A highly sensitive gas sensor based on CuO nanoparticles synthetized via a sol–gel method

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79343-79349 ◽  
Author(s):  
Fang Wang ◽  
Hairong Li ◽  
Zhaoxin Yuan ◽  
Yongzhe Sun ◽  
Fangzhi Chang ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Sol Gel ◽  
Cuo Nanoparticles ◽  
Gel Method ◽  
Sol Gel Method ◽  
Highly Sensitive

In this paper, CuO nanoparticles were synthetized via a sol–gel method and their corresponding gas sensor was achieved simultaneously.

scholarly journals The highly sensitive NO2 gas sensor using ZnO nanorods grown by the sol-gel method

2008 ◽  
Vol 17 (2) ◽  
pp. 147-150 ◽  
Author(s):  
S.J. Park ◽  
J.H. Kwak ◽  
J. Park ◽  
H.Y. Lee ◽  
S.E. Moon ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Sol Gel ◽  
Zno Nanorods ◽  
Gel Method ◽  
Sol Gel Method ◽  
No2 Gas Sensor ◽  
Highly Sensitive

Relationship between Gas Sensitivity and Film Structure of SnO2Thin Film Gas Sensor by Sol-Gel Method

1994 ◽  
Vol 23 (11) ◽  
pp. 2035-2038 ◽  
Author(s):  
Masaaki Kanamori ◽  
Mitsuhiro Takeuchi ◽  
Yutaka Ohya ◽  
Yasutaka Takahashi
Keyword(s):  
Gas Sensor ◽  
Sol Gel ◽  
Film Structure ◽  
Gas Sensitivity ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Fast response time alcohol gas sensor using nanocrystalline F-doped SnO2 films derived via sol–gel method

2013 ◽  
Vol 36 (4) ◽  
pp. 521-533 ◽  
Author(s):  
SARBANI BASU ◽  
YEONG-HER WANG ◽  
C GHANSHYAM ◽  
PAWAN KAPUR
Keyword(s):  
Response Time ◽  
Gas Sensor ◽  
Sol Gel ◽  
Fast Response ◽  
Gel Method ◽  
Sol Gel Method ◽  
Fast Response Time

scholarly journals Comparative investigation of oxidative degradation of organic dye in the presence of H2O2 and CuO nanoparticles synthesized by sol–gel method and green synthesis using flower (Matricaria chamomilla) extract

Chemija ◽  
2019 ◽  
Vol 30 (4) ◽  
Author(s):  
D. Kaušpėdienė ◽  
E. Zubrytė ◽  
A. Gefenienė ◽  
M. Jovaišaitė ◽  
V. Gefenas ◽  
...  
Keyword(s):  
Green Synthesis ◽  
Degradation Kinetics ◽  
Sol Gel ◽  
Oxidative Degradation ◽  
Organic Dye ◽  
Cuo Nanoparticles ◽  
Synthesis Methods ◽  
Matricaria Chamomilla ◽  
Gel Method ◽  
Sol Gel Method

In this study, CuO nanoparticles have been synthesized via a simple sol–gel method and green synthesis using flower (Matricaria chamomilla) extract. XRD analysis of the synthesized CuO nanoparticles clearly indicated a crystalline nature with a monoclinic structure regardless of the method of synthesis, while SEM revealed that the used synthesis methods affected the morphology of the CuO nanoparticles. The oxidative degradation kinetics of the organic dye Methyl Orange (MO) in the presence of the synthesized catalyst CuO and H2O2 has been investigated and compared depending on the dye concentration, reaction time and temperature. The catalytic activity of CuO was studied by measuring the UV–visible spectrum of the MO dye solution treated with CuO and H2O2. It was determined that the MO degradation reaction kinetics followed the pseudo-first-order mechanism. Thermodynamic studies indicated an endothermic nature (∆H# = +73.03 kJ mol–1) and a decrease in randomness at the catalyst CuO/solution interface during the reaction (∆S# = –0.021 kJ mol–1 K–1). At the same conditions, the green synthesized CuO nanoparticles exhibit similar activity properties as CuO synthesized using the sol–gel method. Besides, the green synthesis of CuO nanoparticles is simple and uses a small number of chemicals. The obtained CuO may be a promising catalyst for the oxidative degradation of organics, especially used in medical procedures.

Structural and Morphological Analysis of Nanocomposite SnO2-Graphene Synthesized by Sol-Gel Method

2017 ◽  
Vol 887 ◽  
pp. 32-40 ◽  
Author(s):  
Aminuddin Debataraja ◽  
Brian Yuliarto ◽  
Nugraha ◽  
Bambang Sunendar ◽  
Hiskia
Keyword(s):  
Crystal Structure ◽  
Gas Sensor ◽  
Morphological Analysis ◽  
Sol Gel ◽  
Hexagonal Structure ◽  
Gel Method ◽  
Sol Gel Method ◽  
Sensor Performance ◽  
Sensing Material ◽  
Potential Applicability

Gas sensor performance is strongly influenced by the crystal structure, composition and morphology of the material used. In this paper, structural and morphological analysis of nanocomposite SnO2-Graphene synthesized by Sol-Gel method with the composition of 1:1, 1:2, 1:3 will be described. Analysis of the morphology and structure of nanocomposite SnO2-Graphene is investigated using XRD, SEM and TEM with the purpose of obtaining the crystal structure, morphology, composition and size of the resulting particles. The XRD results showed that the formation of the crystalline phase can be recorded at 2θ = 26.64; 34.2; 51.92, where the results of SEM show that the nanomaterial SnO2 has tetragonal structure while the graphene has hexagonal structure. The nanocomposite SnO2-Graphene has nanorod pattern. Furthermore, the surface analysis using TEM of nanocomposite SnO2-Graphene shows that the surface has the rod diameter in the range of 5-8 nm. The unique nanopattern of SnO2-Graphene will have potential applicability as the sensing material for CO gas sensor.

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