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xin xing chan qing cui hua ji de he cheng ji qi guang cui hua chan qing xing neng yan jiu
Author(s): 
Pages: 491
Year: Issue:  5
Journal: Imaging Science and Photochemistry

Keyword:  @@;
Abstract: 太阳能光解水制氢被认为是人类解决能源危机的有效途径之一,高效稳定廉价产氢催化剂的研究一直是太阳能光解水制氢领域的难点和热点.本论文设计合成了多种类型的产氢催化剂,在多组分体系中研究了催化剂活性与结构间的依赖关系. 主要研究结果如下: 1.设计合成了两种双核Rh配合物[Rh2 (bpy)2(μ-O2CCH3)2]2+和[Rh2 (phen)2(μ O2CCH3)2]2-,与[Ir(ppy)2 (dtbpy)]+光敏剂和TEA电子牺牲体在THF/H2O(8/2)溶液中构建多组分光催化产氢体系.实验结果表明,两种Rh配合物均能高效稳定地光催化产氢,后者活性是前者的6倍.在线稳态吸收光谱实验证实,[Rh2(phen)2(μ-O2CCH3)2]2+高的催化活性源于其光还原生成的中间体,该中间体在575 nm处有特征吸收.
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