title: 3D graphene supported MoO2 for high performance binder-free lithium ion battery.
abstract: In this work, we report the synthesis of MoO2 nanoparticles grown on three dimensional graphene (3DG) via the reduction of α-MoO3 nanobelts through a facile chemical vapor deposition (CVD) approach under argon protection gas environment. In this synthesis approach, the presence of hydrophobic 3DG promoted the Volmer-Weber growth of MoO2 nanoparticles (30-60 nm). The as-prepared MoO2-3DG nanocomposite was directly used as a binder-free anode electrode for lithium ion batteries (LIBs) without additives and exhibited excellent electrochemical performance. It delivered high reversible capacities of 975.4 mA h g(-1) and 537.3 mA h g(-1) at the current densities of 50 and 1000 mA g(-1), respectively. Moreover, the electrode also showed an increased capacity from 763.7 mA h g(-1) to 986.9 mA h g(-1) after 150 discharge and charge cycles at a current density of 200 mA g(-1). The enhanced electrochemical performance of MoO2-3DG nanocomposite electrode may be attributed to the synergistic effects of MoO2 nanoparticles and 3DG layers. This facile CVD synthesis process presents a feasible route for large-scale production of high performance, environmentally friendly electrode. In addition, this process also has the potential of being utilized in other materials for energy storage devices application.
authors.affiliation: Pillar of Engineering Product Development, Singapore University of Technology and Design, 20 Dover Drive, Singapore 138682. yanghuiying@sutd.edu.sg.
authors.forename: Zhi Xiang
authors.initials: ZX
authors.lastname: Huang
authors.forename: Ye
authors.initials: Y
authors.lastname: Wang
authors.forename: Yun Guang
authors.initials: YG
authors.lastname: Zhu
authors.forename: Yumeng
authors.initials: Y
authors.lastname: Shi
authors.forename: Jen It
authors.initials: JI
authors.lastname: Wong
authors.forename: Hui Ying
authors.initials: HY
authors.lastname: Yang