Invar alloy@nitrogen doped carbon nanotubes as efficient bifunctional catalyst for lithium-oxygen batteries

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Tianwei Li
  • Huangxu Li
  • Hongzhong Li
  • Yangyang Xie
  • Zhian Zhang

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number156199
Journal / PublicationJournal of Alloys and Compounds
Volume844
Online published29 Jun 2020
Publication statusOnline published - 29 Jun 2020

Abstract

An invar alloy@nitrogen doped carbon nanotubes (Fe–36Ni@NCNTS) material is synthesized and applied as a cathode catalyst in lithium-oxygen batteries. The Fe–36Ni@NCNTS holds a three-dimensional network structure, providing a specific surface area of 106.7 m2 g−1, which could offer numerous active sites and provide channels for mass transfer. Lithium-oxygen batteries assembled by Fe–36Ni@NCNTS exhibit enhanced performance, with a specific capacity of over 6500 mhA g−1 and more than 60 cycles at a restricted capacity of 500 mAh g−1. Moreover, the charge overpotential for Fe–36Ni@NCNTS electrodes is extremely low (ca. 1.15 V). This work provides a new strategy for efficient catalysts in lithium-oxygen batteries.

Research Area(s)

  • Carbon nonotubes, Catalyst, Invar alloy, Lithium-air batteries, Nanocomposites