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:否
发表时间:2024-04-28
收录刊物:SCI