Photocatalytic and electrocatalytic reduction of CO2 to methanol by the homogeneous pyridine-based systems

作者：Wang, Wei; Zhang, Junxiao; Wang, Hui^*; Chen, Lianjia; Bian, Zhaoyong^*

来源：Applied Catalysis A: General , 2016, 520: 1-6.

DOI：10.1016/j.apcata.2016.04.003

• Photocatalysis
• CO2 reduction
• Methanol
• Metal complex
• Homogeneous catalysis

The visible light driven pyridine catalytic reduction of CO2 was performed in aid of ruthenium phenanthroline complex photosensitizer. The light absorbance and utilization of the catalytic system was identified using UV-vis absorption and emission spectroscopic techniques. Under the dark conditions, electrochemical properties of the catalytic system were evaluated by compared the redox properties under N-2 and CO2 pressure, respectively. Then, the photocatalytic CO2 reduction with this catalytic system was studied under the visible light (lambda > 420 nm) irradiation. The gaseous and liquid products of the CO2 reduction were analyzed using gas chromatography and liquid chromatography. Methanol was the main product and there were no other products determined in the present system. The photocatalytic system showed a high product selectivity and efficient productivity with 60 of methanol as solo product under the optimized conditions.

• 出版日期2016-6-25
• 单位北京师范大学; 北京林业大学