Piper longum Extract-Mediated Green Synthesis of Porous Cu2O:Mo Microspheres and Their Superior Performance as Active Anode Material in Lithium-Ion Batteries

Paskalis Sahaya Murphin Kumar, Ala'A H. Al-Muhtaseb, Gopalakrishnan Kumar, Ajayan Vinu, Wangsoo Cha, Julio Villanueva Cab, Umapada Pal, Siva Kumar Krishnan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Fabrication of nano- and microstructure-based anodes capable of accommodating the lithiation-induced strain, high specific capacity, and longer cycling stability is the principal challenge for developing next-generation lithium-ion batteries (LIBs) with higher energy density. Herein, we report a green route for fabricating porous molybdenum-doped cuprous oxide (Cu2O:Mo) microspheres of high specific surface area. The porous Cu2O:Mo microspheres have been utilized as active anode materials in LIBs, revealing excellent electrochemical performance. The electrodes fabricated with the porous Cu2O:Mo microspheres yielded outstanding Li-ion uptake performance, with a specific capacity of 1128 mAh g-1 at 0.1 Ag-1 and enhanced rate performance, and cycling stability (1082 mAh g-1 at 0.1 Ag-1 after 100 charge-discharge cycles). Enhanced specific capacity, stable cycling stability, and excellent rate capability of the fabricated electrodes indicate the porous Cu2O:Mo microspheres are potential anode material for fabricating next-generation high-performance LIBs. The synthetic approach adapted for fabricating the porous Cu2O:Mo microspheres is facile, relatively greener, and low-cost, which can be utilized for fabricating other metal oxide-based porous microstructures for application in energy storage devices.

Original languageEnglish
Pages (from-to)14557-14567
Number of pages11
JournalACS Sustainable Chemistry and Engineering
Issue number38
Publication statusPublished - Sep 28 2020
Externally publishedYes


  • Anode material
  • CuO:Mo microspheres
  • Green synthesis
  • Lithium-ion batteries
  • Porous structure

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment

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