Plasmonic MoO₂ embedded MoNi₄ nanosheets prepared by NiMoO₄ transformation for visible-light-enhanced 4-nitrophenol reduction

Abstract

Plasmonic MoO2 embedded MoNi4 nanosheets have been synthesized by reductive transformation of NiMoO4 and used as a catalyst in the light-enhanced 4-nitrophenol reduction reaction.

A smart strategy of “laser-direct-writing” to achieve scalable fabrication of self-supported MoNi4/Ni catalysts for efficient and durable hydrogen evolution reaction

“…In addition, the synthesis of pure MoNi 4 phases remains a challenge since the as-formed products are usually accompanied by the generation of many by-products (e.g., MoO 3 or NiMoO 4 ). 23,24,26 Moreover, durable HER electrodes under high current operation should be carefully considered. The commercial electrodes for water-alkali splitting usually need to perform at high current densities ranging from 200 to 400 mA cm 2 , and strong adhesion between the catalyst coating and metal substrate is required under the inuence of violent current and airow.…”

“…19–24 Generally, the traditional synthesis procedures of MoNi 4 electrocatalysts involve a two-step hydrothermal reaction and calcination (H 2 /Ar atmosphere) approach. 18–20,25–27 Such a process is usually performed in the limited inner volume of a Teflon autoclave under rigorous calcination conditions, which greatly restricts the large-scale fabrication of electrodes for industrial applications. In addition, the synthesis of pure MoNi 4 phases remains a challenge since the as-formed products are usually accompanied by the generation of many by-products ( e.g.…”