, Peoples R China
4.Univ Calif Irvine, Irvine Mat Res Inst, Irvine, CA USA
5.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai Inst Appl Phys, Shanghai, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Key Lab Surface & Interface Chem & Energy Catalys, Hefei 230029, Peoples R China
8.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China
9.Xi An Jiao Tong Univ, Sch Sci, Dept Mat Phys, Xian 710049, Peoples R China
Recommended Citation
GB/T 7714
Tian, RB,Wang, SY,Hu, XF,et al. Novel approaches for highly selective, room-temperature gas sensors based on atomically dispersed non-precious metals[J]. JOURNAL OF MATERIALS CHEMISTRY A,2020,8(45):23784-23794.
APA Tian, RB.,Wang, SY.,Hu, XF.,Zheng, JG.,Ji, P.,...&Yu, LD.(2020).Novel approaches for highly selective, room-temperature gas sensors based on atomically dispersed non-precious metals.JOURNAL OF MATERIALS CHEMISTRY A,8(45),23784-23794.
MLA Tian, RB,et al."Novel approaches for highly selective, room-temperature gas sensors based on atomically dispersed non-precious metals".JOURNAL OF MATERIALS CHEMISTRY A 8.45(2020):23784-23794.
Files in This Item:
File Name/Size DocType Version Access License
Novel approaches for(1267KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tian, RB]'s Articles
[Wang, SY]'s Articles
[Hu, XF]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian, RB]'s Articles
[Wang, SY]'s Articles
[Hu, XF]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian, RB]'s Articles
[Wang, SY]'s Articles
[Hu, XF]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Novel approaches for highly selective, room-temperature gas sensors based on atomically dispersed non-precious metals.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.