Conversion of CO2 from Air into Methanol Using a Polyamine and a Homogeneous Ruthenium Catalyst
Conversion of CO2 from Air into Methanol Using a Polyamine and a Homogeneous Ruthenium Catalyst
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DOI：
10.1021/jacs.5b12354
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发表时间：
2016-01-27
影响因子：
15
通讯作者：
Prakash, G. K. Surya
中科院分区：
文献类型：
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作者：
Kothandaraman, Jotheeswari;Goeppert, Alain;Prakash, G. K. Surya
在125-165 ℃下，在醚溶剂中，使用五亚乙基六胺和Ru-Macho-BH（1），开发了用于由CO2生产CH 3OH的高效均相催化剂体系（在145 ℃下初始转换频率= 70 h（-1））。通过从反应混合物中简单蒸馏证明了CH 3OH的容易分离。催化系统的稳健性通过在五次运行中再循环催化剂而没有显著的活性损失（周转数> 2000）来显示。各种CO2源可用于该反应，包括空气，尽管其CO2浓度低（400 ppm）。我们首次证明了从空气中捕获的CO2可以直接转化为CH 3OH，产率为79%，使用均相催化体系。
A highly efficient homogeneous catalyst system for the production of CH3OH from CO2 using pentaethylenehexamine and Ru-Macho-BH (1) at 125-165 degrees C in an ethereal solvent has been developed (initial turnover frequency = 70 h(-1) at 145 degrees C). Ease of separation of CH3OH is demonstrated by simple distillation from the reaction mixture. The robustness of the catalytic system was shown by recycling the catalyst over five runs without significant loss of activity (turnover number > 2000). Various sources of CO2 can be used for this reaction including air, despite its low CO2 concentration (400 ppm). For the first time, we have demonstrated that CO2 captured from air can be directly converted to CH3OH in 79% yield using a homogeneous catalytic system.