Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 15, Issue 26, Pages 10859-10865Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cp00128h
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Funding
- National Key Basic Research, Development Program [2010CB631001]
- University of New South Wales [SIR50/PS19184, RG124422]
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The effect of the Al dopant on the dissociative adsorption of a H2O molecule on graphene is investigated using first principles calculations. It is found that doping Al into graphene can facilitate the dissociative adsorption of H2O molecules. The dissociative energy barrier is reduced from 3.609 eV on pristine graphene to 0.456 eV on Al-doped graphene and the reaction releases an energy of 0.413 eV, which indicates a smooth dissociative adsorption on Al-doped graphene at room temperature. In addition, the dissociative adsorption of H2O molecules can convert the Al-doped graphene from hydrophobic to hydrophilic while obtaining conductive graphene with doping concentration higher than 5.56%. This hydrophilic and conductive graphene has potential applications in supercapacitors and biomaterial supports.
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