Photocatalytic Hydrogen Production Coupled with Selective Benzylamine Oxidation over MOF Composites,Angewandte Chemie International Edition

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Photocatalytic Hydrogen Production Coupled with Selective Benzylamine Oxidation over MOF Composites
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-03-30 , DOI: 10.1002/anie.201800320
Hang Liu ₁ , Caiyun Xu ₁ , Dandan Li ₁ , Hai-Long Jiang ₁

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Photocatalytic water splitting requires separation of the mixed H₂ and O₂ products and is often hampered by the sluggish O₂‐producing half reaction. An approach is now reported to address these issues by coupling the H₂‐producing half reaction with value‐added benzylamine oxidation reaction using metal–organic framework (MOF) composites. Upon MOF photoexcitation, the electrons rapidly reduce the protons to generate H₂ and the holes promote considerable benzylamine oxidation to N‐benzylbenzaldimine with high selectivity. Further experimental characterizations and theoretical calculation reveal that the highly conjugated s‐triazine strut in the MOF structure is crucial to the efficient charge separation and excellent photocatalytic activity.

中文翻译：

MOF复合材料上光催化制氢与选择性苄胺氧化反应

光催化水分解需要分离混合的H ₂和O ₂产物，并且经常会因缓慢产生O _2的半反应而受阻。现在报道了一种通过使用金属-有机骨架（MOF）复合材料将产生H _2的半反应与增值的苄胺氧化反应偶联来解决这些问题的方法。MOF光激发后，电子迅速还原质子以生成H ₂孔以高选择性促进相当数量的苄胺氧化为N-苄基苄二胺。进一步的实验表征和理论计算表明，MOF结构中高度共轭的s-triazine撑杆对于有效的电荷分离和出色的光催化活性至关重要。

更新日期：2018-03-30

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