One-pot supercritical water synthesis of Bi2MoO6-RGO 2D heterostructure as anodes for Li-ion batteries

Manjunath Shetty, Christian Schüßler, Mahesh Shastri, Chethan Sabbanahalli, C. P. Chitrabhanu, M. Murthy, S. Jagadeesh Babu, Takaaki Tomai, K. S. Anantharaju, Prasanna D. Shivaramu, Dinesh Rangappa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Two dimensional (2D) materials stacked with Van der waals bonding to obtain a heterostructure have always generated tailored physical and chemical properties. In this paper, the development and application of single-phase 2D Bi2MoO6-reduced graphene oxide (BMO-RGO) heterostructure by one-pot supercritical water (SCW) method is reported for the first time. The as-synthesized nanocomposite of BMO-RGO with single-phase orthorhombic crystal structure is confirmed by XRD. The 2D nanoflake morphology was observed under transmission electron microscopy (TEM). X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and Fourier transform infrared spectroscopy is performed to confirm the presence of BMO-RGO, RGO, and other functional groups, respectively. The specific capacities obtained through charge-discharge measurements from BMO and BMO-RGO heterostructure nanocomposites are compared and the optimization of RGO wt% is established. After 50 cycles, the capacity retention is around 202 mA h g−1 for BMO with 24 wt% RGO (BMO-24RGO) nanocomposite. This value is higher in comparison to pure BMO nanoflakes which have a capacity retention of 25 mA h g−1. These results show the influence of RGO content on the performance of electrochemical measurements when compared to pure BMO and BMO-24RGO electrodes. One-pot SCW synthesis is found to be a reliable method for the synthesis of BMO-RGO nanocomposite.

Original languageEnglish
Pages (from-to)10274-10283
Number of pages10
JournalCeramics International
Volume47
Issue number7
DOIs
Publication statusPublished - 2021 Apr 1

Keywords

  • Anodes
  • BiMoO nanosheets
  • Lithium-ion batteries
  • RGO nanocomposite
  • Supercritical water

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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