Nanostructured Pt decorated graphene and multi walled carbon nanotube based room temperature hydrogen gas sensor

Nanoscale ◽  
2009 ◽  
Vol 1 (3) ◽  
pp. 382 ◽  
Author(s):  
Adarsh Kaniyoor ◽  
R. Imran Jafri ◽  
T. Arockiadoss ◽  
S. Ramaprabhu
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas ◽  
Multi Walled Carbon Nanotube ◽  
Nanostructured Pt

Room-Temperature Hydrogen-Gas Sensor Based on Carbon Nanotube Yarn

2020 ◽  
Vol 20 (7) ◽  
pp. 4011-4014 ◽  
Author(s):  
Maeum Han ◽  
Jae Keon Kim ◽  
Junyeop Lee ◽  
Hee Kyung An ◽  
Jong Pil Yun ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas ◽  
Step Procedure ◽  
One Step ◽  
Cnt Arrays ◽  
Removal Of Impurities ◽  
Yarn Surface ◽  
Higher Sensitivity

The proposed study describes the development of a carbon nanotube (CNT)-based gas sensor capable of detecting the presence of hydrogen (H2) gas at room temperature. CNT yarn used in the proposed sensor was fabricated from synthesized CNT arrays. Subsequently, the yarn was treated by means of a simple one-step procedure, called acid treatment, to facilitate removal of impurities from the yarn surface and forming functional species. To verify the proposed sensor’s effectiveness with regard to detection of H2 gas at room temperature, acid-treated CNT and pure yarns were fabricated and tested under identical conditions. Corresponding results demonstrate that compared to the untreated CNT yarn, the acid-treated CNT yarn exhibits higher sensitivity to the presence of H2 gas at room temperature. Additionally, the acid-treated CNT yarn was observed to demonstrate excellent selectivity pertaining to H2 gas.

scholarly journals Sensing mechanism of an optimized room temperature optical hydrogen gas sensor made of zinc oxide thin films

2020 ◽  
Vol 9 (5) ◽  
pp. 10624-10634
Author(s):  
Siti Nor Aliffah Mustaffa ◽  
Nurul Assikin Ariffin ◽  
Ahmed Lateef Khalaf ◽  
Mohd. Hanif Yaacob ◽  
Nizam Tamchek ◽  
...  
Keyword(s):  
Thin Films ◽  
Zinc Oxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas ◽  
Oxide Thin Films ◽  
Sensing Mechanism

scholarly journals Ionic-liquid-assisted one-pot synthesis of Cu2O nanoparticles/multi-walled carbon nanotube nanocomposite for high-performance asymmetric supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20182-20189 ◽  
Author(s):  
Ying Lu ◽  
Jian-Long Xu ◽  
Shan Ren ◽  
Ya-Nan Zhong ◽  
Xu Gao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanotube ◽  
High Performance ◽  
Room Temperature ◽  
Synergistic Effects ◽  
Asymmetric Supercapacitors ◽  
One Pot ◽  
Multi Walled Carbon Nanotube ◽  
Cu2o Nanoparticles ◽  
Cycling Life

A one-pot room-temperature-ionic-liquid-assisted sputtering approach is designed to synthesize Cu2O/MWCNTs nanocomposite with high capacitance and long cycling life due to synergistic effects of oxygen-deficient Cu2O and conductive MWCNTs.

scholarly journals A Robust Fiber Bragg Grating Hydrogen Gas Sensor Using Platinum-Supported Silica Catalyst Film

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Marina Kurohiji ◽  
Seiji Ichiriyama ◽  
Naoki Yamasaku ◽  
Shinji Okazaki ◽  
Naoya Kasai ◽  
...  
Keyword(s):  
Fiber Bragg Grating ◽  
Gas Sensor ◽  
Temperature Change ◽  
Catalytic Combustion ◽  
Room Temperature ◽  
Precursor Solution ◽  
Hydrogen Gas ◽  
Combustion Heat ◽  
Catalyst Film ◽  
Sensor Device

A robust fiber Bragg grating (FBG) hydrogen gas sensor for reliable multipoint-leakage monitoring has been developed. The sensing mechanism is based on shifts of center wavelength of the reflection spectra due to temperature change caused by catalytic combustion heat. The sensitive film which consists of platinum-supported silica (Pt/SiO2) catalyst film was obtained using sol-gel method. The precursor solution was composed of hexachloroplatinic acid and commercially available silica precursor solution. The atom ratio of Si : Pt was fixed at 13 : 1. A small amount of this solution was dropped on the substrate and dried at room temperature. After that, the film was calcined at 500°C in air. These procedures were repeated and therefore thick hydrogen-sensitive films were obtained. The catalytic film obtained by 20-time coating on quartz glass substrate showed a temperature change 75 K upon exposure to 3 vol.% H2. For realizing robust sensor device, this catalytic film was deposited and FBG portion was directly fixed on titanium substrate. The sensor device showed good performances enough to detect hydrogen gas in the concentration range below lower explosion limit at room temperature. The enhancement of the sensitivity was attributed to not only catalytic combustion heat but also related thermal strain.

Room Temperature Detection of Hydrogen Gas Using Graphene Based Conductometric Gas Sensor

2017 ◽  
Vol 17 (5) ◽  
pp. 3449-3453 ◽  
Author(s):  
A Pavithra ◽  
R. Ajay Rakkesh ◽  
D Durgalakshmi ◽  
S Balakumar
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas ◽  
Temperature Detection

Incorporation of carbon nanotube and graphene in ZnO nanorods-based hydrogen gas sensor

2018 ◽  
Vol 44 (11) ◽  
pp. 12308-12314 ◽  
Author(s):  
Wen Chang Huang ◽  
Hsin Jie Tsai ◽  
Tien Chai Lin ◽  
Wei Chih Weng ◽  
Yu Cheng Chang ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Zno Nanorods ◽  
Hydrogen Gas

scholarly journals A room-temperature hydrogen gas sensor based on TiO2/MoS2 nanocomposite

2020 ◽  
Vol 799 ◽  
pp. 012021
Author(s):  
Cheng Zhang ◽  
Yixue Li ◽  
Qiao Sun ◽  
Weitao Lei ◽  
Yankun Tang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Room Temperature ◽  
Hydrogen Gas
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