title: Hydrogen storage materials discovery via high throughput ball milling and gas sorption.
abstract: The lack of a high capacity hydrogen storage material is a major barrier to the implementation of the hydrogen economy. To accelerate discovery of such materials, we have developed a high-throughput workflow for screening of hydrogen storage materials in which candidate materials are synthesized and characterized via highly parallel ball mills and volumetric gas sorption instruments, respectively. The workflow was used to identify mixed imides with significantly enhanced absorption rates relative to Li2Mg(NH)2. The most promising material, 2LiNH2:MgH2 + 5 atom % LiBH4 + 0.5 atom % La, exhibits the best balance of absorption rate, capacity, and cycle-life, absorbing >4 wt % H2 in 1 h at 120 °C after 11 absorption-desorption cycles.
authors.affiliation: Wildcat Discovery Technologies, Inc. , San Diego, California 92121, United States.
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Steven S
authors.initials: SS
authors.lastname: Kaye
authors.forename: Conor
authors.initials: C
authors.lastname: Riley
authors.forename: Doron
authors.initials: D
authors.lastname: Greenberg
authors.forename: Daniel
authors.initials: D
authors.lastname: Galang
authors.forename: Mark S
authors.initials: MS
authors.lastname: Bailey
mesh_terms: D000327:Adsorption; D000577:Amides / Q000737:chemistry*; D005740:Gases / Q000302:isolation & purification*; D057166:High-Throughput Screening Assays; D006859:Hydrogen / Q000302:isolation & purification*; D008094:Lithium / Q000737:chemistry; D008274:Magnesium / Q000737:chemistry; D013499:Surface Properties
chemical_list: D000577:Amides; D005740:Gases; D006859:Hydrogen; D008094:Lithium; D008274:Magnesium