Ultrafast green microwave-assisted synthesis of high-entropy oxide nanoparticles for Li-ion battery applications

Mehdi Kheradmandfard, Hossein Minouei, Nikolai Tsvetkov, Ali Kasebi Vayghan, Seyed Farshid Kashani-Bozorg, Gihwan Kim, Sun Ig Hong, Dae Eun Kim

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, a novel ultrafast facile green microwave-assisted method was developed for the synthesis of high-entropy oxide (HEO) (Mg, Cu, Ni, Co, Zn)O nanoparticles for the first time. The results indicated that all the five metallic elements were uniformly distributed in the single-phase rocksalt structure of the HEO nanoparticles. The particle-size distribution was within the range of 20–70 nm, with the average size of 44 nm. When used as anode materials for Li-ion batteries, the HEO nanoparticles exhibited remarkable lithium storage properties with the impressive stability as was demonstrated during 1000 cycles at 1 A/g. The exceptional advantages of the proposed method in this work, including ultrafast speed (few minutes), low temperature, nanoscale and high-purity products, and low cost, make it an excellent synthesis technique for application in newly developed high-entropy ceramics, particularly for Li-ion batteries.

Original languageEnglish
Article number124265
JournalMaterials Chemistry and Physics
Volume262
DOIs
Publication statusPublished - 2021 Apr 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2020R1A2C2004714). This work was also supported by the BK21 Plus project through the National Research Foundation (NRF) funded by the Ministry of Education of Korea and co-supported by the Korea Research Fellowship Program (2019H1D3A1A01102813) and Future Material Discovery Program (2016M3D1A1023532) through NRF funded by the Ministry of Science and ICT. N. Tsvetkov was supported by Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (2020H1D3A2A02104083). The authors declare no conflict of interest.

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government ( MSIT ) (No. 2020R1A2C2004714 ). This work was also supported by the BK21 Plus project through the National Research Foundation (NRF) funded by the Ministry of Education of Korea and co-supported by the Korea Research Fellowship Program ( 2019H1D3A1A01102813 ) and Future Material Discovery Program ( 2016M3D1A1023532 ) through NRF funded by the Ministry of Science and ICT . N. Tsvetkov was supported by Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT ( 2020H1D3A2A02104083 ). The authors declare no conflict of interest.

Publisher Copyright:
© 2021 Elsevier B.V.

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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