Carbon microsphere-templated synthesis of ZnCo2O4 hollow spheres functionalized with Ag nanoparticles for sub-ppm-level acetone gas detection

2020 ◽  
Vol 46 (10) ◽  
pp. 15176-15182 ◽  
Author(s):  
Dongzhi Zhang ◽  
Yingbo Jin ◽  
Haonan Chen ◽  
Yuwei Luo ◽  
Yong Zhang
Keyword(s):  
Ag Nanoparticles ◽  
Hollow Spheres ◽  
Gas Detection ◽  
Templated Synthesis ◽  
Carbon Microsphere ◽  
Acetone Gas Detection ◽  
Ppm Level

scholarly journals Performance Analysis, Modelling, and Development of a Signal Conditioning Unit of N-Type Metal Oxide Gas Sensor for Acetone Gas Detection.

2021 ◽  
Author(s):  
ARUN K ◽  
LEKSHMI M S ◽  
SUJA K J
Keyword(s):  
Performance Analysis ◽  
Metal Oxide ◽  
Rate Of Change ◽  
Gas Detection ◽  
Signal Conditioning ◽  
Gas Concentration ◽  
Sensing Material ◽  
Acetone Gas Detection ◽  
Signal Conditioning Circuit ◽  
Conditioning Circuit

Abstract Metal oxide semiconductors have been widely used in the eld of gas sensor study. Various researches are being done to improve the sensitivity of the sensing material for applications like breath analyzers. In this work, a theoretical investigation and analysis of the n- type metal oxide for Acetone gas detection are carried out. The rate of change of resistance of the sensing material with respect to the change in the concentration of the target gas is analyzed. Acetone being a reducing gas the resistance was found to decrease for n-type material. The simulations were done using COMSOL Multiphysics and results showed that the resistance of the sensing layer varies with the concentration of the target gas. Also, the performance analysis of sensors has been compared with the experimental results. Further, we have also derived a mathematical expression connecting the relationship between the concentration of gas and the rate of change of resistance. The resistance change is observed to be proportional to the target gas concentration. A signal conditioning circuit was also designed for providing a user-friendly interface for monitoring the gas concentration. The simulation of the signal conditioning circuit was done using Proteus Design Suite. This work will aid researchers to define and predict the behaviour of gas sensors.

Hollow spheres of CoCr2O4–Cr2O3 mixed oxides with nanoscale heterojunctions for exclusive detection of indoor xylene

2018 ◽  
Vol 6 (40) ◽  
pp. 10767-10774 ◽  
Author(s):  
Bo-Young Kim ◽  
Ji-Won Yoon ◽  
Kyeorei Lim ◽  
Sung Hyun Park ◽  
Ji-Wook Yoon ◽  
...  
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Catalytic Effect ◽  
Mixed Oxides ◽  
Hollow Spheres ◽  
Volatile Organic ◽  
Ppm Level

Ultrahigh selectivity and response to sub-ppm-level of p-xylene was achieved using CoCr2O4–Cr2O3 spheres. The unique catalytic effect and nanoscale heterojunction of CoCr2O4 and Cr2O3 provide a strategy to design high performance volatile organic compounds sensors for monitoring air quality.

A novel CeO2 Hollow-Shell sensor constructed for high sensitivity of acetone gas detection

2022 ◽  
Vol 571 ◽  
pp. 151337
Author(s):  
Lin Lyu ◽  
Quan Xie ◽  
Yinye Yang ◽  
Rongrong Wang ◽  
Weifu Cen ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Gas Detection ◽  
Hollow Shell ◽  
Acetone Gas Detection

Ag nanoparticles-modified Fe2O3@MoS2 core-shell micro/nanocomposites for high-performance NO2 gas detection at low temperature

2020 ◽  
Vol 829 ◽  
pp. 154471 ◽  
Author(s):  
Mingli Yin ◽  
Yaoting Wang ◽  
Lingming Yu ◽  
Hongjun Wang ◽  
Yuanyuan Zhu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ag Nanoparticles ◽  
High Performance ◽  
Gas Detection ◽  
Core Shell

Advances in chemiresistive sensors for acetone gas detection

2019 ◽  
Vol 103 ◽  
pp. 104616 ◽  
Author(s):  
Aainaa Aqilah Baharuddin ◽  
Bee Chin Ang ◽  
A.S.M.A. Haseeb ◽  
Yung Cheng Wong ◽  
Yew Hoong Wong
Keyword(s):  
Gas Detection ◽  
Acetone Gas Detection

scholarly journals Laser Calorimetry Spectroscopy for ppm-level Dissolved Gas Detection and Analysis

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Nagapriya K. S. ◽  
Shashank Sinha ◽  
Prashanth R. ◽  
Samhitha Poonacha ◽  
Gunaranjan Chaudhry ◽  
...  
Keyword(s):  
Gas Detection ◽  
Dissolved Gas ◽  
Ppm Level ◽  
Laser Calorimetry

scholarly journals MP-55 Micro thermoelectric gas sensor for ppm level gas detection

2011 ◽  
Vol 2011.3 (0) ◽  
pp. 177-178
Author(s):  
Daisuke Nagai ◽  
Takaomi Nakashima ◽  
Woosuck Shin ◽  
Maiko Nishibori ◽  
Toshio Itoh ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Gas Detection ◽  
Ppm Level
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