Rapid synthesis of CdS nanowire mesh via a simplistic wet chemical route and its NO2 gas sensing properties

2018 ◽  
Vol 42 (6) ◽  
pp. 4232-4239 ◽  
Author(s):  
Sharadrao A. Vanalakar ◽  
Vithoba L. Patil ◽  
Pramod S. Patil ◽  
Jin H. Kim

In this report, 1-D interconnected CdS nanowires were prepared rapidly via a wet chemical route at relatively low temperature, using cadmium sulphate, thiourea and ammonia as raw materials.

2016 ◽  
Vol 52 (71) ◽  
pp. 10731-10734 ◽  
Author(s):  
Jin Goo Lee ◽  
Ho Jung Hwang ◽  
Ohchan Kwon ◽  
Ok Sung Jeon ◽  
Jeongseok Jang ◽  
...  

A hexagonal perovskite BaNiO3 with unusually high-valence nickel(iv) was synthesized under atmospheric and low-temperature conditions by an ethylenediamine-derived wet-chemical route.


2009 ◽  
Vol 143 (1) ◽  
pp. 198-204 ◽  
Author(s):  
T. Krishnakumar ◽  
R. Jayaprakash ◽  
N. Pinna ◽  
N. Donato ◽  
A. Bonavita ◽  
...  

2012 ◽  
Vol 585 ◽  
pp. 235-239 ◽  
Author(s):  
Rishi Vyas ◽  
Sarla Sharma ◽  
Parul Gupta ◽  
Arun K. Prasad ◽  
A.K. Tyagi ◽  
...  

The CNT-ZnO nanocomposites were synthesized by addition of commercially available MWCNT during growth of ZnO nanoparticles employing a wet chemical route. These nanocomposites were then spin coated and characterized using X-ray diffraction, scanning electron microscopy, current-voltage characteristics and O2 (5-20%) / NO2 (2-20 ppm) gas sensing at 250°C operating temperature in N2 atmosphere (0.4±0.03 mbar). The addition of CNT in ZnO is found to increase the sensitivity for both O2 and NO2 gas sensing. The 0.1 wt % CNT addition in ZnO is observed to appreciably enhance the NO2 gas sensitivity while 1.0 wt % CNT addition in ZnO showed highest sensitivity for O2 gas detection.


Author(s):  
Pratibha L. Gai ◽  
M. A. Saltzberg ◽  
L.G. Hanna ◽  
S.C. Winchester

Silica based ceramics are some of the most fundamental in crystal chemistry. The cristobalite form of silica has two modifications, α (low temperature, tetragonal form) and β (high temperature, cubic form). This paper describes our structural studies of unusual chemically stabilized cristobalite (CSC) material, a room temperature silica-based ceramic containing small amounts of dopants, prepared by a wet chemical route. It displays many of the structural charatcteristics of the high temperature β-cristobalite (∼270°C), but does not undergo phase inversion to α-cristobalite upon cooling. The Structure of α-cristobalite is well established, but that of β is not yet fully understood.Compositions with varying Ca/Al ratio and substitutions in cristobalite were prepared in the series, CaO:Al2O3:SiO2 : 3-x: x : 40, with x= 0-3. For CSC, a clear sol was prepared from Du Pont colloidal silica, Ludox AS-40®, aluminium nitrate nonahydrate, and calcium nitrate hexahydrate in proportions to form a final composition 1:2:40 composition.


2021 ◽  
Vol 602 ◽  
pp. 412574
Author(s):  
Tahira Akhter ◽  
Muhammad Asif Yousuf ◽  
Muhammad Asghar ◽  
Ibrahim A. Alsafari ◽  
Akmal Jamil ◽  
...  

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