The effect of noble metal (Au, Pd and Pt) nanoparticles on the gas sensing performance of SnO2-based sensors: a case study on the {221} high-index faceted SnO2octahedra

CrystEngComm ◽  
2015 ◽  
Vol 17 (33) ◽  
pp. 6308-6313 ◽  
Author(s):  
Chang Liu ◽  
Qin Kuang ◽  
Zhaoxiong Xie ◽  
Lansun Zheng
Keyword(s):  
Noble Metal ◽  
Gas Sensing ◽  
Pt Nanoparticles ◽  
High Index ◽  
Sensing Performance

Adsorption of the Gas Molecules (NH3, C2H6O, C3H6O, CO, H2S) on noble metal (Ag, Au, Pt, Pd, Ru)–Doped MoSe2 Monolayer: A First-Principles Study

2021 ◽  
Author(s):  
Lanjuan Zhou ◽  
Sujing Yu ◽  
Yan Yang ◽  
Qi Li ◽  
Tingting Li ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Noble Metal ◽  
First Principles ◽  
Density Functional ◽  
Noble Metals ◽  
Gas Sensing ◽  
Functional Theory ◽  
First Principles Study ◽  
Gas Molecules ◽  
Sensing Performance

In this paper, the effects of five noble metals (Au, Pt, Pd, Ag, Ru) doped MoSe2 on improving gas sensing performance were predicted through density functional theory (DFT) based on...

Pt Nanoparticles Sensitized Ordered Mesoporous WO 3 Semiconductor: Gas Sensing Performance and Mechanism Study

2017 ◽  
Vol 28 (6) ◽  
pp. 1705268 ◽  
Author(s):  
Junhao Ma ◽  
Yuan Ren ◽  
Xinran Zhou ◽  
Liangliang Liu ◽  
Yongheng Zhu ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Pt Nanoparticles ◽  
Mechanism Study ◽  
Ordered Mesoporous ◽  
Performance And Mechanism ◽  
Sensing Performance

A General and Straightforward Route to Noble Metal‐Decorated Mesoporous Transition‐Metal Oxides with Enhanced Gas Sensing Performance

Small ◽  
2019 ◽  
Vol 15 (46) ◽  
pp. 1904240 ◽  
Author(s):  
Junhao Ma ◽  
Xingyu Xiao ◽  
Yidong Zou ◽  
Yuan Ren ◽  
Xinran Zhou ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Noble Metal ◽  
Transition Metal Oxides ◽  
Gas Sensing ◽  
Sensing Performance

scholarly journals Preparation and Photocatalytic Performance for Degradation of Rhodamine B of AgPt/Bi4Ti3O12 Composites

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2206
Author(s):  
Gaoqian Yuan ◽  
Gen Zhang ◽  
Kezhuo Li ◽  
Faliang Li ◽  
Yunbo Cao ◽  
...  
Keyword(s):  
Visible Light ◽  
Noble Metal ◽  
Rhodamine B ◽  
Photocatalytic Performance ◽  
Bimetallic Nanoparticles ◽  
Resonance Effect ◽  
Visible Region ◽  
Photogenerated Electron ◽  
Pt Nanoparticles ◽  
Electron Hole

Loading a noble metal on Bi4Ti3O12 could enable the formation of the Schottky barrier at the interface between the former and the latter, which causes electrons to be trapped and inhibits the recombination of photoelectrons and photoholes. In this paper, AgPt/Bi4Ti3O12 composite photocatalysts were prepared using the photoreduction method, and the effects of the type and content of noble metal on the photocatalytic performance of the catalysts were investigated. The photocatalytic degradation of rhodamine B (RhB) showed that the loading of AgPt bimetallic nanoparticles significantly improved the catalytic performance of Bi4Ti3O12. When 0.10 wt% noble metal was loaded, the degradation rate for RhB of Ag0.7Pt0.3/Bi4Ti3O12 was 0.027 min−1, which was respectively about 2, 1.7 and 3.7 times as that of Ag/Bi4Ti3O12, Pt/Bi3Ti4O12 and Bi4Ti3O12. The reasons may be attributed as follows: (i) the utilization of visible light was enhanced due to the surface plasmon resonance effect of Ag and Pt in the visible region; (ii) Ag nanoparticles mainly acted as electron acceptors to restrain the recombination of photogenerated electron-hole pairs under visible light irradiation; and (iii) Pt nanoparticles acted as electron cocatalysts to further suppress the recombination of photogenerated electron-hole pairs. The photocatalytic performance of Ag0.7Pt0.3/Bi4Ti3O12 was superior to that of Ag/Bi4Ti3O12 and Pt/Bi3Ti4O12 owing to the synergistic effect between Ag and Pt nanoparticles.

scholarly journals Mesoporous titanium niobium nitrides supported Pt nanoparticles for highly selective and sensitive detection of formaldehyde

2021 ◽  
Author(s):  
Chaozhu Huang ◽  
Samira Adimi ◽  
Dongliang Liu ◽  
Haichuan Guo ◽  
Tiju Thomas ◽  
...  
Keyword(s):  
Proton Exchange Membrane ◽  
Gas Sensing ◽  
Pt Nanoparticles ◽  
Proton Exchange ◽  
The Poor ◽  
Supported Platinum ◽  
Commercial Carbon ◽  
Niobium Nitrides ◽  
Exchange Membrane ◽  
Gas Sensing Device

Proton exchange membrane fuel cell gas sensor is a promising and novel gas sensing device. However, the poor sensitivity and strong cross sensitivity of commercial carbon-supported-platinum (Pt/C) remain obstacles to...

Improved sensing performance of WO3 nanoparticles decorated with Ag and Pt nanoparticles

Rare Metals ◽  
2021 ◽  
Author(s):  
Dong-Liang Feng ◽  
Zheng-You Zhu ◽  
Ling-Ling Du ◽  
Xia-Xia Xing ◽  
Chen Wang ◽  
...  
Keyword(s):  
Pt Nanoparticles ◽  
Sensing Performance

Enhancement of nitride-gas sensing performance of SiC7 monolayer induced by external electric field

Vacuum ◽  
2021 ◽  
pp. 110393
Author(s):  
Zijia Zhao ◽  
Yongliang Yong ◽  
Ruilin Gao ◽  
Song Hu ◽  
Qingxiao Zhou ◽  
...  
Keyword(s):  
Electric Field ◽  
External Electric Field ◽  
Gas Sensing ◽  
Sensing Performance
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