SnO2Quantum Dots and Quantum Wires: Controllable Synthesis, Self-Assembled 2D Architectures, and Gas-Sensing Properties

2008 ◽  
Vol 130 (37) ◽  
pp. 12527-12535 ◽  
Author(s):  
Xiangxing Xu ◽  
Jing Zhuang ◽  
Xun Wang
Keyword(s):  
Quantum Wires ◽  
Gas Sensing ◽  
Controllable Synthesis ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Self Assembled

scholarly journals Correction: Controllable synthesis and enhanced gas sensing properties of a single-crystalline WO3–rGO porous nanocomposite

RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 32174-32174
Author(s):  
Hao Qin ◽  
Tie Liu ◽  
Jingyuan Liu ◽  
Qi Liu ◽  
Xiaoyan Jing ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Controllable Synthesis ◽  
Single Crystalline ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Porous Nanocomposite

Correction for ‘Controllable synthesis and enhanced gas sensing properties of a single-crystalline WO3–rGO porous nanocomposite’ by Qin Hao et al., RSC Adv., 2017, 7, 14192–14199.

scholarly journals Hydrophilicity and carbon chain length effects on the gas sensing properties of chemoresistive, self-assembled monolayer carbon nanotube sensors

2019 ◽  
Vol 10 ◽  
pp. 565-577 ◽  
Author(s):  
Juan Casanova-Cháfer ◽  
Carla Bittencourt ◽  
Eduard Llobet
Keyword(s):  
Carbon Nanotubes ◽  
Nitrogen Dioxide ◽  
Photoelectron Spectroscopy ◽  
Gas Sensing ◽  
Carbon Chain ◽  
Head Group ◽  
Carbon Chain Length ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Self Assembled

Here we describe the development of chemoresistive sensors employing oxygen-plasma-treated, Au-decorated multiwall carbon nanotubes (MWCNTs) functionalized with self-assembled monolayers (SAMs) of thiols. For the first time, the effects of the length of the carbon chain and its hydrophilicity on the gas sensing properties of SAMs formed on carbon nanotubes are studied, and additionally, the gas sensing mechanisms are discussed. Four thiols differing in the length of the carbon chain and in the hydrophobic or hydrophilic nature of the head functional group are studied. Transmission electron microscopy, Raman spectroscopy and X-ray photoelectron spectroscopy are used to analyze the resulting gas-sensitive hybrid films. Among the different nanomaterials tested, short-chain thiols having a hydrophilic head group, self-assembled onto Au-decorated carbon nanotubes were most responsive to nitrogen dioxide and ethanol vapors, even in the presence of ambient humidity. In particular, this nanomaterial was about eight times more sensitive to nitrogen dioxide than bare Au-decorated carbon nanotubes when operated at room temperature. This response enhancement is attributed to the interaction, via strong hydrogen bonding, of the polar molecules tested to the polar surface of hydrophilic thiols. The approach discussed here could be extended further by combining hydrophilic and hydrophobic thiol SAMs in Au-MWCNT sensor arrays as a helpful strategy for tuning sensor response and selectivity. This would make the detection of polar and nonpolar gas species employing low-power gas sensors easier, even under fluctuating ambient moisture conditions.

scholarly journals Controllable synthesis and enhanced gas sensing properties of a single-crystalline WO3–rGO porous nanocomposite

RSC Advances ◽  
2017 ◽  
Vol 7 (23) ◽  
pp. 14192-14199 ◽  
Author(s):  
Qin Hao ◽  
Tie Liu ◽  
Jingyuan Liu ◽  
Qi Liu ◽  
Xiaoyan Jing ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Gas Detection ◽  
Controllable Synthesis ◽  
Single Crystalline ◽  
Sensing Properties ◽  
Porous Nanostructures ◽  
Gas Sensing Properties ◽  
Porous Nanocomposite

A single-crystalline WO3–rGO composite has been successfully prepared and applied into gas detection. Impressively, this permit-3D porous nanostructures display enhanced NO2 sensing properties.

Controllable Synthesis and Gas-Sensing Properties of Zinc Oxide Nanocrystals With Exposed Different Percentage of Facets

2016 ◽  
Vol 16 (4) ◽  
pp. 866-872 ◽  
Author(s):  
Shouli Bai ◽  
Le Quan ◽  
Pinggui Tang ◽  
Yangbo Zhao ◽  
Ruixian Luo ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Gas Sensing ◽  
Controllable Synthesis ◽  
Sensing Properties ◽  
Gas Sensing Properties

Facile synthesis and gas sensing properties of tubular hierarchical ZnO self-assembled by porous nanosheets

2015 ◽  
Vol 215 ◽  
pp. 231-240 ◽  
Author(s):  
Faying Fan ◽  
Pinggui Tang ◽  
Yuanyuan Wang ◽  
Yongjun Feng ◽  
Aifan Chen ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Facile Synthesis ◽  
Sensing Properties ◽  
Porous Nanosheets ◽  
Gas Sensing Properties ◽  
Self Assembled

Gas sensing properties of self-assembled ZnO nanotube bundles

RSC Advances ◽  
2013 ◽  
Vol 3 (37) ◽  
pp. 16619 ◽  
Author(s):  
Qingjiang Yu ◽  
Cuiling Yu ◽  
Jinzhong Wang ◽  
Fengyun Guo ◽  
Shiyong Gao ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Sensing Properties ◽  
Nanotube Bundles ◽  
Zno Nanotube ◽  
Gas Sensing Properties ◽  
Self Assembled
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