生物炭
双功能
木质纤维素生物量
热解
材料科学
催化作用
化学
碳纤维
析氧
生物量(生态学)
化学工程
制浆造纸工业
纳米技术
电化学
有机化学
复合数
复合材料
木质素
农学
电极
物理化学
生物
工程类
作者
Linlin Ma,Xiao Hu,Wujun Liu,Hongchao Li,Paul K.S. Lam,Raymond Jianxiong Zeng,Han‐Qing Yu
出处
期刊:Chemosphere
[Elsevier BV]
日期:2021-04-06
卷期号:278: 130508-130508
被引量:57
标识
DOI:10.1016/j.chemosphere.2021.130508
摘要
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. • N, P doped biochar was synthesized via a facile thermochemical method from biomass wastes. • The N, P doped biochar exhibited robust bifunctional electrocatalytic activity. • The unique porous structure and electronic structure were attributed to its excellent activity.
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