Ultra sensitive NO 2 gas detection using the reduced graphene oxide coated etched fiber Bragg gratings

2016 ◽  
Vol 223 ◽  
pp. 481-486 ◽  
Author(s):  
S Sridevi. ◽  
K.S. Vasu ◽  
Navakanta Bhat ◽  
S. Asokan ◽  
A.K. Sood
2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Sweejiang Yoo ◽  
Xin Li ◽  
Yuan Wu ◽  
Weihua Liu ◽  
Xiaoli Wang ◽  
...  

Reduced graphene oxide (rGO) based chemiresistor gas sensor has received much attention in gas sensing for high sensitivity, room temperature operation, and reversible. Here, for the first time, we present a promising chemiresistor for ammonia gas detection based on tannic acid (TA) functionalized and reduced graphene oxide (rGOTA functionalized). Green reductant of TA plays a major role in both reducing process and enhancing the gas sensing properties ofrGOTA functionalized. Our results showrGOTA functionalizedonly selective to ammonia with excellent respond, recovery, respond time, and recovery times.rGOTA functionalizedelectrical resistance decreases upon exposure to NH3where we postulated that it is due to n-doping by TA and charge transfer betweenrGOTA functionalizedand NH3through hydrogen bonding. Furthermore,rGOTA functionalizedhinders the needs for stimulus for both recovery and respond. The combination of greener sensing material and simplicity in overall sensor design provides a new sight for green reductant approach of rGO based chemiresistor gas sensor.


2016 ◽  
Vol 26 (24) ◽  
pp. 4329-4338 ◽  
Author(s):  
Le Thai Duy ◽  
Tran Quang Trung ◽  
Vinh Quang Dang ◽  
Byeong-Ung Hwang ◽  
Saqib Siddiqui ◽  
...  

2015 ◽  
Vol 221 ◽  
pp. 1499-1507 ◽  
Author(s):  
Zain Ul Abideen ◽  
Akash Katoch ◽  
Jae-Hun Kim ◽  
Yong Jung Kwon ◽  
Hyoun Woo Kim ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 46930-46933 ◽  
Author(s):  
Su Zhang ◽  
Di Zhang ◽  
Vitaly I. Sysoev ◽  
Olga V. Sedelnikova ◽  
Igor P. Asanov ◽  
...  

Highly wrinkled reduced graphene oxide nanosheets were prepared by chemical exfoliation of ball-milled graphite powder. This material showed high sensitivity and simple recovery ability for NH3 gas detection.


2016 ◽  
Vol 7 (1) ◽  
pp. 19 ◽  
Author(s):  
Lingfeng Jin ◽  
Weigen Chen ◽  
He Zhang ◽  
Gongwei Xiao ◽  
Chutian Yu ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (80) ◽  
pp. 42546-42553 ◽  
Author(s):  
Yajie Yang ◽  
Xiaojie Yang ◽  
Wenyao Yang ◽  
Shibin Li ◽  
Jianhua Xu ◽  
...  

Porous conducting polymer and reduced graphene oxide (GO) composites was prepared as sensing materials for enhanced sensitivity and selectivity.


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