Molybdenum-Containing Metalloenzymes and Synthetic Catalysts for Conversion of Small Molecules

Abstract

The energy deficiency and environmental problems have motivated researchers to develop energy conversion systems into a sustainable pathway, and the development of catalysts holds the center of the research endeavors. Natural catalysts such as metalloenzymes have maintained energy cycles on Earth, thus proving themselves the optimal catalysts. In the previous research results, the structural and functional analogs of enzymes and nano-sized electrocatalysts have shown promising activities in energy conversion reactions. Mo ion plays essential roles in natural and artificial catalysts, and the unique electrochemical properties render its versatile utilization as an electrocatalyst. In this review paper, we show the current understandings of the Mo-enzyme active sites and the recent advances in the synthesis of Mo-catalysts aiming for high-performing catalysts.

Weak Bimetal Coupling-Assisted MN4 Catalyst for Enhanced Carbon Dioxide Reduction Reaction

“…They can be adjusted from high VI valence to zero by using the appropriate ligand. This is essential for CO 2 activation and reduction in multiple coordination modes through electrophilic or nucleophilic experiences. − In biology, Mo is considered to be the active site of related enzymes, such as carbon monoxide dehydrogenase (Mo–Cu–CODH), − formate dehydrogenase (Mo-FDH), , etc. Inspired by a series of enzyme structures, the use of multimetal synergistic activation of CO 2 has attracted more and more attention. ,− In addition, the use of bimetallic alloys to improve the catalytic performance of CO 2 has also become the focus of attention in recent years. − , …”

“…This is essential for CO 2 activation and reduction in multiple coordination modes through electrophilic or nucleophilic experiences. 23−25 In biology, Mo is considered to be the active site of related enzymes, 26 such as carbon monoxide dehydrogenase (Mo− Cu−CODH), 27−29 formate dehydrogenase (Mo-FDH), 30,31 etc. Inspired by a series of enzyme structures, the use of multimetal synergistic activation of CO 2 has attracted more and more attention.…”

Molybdenum-, Vanadium-, and Tungsten-Containing Materials for Catalytic Applications

“…From the chemist’s point of view, the nature of coordination species and the environment around metals determine their activity [ 2 ]. Metalloenzymes are active in several reactions [ 3 ], particularly in oxidation processes with the assistance of molybdenum- [ 4 ], vanadium- [ 5 ], and tungsten-based compounds [ 6 ]. The activity of those species is quite large and the advantage lies in the stability of such complexes in aqueous media or under air [ 7 ].…”