Final Report for DOE Project Number: DE-FG02-05ER46241

Gang Chen ; Mildred S. Dresselhaus ; Costas P. Grigoropoulos ; Samuel S. Mao ; Xiaodong Xiang ; Taofang Zeng

关键词: Screening;    Nanostructured Materials;    Hydrogen Storage;   

DOI  :  10.2172/973501
RP-ID  :  Final Report for DOE Project Number: DE-FG02-05ER46241
PID  :  OSTI ID: 973501

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

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.