title: Preparation of platinum-decorated porous graphite nanofibers, and their hydrogen storage behaviors.
abstract: In this work, the hydrogen storage behaviors of porous graphite nanofibers (GNFs) decorated by Pt nanoparticles were investigated. The Pt nanoparticles were introduced onto the GNF surfaces using a well-known chemical reduction method. We investigated the hydrogen storage capacity of the Pt-doped GNFs for the platinum content range of 1.3-7.5 mass%. The microstructure of the Pt/porous GNFs was characterized by X-ray diffraction and transmission electron microscopy. The hydrogen storage behaviors of the Pt/GNFs were studied using a PCT apparatus at 298 K and 10 MPa. It was found that amount of hydrogen stored increased with increasing Pt content to 3.4 mass%, and then decreased. This result indicates that the hydrogen storage capacity of porous carbons is based on both their metal content and dispersion rate.
authors.affiliation: Department of Green Chemistry & Environmental Biotechnology, University of Science & Technology, P.O. Box 107, Yuseong, Daejeon 305-600, South Korea.
authors.forename: Byung-Joo
authors.initials: BJ
authors.lastname: Kim
authors.forename: Young-Seak
authors.initials: YS
authors.lastname: Lee
authors.forename: Soo-Jin
authors.initials: SJ
authors.lastname: Park
mesh_terms: D006108:Graphite / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D016062:Porosity; D011312:Pressure; D013499:Surface Properties
chemical_list: D010984:Platinum; D006108:Graphite; D006859:Hydrogen