期刊
INORGANIC CHEMISTRY FRONTIERS
卷 6, 期 12, 页码 3518-3528出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9qi00863b
关键词
-
资金
- Beijing Municipal Natural Science Foundation [2182028]
- National Natural Science Foundation of China [21541010]
- Analytical and Measurements Fund of Beijing Normal University
Electropolymerized organic films have been extensively investigated, and are usually one- or two-dimensional structures; three-dimensional (3D) electropolymerized thin films are rare. In this work, a new 3D thiophene-functionalized ruthenium complex of RuL3(ClO4)(2)center dot 5H(2)O {L = 1-phenyl-2-(5-(thiophen-2-yl)thiophen-2-yl)-1H-imidazo[4,5-f][1,10]phenanthrolin} was synthesized and electro-oxidized to form 3D polymerized poly-RuL3, which was deposited onto an indium-tin oxide (ITO) electrode surface. The resulting films are studied by UV-Vis absorption spectroscopy, scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and cyclic voltammetry and photoelectrochemical measurements. It was found that the films exhibited surface-controlled Ru-III/II based redox behavior and cathodic photocurrent generation characteristics. Under irradiation of 100 mW cm(-2) white light, a poly(RuL3)(2) modified ITO electrode biased at -0.4 V vs. SCE in 0.1 M Na2SO4 aqueous solution showed a photocurrent density of 1.52 mu A cm(-2) in the absence of an added electron acceptor, which was increased to 2.30 mu A cm(-2) when oxygen was bubbled into the electrolyte solution, indicating that the films acted as both excellent sensitizers and catalysts for oxygen reduction. This work would guide the construction of modified electrodes with more efficient photoelectric conversion and oxygen sensing and reduction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据