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One-pot electrospinning and gas-sensing properties of LaMnO3 perovskite/SnO2 heterojunction nanofibers

Research Paper

Abstract

Using nanostructured composite materials is an effective way to obtain high-performance gas sensors. This work used p-type LaMnO3 perovskite-structured semiconductor as a novel promoter for SnO2 nanofibers and studied the gas-sensing characteristics. Nanofibers of 0–2.5-mol% LaMnO3/SnO2 were synthesized via one-pot electrospinning. Compared with pristine SnO2, LaMnO3/SnO2 composite nanofibers exhibited smaller particle size (10–30 nm) and higher BET surface area. XPS revealed that oxygen surface absorption decreased with increasing LaMnO3 content. 0.3-mol% LaMnO3/SnO2 exhibited significantly enhanced ethanol sensitivity relative to pristine SnO2. A response of 20 was obtained at the optimum temperature of 260 °C for 100-ppm ethanol. Higher LaMnO3 loading led to decrease of the ethanol response. The impact of LaMnO3 loading on the sensing behavior of SnO2 nanofibers was discussed in terms of p-n heterojunction formation and changes in the microstructure and catalytic properties.

Keywords

SnO2 nanofiber Heterojunction Perovskite Composite Gas sensor Nanocomposite materials 

Notes

Funding information

Finance support by the Natural Science Foundation of China (No. U1432108) and the Fundamental Research Funds for the Central Universities (No. WK2320000034) is gratefully acknowledged.

Compliance with ethical standards

Conflicts of interest

The authors declare that they have no conflicts of interest.

References

  1. Abe S, Choi US, Shimanoe K, Yamazoe N (2005) Influences of ball-milling time on gas-sensing properties of Co3O4–SnO2 composites. Sens Actuators B Chem 107:516–522.  https://doi.org/10.1016/j.snb.2004.11.010 CrossRefGoogle Scholar
  2. Afzal A, Cioffi N, Sabbatini L, Torsi L (2012) NOx sensors based on semiconducting metal oxide nanostructures: progress and perspectives. Sens Actuators B Chem 171-172:25–42.  https://doi.org/10.1016/j.snb.2012.05026 CrossRefGoogle Scholar
  3. Choi YH, Hong SH (2007) H2 sensing properties in highly oriented SnO2 thin films. Sens Actuators B Chem 125:504–509.  https://doi.org/10.1016/j.snb.2007.02.043 CrossRefGoogle Scholar
  4. Choi SW, Park JY, Kim SS (2009) Synthesis of SnO2-ZnO core-shell nanofibers via a novel two-step process and their gas sensing properties. Nanotechnology 20:465–603.  https://doi.org/10.1088/0957-4484/20/46/465603 Google Scholar
  5. Choi SW, Katoch A, Zhang J, Kim SS (2013) Electrospun nanofibers of CuO-SnO2 nanocomposite as semiconductor gas sensors for H2S detection. Sens Actuators B Chem 176:585–591.  https://doi.org/10.1016/j.snb.2012.09.035 CrossRefGoogle Scholar
  6. Du HY, Wang J, Su MY, Yao PJ, Zheng YG, Yu NS (2012) Formaldehyde gas sensor based on SnO2/In2O3 hetero-nanofibers by a modified double jets electrospinning process. Sens Actuators B Chem 166-167:746–752.  https://doi.org/10.1016/j.snb.2012.03.055 CrossRefGoogle Scholar
  7. Du HY, Wang J, Sun YH, Yao PJ, Li XG, Yu NS (2015) Investigation of gas sensing properties of SnO2/In2O3 composite hetero-nanofibers treated by oxygen plasma. Sens Actuators B Chem 206:753–763.  https://doi.org/10.1016/j.snb.2014.09.010 CrossRefGoogle Scholar
  8. Jeong HM, Kim JH, Jeong SY, Kwak CH, Lee JH (2016) Co3O4-SnO2 hollow heteronanostructures: facile control of gas selectivity by compositional tuning of sensing materials via galvanic replacement. ACS Appl Mater Interfaces 8:7877–7883.  https://doi.org/10.1021/acsami.6b00216 CrossRefGoogle Scholar
  9. Kim ID, Rothschild A, Tuller HL (2013) Advances and new directions in gas-sensing devices. Acta Mater 61:974–1000.  https://doi.org/10.1016/j.actamat.2012.10.041 CrossRefGoogle Scholar
  10. Li Z, Yi JX (2017) Enhanced ethanol sensing of Ni-doped SnO2 hollow spheres synthesized by a one-pot hydrothermal method. Sens Actuators B Chem 243:96–103.  https://doi.org/10.1016/j.snb.2016.11.136 CrossRefGoogle Scholar
  11. Liu L, Zhang Y, Wang GG, Li SC, Wang LY, Han Y, Jiang XX, Wei AG (2011) High toluene sensing properties of NiO–SnO2 composite nanofiber sensors operating at 330 °C. Sens Actuators B Chem 160:448–454.  https://doi.org/10.1016/j.snb.2011.08.007 CrossRefGoogle Scholar
  12. Liu X, Zhang J, Guo X, Wang S, Wu S (2012) Core–shell Fe2O3@SnO2/Au hybridstructures and their enhanced gas sensing properties. RSC Adv 2:1650–1655.  https://doi.org/10.1039/C1RA00811K CrossRefGoogle Scholar
  13. Liu JY, Wang TS, Wang BQ, Sun P, Yang QX, Liang XS, Song HW, Lu GY (2017) Highly sensitive and low detection limit of ethanol gas sensor based on hollow ZnO/SnO2 spheres composite material. Sens Actuators B Chem 245:551–559.  https://doi.org/10.1016/j.snb.2017.01.148 CrossRefGoogle Scholar
  14. Meng FL, Hou NN, Jin Z, Sun B, Guo Z, Kong LT, Xiao XH, Wu H, Li MQ, Liu JH (2015) Ag-decorated ultra-thin porous single-crystalline ZnO nanosheets prepared by sunlight induced solvent reduction and their highly sensitive detection of ethanol. Sens Actuators B Chem 209:975–982.  https://doi.org/10.1016/j.snb.2014.12.078 CrossRefGoogle Scholar
  15. Miller DR, Akbar SA, Morris PA (2014) Nanoscale metal oxide-based heterojunctions for gas sensing: a review. Sens Actuators B Chem 204:250–272.  https://doi.org/10.1016/j.snb.2014.07.074 CrossRefGoogle Scholar
  16. Mizusaki J, Kamata Y, Kamata H (2000) Electronic conductivity, Seebeck coefficient, defect and electronic. Solid State Ionics 132:167–180.  https://doi.org/10.1016/S0167-2738(00)00662-7 CrossRefGoogle Scholar
  17. Najjar H, Batis H (2010) La–Mn perovskite-type oxide prepared by combustion method: catalytic activity in ethanol oxidation. Appl Catal A Gen 383:192–201.  https://doi.org/10.1016/j.apcata.2010.05.048 CrossRefGoogle Scholar
  18. Qin WF, Xu L, Song J, Xing RQ, Song HW (2013) Highly enhanced gas sensing properties of porous SnO2–CeO2 composite nanofibers prepared by electrospinning. Sens Actuators B Chem 185:231–237.  https://doi.org/10.1016/j.snb.2013.05.001 CrossRefGoogle Scholar
  19. Seah M (1980) The quantitative analysis of surfaces by XPS: a review. Surf Interface Anal 2:222–239.  https://doi.org/10.1002/sia.740020607 CrossRefGoogle Scholar
  20. Song X, Liu Y (2009) Characterization of electrospun ZnO-SnO2 nanofibers for ethanol sensor Sens. Actuators A Phys 154:175–179CrossRefGoogle Scholar
  21. Tougaard S (1996) Surface nanostructure determination by X-ray photoemission spectroscopy peak shape analysis. J Vac Sci Technol A 14:1415–1423.  https://doi.org/10.1116/1.579963 CrossRefGoogle Scholar
  22. Wang W, Li Z, Zheng W, Huang H, Wang C, Sun J (2010) Cr2O3-sensitized ZnO electrospun nanofibers based ethanol detectors. Sens Actuators B Chem 143:754–758.  https://doi.org/10.1016/j.snb.2009.10.016 CrossRefGoogle Scholar
  23. Wang L, Lou Z, Zhang R, Zhou T, Deng J, Zhang T (2016) Hybrid Co3O4/SnO2 core-shell nanospheres as real-time rapid-response sensors for ammonia gas. ACS Appl Mater Interfaces 8:6539–6545.  https://doi.org/10.1021/acsami.6b00305 CrossRefGoogle Scholar
  24. Wu JJ, Huang QW, Zeng DW, Zhang SP, Yang L, Xia DS, Xiong ZD, Xie CS (2014) Al-doping induced formation of oxygen-vacancy for enhancing gas-sensing properties of SnO2 NTs by electrospinning. Sens Actuators B Chem 198:62–69.  https://doi.org/10.1016/j.snb.2014.03.012 CrossRefGoogle Scholar
  25. Xu JQ, Han JJ, Zhang Y, Sun YA, Xie B (2008) Studies on alcohol sensing mechanism of ZnO based gas sensors. Sens Actuators B Chem 132:334–339.  https://doi.org/10.1016/j.snb.2008.01.062 CrossRefGoogle Scholar
  26. Zhang Z, Shao C, Li X, Wang C, Zhang M, Liu Y (2010) Electrospun nanofibers of p-type NiO/n-type ZnO heterojunctions with enhanced photocatalytic activity. ACS Appl Mater Interfaces 2:2915–2923.  https://doi.org/10.1021/am100618h CrossRefGoogle Scholar
  27. Zhang JN, Lu HB, Liu C, Chen CJ, Xin X (2017a) Porous NiO-WO3 heterojunction nanofibers fabricated by electrospinning with enhanced gas sensing properties. RSC Adv 7:40499–40509.  https://doi.org/10.1039/c7ra07663k CrossRefGoogle Scholar
  28. Zhang H, Yi JX, Jiang X (2017b) Fast response, highly sensitive and selective mixed-potential H2 sensor based on (La, Sr)(Cr, Fe)O3-δ perovskite sensing electrode. ACS Appl Mater Interfaces 9:17218–17225.  https://doi.org/10.1021/acsami.7b01901 CrossRefGoogle Scholar
  29. Zhao Y, He XL, Li JP, Gao XG, Jia J (2012) Porous CuO/SnO2 composite nanofibers fabricated by electrospinning and their H2S sensing properties. Sens Actuators B Chem 165:82–87.  https://doi.org/10.1016/j.snb.2012.02.020 CrossRefGoogle Scholar
  30. Zheng YG, Wang J, Yao PJ (2011) Formaldehyde sensing properties of electrospun NiO-doped SnO2 nanofibers. Sens Actuators B Chem 156:723–730.  https://doi.org/10.1016/j.snb.2011.02.026 CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Fire Science, Department of Safety Science and EngineeringUniversity of Science and Technology of ChinaHefeiPeople’s Republic of China

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