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Investigation of Hydrogen Physisorption Active Sites on the Surface of Porous Carbonaceous Materials
Author(s) -
Qu Deyang
Publication year - 2008
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200701042
Subject(s) - physisorption , adsorption , hydrogen , porosity , materials science , chemical engineering , carbon fibers , graphene , specific surface area , nitrogen , density functional theory , inorganic chemistry , chemistry , nanotechnology , organic chemistry , composite material , catalysis , computational chemistry , composite number , engineering
Hydrogen physisorption in different carbonaceous materials was investigated in liquid nitrogen (77 K). The total hydrogen adsorption was found to have a linear relationship with the surface area of pores <30 Å. The surface area and porosity of the carbon materials were determined by dinitrogen adsorption at 77 K and density function theory (DFT). The active sites for hydrogen adsorption were investigated and found to be related to the edge orientation of defective graphene micro‐sheet domains.