Enhanced gas adsorption property of hybrid nanopore-structured copper oxide synthesized from the carbon nanotube/copper composites

2010 ◽  
Vol 108 (6) ◽  
pp. 064303 ◽  
Author(s):  
Min Ha Lee ◽  
Kyung Tae Kim ◽  
Thomas Gemming ◽  
Daniel J. Sordelet ◽  
Jürgen Eckert
2018 ◽  
Vol 5 (6) ◽  
pp. 1423-1431 ◽  
Author(s):  
Dongjie Bai ◽  
Xiaoxia Gao ◽  
Minghui He ◽  
Yao Wang ◽  
Yabing He

The positional effect of nitrogen functional sites on the structural stability and gas adsorption property was explored in a family of ssa-type MOFs.


Carbon ◽  
2013 ◽  
Vol 62 ◽  
pp. 135-148 ◽  
Author(s):  
Mayakrishnan Gopiraman ◽  
Sundaram Ganesh Babu ◽  
Zeeshan Khatri ◽  
Wei Kai ◽  
Yoong Ahm Kim ◽  
...  
Keyword(s):  

2011 ◽  
Vol 311-313 ◽  
pp. 1491-1495
Author(s):  
Li Min Wang ◽  
Ying Hua Li ◽  
Wei Wei

A novel ion-imprinted organic-inorganic hybrid sorbent was synthesized and characterized by FT-IR and nitrogen gas adsorption-desorption. The adsorption property and selective recognition ability of the imprinted sorbents for the lead ion were studied. Results showed that the uptake capacities and selectivity coefficients of the double imprinted sorbent were much higher than that of the non-imprinted sorbent. The adsorption capacity of the double imprinted sorbent is 545.6 mg•g-1. The largest relative selectivity coefficient between Pb (II) and Cd (II) was 192. This results suggested that the new sorbent can be used as effective solid-phase material for the selective preconcentration and separation of Pb (II) in environmental water samples.


Author(s):  
Suphitsara Maturost ◽  
Suwaphid Themsirimongkon ◽  
Surin Saipanya ◽  
Li Fang ◽  
Natthapong Pongpichayakul ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 357
Author(s):  
Ali Hosseingholipourasl ◽  
Sharifah Hafizah Syed Ariffin ◽  
Mohammad Taghi Ahmadi ◽  
Seyed Saeid Rahimian Koloor ◽  
Michal Petrů ◽  
...  

Recent advances in nanotechnology have revealed the superiority of nanocarbon species such as carbon nanotubes over other conventional materials for gas sensing applications. In this work, analytical modeling of the semiconducting zigzag carbon nanotube field-effect transistor (ZCNT-FET) based sensor for the detection of gas molecules is demonstrated. We propose new analytical models to strongly simulate and investigate the physical and electrical behavior of the ZCNT sensor in the presence of various gas molecules (CO2, H2O, and CH4). Therefore, we start with the modeling of the energy band structure by acquiring the new energy dispersion relation for the ZCNT and introducing the gas adsorption effects to the band structure model. Then, the electrical conductance of the ZCNT is modeled and formulated while the gas adsorption effect is considered in the conductance model. The band structure analysis indicates that, the semiconducting ZCNT experiences band gap variation after the adsorption of the gases. Furthermore, the bandgap variation influences the conductance of the ZCNT and the results exhibit increments of the ZCNT conductance in the presence of target gases while the minimum conductance shifted upward around the neutrality point. Besides, the I-V characteristics of the sensor are extracted from the conductance model and its variations after adsorption of different gas molecules are monitored and investigated. To verify the accuracy of the proposed models, the conductance model is compared with previous experimental and modeling data and a good consensus is observed. It can be concluded that the proposed analytical models can successfully be applied to predict sensor behavior against different gas molecules.


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