Highly responsive room-temperature ammonia sensing properties of MoS2/MoO3 nano-composite

2021 ◽  
Author(s):  
Sukhwinder Singh ◽  
Anita Guleria ◽  
Narveer Singh ◽  
Sandeep Sharma
Keyword(s):  
Room Temperature ◽  
Nano Composite ◽  
Sensing Properties ◽  
Ammonia Sensing

Enhancement in Room Temperature Ammonia Sensing Properties of Naphthalene Diimides through Core Expansion

2022 ◽  
Author(s):  
Salman Ali ◽  
Mohammed Jameel ◽  
Glenn Oldham ◽  
Akhil Gupta ◽  
Mahnaz Shafiei ◽  
...  
Keyword(s):  
Active Layer ◽  
Organic Semiconductor ◽  
Room Temperature ◽  
Ammonia Gas ◽  
Sensing Properties ◽  
Ammonia Sensing ◽  
Naphthalene Diimide ◽  
Naphthalene Diimides

An amperometric type sensor whose active layer is derived from a tetra core-substituted organic semiconductor, naphthalene diimide (NDI-CN4), has been evaluated for ammonia gas (3, 6, 25 and 50 ppm)...

Room temperature ammonia sensing properties of nanostructured polyaniline salt and polyaniline base thin films

2017 ◽  
Vol 518 (1) ◽  
pp. 137-145 ◽  
Author(s):  
Deepak S. Upadhye ◽  
Sagar B. Bagul ◽  
Nanasaheb P. Huse ◽  
Avinash S. Dive ◽  
Ramphal Sharma
Keyword(s):  
Thin Films ◽  
Room Temperature ◽  
Sensing Properties ◽  
Ammonia Sensing

Preparation of porous silicon/Pd-loaded WO 3 nanowires for enhancement of ammonia sensing properties at room temperature

2018 ◽  
Vol 79 ◽  
pp. 113-118 ◽  
Author(s):  
Xiaoyong Qiang ◽  
Ming Hu ◽  
Boshuo Zhao ◽  
Yue Qin ◽  
Tianyi Zhang ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Room Temperature ◽  
Sensing Properties ◽  
Ammonia Sensing

scholarly journals The effects of central metals on ammonia sensing of metallophthalocyanines covalently bonded to graphene oxide hybrids

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 34215-34225 ◽  
Author(s):  
Yong Li ◽  
Bin Wang ◽  
Zheying Yu ◽  
Xiaoqing Zhou ◽  
Di Kang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Room Temperature ◽  
Sensing Properties ◽  
Ammonia Sensing ◽  
Covalently Bonded ◽  
Amidation Reaction

Stably dispersed aPcM–GO hybrids were prepared by a facile amidation reaction with excellent NH3 sensing properties at room temperature, which rely to the aPcM functionalization on GO.

scholarly journals Structural transformation and room temperature ammonia sensing properties of TiS2 nanostructures

2020 ◽  
Vol 2 (5) ◽  
Author(s):  
Shivani Sharma ◽  
Sukhwinder Singh ◽  
Ravi Chand Singh ◽  
Sandeep Sharma
Keyword(s):  
Structural Transformation ◽  
Room Temperature ◽  
Sensing Properties ◽  
Ammonia Sensing

Enhanced ammonia-sensing properties of PANI-TiO2-Au ternary self-assembly nanocomposite thin film at room temperature

2017 ◽  
Vol 246 ◽  
pp. 85-95 ◽  
Author(s):  
Chunhua Liu ◽  
Huiling Tai ◽  
Peng Zhang ◽  
Zongbiao Ye ◽  
Yuanjie Su ◽  
...  
Keyword(s):  
Thin Film ◽  
Self Assembly ◽  
Room Temperature ◽  
Nanocomposite Thin Film ◽  
Sensing Properties ◽  
Ammonia Sensing

Enhanced room temperature ammonia sensing properties of polypyrrole–zinc tin oxide nanocomposite

2020 ◽  
Vol 34 (17) ◽  
pp. 2050188
Author(s):  
Seyede Azadeh Hejazi Juybari ◽  
Hossain Milani Moghaddam
Keyword(s):  
Recovery Time ◽  
High Performance ◽  
Room Temperature ◽  
Gas Sensing ◽  
Oxidative Polymerization ◽  
Physicochemical Characterization ◽  
High Porosity ◽  
Sensing Properties ◽  
Ammonia Sensing ◽  
Zinc Tin Oxide

Polypyrrole (PPy)–Zn2SnO4 nanocomposites with different weight percentages (0–20%) of Zn2SnO4 were successfully prepared by chemical oxidative polymerization. The prepared nanocomposites were deposited on epoxy glass substrate using a spin coating technique and have been characterized using various techniques such as X-ray diffractometer, field emission scanning electron microscopy (FESEM) and Fourier transform infrared (FTIR) spectrometer. The physicochemical characterization confirmed well-formed dodecylbenzene (DBSA)-doped PPy–Zn2SnO4 nanocomposites with granular morphology and high porosity. Among various nanocompositions, DBSA-doped PPy–Zn2SnO4 (10 wt.%) nanocomposite was found to be highly sensitive towards NH3 vapor at room temperature i.e. with a chemiresistive response of 5.44% at 27 ppm with a reasonably fast recovery time of 76 s. Additionally, it shows a linear response and appropriate recovery time at all concentrations of NH3 vapor. The DBSA-doped PPy–Zn2SnO4 nanocomposite response is four times better than pure PPy toward NH3 vapor at room temperature. Therefore, it is expected that such material with excellent gas sensing properties at room temperature can be used for high-performance NH3 sensors.

The Methanol Response Sensing Properties Using MWCNT-ZnO Composite

2015 ◽  
Vol 1112 ◽  
pp. 116-119 ◽  
Author(s):  
Ni Luh Wulan Septiani ◽  
Brian Yuliarto ◽  
Muhammad Iqbal ◽  
Suyatman ◽  
Ahmad Nuruddin ◽  
...  
Keyword(s):  
Room Temperature ◽  
Weight Percent ◽  
Fast Response ◽  
Zno Thin Films ◽  
X Ray Diffraction ◽  
Nano Composite ◽  
X Ray ◽  
Sensing Properties ◽  
Best Response ◽  
Scanning Electron

Nano composite MWCNT-ZnO thin films have been synthesized to investigate their methanol sensing properties. MWCNTs have a large surface area, many adsorption site, are sensitive to their chemical environmental, and can be operated at room temperature. While zinc oxide was popular as gas sensor because its easy to fabricate, fast response, easy to control their morphology, and has unique properties depend on their size and shape. In this study, combination of MWCNT and ZnO were made to get their advantages. These nano composites were prepared with weight percent ratio 63:37. MWCNT-ZnO were synthesized by reflux method at 197°C in ethylene glycol. Heat treatment at 300°C were done to obtain powder of nano composite. X-ray diffraction (XRD) and scanning electron microscope were used to investigate the crystal phase and morphology of nano composite. Sensing behavior was investigated at 100°C to 300°C. The best response of 200 ppm methanol occurred at 300°C.

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