MOF‐Derived Cobalt Phosphide/Carbon Nanocubes for Selective Hydrogenation of Nitroarenes to Anilines

Abstract

Transition-metal phosphides have received tremendous attention during the past few years because they are earth-abundant, cost-effective, and show outstanding catalytic performance in several electrochemically driven conversions including hydrogen evolution, oxygen evolution, and water splitting. As one member of the transition-metal phosphides, Co P-based materials have been widely explored as electrocatalyts; however, their application in the traditional thermal catalysis are rarely reported. In this work, cobalt phosphide/carbon nanocubes are designed and their catalytic activity for the selective hydrogenation of nitroarenes to anilines is studied. A high surface area metal-organic framework (MOF), ZIF-67, is infused with red phosphorous, and then pyrolysis promotes the facile production of the phosphide-based catalysts. The resulting composite, consisting of Co P/CN nanocubes, is shown to exhibit excellent catalytic performance in the selective hydrogenation of nitroarenes to anilines. To the best of our knowledge, this is the first report showing catalytic activity of a cobalt phosphide in nitroarenes hydrogenation.

Electrocatalytic water splitting at nitrogen-doped carbon layers-encapsulated nickel cobalt selenide

“…Although these strategies could improve the charge transfer, the direct deposition of metal selenides on the outer surface of carbon materials usually suffer from the aggregation or the abscission of catalysts [32,33] . In this work, two strategies of alloying and encapsulation of CoNiSe into nitrogen-doped carbon layers (CoNiSe/NC) were mixed to improve electrocatalytic activity obviously.…”

Applications of Metal–Organic‐Framework‐Derived Carbon Materials

“…The excellent electrochemical properties of MOF‐derived carbon materials make it a great material in sensing . For instance, due to their abilities for selective absorbing single‐stranded DNA (ssDNA) and quenching the labeled fluorescent dye, carbon materials were claimed to be sensing platforms for DNA detection .…”

Recent Advances of MOFs and MOF‐Derived Materials in Thermally Driven Organic Transformations

“…In this work, novel phosphide‐based Co 2 P/CN x nanocubes were prepared using ZIF‐67 infused with red phosphorous as a precursor. Following a pyrolysis step, the Co 2 P/CN x catalyst shows satisfying activity, selectivity, stability, and recyclability for the thermally driven hydrogenation of a variety of nitroarenes to anilines (Figure ) . It is thought that this discovery will provide a new, interesting platform for the development of a variety of new transition‐metal compounds applicable in a host of traditional catalytic processes.…”

“…(B) Bright‐field and high‐angle annular darkfield scanning TEM (HAADF‐STEM) image of the Co 2 P/CN x nanocubes. (C) Hydrogenation reactions of the substituted nitroarenes with Co 2 P/CN x as the catalyst …”