Mesoporous WO3 modified by Au nanoparticles for enhanced trimethylamine gas sensing properties

2021 ◽  
Author(s):  
Yunan Wang ◽  
Shendan Zhang ◽  
Chaozhu Huang ◽  
Fengdong Qu ◽  
Dong Yao ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties

Au-Doped mesoporous WO3 is prepared and it exhibited higher response to TMA gas.

scholarly journals The Effect of Noble Metals on Co Gas Sensing Properties of In2O3 Nanoparticles

2021 ◽  
Vol 11 (11) ◽  
pp. 4903
Author(s):  
JinAh Hwang ◽  
Hyunsung Jung ◽  
Hyo-Soon Shin ◽  
Dae-Sung Kim ◽  
Dong Soo Kim ◽  
...  
Keyword(s):  
Noble Metals ◽  
Au Nanoparticles ◽  
Gas Sensing ◽  
Pt Nanoparticles ◽  
Depletion Region ◽  
Gas Concentration ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
In2o3 Nanoparticles ◽  
Co Gas

Three types of In2O3 nanoparticles decorated with Au, Pd and Pt nanoparticles, respectively, were synthesized by thermal decomposition method, and the effects of metal nanoparticles on their phase, microstructure, chemical state, carrier types were investigated with XRD, SEM/TEM, and XPS. Additionally, sensing properties to CO gas, such as sensitivity, etc., were examined with sensing apparatus. Au-decorated In2O3 nanoparticles exhibited the highest sensitivity to CO gas, with S = 5.59 at a 10 ppm CO gas concentration at 50 °C compared to Pd or Pt-decorated In2O3 nanoparticles. This can be interpreted as a much higher adsorption of oxygen molecules on the In2O3 surface due to the high oxygen vacancies in the In2O3 lattice, which generates an electron depletion region in the outer layer of In2O3 to sharply increase the resistance or the spill-over effect due to Au nanoparticles on In2O3. Au nanoparticles were observed in the TEM images and confirmed by XPS analysis.

Synthesis and enhanced gas sensing properties of Au-nanoparticle decorated CdS nanowires

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 70907-70912 ◽  
Author(s):  
Xiaohui Ma ◽  
Sijia guo ◽  
Jingli Shen ◽  
Yu Chen ◽  
Chuan Chen ◽  
...  
Keyword(s):  
Au Nanoparticles ◽  
Gas Sensing ◽  
Solvothermal Method ◽  
Average Diameter ◽  
Deposition Process ◽  
Au Nanoparticle ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Cds Nanowires

CdS nanowires (NWs) with an average diameter of 30 nm were synthesized by a solvothermal method and then Au nanoparticles with a size of 10–25 nm were decorated on the surface of the as-synthesized CdS NWs through a simple deposition process.

scholarly journals Manipulation of the SnSe2 gas sensing properties via Au nanoparticles decoration

2021 ◽  
pp. 101673
Author(s):  
Duan Zhang ◽  
Xiaodie Yang ◽  
Yujian Shen ◽  
Longkun Yang ◽  
Óscar Leonardo Camargo Moreira
Keyword(s):  
Au Nanoparticles ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties

Preparation of One-dimensional Pt/SnO2 Nanofibers and NOx Gas-sensing Properties

2013 ◽  
Vol 28 (6) ◽  
pp. 584-588 ◽  
Author(s):  
Shuang XU ◽  
Ying YANG ◽  
Hong-Yuan WU ◽  
Chao JIANG ◽  
Li-Qiang JING ◽  
...  
Keyword(s):  
Gas Sensing ◽  
One Dimensional ◽  
Sensing Properties ◽  
Gas Sensing Properties

Controllable biomolecule-assisted synthesis and gas sensing properties of In 2 O 3 micro/nanostructures with double phases

2017 ◽  
Vol 239 ◽  
pp. 270-278 ◽  
Author(s):  
Wenhui Zhang ◽  
Wenchao Zhang ◽  
Bin Chen ◽  
Rong Shao ◽  
Rongfeng Guan ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties
Sign in / Sign up

Export Citation Format

Share Document