杨穆Yangmu

教授

博士生导师

性别:男

毕业院校:中科院化学所

学科:材料物理与化学

学历:研究生

学位:博士

所在单位:材料科学与工程学院

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Controllable boosting activity on Co4N by Fe substitution for oxygen evolution reaction and efffcient 5-hydroxymethylfurfural oxidation

发布时间:2025-06-26 点击次数:

发表刊物:Electrochimica Acta
关键字:Electrocatalytic Alkaline electrolysis Oxygen evolution reaction Biomass oxidation valorization Cobalt nitride
摘要:The design of transition metal nitrides with excellent oxygen evolution reaction and 5-hydroxymethylfurfural oxidation reaction (HMFOR) is of great signiffcance to achieve the goal of "carbon peaking and carbon neutrality". Herein, Fe-doped bimetallic nitride FexCo1-x)4N was prepared by a simple electron regulation strategy. The introduction of Fe changes the electronic structure of Co and optimizes the adsorption energies of *OH, reduces the potential barrier for the generation of *OOH as a potential-determining step and thus increases the intrinsic OER activity of Co4N. In addition, Fe substitution of some of the Co atoms gives (FexCo1-x)4N a higher electrochemical active surface area, which accelerates the electron transfer efffciency and improves the electrical conductivity. The overpotential for (FexCo1-x)4N-0.9 to reach a current density of 10 mA cm− 2 in 1 M KOH is only 271 mV. When in 1 M KOH + 50 mM HMF condition, (FexCo1-x)4N-0.9 requires only 1.37 V to reach a current density of 10 mA cm− 2 . This work provides practical guidance for developing bifunctional transition metal electrocatalysts with excellent OER and HMFOR activity.
合写作者:Zhaokun Wang,Liang Chu
第一作者:Liyan Wang
论文类型:期刊论文
通讯作者:Mu Yang,Ge Wang
卷号:492,
页面范围:144362.
是否译文:
发表时间:2024-04-28
收录刊物:SCI