Selective and Efficient Photocatalytic CO2 Reduction to CO Using Visible Light and an Iron-Based Homogeneous Catalyst
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- 作者：Julien Bonin ; Marc Robert ; Mathilde Routier
- 刊名：Journal of the American Chemical Society
- 出版年：2014
- 出版时间：December 3, 2014
- 年：2014
- 卷：136
- 期：48
- 页码：16768-16771
- 全文大小：298K
- ISSN：1520-5126
文摘
Converting CO2 into valuable compounds using sunlight as the energy input and an earth-abundant metal complex as the catalyst is an exciting challenge related to contemporary energy issues as well as to climate change. By using an inexpensive organic photosensitizer under visible-light excitation (位 > 400 nm) and a substituted iron(0) tetraphenylporphyrin as a homogeneous catalyst, we have been able to generate carbon monoxide from CO2 selectively with high turnover numbers. Sustained catalytic activity over a long time period (t > 50 h) did not lead to catalyst or sensitizer deactivation. A catalytic mechanism is proposed.