Preparation of platinum-decorated porous graphite nanofibers, and their hydrogen storage behaviors.
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.
Kim
Byung-Joo
BJ
Department of Green Chemistry & Environmental Biotechnology, University of Science & Technology, P.O. Box 107, Yuseong, Daejeon 305-600, South Korea.
Lee
Young-Seak
YS
Park
Soo-Jin
SJ
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
D010984:Platinum; D006108:Graphite; D006859:Hydrogen