N掺杂生物质炭支撑FeN-N-C催化剂及高效氧还原性能  

N-doped biomass carbon supported FeN-N-C catalysts for efficient oxygen reduction reaction

作　　者：刁金香[1] 张超[1] 张玉竹 刘肖杰 Diao Jin-xiang;Zhang Chao;Zhang Yu-zhu;Liu Xiao-jie(Department of Aviation Maintenance Engineering,Aeronautical Polytechnic Institute,Shaanxi Xi’an 710089,China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry(Ministry of Education),College of Chemistry&Materials Science,Northwest University,Shaanxi Xi’an 710069,China)

机构地区：[1]西安航空职业技术学院航空维修工程学院,陕西西安710089 [2]西北大学合成与天然功能分子化学教育部重点实验室/化学与材料科学学院,陕西西安710069

出　　处：《炭素技术》2022年第2期40-44,共5页Carbon Techniques

基　　金：国家自然科学基金面上项目(No.22075227);陕西省自然科学基金项目(2021JQ-889)。

摘　　要：合成优于Pt/C性能的高效非贵金属催化剂仍旧是挑战。通过热处理生物质炭和硝酸铁的前驱体制备了一种新的高活性ORR电催化剂,FeN纳米颗粒分散在N掺杂的生物质炭上,所制备的FeN-N-C电催化剂表现出色的ORR活性,在0.1 mol/L KOH溶液中的半波电压为0.72 V,起始电压为0.87 V。FeN-N-C在碱性溶液中表现出优异的ORR活性。Synthesis of highly efficient nonprecious metal electrocatalysts for the oxygen reduction reaction(ORR)superior to platinum(Pt)is still a big challenge.Herein,a new highly active ORR electrocatalyst is reported based on the FeN-N-C nanoparticles supported on the N-doped biomass-based carbon through simple annealing a mixture of N-doped biomass carbon and ferric nitrate.The as-prepared FeN-N-C electrocatalyst exhibits outstanding ORR activity with half-wave potential of 0.72 V and initial voltage of0.87 V in 0.1 mol/L KOH solution.This makes FeN-N-C an outstanding electrocatalyst for ORR in alkaline solution.

关 键 词：FeN-N-C N掺杂生物质炭 电催化剂 氧还原反应 

分 类 号：O643.36[理学—物理化学] TM242[理学—化学]