NiO hollow nanospheres with different surface by a bubble-template approach and its gas sensing
- 5 Downloads
In this work, we report on the use of bubbles as a template, can adopt a slight hydrothermal method and subsequent calcination synthesized NiO hollow sphere successfully, and then control the reaction time and temperature conditions to form two different NiO surface. It was found that the fluffy structure with pores and the flower-like structure with nanometer plate. The results show that NiO with hollow sphere has excellent performance in gas sensing test and its special surface has high specific surface area, which has good response sensitivity to 400 ppm C2H5OH. So, it is a promising sensing material for detection of C2H5OH. In addition, based on the experimental results, we also proposed that the evolution mechanism about NiO hollow spheres and the gas sensitive mechanism on the surface of microspheres.
This work is funded by National Undergraduate Training Program for Innovation and Entrepreneurship (No. 201710611044).
- 5.C. Wang, W. Zeng, New insights into multi-hierarchical nanostructures with size-controllable blocking units for their gas sensing performance. J. Mater. Sci: Mater. Electron. 28, 10847–10852 (2017)Google Scholar
- 7.M. Salavati-Niasari, F. Soofivand, A. Sobhani-Nasab, M. Shakouri-Arani, M. Hamadanian, S. Bagheri, Facile synthesis and characterization of CdTiO3 nanoparticles by Pechini sol–gel method. J. Mater. Sci.: Mater. Electron. 20, 14965–14973 (2017)Google Scholar
- 9.A. Ziarati, A. Sobhani-Nasab, M. Rahimi-Nasrabadi, M.R. Ganjali, A. Badiei, Sonication method synergism with rare earth based nanocatalyst: preparation of NiFe2–xEuxO4 nanostructures and its catalytic applications for the synthesis of benzimidazoles, benzoxazoles, and benzothiazoles under ultrasonic irradiation. J. Rare Earths. 4, 374–381 (2017)CrossRefGoogle Scholar
- 10.S.S. Hosseinpour-Mashkani, A. Sobhani-Nasab, Investigation the effect of temperature and polymeric capping agents on the size and photocatalytic properties of NdVO4 nanoparticles. J. Mater. Sci.: Mater. Electron. 21, 16459–16466 (2017)Google Scholar
- 14.Y.C. Chen, F.C. Zheng, Y.L. Min, T. Wang, Y.G. Zhang, Y.X. Wang, Facile procedure to synthesize highly crystalline Ag/NiO nanocomposite microspheres and their photocatalytic activity. J. Mater. Sci.: Mater. Electron. 23, 1592–1598 (2012)Google Scholar
- 15.F. Meng, P. Zhong, Z. Li, X. Cui, H. Zheng, Surface structure and catalytic performance of Ni–Fe catalyst for low-temperature CO hydrogenation. J. Chem. 2014, 1–7 (2014)Google Scholar
- 16.Z.G. An, J.J. Zhang, Silicate glass/Ni-NiO double shell composite hollow microspheres: fast combustion synthesis and electromagnetic properties. J. Mater. Res. 93, 230–237 (2017)Google Scholar
- 18.C. Liu, L.P. Zhao, B.Q. Wang, P. Sun, Q.J. Wang, Y. Gao, X.S. Liang, T. Zhang, G.Y. Lu, Acetone gas sensor based on NiO/ZnO hollow spheres: fast response and recovery, and low (ppb) detection limit. J. Inter. Sci. 495, 207–215 (2017)Google Scholar
- 31.C.Y. Cao, W. Guo, Z.M. Cui, W.G. Cong, W. Cai, Microwave-assisted gas/liquid interfacial synthesis of flowerlike NiO hollow nanosphere precursors and their application as supercapacitor electrodes. J. Mater. Chem. 21(2011), 3204–3209Google Scholar
- 34.J.Y. Zhang, Q.H. Yang, Y.Z. Song, et al., Preparation of NiO nanosheets and porous nanosheets self-assembled hollow microspheres by non-template hydrothermal method and their magnetic properties. Acta Chim. Sinica. 65, 2069–2075 (2007)Google Scholar