Biomimetic electro-oxidation of alkyl sulfides from exfoliated molybdenum disulfide nanosheets
文献信息
Lahcene Maachou, Kun Qi, Eddy Petit, Zhaodan Qin, Yang Zhang, Didier Cot, Valérie Flaud, Corine Reibel, Heba El-Maghrbi, Lei Li, Philippe Miele, Daniel Kaplan, Manish Chhowalla, Nicolas Onofrio, Damien Voiry
Enzymes are biological catalysts that are interesting for key reactions such as hydrogen evolution, CO2 conversion into hydrocarbons and the fixation of nitrogen. Enzymes are particularly good catalysts for organic reactions because of their high selectivity. However, they exhibit modest stability and require extensive purification, which makes them costly. Here, we report a biomimetic electroactive two-dimensional (2D) catalyst based on single-layer metallic MoS2 nanosheets for the oxidation of alkyl and aryl sulfides. The structure of the MoS2 nanosheets mimics the active site of natural dimethyl sulfoxide (DMSO) reductase found in anaerobic bacteria. We demonstrate that 2D MoS2 nanosheets efficiently oxidize organic sulfides. Notably, we show that dimethyl sulfide can be electro-oxidized to DMSO with activity surpassing that of noble metal catalysts. The production of DMSO using metallic 1T′ phase MoS2 reaches 680 L per h per gram at 1500 mV vs. NHE – ∼4 times higher than platinum nanoparticles – and is stable for >24 hours. Our findings provide new directions for electrosynthesis from metallic 2D materials.
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来源期刊
Journal of Materials Chemistry A

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment














