Silica from kazakhstan rice husk as an anode material for LIBs

I. Kurmanbayeva, Almagul Mentbayeva, A. Sadykova, A. Adi, Z. Mansurov, Zhumabay Bakenov

Research output: Contribution to journalArticle

Abstract

This paper reports the synthesis of the silica (SiO2) from Kyzylorda rice husk (RH) and investigation of its electrochemical behaviour as an anode material for the lithium-ion battery. Rice husk, considered as agricultural waste material, contains a substantial amount of amorphous silica, carbon, and minor other mineral composition, which have potential industrial and scientific applications. Due to the high theoretical capacity of silicon (4200 mAh g-1) and silicon dioxide (1965 mAh g-1), Si-containing compounds are considered as a promising candidate for a new generation of anode materials for lithium-ion batteries. In this work, the technology of amorphous SiO2 extraction from Kyzylorda region rice husk is developed. The silica powder was obtained by burning the rice husk and treating the obtained ash with the sodium hydroxide and hydrochloric acid. The extracted SiO2 and intermediate products were studied by the SEM, XRD, XRF, XPS, TGA in comparison with commercial silica. The RH of the Kyzylorda region has 12% of Si. The electrochemical characteristics of assembled coin cell type battery were tested by using cyclic voltammetry and galvanostatic charge/discharge cycling. Results show that silica synthesized from agriculture waste has the same performance as commercial analog. The initial discharge capacity of the battery with synthesized silicon dioxide was 1049 mAhg-1. The reversible discharge capacity in the second and subsequent cycles is about 438 mAhg-1.

Original languageEnglish
Pages (from-to)75-81
Number of pages7
JournalEurasian Chemico-Technological Journal
Volume21
Issue number1
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Kazakhstan
rice
Silicon Dioxide
Anodes
anodes
Silica
silicon dioxide
electric batteries
Ashes
lithium
Sodium Hydroxide
Agricultural wastes
cycles
agriculture
Hydrochloric Acid
sodium hydroxides
hydrochloric acid
Silicon
ashes
Hydrochloric acid

Keywords

  • Anode
  • Lithium-ion battery
  • Plant waste
  • Rice husk
  • Silica

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Silica from kazakhstan rice husk as an anode material for LIBs. / Kurmanbayeva, I.; Mentbayeva, Almagul; Sadykova, A.; Adi, A.; Mansurov, Z.; Bakenov, Zhumabay.

In: Eurasian Chemico-Technological Journal, Vol. 21, No. 1, 01.01.2019, p. 75-81.

Research output: Contribution to journalArticle

Kurmanbayeva, I. ; Mentbayeva, Almagul ; Sadykova, A. ; Adi, A. ; Mansurov, Z. ; Bakenov, Zhumabay. / Silica from kazakhstan rice husk as an anode material for LIBs. In: Eurasian Chemico-Technological Journal. 2019 ; Vol. 21, No. 1. pp. 75-81.
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