化学
二氧化碳
二氧化碳电化学还原
还原(数学)
氢
制氢
金属
生产(经济)
光化学
碳纤维
无机化学
化学工程
有机化学
催化作用
一氧化碳
宏观经济学
复合材料
经济
工程类
材料科学
复合数
数学
几何学
作者
Pengyan Wu,Xiangyang Guo,Linjuan Cheng,Cheng He,Jian Wang,Chunying Duan
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2016-08-01
卷期号:55 (16): 8153-8159
被引量:49
标识
DOI:10.1021/acs.inorgchem.6b01267
摘要
The design of a new photocatalytic system and integrating the essential components in a structurally controlled manner to create artificially photosynthetic systems is high desirable. By incorporating a photoactive triphenylamine moiety to assemble a Gd-based metal–organic framework as a heterogeneous photosensitizer, new artificial systems were constructed for the proton and carbon dioxide reduction under irradiation. The assembled MOFs exhibited a one-dimensional metal-oxygen pillar that was connected together by the depronated TCA3– ligands to form a three-dimensional noninterpenetrating porous framework. The combining of proton reduction and/or the carbon dioxide reduction catalysts, i.e., the Fe-Fe hydrogenase active site models and the Ni(Cyclam) complexes, initiated a photoinduced single electron transfer from its excited state to the substrate. The system exhibited an initial TOF of 320 h–1 of hydrogen per catalyst and an overall quantum yield of about 0.21% and is able to reduce carbon dioxide under irradiation. The deposit of the photoactive Gd-TCA into the film of an α-Al2O3 plate provided a platform for the practical applications through prolonging the lifetime of the artifical system and allowed the easily operated devices being recyclable as a promising photocatalytic system.
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