Spin Manipulation of Co sites in CoS/NbCT Mott-Schottky Heterojunction for Boosting the Electrocatalytic Nitrogen Reduction Reaction.

Regulating the adsorption of an intermediate on an electrocatalyst by manipulating the electron spin state of the transition metal is of great significance for promoting the activation of inert nitrogen molecules (N) during the electrocatalytic nitrogen reduction reaction (eNRR). However, achieving this remains challenging. Herein, a novel 2D/2D Mott-Schottky heterojunction, CoS/NbCT-P, is developed as an eNRR catalyst.

A Robust n-n Heterojunction: CuN and BN Boosting for Ambient Electrocatalytic Nitrogen Reduction to Ammonia.

An n-n type heterojunction comprising with CuN and BN dual active sites is synthesized via in situ growth of a conductive metal-organic framework (MOF) [Cu (HITP) ] (HITP = 2,3,6,7,10,11-hexaiminotriphenylene) on hexagonal boron nitride (h-BN) nanosheets (hereafter denoted as Cu (HITP) @h-BN) for the electrocatalytic nitrogen reduction reaction (eNRR). The optimized Cu (HITP) @h-BN shows the outstanding eNRR performance with the NH production of 146.2 µg h mg and the Faraday efficiency of 42.

Catkin-derived mesoporous carbon-supported molybdenum disulfide and nickelhydroxyloxide hybrid as a bifunctional electrocatalyst for driving overall water splitting.

In this work, a two-dimensional heterostructure of molybdenum disulfide (MoS) and nickelhydroxyloxide (NiOOH) nanosheets supported on catkin-derived mesoporous carbon (C-MC) was constructed and exploited as an efficient electrocatalyst for overall water splitting. The C-MC nanostructure was prepared by pyrolyzing biomass material of catkin at 600 °C in N atmosphere. The C-MC network exhibited hollow nanotube structure and had a large specific surface area, comprising trace nitrogen and a large amount of oxygen vacancies.