Layered SnSe2 microflakes and SnSe2/SnO2 heterojunctions for low-temperature chemiresistive-type gas sensing

2020 ◽  
Vol 8 (44) ◽  
pp. 15804-15815
Author(s):  
Xinyu Li ◽  
Wei Liu ◽  
Baoyu Huang ◽  
Hang Liu ◽  
Xiaogan Li
Keyword(s):  
Low Temperature ◽  
Thermal Oxidation ◽  
Gas Sensing ◽  
High Response ◽  
Working Temperature ◽  
Excellent Selectivity

The SnSe2/SnO2 heterojunctions fabricated through in situ thermal oxidation display high response and excellent selectivity to NO2 at low working temperature.

Porous Iron Molybdate Nanorods: In situ Diffusion Synthesis and Low-Temperature H2S Gas Sensing

2013 ◽  
Vol 5 (8) ◽  
pp. 3267-3274 ◽  
Author(s):  
Yu-Jin Chen ◽  
Xin-Ming Gao ◽  
Xin-Peng Di ◽  
Qiu-Yun Ouyang ◽  
Peng Gao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Gas Sensing ◽  
Porous Iron ◽  
Iron Molybdate ◽  
In Situ Diffusion

Rational design and in situ growth of SnO2/CMF composites: insightful understanding of the formaldehyde gas sensing mechanism and enhanced gas sensing properties

2020 ◽  
Vol 8 (36) ◽  
pp. 12418-12426 ◽  
Author(s):  
Yuxi Li ◽  
Na Luo ◽  
Wenshuang Zhang ◽  
Qingmin Hu ◽  
Xiaohong Wang ◽  
...  
Keyword(s):  
Rational Design ◽  
Gas Sensing ◽  
In Situ Growth ◽  
Sensing Properties ◽  
Sensing Mechanism ◽  
Gas Sensing Properties ◽  
And Performance ◽  
Excellent Selectivity

In this paper, 3D porous hierarchical structured SnO2/CMF showed excellent selectivity and sensitivity to HCHO. In addition, the sensing mechanism and performance of SnO2/CMF were studied in depth.

Preparation of reduced graphene oxide/Co3O4 composites and sensing performance to toluene at low temperature

RSC Advances ◽  
2016 ◽  
Vol 6 (65) ◽  
pp. 60109-60116 ◽  
Author(s):  
Shouli Bai ◽  
Long Du ◽  
Jianhua Sun ◽  
Ruixian Luo ◽  
Dianqing Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
High Response ◽  
Reduced Graphene ◽  
Excellent Selectivity ◽  
Sensing Performance

The rGO/Co3O4 composite not only exhibits the high response to 5 ppm toluene but also displays excellent selectivity to some of VOCs.

Yolk–shell (Cu,Zn)Fe2O4 ferrite nano-microspheres with highly selective triethylamine gas-sensing properties

2020 ◽  
Vol 49 (41) ◽  
pp. 14475-14482 ◽  
Author(s):  
Jing Yang ◽  
Xianliang Li ◽  
Junbiao Wu ◽  
Yide Han ◽  
Zhuopeng Wang ◽  
...  
Keyword(s):  
Gas Sensing ◽  
High Response ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Excellent Selectivity

Yolk-shell (Cu,Zn)Fe2O4 nano-microspheres synthesized by a two-step strategy possess high response to triethylamine with excellent selectivity.

Low temperature formation of higher-k cubic phase HfO2 by atomic layer deposition on GeOx/Ge structures fabricated by in-situ thermal oxidation

2016 ◽  
Vol 108 (5) ◽  
pp. 052903 ◽  
Author(s):  
R. Zhang ◽  
P.-C. Huang ◽  
N. Taoka ◽  
M. Yokoyama ◽  
M. Takenaka ◽  
...  
Keyword(s):  
Low Temperature ◽  
Atomic Layer Deposition ◽  
Thermal Oxidation ◽  
Atomic Layer ◽  
Cubic Phase ◽  
Layer Deposition

High response and selectivity of platinum modified tin oxide porous spheres for nitrogen dioxide gas sensing at low temperature

2018 ◽  
Vol 257 ◽  
pp. 427-435 ◽  
Author(s):  
Wenjing Du ◽  
Nannan Wu ◽  
Zhou Wang ◽  
Jiurong Liu ◽  
Dongmei Xu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Nitrogen Dioxide ◽  
Tin Oxide ◽  
Gas Sensing ◽  
High Response ◽  
Porous Spheres

NANOWIRE OXIDE FILM FOR LOW-TEMPERATURE ALUMINIZED 20 STEEL BY THERMAL OXIDATION

2021 ◽  
pp. 2150026
Author(s):  
MIN HUANG ◽  
YONG-CHUAN DUAN ◽  
YU WANG ◽  
YI-CHEN CAI ◽  
LIU-YI HU
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Low Temperature ◽  
Thermal Oxidation ◽  
Steel Substrate ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
X Ray

An aluminized coating for low-carbon steel with good corrosion and wear resistance was first prepared through low-temperature pack aluminization. Then, the low-temperature-aluminized steel substrate was subjected to thermal oxidation in air. The phase composition, surface morphology, roughness, and elemental distribution of the aluminized carbon steel both before and after thermal oxidation were analyzed through X-ray diffraction spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. The corrosion resistance and wear resistance of the original carbon steel substrate, aluminized carbon steel, and oxidized carbon steel were tested. Results showed that nanowires composed of iron oxide and alumina formed in situ on the top layer of the aluminized carbon steel. The corrosion resistance and wear resistance of the low-carbon steel with the nanowire oxide coating were better than those of the original carbon steel and aluminized carbon steel because the in-situ nanowire oxide film improved the density of the aluminized coating.

In situ gold nanoparticle-decorated three-dimensional tin dioxide nanostructures for sensitive and selective gas-sensing detection of volatile organic compounds

2017 ◽  
Vol 5 (25) ◽  
pp. 6193-6201 ◽  
Author(s):  
Tian-Li Han ◽  
Yu-Teng Wan ◽  
Jin-Jin Li ◽  
Hui-Gang Zhang ◽  
Jin-Huai Liu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Volatile Organic Compounds ◽  
Gold Nanoparticle ◽  
Organic Compounds ◽  
Tin Dioxide ◽  
Gas Sensing ◽  
Three Dimensional ◽  
High Response ◽  
Volatile Organic

A three-dimensional tin dioxide nanostructure in situ-decorated with gold nanoparticles was presented, which exhibited high response and selectivity towards volatile organic compounds.

In situ Tensile Experiments at Low Temperatures on Niobium Single Crystals by H.V.E.M.

1975 ◽  
Vol 33 ◽  
pp. 58-59
Author(s):  
F. H. Louchet ◽  
L. P. Kubin
Keyword(s):  
Electron Microscope ◽  
Transition Temperature ◽  
Low Temperature ◽  
Slip System ◽  
Low Temperatures ◽  
Tensile Axis ◽  
Image Intensifier ◽  
Screw Dislocations ◽  
Source Operation

Experiments have been carried out on the 3 MeV electron microscope in Toulouse. The low temperature straining holder has been previously described Images given by an image intensifier are recorded on magnetic tape.The microtensile niobium samples are cut in a plane with the two operative slip directions [111] and lying in the foil plane. The tensile axis is near [011].Our results concern:- The transition temperature of niobium near 220 K: at this temperature and below an increasing difference appears between the mobilities of the screw and edge portions of dislocations loops. Source operation and interactions between screw dislocations of different slip system have been recorded.

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