title: Catalyst-free direct growth of a single to a few layers of graphene on a germanium nanowire for the anode material of a lithium battery.
abstract: Direct growth of a single to a few layers of graphene on a germanium nanowire (Gr/Ge NW; see picture) was achieved by a metal-catalyst-free chemical vapor deposition (CVD) process. The Gr/Ge NW was used as anode in a lithium ion battery. This material has a specific capacity of 1059 mA h g(-1) at 4.0 C, a long cycle life over 200 cycles, and a high capacity retention of 90%.
authors.affiliation: Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology, San 31, Hyoja-Dong, Nam-Gu, Pohang 790-784, Korea.
authors.forename: Hyungki
authors.initials: H
authors.lastname: Kim
authors.forename: Yoonkook
authors.initials: Y
authors.lastname: Son
authors.forename: Chibeom
authors.initials: C
authors.lastname: Park
authors.forename: Jaephil
authors.initials: J
authors.lastname: Cho
authors.forename: Hee Cheul
authors.initials: HC
authors.lastname: Choi