H2 Generation from a homogeneous photocatalytic system containing noble‐metal‐free Co(II) complex under the irradiation of visible light |
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| Authors: | Heng Rao Jun Wang Xiao‐Zong Hu Yao‐Ting Fan Hong‐Wei Hou |
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| Affiliation: | College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, China |
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| Abstract: | A noble‐metal‐free molecular catalyst, Co(dmbp)3]Cl2 (dmbp = 4,4’‐dimethyl‐2,2’‐bipyridyl) was prepared for photocatalytic H2 generation. A three‐component photocatalytic system was constructed by combination of Co(dmbp)3]Cl2 as catalyst, Eosin Y as photosensitizer and triethylamine as sacrificial electron donor to give an efficient H2 generation system under visible‐light irradiation (λ > 420 nm). The maximum H2 yield was up to 249.2 turnover number (vs. catalyst) over 2 h irradiation under the conditions with catalyst of 4.0 × 10?4 M, 10% TEA (v/v), EY2? of 4.0 × 10?4 M and pH 10 in MeCN/H2O (1 : 1,v/v). Furthermore, the dynamics behaviors of the photolysis system were also briefly discussed. Copyright © 2014 John Wiley & Sons, Ltd. |
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| Keywords: | Co(II) molecular catalyst H2 generation photocatalysis dynamics behaviors |
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