MnO-carbon nanofiber composite material toward electro-chemical N-2 fixation under ambient conditions

Release time:2021-03-15 Hits:

Key Words:AMMONIA-SYNTHESIS; NITROGEN; PERFORMANCE; REDUCTION; ELECTROSYNTHESIS; WATER; NH3

Abstract:The electrocatalytic nitrogen reduction reaction (NRR) under ambient conditions is regarded as a promising substitute approach to the Haber-Bosch process for artificial N-2 fixation to NH3. In this communication, we constructed well-defined one-dimensional MnO nanocrystals encapsulated in carbon nanofibers (MnO-CNF) via an electrospinning method. MnO-CNF behaves as an excellent non-noble-metal NRR electrocatalyst for NH3 synthesis with a faradaic efficiency of 1.52% in 0.1 M Na2SO4 solution under ambient conditions. Remarkably, it attains a high NH3 formation rate of 35.9 g h(-1) mg(cat)(-1) and also shows excellent durability during electrolysis and recycling tests.

Volume:43

Issue:21

Translation or Not:no