Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2023, Vol. 36 ›› Issue (6): 48-56.DOI: 10.12422/j.issn.1006-396X.2023.06.005

• Research and Development • Previous Articles     Next Articles

Study on Microstructure Regulation and Sodium Storage Performance of Reduced Graphene Oxide

Dawei SHENG(), DIN HASEEB UD, Jiyuan ZHANG, Xiaoxu LIU()   

  1. School of Material Science and Engineering,Shaanxi University of Science and Technology,Xi'an Shaanxi 710021,China
  • Received:2023-07-20 Revised:2023-09-23 Published:2023-12-25 Online:2024-01-03
  • Contact: Xiaoxu LIU

还原氧化石墨烯微观结构调控及储钠性能研究

盛大伟(), DIN HASEEB UD, 张济原, 刘晓旭()   

  1. 陕西科技大学 材料科学与工程学院,陕西 西安 710021
  • 通讯作者: 刘晓旭
  • 作者简介:盛大伟(1998⁃),女,博士研究生,从事钠离子电池负极材料方面的研究;E⁃mail:sdw724148@icloud.com
  • 基金资助:
    国家自然科学基金项目(52250710161)

Abstract:

The development of efficient anode materials for carbon?based sodium ion batteries(SIBs) is a hot research topic. The prereduced graphene oxide(GO) was annealed at different temperatures to obtain wavy reduced graphene oxide(rGO) with different interlayer spacings for sodium?ion batteries(SIBs) anodes, and the electrolyte was further regulated to explore the relationship between the microstructure of graphene and sodium storage performance and sodium storage mechanism. The rGO anode after balancing the tuning layer spacing and conductivity shows a high initial coulombic efficiency of 82% in SIBs and excellent cycle stability of 93% capacity retention after 100 cycles through the sodium storage mechanism of intercalation and solvation Na+ co?adsorption in ether electrolyte.

Key words: Reduced graphene oxide, Sodium ion battery, Anode, Interlayer spacing

摘要:

开发高效的碳基钠离子电池(SIBs)负极材料是目前的研究热点。采用不同退火温度,使预还原后的氧化石墨烯(GO)获得具有不同层间距的波浪状还原氧化石墨烯(rGO)谱,并将其应用于SIBs负极,通过优化电解液,探究了rGO微观结构与储钠性能、储钠机制的关系。经过调谐层间距并与电导率权衡后,rGO负极在醚类电解液中通过插层和溶剂化Na+共吸附的储钠机制,在SIBs中显示出较高的首次库伦效率(82%),经过100次循环后容量保持率高达93%,说明rGO负极具有优异的循环稳定性。

关键词: 还原氧化石墨烯, 钠离子电池, 负极, 层间距

CLC Number: 

Cite this article

Dawei SHENG, DIN HASEEB UD, Jiyuan ZHANG, Xiaoxu LIU. Study on Microstructure Regulation and Sodium Storage Performance of Reduced Graphene Oxide[J]. Journal of Petrochemical Universities, 2023, 36(6): 48-56.

盛大伟, DIN HASEEB UD, 张济原, 刘晓旭. 还原氧化石墨烯微观结构调控及储钠性能研究[J]. 石油化工高等学校学报, 2023, 36(6): 48-56.