Partial P-Type Metal Ions Doping Induced Variation of Both Crystal Structure and Oxygen Vacancy Within Cu/SnO2 Metastable Solid Solution Nanofibers for Highly Sensitive C2H2 Sensor

doi:10.1007/s40242-021-1144-0

Chemical Research in Chinese Universities ›› 2021, Vol. 37 ›› Issue (3): 584-588.doi: 10.1007/s40242-021-1144-0

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Partial P-Type Metal Ions Doping Induced Variation of Both Crystal Structure and Oxygen Vacancy Within Cu/SnO₂ Metastable Solid Solution Nanofibers for Highly Sensitive C₂H₂ Sensor

WANG Ruifang^1,2, YU Xi^1,2, LI Zhenyu^1,2, CHEN Jingyu^2,3, JIANG Tingting⁴

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, P. R. China;
2. Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, P. R. China;
3. School of Engineering, Southwest Petroleum University, Nanchong 637001, P. R. China;
4. School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, P. R. China

Received:2021-03-24 Revised:2021-05-08 Online:2021-06-01 Published:2021-05-31
Contact: LI Zhenyu, CHEN Jingyu, JIANG Tingting E-mail:zhenyu.li@swpu.edu.cn;Jingyu_chencn@hotmail.com;tingting20062120@126.com
Supported by:
This work was supported by the National Natural Science Foundation of China (No.52073238) and the Open Funds of the State Key Laboratory of Oil and Gas Reservoir Geology and Exploration of Southwest Petroleum University, China (Nos.PLN201806, PLN202019).

Abstract

Abstract: Partial P-type metal ions doping(PPMID) is an alternative method to further enhance the gas sensing performance of N-type metal oxides(NMOs) in contrast to that of P-N metal oxides heterojunctions, but the influences of the introduction of PPMID on the grain size and oxygen vacancies of NMOs have been rarely investigated. Herein, a simple and effective route has been demonstrated to address this problem with Cu²⁺-doped SnO₂ metastable solid solution nanofibers(CSMSSNs) as model and C₂H₂ as target molecule by combining electrospinning and calcination technique. It seems that the introduction of PPMID can also affect crystal structure and oxygen vacancies of NMOs, proven by combining X-ray diffraction(XRD) and X-ray photoelectron spectra(XPS). Thus, PPD, crystal structure and oxygen vacancies have been combined to clarify the enhanced sensing performance of Cu-doped SnO₂ metastable solid solution nanofibers angainst C₂H₂.

Key words: P-Type doping, P-N heterojunction, Electrospinning, Metastable solid solution nanofiber, C₂H₂ sensor

WANG Ruifang, YU Xi, LI Zhenyu, CHEN Jingyu, JIANG Tingting. Partial P-Type Metal Ions Doping Induced Variation of Both Crystal Structure and Oxygen Vacancy Within Cu/SnO₂ Metastable Solid Solution Nanofibers for Highly Sensitive C₂H₂ Sensor[J]. Chemical Research in Chinese Universities, 2021, 37(3): 584-588.

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Partial P-Type Metal Ions Doping Induced Variation of Both Crystal Structure and Oxygen Vacancy Within Cu/SnO₂ Metastable Solid Solution Nanofibers for Highly Sensitive C₂H₂ Sensor

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