title: Facile preparation of a cobalt hybrid/graphene nanocomposite by in situ chemical reduction: high lithium storage capacity and highly efficient removal of Congo red.
abstract: We report a facile approach to prepare a cobalt hybrid/graphene (Co/G) nanocomposite via a general one-pot hydrothermal synthesis. NaBH4 is used as the reducing agent. Co/G nanocomposite possesses narrow size-distribution and good dispersion, providing tremendous potential for energy and environment applications. As a proof of concept, we demonstrate the use of the Co/G nanocomposite in a lithium-ion battery and an adsorbent for Congo red (CR), respectively. More importantly, more than 97% of capacity retention (605 mAh g(-1)) is retained after 50 cycles, indicative of high charge/discharge reversibility of the Co/G nanocomposite electrode. Furthermore the CR removal ability of the Co/G nanocomposite can reach 934.9 mg g(-1).
authors.affiliation: Key Laboratory of Automobile Materials (Jilin University), Ministry of Education and School of Materials Science and Engineering, Jilin University, Changchun 130022, China.
authors.forename: Lixia
authors.initials: L
authors.lastname: Wang
authors.forename: Jianchen
authors.initials: J
authors.lastname: Li
authors.forename: Chunsheng
authors.initials: C
authors.lastname: Mao
authors.forename: Lishu
authors.initials: L
authors.lastname: Zhang
authors.forename: Lijun
authors.initials: L
authors.lastname: Zhao
authors.forename: Qing
authors.initials: Q
authors.lastname: Jiang