Decorating spherical In 2 O 3 nanoparticles onto ZnO nanosheets for outstanding gas-sensing performances
- PDF / 1,935,728 Bytes
- 10 Pages / 595.276 x 790.866 pts Page_size
- 29 Downloads / 235 Views
Decorating spherical In2O3 nanoparticles onto ZnO nanosheets for outstanding gas‑sensing performances Sufaid Shah1 · Shahid Hussain1 · Guanjun Qiao1,2 · Jing Tan1 · Muhammad Sufyan Javed3 · Zulfiqar1 · Chuanxin Ge1 · Mingsong Wang1 · Guiwu Liu1 Received: 30 September 2019 / Accepted: 17 January 2020 / Published online: 27 January 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract The presence and detection of hazardous environmental gases at deficient concentrations are essential to protect human beings from intensive gas exposures. Therefore, the development of high-response gas sensors is vital to overcome these overwhelming issues. The spherical In2O3 nanoparticles are successfully decorated onto ZnO nanosheets in ZnO@In2O3 (ZIO) nanocomposites via a simple co-precipitation method. The as-prepared nanocomposites are exposed to gas-sensing applications. The fabricated gas sensors exhibit high sensing response and selectivity towards NO2 gas than other gases, tested at various working temperatures and different range of gas concentrations. The gas-sensing property of ZnO nanosheets and ZIO nanocomposites has been investigated, which reveals that 10 wt% ZIO nanocomposites shows the outstanding response of 68 at 70 ppm (1.88% higher than pristine ZnO NSs), possesses fast response/recovery time (43, 65 s) respectively, and demonstrates excellent stability and repeatability. A plausible nanostructure formation and gas-sensing mechanism are also discussed in detail. The fabricated sensors are considered potential applicants in the development of the NO2-based gas sensor industry.
1 Introduction In recent decades, the detection of environmental polluting gases and monitoring of flammable, toxic, explosive, and harmful gases are essential for both the environmental protection and the energy generation [1]. It is essential to detect these hazardous gases and develop an efficient, low-cost, and Sufaid Shah and Shahid Hussain have contributed equally to this work. Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10854-020-02937-3) contains supplementary material, which is available to authorized users. * Shahid Hussain [email protected] * Guanjun Qiao [email protected] 1
School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China
2
State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
3
Siyuan Laboratory, Department of Physics, Jinan University, Guangzhou 510632, China
13
Vol:.(1234567890)
high-performance gas sensor, to overcome the hazardous effects of environmental polluting gases. Due to extensive developments in the synthesis of versatile morphologies of nanomaterials, it has become easy to fabricate gas sensor devices with outstanding controlled efficiencies. Therefore, the demand provokes for the selection of suitable nanomaterials with dominant surface effects, low-cost fabrication, environment-friendly, and desired sensing propertie
Data Loading...
