Open AccessFinal Report for DOE Project Number: DE-FG02-05ER46241
Author(s) -
Gang Chen,
M. S. Dresselhaus,
Costas P. Grigoropoulos,
Samuel S. Mao,
X.D. Xiang,
Taofang Zeng
Publication year - 2010
Language(s) - English
Resource type - Reports
DOI - 10.2172/973501
Subject(s) - nanoporous , metastability , hydrogen storage , characterization (materials science) , materials science , hydride , nanotechnology , hydrogen , nanostructure , hydrogen production , non equilibrium thermodynamics , catalysis , chemical engineering , chemistry , organic chemistry , physics , thermodynamics , engineering
Hydrogen storage is the most challenging task for the hydrogen economy. We established a multidisciplinary research program for high throughput combinatorial synthesis and characterization of novel nanoporous and metastable complex hydrides, coupled to fundamental material studies including electronic, structural and kinetic transport modeling, and pump-probe experiments. Our research is based the concept of hybrid nanostructures that store hydrogen by a combination of chemi- and physorption: atomic hydrogen is stored in metastable hydrides while molecule hydrogen is stored in the nanometer pores of the hydrides. Metastable nanostructured hydride has been achieved by introducing structural and compositional disorders through high throughput elemental substitution/doping, catalyst addition, and nonequilibrium processing. Fast screening compatible with the combinatorial synthesis was achieved by combining X-ray structural characterization with the development of a laser-based microbalance. Manufacturing of nanoporous metahydrides that are identified as promising by the combinatorial synthesis has been explored along with the materials search