In situ formation of a MoS2 -based inorganic-organic nanocomposite by directed thermal decomposition.
In situ formation of a MoS2 -based inorganic-organic nanocomposite by directed thermal decomposition.
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DOI：
10.1002/chem.201406541
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发表时间：
2015-06
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通讯作者：
John Djamil;Stefan A W Segler;W. Bensch;U. Schürmann;M. Deng;L. Kienle;S. Hansen;T. Beweries;Leo von Wüllen;S. Rosenfeldt;S. Förster;H. Reinsch
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文献类型：
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作者：
John Djamil;Stefan A W Segler;W. Bensch;U. Schürmann;M. Deng;L. Kienle;S. Hansen;T. Beweries;Leo von Wüllen;S. Rosenfeldt;S. Förster;H. Reinsch
基于二硫化钼(MoS_2)和不同碳改性的纳米复合材料因其耐人寻味的光学和电学性质而在多个应用领域得到了广泛的研究。添加第三种元素可以增强这种纳米复合材料的功能和应用领域。在这里，我们提出了一种基于(PH4P)2MoS4直接热分解生成含碳和磷的MoS2纳米复合材料的简便合成方法。固体核磁共振谱表明，在250℃下分解得到的复合材料具有明显的MoS_2层间距离，这是由于Ph_3PS通过MoS键和范德华带隙中的(Ph_4P)_2 S分子原位生成而导致的。可见光驱动制氢展示了该材料的高催化性能。
Nanocomposites based on molybdenum disulfide (MoS2 ) and different carbon modifications are intensively investigated in several areas of applications due to their intriguing optical and electrical properties. Addition of a third element may enhance the functionality and application areas of such nanocomposites. Herein, we present a facile synthetic approach based on directed thermal decomposition of (Ph4 P)2 MoS4 generating MoS2 nanocomposites containing carbon and phosphorous. Decomposition at 250 °C yields a composite material with significantly enlarged MoS2 interlayer distances caused by in situ formation of Ph3 PS bonded to the MoS2 slabs through MoS bonds and (Ph4 P)2 S molecules in the van der Waals gap, as was evidenced by (31) P solid-state NMR spectroscopy. Visible-light-driven hydrogen generation demonstrates a high catalytic performance of the materials.