Enhanced Photocatalytic Hydrogen Production by Adsorption of an [FeFe]‐Hydrogenase Subunit Mimic on Self‐Assembled Membranes
Enhanced Photocatalytic Hydrogen Production by Adsorption of an [FeFe]‐Hydrogenase Subunit Mimic on Self‐Assembled Membranes
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DOI：
10.1002/ejic.201501377
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发表时间：
2016-01
影响因子：
2.3
通讯作者：
Stefan Troppmann;Evan B. Brandes;H. Motschmann;Fei Li;Mei Wang;Licheng Sun;B. König
中科院分区：
文献类型：
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作者：
Stefan Troppmann;Evan B. Brandes;H. Motschmann;Fei Li;Mei Wang;Licheng Sun;B. König
通过模拟膜界面的[FeFe]-氢酶亚基的吸附增强了在酸性条件下水中光催化产氢的能力，进一步功能化了具有膜包埋或吸附的Ru多吡啶配合物的自组装囊泡。由此产生的二维膜组件将光敏剂和放氢二铁络合物放置在非常接近的位置，导致与没有类脂膜的相同系统相比，周转次数增加了6到12倍。然后，界面组件能够将亲水性和疏水性催化实体相结合，用于酸性水中的光驱动质子还原，并为膜功能化提供了一种灵活的方法。
Self-assembled vesicles with membrane-embedded or adsorbed ruthenium polypyridine complexes were further functionalized by the adsorption of an [FeFe]-hydrogenase subunit mimic to the membrane interface enhancing the photocatalytic hydrogen production in water under acidic conditions. The resulting two-dimensional membrane assembly places the photosensitizer and hydrogen-evolving diiron complex in close proximity resulting in a six- to twelvefold increase in the turnover number as compared to the same system in the absence of lipid membranes. The interface assembly then enables the combining of hydrophilic and hydrophobic catalytic entities for light-driven proton reduction in acidic water and provides a flexible method for membrane functionalization.