Direct Conversion of Rice Husks to Nanostructured SiC/C for CO2 Photoreduction

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Article number2001560
Journal / PublicationAdvanced Materials
Volume32
Issue number29
Online published11 Jun 2020
Publication statusPublished - 23 Jul 2020
Externally publishedYes

Abstract

A one-step and template-free synthesis of a SiC nanowires/C (SiC-NW/C) composite from rice husks (RHs) is realized via a molten-salt-assisted electrochemical method. The process integrates simultaneously carbonization, electrodeoxidation, nanostructuring, and self-purification for converting RHs to a SiC-NW/C hybrid that is assembled from SiC NWs embedded in porous N-doped graphitic carbon with strong coupling. The SiC-NW/C nanostructure enables efficient CO2 adsorption and fast separation and transfer of charge carriers. Benefiting from the structural and compositional merits, the SiC-NW/C composite shows superior activity for photoreduction of CO2 to CO, in the absence of any additional cocatalysts or sacrificial agents. The process proposed herein might help to bridge a closed-loop carbon cycle in the whole production–utilization of biomass. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Research Area(s)

  • biomass utilization, CO2 reduction, molten salt electrolysis, rice husks, SiC

Citation Format(s)

Direct Conversion of Rice Husks to Nanostructured SiC/C for CO2 Photoreduction. / Weng, Wei; Wang, Sibo; Xiao, Wei et al.
In: Advanced Materials, Vol. 32, No. 29, 2001560, 23.07.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review