Hierarchical Co2P microspheres assembled from nanorods grown on reduced graphene oxide as anode material for Lithium-ion batteries

Zhang, Chi, Jiao, Guanghua, Kong, Fanjun, Wang, Jian, Tao, Shi, Zhang, Lei, Qian, Bin and Chao, Yimin ORCID: https://orcid.org/0000-0002-8488-2690 (2018) Hierarchical Co2P microspheres assembled from nanorods grown on reduced graphene oxide as anode material for Lithium-ion batteries. Applied Surface Science, 459. pp. 665-671. ISSN 0169-4332

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Abstract

Transition metal phosphides (TMPs) have been studied as promising electrodes for energy storage and conversion due to their large theoretical capacities and high activities. Herein, a hierarchically structured Co2P coupling with the reduced graphene oxide (RGO) composite (Co2P/RGO) was synthesized by a simple solid state method for Li storage. The Co2P/RGO hybrid composite exhibits a high reversible capacity of 61 mAh g−1 at 60 mA g−1, good rate capability of 327 mAh g−1 at 3000 mA g−1 and long cycle life (397 mAh g−1 at 500 mA g−1 for after 1000 cycles). The excellent electrochemical performance can be attributed to the synergistic effect of Co2P micro/nano architecture and graphene modulation, which provide more activity sites for Li+-ions and maintain the structural integrity of active material. This work may provide a new path for preparation of other metal phosphides as potential electrode materials for application in energy storage fields.

Item Type:	Article
Uncontrolled Keywords:	cobalt phosphide,graphene,hierarchical structure,anode,lithium-ion batteries,sdg 7 - affordable and clean energy ,/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy
Faculty \ School:	Faculty of Science > School of Computing Sciences Faculty of Science > School of Chemistry
UEA Research Groups:	Faculty of Science > Research Groups > Chemistry of Materials and Catalysis Faculty of Science > Research Groups > Energy Materials Laboratory
Related URLs:	https://linkinghub.elsevier.com/retrieve...
Depositing User:	LivePure Connector
Date Deposited:	26 Sep 2018 15:30
Last Modified:	22 Oct 2022 04:05
URI:	https://ueaeprints.uea.ac.uk/id/eprint/68366
DOI:	10.1016/j.apsusc.2018.08.043

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