Enhancement of CO detection in Al doped graphene

By Zhimin Ao, J. Yang, Sean Li, Q. Jiang. 2008

437 citations recorded by the source corpus.

A principle of the enhancement of CO adsorption was developed theoretically by using density functional theory through doping Al into graphene. The results show that the Al doped graphene has strong chemisorption of CO molecule by forming Al–CO bond, where CO onto intrinsic graphene remains weak physisorption. Furthermore, the enhancement of CO sensitivity in the Al doped graphene is determined by a large electrical conductivity change after adsorption, where CO absorption leads to increase of electrical conductivity via introducing large amount of shallow acceptor states. Therefore, this newly developed Al doped graphene would be an excellent candidate for sensing CO gas.

Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/0f08981060ee6f871add84c56500ff77f795418f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Electrical and Electronic Engineering

1. D. Late
2. Yuehe Lin
3. C. Rao
4. Jun Liu
5. Benjamin Harack
6. M. Hilke
7. B. D’Anjou
8. V. Yu

In Electronic, Optical and Magnetic Materials

1. Jun Liu
2. Yuehe Lin
3. C. Rao
4. A. Govindaraj
5. U. Sur

In Materials Chemistry

1. D. Late
2. C. Rao
3. Benjamin Harack
4. M. Hilke
5. Nery Villegas‐Escobar
6. D. Cortés-Arriagada
7. B. D’Anjou
8. Jun Liu

Citations in the corpus

• Experimental Review of Graphene (2011, background): “Impurities and defects were also shown to affect the response to gas adsorption onto graphene (Ao et al., 2008; Zhang et al., 2009b).”
• NO2 and humidity sensing characteristics of few-layer graphenes (2009, methodology): “have applied density functional theory to show that aluminium doped graphene can be used as a good detector for carbon monoxide [29].”
• Fe-doped graphene nanosheet as an adsorption platform of harmful gas molecules (CO, CO2, SO2 and H2S), and the co-adsorption in O2 environments (2018, background): “obtained onto Al, Co, Cu, Ag and Au-modified graphene[20, 29, 47, 70].”