A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst
A visible light water-splitting cell with a photoanode formed by codeposition of a high-potential porphyrin and an iridium water-oxidation catalyst
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DOI：
10.1039/c1ee01037a
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发表时间：
2011-07-01
影响因子：
32.5
通讯作者：
Brudvig, Gary W.
中科院分区：
文献类型：
--
作者：
Moore, Gary F.;Blakemore, James D.;Brudvig, Gary W.
高电位卟啉与我们的Cp*-铱水氧化催化剂一起共沉积在TiO（2）纳米颗粒上，得到用于水裂解电池的光阳极。光阳极在光学上类似于卟啉，但当它浸入水溶液中时，其电化学响应类似于Ir催化剂。光电化学数据表明，在水中的共沉积阳极的照明结果在一个显着的增强和稳定的光电流，光诱导的催化剂的活化提供了证据。
A high-potential porphyrin is codeposited on TiO(2) nanoparticles together with our Cp*-iridium water-oxidation catalyst to give a photoanode for a water-splitting cell. The photoanode optically resembles the porphyrin yet electrochemically responds like the Ir catalyst when it is immersed in aqueous solutions. Photoelectrochemical data show that illumination of the codeposited anode in water results in a marked enhancement and stability of the photocurrent, providing evidence for light-induced activation of the catalyst.