Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 43, Issue 16, Pages 8018-8025Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2018.03.078
Keywords
Reduced graphene oxide; Nitrogen/boron doping; Pd-Co alloy nanoparticles; Hydrogen storage; Spillover mechanism
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Funding
- DST-INSPIRE fellowship from DST, Government of India
- DRDO [ERIP/ER/RIC/2016/02/M/01/1680]
- Department of Science and Technology (DST) [SR/NM/NAT/02-2005]
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In order to harness the potential of hydrogen as an alternative energy carrier, overcoming the barrier related to its storage is of utmost importance. In this direction, it has been shown that dissociation of hydrogen molecules into atoms followed by their adsorption onto high surface area nanomaterials like reduced graphene oxide is a promising pathway. In the present study, we have exploited this pathway, commonly known as the spillover mechanism and achieved a hydrogen storage capacity of similar to 4.6 wt% at 30 bar and 25 degrees C in Pd3Co decorated boron doped graphene composite. We demonstrate that optimum loading of transition metal alloy nanoparticles coupled with heteroatom (nitrogen or boron) doped graphene support is an efficient, easy and cost effective avenue towards meeting the US department of energy (DOE) targets for gravimetzic hydrogen storage capacity at room temperature and moderate pressures. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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