Electrochemical performance of Mn3O4 nanorods by N-doped reduced graphene oxide using ultrasonic spray pyrolysis for lithium storage

In Gyeom Kim, Faizan Ghani, Kwan Young Lee, Sehkyu Park, Soonjong Kwak, Hyung Seok Kim, In Wook Nah, Jong Choo Lim

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The crumpled N-doped reduced graphene oxide wrapped Mn3O4 nanorods (Mn-NrGO) composite are synthesized via a combination of spray pyrolysis and a hydrothermal process for lithium ion batteries. The Mn3O4 nanorods are uniformly dispersed in the conductive matrix of crumpled N-doped reduced graphene oxide, forming a uniform wrapped composite and stopping them from restacking, which synergistically enhanced the Li+ ion conductivity. The well-defined Mn3O4 nanorods, strong interaction between Mn3O4 and NrGO, and highly graphitic properties of Mn-NrGO result in superior reversible capacity, long cycle life, and superior rate performance of approximately 1500 mAh/g at 0.1 C after 100 cycles and >660S mAh/g at 1.0 C after 500 cycles.

Original languageEnglish
Pages (from-to)11171-11184
Number of pages14
JournalInternational Journal of Energy Research
Volume44
Issue number14
DOIs
Publication statusPublished - 2020 Nov 1

Keywords

  • anode
  • lithium ion batteries
  • manganese oxide (MnO)
  • nitrogen doped reduced graphene oxide (NrGO)
  • spray pyrolysis

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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