HYDROGEN EVOLUTION FROM WATER BY VISIBLE-LIGHT, A HOMOGENEOUS 3 COMPONENT TEST SYSTEM FOR REDOX CATALYSIS
HYDROGEN EVOLUTION FROM WATER BY VISIBLE-LIGHT, A HOMOGENEOUS 3 COMPONENT TEST SYSTEM FOR REDOX CATALYSIS
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DOI：
10.1002/hlca.19780610740
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发表时间：
1978-01-01
影响因子：
1.8
通讯作者：
GRATZEL, M
中科院分区：
文献类型：
--
作者：
KALYANASUNDARAM, K;KIWI, J;GRATZEL, M
以Ru（bipy）为敏化剂，甲基紫精（MV+2）为电子受体，三乙醇胺或半胱氨酸为电子给体的中性水溶液经可见光照射，可形成稳定的甲基紫精自由基阳离子（MV+）。利用激光光解技术研究了该体系中光诱导反应的动力学和机理。在亚当催化剂的存在下，MV+在同时放出氢的情况下被水再氧化。最佳条件下的水减少连续照明阐述和能量转换系统的影响进行了讨论。
Irradiation by visible light of a neutral aqueous solution containing Ru (bipy) as a sensitizer, methylviologen (MV+2) as an electron acceptor and triethanolamine or cysteine as an electron donor leads to the formation of stable methylviologen radical cation (MV+). The kinetics and mechanism of the photoinduced reactions occurring in such a system were explored by laser photolysis technique. In the presence ofAdamscatalyst MV+is reoxidized by water under simultaneous evolution of hydrogen. Optimum conditions for the water reduction under continuous illumination are elaborated and implications for an energy conversion system discussed.