Templating synthesis of ZnO hollow nanospheres loaded with Au nanoparticles and their enhanced gas sensing properties

A highly ordered 5,10,15,20-tetraphenylporphyrin doped poly(methyl methacrylate) nano-array was developed via a facile self-templating synthesis method, which improves the sensitivity of the HCl gas sensor to the ppm-level.

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Hydrothermal synthesis, characterization and gas sensing properties of novel Cu 2 O open hollow nanospheres

Ceramics International ◽

10.1016/j.ceramint.2016.12.131 ◽

2017 ◽

Vol 43 (5) ◽

pp. 4721-4724 ◽

Cited By ~ 9

Author(s):

Shixiu Cao ◽

Tao Han ◽

Lingling Peng ◽

Cong Zhao ◽

Jiao Wang

Keyword(s):

Hydrothermal Synthesis ◽

Gas Sensing ◽

Hollow Nanospheres ◽

Sensing Properties ◽

Gas Sensing Properties

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

Applied Sciences ◽

10.3390/app11114903 ◽

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.

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Hydrogen sulfide gas sensing properties of metal organic framework-derived α-Fe2O3 hollow nanospheres decorated with MoSe2 nanoflowers

Sensors and Actuators B Chemical ◽

10.1016/j.snb.2021.130221 ◽

2021 ◽

pp. 130221

Author(s):

Wenjing Pan ◽

Yong Zhang ◽

Sujing Yu ◽

Xiaohua Liu ◽

Dongzhi Zhang

Keyword(s):

Hydrogen Sulfide ◽

Gas Sensing ◽

Metal Organic Framework ◽

Hollow Nanospheres ◽

Sensing Properties ◽

Gas Sensing Properties ◽

Metal Organic ◽

Organic Framework

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

RSC Advances ◽

10.1039/c6ra10963b ◽

2016 ◽

Vol 6 (75) ◽

pp. 70907-70912 ◽

Cited By ~ 12

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.

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