A high-performance n-butanol gas sensor based on ZnO nanoparticles synthesized by a low-temperature solvothermal route

RSC Advances ◽  
2015 ◽  
Vol 5 (67) ◽  
pp. 54372-54378 ◽  
Author(s):  
Xu Liu ◽  
Nan Chen ◽  
Xinxin Xing ◽  
Yuxiu Li ◽  
Xuechun Xiao ◽  
...  

Solvothermally synthesized ZnO nanoparticles applied as a sensing layer for an n-butanol gas sensor show a very good gas response performance.

2021 ◽  
Vol 13 (4) ◽  
pp. 724-733
Author(s):  
Ahmad Umar ◽  
Ahmed A. Ibrahim ◽  
Rajesh Kumar ◽  
Hassan Algadi ◽  
Hasan Albargi ◽  
...  

In this paper, star-fruit-shaped CuO microstructures were hydrothermally synthesized and subsequently characterized through different techniques to understand morphological, compositional, structural, crystal, optical and vibrational properties. The formation of star-fruit-shaped structures along with some polygonal and spherical nanostructures was confirmed by FESEM analysis. XRD data and Raman spectrum confirmed the monoclinic tenorite crystalline phase of the CuO with crystal size 17.61 nm. Star-fruit-shaped CuO microstructures were examined for ethanol gas sensing behavior at various operating temperatures and concentrations. The gas response of 135% was observed at the optimal temperature of 225 °C. Due to excellent selectivity, stability and re-usability, the as-fabricated sensor based on star-fruit-shaped CuO micro-structures may be explored for future toxic gas sensor applications.


2018 ◽  
Vol 42 (17) ◽  
pp. 14071-14074 ◽  
Author(s):  
Xue-Zhi Song ◽  
Yu-Lan Meng ◽  
Xi Chen ◽  
Kai-Ming Sun ◽  
Xiao-Feng Wang

A gas sensor based on hollow NiFe2O4 hexagonal biyramids exhibits high performances, including high response value, good selectivity and cyclic stability towards n-propanol while operating at low temperature.


2020 ◽  
Vol 30 (10) ◽  
pp. 4063-4071 ◽  
Author(s):  
M. Hjiri ◽  
F. Bahanan ◽  
M. S. Aida ◽  
L. El Mir ◽  
G. Neri

2015 ◽  
Vol 355 ◽  
pp. 726-735 ◽  
Author(s):  
Dinesh Veeran Ponnuvelu ◽  
Biji Pullithadathil ◽  
Arun K. Prasad ◽  
Sandip Dhara ◽  
Anuradha Ashok ◽  
...  

2014 ◽  
Vol 804 ◽  
pp. 209-212 ◽  
Author(s):  
Pusit Pookmanee ◽  
Isara Phiwchai ◽  
Sorachon Yoriya ◽  
Ratchadaporn Puntharod ◽  
Supaporn Sangsrichan ◽  
...  

Titanium dioxide (TiO2) nanopowder was prepared by the low temperature solvothermal route with starting chemicals containing titanium isopropoxide, ammonium hydroxide, nitric acid and ethanol in a PTFE–lined autoclave. The final pH of the mixed solution was 1 and treated at 100 °C for 2–6 h. The white precipitated was filtered and dried in an oven at 80 °C for 24 h. The phase transition was characterized by X–ray diffractometer (XRD). Single phase anatase structure was obtained without calcination step. The morphology and particle size of TiO2nanopowder was investigated by scanning electron microscope (SEM). The average of TiO2nanopowder size was 80–120 nm. The average particle size increased with temperature and time increased. The photocatalytic degradation of methomyl in natural water was studied by high performance liquid chromatograph (HPLC). The percentage of methomyl was decreased in the presence of 34, 23 and 24 over TiO2nanopowder prepared by the low temperature solvothermal route at 100 °C for 2, 4 and 6 h, respectively.


2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Salimeh kimiagar ◽  
Vahid Najafi ◽  
Bartlomiej Witkowski ◽  
Rafal Pietruszka ◽  
Marek Godlewski

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96539-96546 ◽  
Author(s):  
Xu Liu ◽  
Kaimeng Pan ◽  
Lihong Wang ◽  
Chengjun Dong ◽  
Xuechun Xiao ◽  
...  

Well crystallized W-doped anatase TiO2 nanoparticles synthesized by a simple non-aqueous sol–gel route were applied as a sensing layer for a butane gas sensor and showed good gas response performance for butane gas.


CrystEngComm ◽  
2013 ◽  
Vol 15 (36) ◽  
pp. 7243 ◽  
Author(s):  
Xiaoshuang Chen ◽  
Xiaoyan Jing ◽  
Jun Wang ◽  
Jingyuan Liu ◽  
Dalei Song ◽  
...  

Proceedings ◽  
2020 ◽  
Vol 65 (1) ◽  
pp. 25
Author(s):  
Antonio Garrido Marijuan ◽  
Roberto Garay ◽  
Mikel Lumbreras ◽  
Víctor Sánchez ◽  
Olga Macias ◽  
...  

District heating networks deliver around 13% of the heating energy in the EU, being considered as a key element of the progressive decarbonization of Europe. The H2020 REnewable Low TEmperature District project (RELaTED) seeks to contribute to the energy decarbonization of these infrastructures through the development and demonstration of the following concepts: reduction in network temperature down to 50 °C, integration of renewable energies and waste heat sources with a novel substation concept, and improvement on building-integrated solar thermal systems. The coupling of renewable thermal sources with ultra-low temperature district heating (DH) allows for a bidirectional energy flow, using the DH as both thermal storage in periods of production surplus and a back-up heating source during consumption peaks. The ultra-low temperature enables the integration of a wide range of energy sources such as waste heat from industry. Furthermore, RELaTED also develops concepts concerning district heating-connected reversible heat pump systems that allow to reach adequate thermal levels for domestic hot water as well as the use of the network for district cooling with high performance. These developments will be demonstrated in four locations: Estonia, Serbia, Denmark, and Spain.


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