Effect of aging time on gas sensing properties and photocatalytic efficiency of dye on In-Sn co-doped ZnO nanoparticles

2017 ◽  
Vol 88 ◽  
pp. 14-22 ◽  
Author(s):  
Sonik Bhatia ◽  
Neha Verma ◽  
R.K. Bedi
Keyword(s):  
Aging Time ◽  
Zno Nanoparticles ◽  
Gas Sensing ◽  
Photocatalytic Efficiency ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Doped Zno ◽  
Co Doped

scholarly journals Hydrogen Sensing Properties of Co-Doped ZnO Nanoparticles

Chemosensors ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 61 ◽  
Author(s):  
Fatemeh Moosavi ◽  
Mohammad Ebrahim Bahrololoom ◽  
Ramin Kamjou ◽  
Ali Mirzaei ◽  
Salvatore Gianluca Leonardi ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
High Performance ◽  
Gas Sensing ◽  
Sol Gel ◽  
Breath Hydrogen ◽  
Zno Nps ◽  
Sensing Properties ◽  
Co Doping ◽  
Doped Zno ◽  
Co Doped

In this study, the gas sensing properties of Co-doped ZnO nanoparticles (Co-ZnO NPs) synthesized via a simple sol-gel method are reported. The microstructure and morphology of the synthesized Co-ZnO NPs were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM), respectively. Co-ZnO NPs were then used for developing a conductometric gas sensor for the detection, at mild temperature, of low concentration of hydrogen (H2) in air. To evaluate the selectivity of the sensor, the sensing behavior toward some VOCs such as ethanol and acetone, which represent the most important interferents for breath hydrogen analysis, was also investigated in detail. Results reported demonstrated better selectivity toward hydrogen of the Co-ZnO NPs sensor when compared to pure ZnO. The main factors contributing to this behavior, i.e., the transition from n-type behavior of pristine ZnO to p-type behavior upon Co-doping, the modification of oxygen vacancies and acid-base characteristics have been considered. Hence, this study highlights the importance of Co doping of ZnO to realize a high performance breath hydrogen sensor.

Facile fabrication and superior gas sensing properties of spongelike Co-doped ZnO microspheres for ethanol sensors

2018 ◽  
Vol 44 (14) ◽  
pp. 16773-16780 ◽  
Author(s):  
Jingjing Xu ◽  
Shengjuan Li ◽  
Lei Li ◽  
Leyi Chen ◽  
Yufang Zhu
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Facile Fabrication ◽  
Doped Zno ◽  
Co Doped

Gas sensing properties of Cd-doped ZnO nanofibers synthesized by the electrospinning method

2014 ◽  
Vol 2 (39) ◽  
pp. 16697-16706 ◽  
Author(s):  
Shouli Bai ◽  
Song Chen ◽  
Yangbo Zhao ◽  
Teng Guo ◽  
Ruixian Luo ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Xps Analysis ◽  
Sensing Properties ◽  
Cd Doping ◽  
Electrospinning Method ◽  
Gas Sensing Properties ◽  
Zno Nanofibers ◽  
Doped Zno

The response of ZnO nanofibers is significantly enhanced via Cd doping, which can be attributed to the change of defects in ZnO and has been confirmed by PL and XPS analysis.

Correlating the magnetism and gas sensing properties of Mn-doped ZnO films enhanced by UV irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26227-26238 ◽  
Author(s):  
David E. Motaung ◽  
Ioannis Kortidis ◽  
Gugu H. Mhlongo ◽  
Mart-Mari Duvenhage ◽  
Hendrik. C. Swart ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Gas Sensing ◽  
Zno Films ◽  
Schematic Diagram ◽  
Sensing Properties ◽  
Tof Sims ◽  
Gas Sensing Properties ◽  
Doped Zno ◽  
Mn Concentration ◽  
Mn Doped

Schematic diagram showing the 2D TOF SIMS overlays of Si+, Mn+and Zn+. The insert corresponds to the correlation between the sensing response and FMR signal as a function of Mn concentration when exposed to various gases.

Preparation of ZnO nanoparticles by combustion method and their gas sensing properties

2016 ◽  
Vol 12 (1) ◽  
pp. 24-31 ◽  
Author(s):  
Xiaoxue Lian ◽  
Yan Li ◽  
Tan Lv ◽  
Yunling Zou ◽  
Dongmin An ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Gas Sensing ◽  
Combustion Method ◽  
Sensing Properties ◽  
Gas Sensing Properties
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