Constructing N, P-dually doped biochar materials from biomass wastes for high-performance bifunctional oxygen electrocatalysts

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Xiao Hu
  • Wu-Jun Liu
  • Hong-Chao Li
  • Paul K.S. Lam
  • Raymond Jianxiong Zeng
  • Han-Qing Yu

Detail(s)

Original languageEnglish
Article number130508
Journal / PublicationChemosphere
Volume278
Online published6 Apr 2021
Publication statusPublished - Sep 2021

Abstract

The large scale lignocellulosic biomass wastes could also be regarded as abundantly-available renewable resources, and how to convert them into value-added products via sustainable approaches is still a big challenge. In this work, we demonstrated a facile pyrolysis method to construct N, P-dually doped biochar materials from the lignocellulosic biomass wastes. The as-synthesized N, P-dually doped biochar samples could act as electrocatalysts for oxygen reduction and evolution reactions (ORR/OER), showing excellent catalytic performance and long-term durability, as well as robust tolerance to CO and methanol. The unique hierarchical porous structure, favorable electronic structure modified by the N and P doping, as well as a variety of defect sites induced by the N and P doping into the carbon framework were identified as the main contributions to the prominent catalytic activity of the as-synthesized N, P-dually doped biochar materials. We expect this work would spur more efforts into developing advanced materials from the large scale lignocellulosic biomass wastes.

Research Area(s)

  • Biochar, Biomass wastes, Oxygen evolution reaction, Oxygen reduction reaction, Pyrolysis

Citation Format(s)

Constructing N, P-dually doped biochar materials from biomass wastes for high-performance bifunctional oxygen electrocatalysts. / Ma, Lin-Lin; Hu, Xiao; Liu, Wu-Jun; Li, Hong-Chao; Lam, Paul K.S.; Zeng, Raymond Jianxiong; Yu, Han-Qing.

In: Chemosphere, Vol. 278, 130508, 09.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review