Pillared Graphene: A New 3-D Network Nanostructure for Enhanced Hydrogen Storage

• Published in: Nano letters Vol. 8; no. 10; pp. 3166 - 3170
• Main Authors: Dimitrakakis, Georgios K, Tylianakis, Emmanuel, Froudakis, George E
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01.10.2008
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties; Materials science; Physics; Specific materials; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Hydrogen storage; Doped materials; Lithium; Nanoporous materials; Pillared structure; Nanostructures; Carbon; Pore size; Graphene; Experimental design; Ab initio calculations; Surface area; Microstructure
• ISSN: 1530-6984; 1530-6992
• DOI: 10.1021/nl801417w

A multiscale theoretical approach was used to investigate hydrogen storage in a novel three-dimensional carbon nanostructure. This novel nanoporous material has by design tunable pore sizes and surface areas. Its interaction with hydrogen was studied thoroughly via ab initio and grand canonical Monte Carlo calculations. Our results show that, if this material is doped with lithium cations, it can store up to 41 g H2/L under ambient conditions, almost reaching the DOE volumetric requirement for mobile applications.