Redox behavior of iridium octaethylporphycene and electrocatalytic hydrogen evolution
Redox behavior of iridium octaethylporphycene and electrocatalytic hydrogen evolution
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八乙基卟啉铱的氧化还原行为及电催化析氢
DOI：
10.1142/s108842462150053x
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Yoshio Hisaeda
中科院分区：
文献类型：
--
作者：
Zhi Zhang;Taro Koide;Zihan Zhou;Hisashi Shimakoshi;Yoshio Hisaeda
测定了辛乙基卟啉铱配合物（Ir-OEPo）的电化学性能。电谱测量结果表明，Ir-OEPor的还原不是发生在中心金属上，而是发生在配体上，而Ir-OEPor的还原发生在中心铱上。在还原条件下，用三氟乙酸（TFA）进行循环伏安法（CV）测量时观察到催化电流，表明了ir - opo对析氢反应（HER）的催化活性。采用恒电位电解法，气相色谱（GC）检测氢气，并证实了ir - opo的催化活性。大环芳香族配合物的HER还原机理可以作为开发新催化剂的概念之一。
The electrochemical properties of-octaethylporphycene iridium complex (Ir-OEPo) were determined. Based on the electro-spectro measurement results, the reduction ofIr-OEPodid not occur at the central metal but at the ligand, while the reduction of-octaethylporphyrin iridium complex (Ir-OEPor) occurred at the central iridium. A catalytic current was observed during the cyclic voltammetry (CV) measurements with trifluoroacetic acid (TFA) under a reductive condition, indicating the catalytic reactivity ofIr-OEPofor the hydrogen evolution reaction (HER). By constant potential electrolysis, hydrogen gas was detected by gas chromatography (GC) and the catalytic reactivity ofIr-OEPowas confirmed. The HER mechanismvialigand reduction of macrocyclic aromatic complexes could be one of the concepts for the development of new catalysts.