Metal-Organic Framework and Silver Nanowire Composites As Chemiresistive Gas Sensors Operating at the Percolation Threshold

2021 ◽  
Vol MA2021-01 (56) ◽  
pp. 1464-1464
Author(s):  
Abigail Mary Lister ◽  
Ben I. Armitage ◽  
Yu Wang ◽  
Merel J. Lefferts ◽  
Martin R. Castell
2019 ◽  
Vol 58 (40) ◽  
pp. 14089-14094 ◽  
Author(s):  
Hongye Yuan ◽  
Jifang Tao ◽  
Nanxi Li ◽  
Avishek Karmakar ◽  
Chunhua Tang ◽  
...  

2019 ◽  
Vol 131 (40) ◽  
pp. 14137-14137
Author(s):  
Hongye Yuan ◽  
Jifang Tao ◽  
Nanxi Li ◽  
Avishek Karmakar ◽  
Chunhua Tang ◽  
...  

2019 ◽  
Vol 131 (40) ◽  
pp. 14227-14232 ◽  
Author(s):  
Hongye Yuan ◽  
Jifang Tao ◽  
Nanxi Li ◽  
Avishek Karmakar ◽  
Chunhua Tang ◽  
...  

Sci ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 4
Author(s):  
Zhen Qiao ◽  
Arben Kojtari ◽  
Jacob Babinec ◽  
Hai-Feng Ji

An array of Ag nanowires has been prepared from a facile, templated approach on Cu(BTC) (1,3,5-benzenetricarboxylic acid) metal organic framework (MOF) micropillars. The Ag-deposited scaffolding material may be used to prepare electronic or optoelectronic devices for various applications.


2018 ◽  
Vol 35 (8) ◽  
pp. 1780
Author(s):  
Madhuri Kumari ◽  
Boyang Ding ◽  
Marina Roxburgh ◽  
Lyall Hanton ◽  
Richard Blaikie

Chemosensors ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 226
Author(s):  
Bo Huang ◽  
Yanqiong Li ◽  
Wen Zeng

Gas sensing materials, such as semiconducting metal oxides (SMOx), carbon-based materials, and polymers have been studied in recent years. Among of them, SMOx-based gas sensors have higher operating temperatures; sensors crafted from carbon-based materials have poor selectivity for gases and longer response times; and polymer gas sensors have poor stability and selectivity, so it is necessary to develop high-performance gas sensors. As a porous material constructed from inorganic nodes and multidentate organic bridging linkers, the metal-organic framework (MOF) shows viable applications in gas sensors due to its inherent large specific surface area and high porosity. Thus, compounding sensor materials with MOFs can create a synergistic effect. Many studies have been conducted on composite MOFs with three materials to control the synergistic effects to improve gas sensing performance. Therefore, this review summarizes the application of MOFs in sensor materials and emphasizes the synthesis progress of MOF composites. The challenges and development prospects of MOF-based composites are also discussed.


2021 ◽  
Author(s):  
Ming-Shui Yao ◽  
Ping Wang ◽  
Yi-Fan Gu ◽  
Tomoyuki Koganezawa ◽  
Hirotaka Ashitani ◽  
...  

Honeycomb-like 2D π-conjugated conductive metal–organic framework gas sensors with channel sizes <2 nm and broad conductivity range are studied with low conductivity facilitating response, multi-porosity and short channel resulting in fast speed.


Sensors ◽  
2021 ◽  
Vol 22 (1) ◽  
pp. 61
Author(s):  
Sachin Navale ◽  
Ali Mirzaei ◽  
Sanjit Manohar Majhi ◽  
Hyoun Woo Kim ◽  
Sang Sub Kim

This review presents the results of cutting-edge research on chemiresistive gas sensors in Korea with a focus on the research activities of the laboratories of Professors Sang Sub Kim and Hyoun Woo Kim. The advances in the synthesis techniques and various strategies to enhance the gas-sensing performances of metal-oxide-, sulfide-, and polymer-based nanomaterials are described. In particular, the gas-sensing characteristics of different types of sensors reported in recent years, including core–shell, self-heated, irradiated, flexible, Si-based, glass, and metal–organic framework sensors, have been reviewed. The most crucial achievements include the optimization of shell thickness in core–shell gas sensors, decrease in applied voltage in self-heated gas sensors to less than 5 V, optimization of irradiation dose to achieve the highest response to gases, and the design of selective and highly flexible gas sensors-based WS2 nanosheets. The underlying sensing mechanisms are discussed in detail. In summary, this review provides an overview of the chemiresistive gas-sensing research activities led by the corresponding authors of this manuscript.


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