Fullerene-derived boron-doped defective nanocarbon for highly selective H_(2)O_(2) electrosynthesis  

作　　者：Wangqiang Shen Chang Zhang Muneerah Alomar Zhiling Du Zepeng Yang Junjie Wang Guangqing Xu Jian Zhang Jun Lv Xing Lu 

机构地区：[1]School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China [2]School of Energy and Environmental,Hebei University of Engineering,Handan 056038,China [3]School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China [4]Department of Physics,College of Sciences,Princess Nourah bint Abdulrahman University,P.O.Box 84428,Riyadh 11671,Saudi Arabia

出　　处：《Nano Research》2024年第3期1217-1224,共8页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.22001084,21925104,and 92261204);Princess Nourah bint Abdulrahman University Researchers Supporting Project number(PNURSP2023R398);Princess Nourah bint Abdulrahman University,Riyadh,Saudi Arabia.

摘　　要：Electrochemical production of hydrogen peroxide(H_(2)O_(2))via the two-electron(2e-)pathway of oxygen reduction reaction(ORR)supplies an auspicious alternative to the current industrial anthraquinone process.Nonetheless,it still lacks efficient electrocatalysts to achieve high ORR activity together with 2e-selectivity simultaneously.Herein,a boron-doped defective nanocarbon(B-DC)electrocatalyst is synthesized by using fullerene frameworks as the precursor and boric oxide as the boron source.The obtained B-DC materials have a hierarchical porous structure,befitting boron dopants,and abundant topological pentagon defects,exhibiting a high ORR onset potential of 0.78 V and a dominated 2e-selectivity(over 95%).Remarkably,when B-DC electrocatalyst is employed in a real device,it achieves a high H_(2)O_(2) yield rate(247 mg·L^(-1)·h^(-1)),quantitative Faraday efficiency(~100%),and ultrafast organic pollutant degradation rate.The theoretical calculation reveals that the synergistic effect of topological pentagon defects and the incorporation of boron dopants promote the activation of the O_(2) molecule and facilitates the desorption of oxygen intermediate.This finding will be very helpful for the comprehension of the synergistic effect of topological defects and heteroatom dopants for boosting the electrocatalytic performance of nanocarbon toward H_(2)O_(2) production.

关 键 词：FULLERENE electrochemical hydrogen peroxide production oxygen reduction reaction carbon nanomaterials 

分 类 号：TB383[一般工业技术—材料科学与工程]