Preparation and NRR application of transition metal nanosheets on carbon nanofiber membranes

Abstract

Electrocatalytic Nitrogen Reduction (NRR) is a green and sustainable method of artificial nitrogen fixation, but it is still a serious challenge due to the lack of efficient and selective catalysts. In this paper, carbon nanofiber membranes (NFMs) were prepared by electrospinning technology as the skeleton structure of electrocatalytic materials, and Sn doped MoSe2 nanosheets on carbon NFMs (Sn doped MoSe2@C NFMs) were synthesized by a one-step hydrothermal synthesis method. Compared with pure MoSe2@C NFMs, Sn doped MoSe2@C NFMs will create vacancies, increase the reactive sites of the NRR catalyst, and make Sn doped MoSe2@C NFMs have better ammonia yield (1.61 × 10−10 mol s1 cm−2) and Faraday efficiency (14.51%). This research provides a new idea for designing the structure design of NRR catalyst.