%0 Journal Article
%T Encapsulation of Iron Nitride by Fe每N每C Shell Enabling Highly Efficient Electroreduction of CO2 to CO
%J -
%D 2018
%R https://doi.org/10.1021/acsenergylett.8b00474
%X The conversion of CO2 into valuable chemicals has captured extensive attention for its significance in energy storage and greenhouse gas alleviation, but the development of cost-effective electrocatalysts with high activity and selectivity remains the bottleneck. Herein, we designed a Fe每N每C nanofiber catalyst featuring a core每shell structure consisting of iron nitride nanoparticles encapsulated within Fe and N codoped carbon layers that can efficiently catalyze CO2 to CO with nearly 100% selectivity, high faradic efficiency (‵95%), and remarkable durability at ˋ0.53 V versus reversible hydrogen electrode. Theoretical calculations reveal that the introduction of an iron nitride core can facilitate the CO intermediate desorption from the Fe and N codoped shell, thus enhancing the catalytic performance of CO2 reduction. This work presents an ideal approach to rationally design and develop transition-metal and N codoped carbon materials for efficient CO2 reduction
%U https://pubs.acs.org/doi/10.1021/acsenergylett.8b00474