Combining Zn 0.76 Co 0.24 S with S-doped graphene as high-performance anode materials for lithium- and sodium-ion batteries

Nanotechnology Reviews

article

Yemao Lin¹  Jintao Huang¹  Ludi Shi¹  Guangtao Cong¹  Caizhen Zhu¹  Jian Xu¹ 

[1]Institute of Low-dimensional Materials Genome Initiative, College of Chemistry and Environmental Engineering, Shenzhen University

关键词: Zn0.76Co0.24S@N/S-rGO;    sodium-ion batteries;    lithium-ion batteries;    anode materials;   

DOI  :  10.1515/ntrev-2020-0091

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

An easy and facile hydrothermal method is presented to synthesize hybrid materials of hollow mesoporous Zn 0.76 Co 0.24 S nanospheres anchored on reduced graphene oxide (rGO) sheets (Zn 0.76 Co 0.24 S@N/S-rGO), in which the obtained Zn 0.76 Co 0.24 S nanospheres are composed of numerous nanoparticles. Being evaluated as anode materials for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs), the Zn 0.76 Co 0.24 S@N/S-rGO composites exhibited a high reversible capacity of 804 and 605 mA h g −1 at the current density of 1 A g −1 after 500 cycles for LIBs and SIBs, respectively. The excellent electrochemical performance of Zn 0.76 Co 0.24 S@N/S-rGO composites originates from the synergistic effect between hollow Zn 0.76 Co 0.24 S nanospheres and reduction graphene, as well as the void spaces between the neighbouring nanoparticles of Zn 0.76 Co 0.24 S providing large contact areas with electrolyte and buffer zone to accommodate the volume variation during the cycling process.

【 授权许可】

CC BY