Morphology adjustment of SnO2 and SnO2/CeO2 one dimensional nanostructures towards applications in gas sensing and CO oxidation

RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 98500-98507 ◽  
Author(s):  
Yunshi Liu ◽  
Ping Yang ◽  
Jia Li ◽  
Katarzyna Matras-Postolek ◽  
Yunlong Yue ◽  
...  

SnO2 and SnO2/CeO2 1D nanostructures with various morphologies were prepared via a single-spinneret electrospinning process and subsequent heat-treatment by adjusting heating rate and CeO2 ratio. SnO2/CeO2 nanotubes exhibited superior gas sensing and CO oxidation properties.

Nanoscale ◽  
2018 ◽  
Vol 10 (37) ◽  
pp. 17456-17476 ◽  
Author(s):  
Junpeng Lu ◽  
Hongwei Liu ◽  
Xinhai Zhang ◽  
Chorng Haur Sow

One-dimensional (1D) nanostructures of II–VI ternary alloys are of prime interest due to their compatible features of both 1D nanostructures and semiconducting alloys.


2013 ◽  
Vol 1551 ◽  
pp. 23-28
Author(s):  
Maelig Ollivier ◽  
Laurence Latu-Romain ◽  
Mickaël Martin ◽  
Arnaud Mantoux ◽  
Edwige Bano

ABSTRACTThanks to an original approach based on the carburization of silicon nanowires, silicon carbide-based one dimensional nanostructures – SiC nanotubes, Si-SiC core-shell nanowires and SiC nanowires – have been synthesized. The original process, which relies on controlling the out-diffusion of Si atoms through SiC, can be monitored by the temperature, the pressure and the time of carburization. These SiC-based 1D nanostructures have been characterized by SEM, FIB-SEM and TEM microscopies and also Raman spectroscopy. Bio-nano-sensors, nano-Field-Effect-Transistors (nano-FETs) or gas sensors may be some applications for these nanostructures.


CrystEngComm ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 1836-1848
Author(s):  
Vyacheslav N. Gorshkov ◽  
Vladimir V. Tereshchuk ◽  
Pooya Sareh

Peculiar scenarios in the dynamics of BCC and FCC 1D-nanostructures leading to the formation of ultra-short, and sometimes stable, high-amplitude surface modulations are analysed and the means of achieving the desired periodicity are discussed.


2015 ◽  
Vol 41 (3) ◽  
pp. 4675-4682 ◽  
Author(s):  
Xinxin Xing ◽  
Yun Cai ◽  
Nan Chen ◽  
Yuxiu Li ◽  
Dongyang Deng ◽  
...  

2018 ◽  
Vol 9 ◽  
pp. 2128-2170 ◽  
Author(s):  
Muhammad Imran ◽  
Nunzio Motta ◽  
Mahnaz Shafiei

Electrospun one-dimensional (1D) nanostructures are rapidly emerging as key enabling components in gas sensing due to their unique electrical, optical, magnetic, thermal, mechanical and chemical properties. 1D nanostructures have found applications in numerous areas, including healthcare, energy storage, biotechnology, environmental monitoring, and defence/security. Their enhanced specific surface area, superior mechanical properties, nanoporosity and improved surface characteristics (in particular, uniformity and stability) have made them important active materials for gas sensing applications. Such highly sensitive and selective elements can be embedded in sensor nodes for internet-of-things applications or in mobile systems for continuous monitoring of air pollutants and greenhouse gases as well as for monitoring the well-being and health in everyday life. Herein, we review recent developments of gas sensors based on electrospun 1D nanostructures in different sensing platforms, including optical, conductometric and acoustic resonators. After explaining the principle of electrospinning, we classify sensors based on the type of materials used as an active sensing layer, including polymers, metal oxide semiconductors, graphene, and their composites or their functionalized forms. The material properties of these electrospun fibers and their sensing performance toward different analytes are explained in detail and correlated to the benefits and limitations for every approach.


2011 ◽  
Vol 412 ◽  
pp. 374-377
Author(s):  
Jian Fang Wu ◽  
Hua Zhi Gu ◽  
Lin Sheng Kou

In this paper, the catalyst precursors were coated on the surface of natural flake graphite with micron size by liquid coating method. Carbon with one-dimensional nanostructures formed on the surface of graphite after the heat treatment of the mixture of phenolic resin and coated graphite. The effects of the forms and amounts of catalyst precursors and the temperature on the formation of carbon with one-dimensional nanostructures were studied. And the thermal conductivities of the samples were measured. The results showed that the catalyst precursor with the form of NiO would be better. And the optimum amounts of the catalyst precursor were 1mass % ~2 mass % of resin. It was not conducive to the reaction when the temperature was too low or too high, but 1100°C was appropriate. The thermal conductivities of samples were increasing with the increase of the qualities of carbon with one-dimensional nanostructure.


2013 ◽  
Vol 28 (6) ◽  
pp. 584-588 ◽  
Author(s):  
Shuang XU ◽  
Ying YANG ◽  
Hong-Yuan WU ◽  
Chao JIANG ◽  
Li-Qiang JING ◽  
...  

2015 ◽  
Vol 19 (6) ◽  
pp. 484-497 ◽  
Author(s):  
Chuang Han ◽  
Siqi Liu ◽  
Zi-Rong Tang ◽  
Yi-Jun Xu

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