A comprehensive green utilization strategy of lignocellulose from rice husk for the fabrication of high-rate electrochemical zinc ion capacitors

Wenli Zhang, Wenbin Jian, Jian Yin, Xiaoshan Zhang, Caiwei Wang, Xuliang Lin, Yanlin Qin, Ke Lu, Haibo Lin, Tiejun Wang, Xueqing Qiu

Research output: Contribution to journalArticlepeer-review

Abstract

Rice husk is an important biomass residue derived from the production of rice. Rice husk contains silica (10–20 wt%) and lignocellulose (cellulose, 15–25 wt%; lignin, 10–20 wt%). The lignocellulose components in rice husk are potential carbon sources for functional carbon materials. In this work, we propose a general comprehensive green utilization strategy for the preparation of lignin-derived hierarchical porous carbon (LHPC) and cellulose-paper-based separator using the lignin and cellulose components inside rice husk, respectively. The obtained LHPC and cellulose paper separators were used as pivotal components for the fabrication of high-rate electrochemical zinc ion capacitors. Meanwhile, the silica and potassium sources in this comprehensive route were recycled as nano-sized SiO2 particles and pure KCl powders. This work constitutes a general route for the green utilization of rice husk biomass. This work opens a green avenue for the effective utilization of renewable biomasses to develop functional carbon materials and pivotal components of electrochemical energy storage devices.
Original languageEnglish (US)
Pages (from-to)129522
JournalJournal of Cleaner Production
Volume327
DOIs
StatePublished - Oct 29 2021

ASJC Scopus subject areas

  • Environmental Science(all)
  • Strategy and Management
  • Industrial and Manufacturing Engineering
  • Renewable Energy, Sustainability and the Environment

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