Controlled synthesis of Pt and Co3O4 dual-functionalized In2O3 nanoassemblies for room temperature detection of carbon monoxide

2018 ◽  
Vol 42 (20) ◽  
pp. 16478-16482 ◽  
Author(s):  
Kuan-Wei Chen ◽  
Jen-Pu Liu ◽  
Yu-Shan Hsu ◽  
Chao-Heng Liu ◽  
Ying-Hao Pai ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Controlled Synthesis ◽  
Temperature Detection ◽  
Co Gas

Innovative Pt and Co3O4 nanostructure co-decorated In2O3 nanobundles have been successfully developed and demonstrated as high-performance room-temperature CO gas sensors.

High Performance CO Sensors Utilizing Sprayed Distributed Toluene-Based Gold Nanoparticles

2013 ◽  
Vol 479-480 ◽  
pp. 702-707
Author(s):  
Chun Yi Wang ◽  
Ho Cheng Lee ◽  
Yung Chen Wu ◽  
Che Hsin Lin
Keyword(s):  
Gold Nanoparticles ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Low Cost ◽  
Spray Coating ◽  
Repeated Measurements ◽  
Au Nps ◽  
Working Temperature ◽  
Co Gas

This study presents a simple and low-cost spray coating process for producing high performance CO (carbon monoxide) sensors utilizing toluene-based gold nanoparticles (Au-NPs). Thanks to the success synthesis of Au-NPs in toluene, this low surface tension organic solvent prevents Au-NPs from colligation. And therefore Au-NPs can be well dispersed on the surface of the electrodes as the sensing layer during spraying. To compare with the typical metal oxide based CO sensors that have to work at a higher working temperature of about 150~350°C, the produced sensor can work at room temperature and have a better detection limit for CO gas (5 ppm). Experimental results indicate good linear sensitivity under repeated measurements for concentration range from 5 250 ppm (R2=0.996). The repeatability is also confirmed by measuring 100 ppm CO gas, the calculated variation is less than 2.8% for six repeating measurements. The process developed in this study can be used to produce not only high performance CO gas sensors but other related gas sensors.

Selective detection of carbon monoxide (CO) gas by reduced graphene oxide (rGO) at room temperature

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 47337-47348 ◽  
Author(s):  
Dipankar Panda ◽  
Anupam Nandi ◽  
Swapan K. Datta ◽  
Hiranmay Saha ◽  
Sanhita Majumdar
Keyword(s):  
Carbon Monoxide ◽  
Graphene Oxide ◽  
Specific Surface ◽  
Gas Sensors ◽  
Room Temperature ◽  
Selective Detection ◽  
Two Dimensional ◽  
Large Specific Surface Area ◽  
Reduced Graphene ◽  
Co Gas

Graphene materials have been widely explored for fabrication of gas sensors because of their atom-thick two-dimensional conjugated structures, high conductivity and large specific surface area.

Ultraviolet light-emitting diode-assisted highly sensitive room temperature NO2 gas sensor for low-temperature solution-processed ZnO/TiO2 nanorods decorated with plasmonic Au nanoparticles

Nanoscale ◽  
2021 ◽  
Author(s):  
Soon-Hwan Kwon ◽  
Tae-Hyeon Kim ◽  
Sang-Min Kim ◽  
Semi Oh ◽  
Kyoung-Kook Kim
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Au Nanoparticles ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
No2 Gas Sensor ◽  
Highly Sensitive ◽  
Temperature Solution ◽  
Semiconducting Metal Oxides

Nanostructured semiconducting metal oxides such as SnO2, ZnO, TiO2, and CuO have been widely used to fabricate high performance gas sensors. To improve the sensitivity and stability of gas sensors,...

scholarly journals Gas Sensors Based on Mechanically Exfoliated MoS2 Nanosheets for Room-Temperature NO2 Detection

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2123 ◽  
Author(s):  
Wenli Li ◽  
Yong Zhang ◽  
Xia Long ◽  
Juexian Cao ◽  
Xin Xin ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Density Functional ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Mechanical Exfoliation ◽  
High Responsivity ◽  
Recovery Behavior ◽  
No2 Gas Sensors ◽  
No2 Detection

The unique properties of MoS2 nanosheets make them a promising candidate for high-performance room temperature gas detection. Herein, few-layer MoS2 nanosheets (FLMN) prepared via mechanical exfoliation are coated on a substrate with interdigital electrodes for room-temperature NO2 detection. Interestingly, compared with other NO2 gas sensors based on MoS2, FLMN gas sensors exhibit high responsivity for room-temperature NO2 detection, and NO2 is easily desorbed from the sensor surface with an ultrafast recovery behavior, with recovery times around 2 s. The high responsivity is related to the fact that the adsorbed NO2 can affect the electron states within the entire material, which is attributed to the very small thickness of the MoS2 nanosheets. First-principles calculations were carried out based on the density functional theory (DFT) to verify that the ultrafast recovery behavior arises from the weak van der Waals binding between NO2 and the MoS2 surface. Our work suggests that FLMN prepared via mechanical exfoliation have a great potential for fabricating high-performance NO2 gas sensors.

Palladium Nanosheet-Based Dual Gas Sensors for Sensitive Room-Temperature Hydrogen and Carbon Monoxide Detection

ACS Sensors ◽  
2022 ◽  
Author(s):  
Abhishek Kumar ◽  
Yaoli Zhao ◽  
Mohammad Moein Mohammadi ◽  
Jun Liu ◽  
Thomas Thundat ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Gas Sensors ◽  
Room Temperature ◽  
Carbon Monoxide Detection

scholarly journals Twofold Porosity and Surface Functionalization Effect on Pt–Porous GaN for High-Performance H2-Gas Sensors at Room Temperature

ACS Omega ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 1678-1684 ◽  
Author(s):  
Muhammad Shafa ◽  
Davide Priante ◽  
Rami T. ElAfandy ◽  
Mohamed Nejib Hedhili ◽  
Saleh T. Mahmoud ◽  
...  
Keyword(s):  
Surface Functionalization ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature

Two-dimensional MoSe2 nanosheets via liquid-phase exfoliation for high-performance room temperature NO2 gas sensors

2019 ◽  
Vol 30 (44) ◽  
pp. 445503 ◽  
Author(s):  
Xi Chen ◽  
Xinwei Chen ◽  
Yutong Han ◽  
Chen Su ◽  
Min Zeng ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Two Dimensional ◽  
Liquid Phase Exfoliation ◽  
No2 Gas Sensors

scholarly journals Flexible fabric gas sensors based on PANI/WO3 p−n heterojunction for high performance NH3 detection at room temperature

2020 ◽  
Vol 63 (10) ◽  
pp. 2028-2039
Author(s):  
Meng He ◽  
Lili Xie ◽  
Guifang Luo ◽  
Zhanhong Li ◽  
James Wright ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Room Temperature

Realization of Surface Acoustic Wave (SAW) and Semiconductor Gas Sensors for Room Temperature Detection of NO2 Gas

2013 ◽  
Vol 148 (1) ◽  
pp. 90-95 ◽  
Author(s):  
Anjali Sharma ◽  
V. Bhasker Raj ◽  
Kajal Jindal ◽  
Monika Tomar ◽  
Vinay Gupta
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gas Sensors ◽  
Room Temperature ◽  
Temperature Detection ◽  
Semiconductor Gas Sensors

Heterostructured Co3O4/PEI–CNTs composite: fabrication, characterization and CO gas sensors at room temperature

2014 ◽  
Vol 2 (13) ◽  
pp. 4558-4565 ◽  
Author(s):  
Lifang Dang ◽  
Guo Zhang ◽  
Kan Kan ◽  
Yufei Lin ◽  
Fuquan Bai ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Room Temperature ◽  
Sensing Properties ◽  
Composite Fabrication ◽  
Chemical Approach ◽  
Co Detection ◽  
Composite Sensor ◽  
Co Gas

A noncovalent chemical approach is developed for hybridizing PEI–CNTs with Co3O4 nanoparticles. The Co3O4/PEI–CNTs composite sensor exhibits excellent sensing properties at room temperature to CO detection.

Sign in / Sign up

Export Citation Format

Share Document