scholarly journals Graphene Loading with Polypyrrole Nanoparticles for Trace-Level Detection of Ammonia at Room Temperature

2021 ◽  
Author(s):  
Juan Casanova-Chafer ◽  
Polona Umek ◽  
Selene Acosta ◽  
Carla Bittencourt ◽  
Eduard Llobet
Keyword(s):  
Room Temperature ◽  
Trace Level ◽  
Polypyrrole Nanoparticles

Anatase porous titania nanosheets for resonant-gravimetric detection of ppb-level NO2 at room-temperature

The Analyst ◽  
2021 ◽  
Author(s):  
Jialin Yang ◽  
Ding Wang ◽  
Ming Li ◽  
Haitao Yu ◽  
Pengcheng Xu ◽  
...  
Keyword(s):  
Public Health ◽  
Environmental Protection ◽  
Room Temperature ◽  
Trace Level ◽  
Porous Titania

The trace-level detection to harmful NO2 gas at room-temperature is very important for environmental protection and public health. This paper reports the resonant-gravimetric detection of ppb-level NO2 at room-temperature using...

scholarly journals A Novel Trace-Level Ammonia Gas Sensing Based on Flexible PAni-CoFe2O4 Nanocomposite Film at Room Temperature

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3077
Author(s):  
Rima D. Alharthy ◽  
Ahmed Saleh
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Oxidative Polymerization ◽  
Portable Devices ◽  
Trace Level ◽  
Humidity Effect ◽  
Sensor Performance ◽  
Wearable Electronic ◽  
Relative Humidity Effect

In this study, we developed a new chemi-resistive, flexible and selective ammonia (NH3) gas sensor. The sensor was prepared by depositing thin film of polyaniline-cobalt ferrite (PAni-CoFe2O4) nanocomposite on flexible polyethylene terephthalate (PET) through an in situ chemical oxidative polymerization method. The prepared PAni-CoFe2O4 nanocomposite and flexible PET-PAni-CoFe2O4 sensor were evaluated for their thermal stability, surface morphology and materials composition. The response to NH3 gas of the developed sensor was examined thoroughly in the range of 1–50 ppm at room temperature. The sensor with 50 wt% CoFe2O4 NPs content showed an optimum selectivity to NH3 molecules, with a 118.3% response towards 50 ppm in 24.3 s response time. Furthermore, the sensor showed good reproducibility, ultra-low detection limit (25 ppb) and excellent flexibility. In addition, the relative humidity effect on the sensor performance was investigated. Consequently, the flexible PET-PAni-CoFe2O4 sensor is a promising candidate for trace-level on-site sensing of NH3 in wearable electronic or portable devices.

Porous flexible polyaniline/polyvinylidene fluoride composite film for trace-level NH3 detection at room temperature

2020 ◽  
Vol 271 ◽  
pp. 127798 ◽  
Author(s):  
Pengyu Yang ◽  
Dawu Lv ◽  
Wenfeng Shen ◽  
Tieyi Wu ◽  
Ye Yang ◽  
...  
Keyword(s):  
Composite Film ◽  
Polyvinylidene Fluoride ◽  
Room Temperature ◽  
Trace Level

Irreconcilable room temperature magnetotransport properties of polypyrrole nanoparticles and nanorods

2017 ◽  
Vol 50 (36) ◽  
pp. 365002 ◽  
Author(s):  
Rizwan Ur Rehman Sagar ◽  
Florian J Stadler ◽  
Sachin T Navale ◽  
Rajaram S Mane ◽  
Adnan Nazir ◽  
...  
Keyword(s):  
Room Temperature ◽  
Polypyrrole Nanoparticles

A Transparent Nanopatterned Chemiresistor: Visible‐Light Plasmonic Sensor for Trace‐Level NO 2 Detection at Room Temperature

Small ◽  
2021 ◽  
pp. 2100438
Author(s):  
Kyeorei Lim ◽  
Young‐Moo Jo ◽  
Ji‐Wook Yoon ◽  
Jun‐Sik Kim ◽  
Dong‐Jae Lee ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Plasmonic Sensor ◽  
Trace Level

Novel Nano In2O3—WO3 Composite Films for Ultra Trace Level (ppb) Detection of NO Gas at Room Temperature

2012 ◽  
Vol 17 (1) ◽  
pp. 76-81 ◽  
Author(s):  
I-Chun Yao ◽  
Xiang-Hong Zheng ◽  
Ren-Jang Wu ◽  
Gobalakrishnan Suyambrakasam ◽  
Murthy Chavali
Keyword(s):  
Room Temperature ◽  
Composite Films ◽  
Trace Level ◽  
Ultra Trace

scholarly journals Transparent Gas Sensors: A Transparent Nanopatterned Chemiresistor: Visible‐Light Plasmonic Sensor for Trace‐Level NO 2 Detection at Room Temperature (Small 20/2021)

Small ◽  
2021 ◽  
Vol 17 (20) ◽  
pp. 2170091
Author(s):  
Kyeorei Lim ◽  
Young‐Moo Jo ◽  
Ji‐Wook Yoon ◽  
Jun‐Sik Kim ◽  
Dong‐Jae Lee ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Sensors ◽  
Room Temperature ◽  
Plasmonic Sensor ◽  
Trace Level
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