title: Efficient preparation of highly hydrogenated graphene and its application as a high-performance anode material for lithium ion batteries.
abstract: A novel method has been developed to prepare hydrogenated graphene (HG) via a direct synchronized reduction and hydrogenation of graphene oxide (GO) in an aqueous suspension under (60)Co gamma ray irradiation at room temperature. GO can be reduced by the aqueous electrons (e(aq)(-)) while the hydrogenation takes place due to the hydrogen radicals formed in situ under irradiation. The maximum hydrogen content of the as-prepared highly hydrogenated graphene (HHG) is found to be 5.27 wt% with H/C = 0.76. The yield of the target product is on the gram scale. The as-prepared HHG also shows high performance as an anode material for lithium ion batteries.
authors.affiliation: Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, PRChina.
authors.forename: Wufeng
authors.initials: W
authors.lastname: Chen
authors.forename: Zhiye
authors.initials: Z
authors.lastname: Zhu
authors.forename: Sirong
authors.initials: S
authors.lastname: Li
authors.forename: Chunhua
authors.initials: C
authors.lastname: Chen
authors.forename: Lifeng
authors.initials: L
authors.lastname: Yan
mesh_terms: D000042:Absorption; D011211:Electric Power Supplies; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D007477:Ions; D008094:Lithium / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure
chemical_list: D007477:Ions; D006108:Graphite; D006859:Hydrogen; D008094:Lithium