Molecular Copper(I)-Copper(II) Photosensitizer-Catalyst Photoelectrode for Water Oxidation

被引：13

作者：

Singh, Zujhar ^{[1
,2
]}

Donnarumma, P. Rafael ^{[1
,2
]}

Majewski, Marek B. ^{[1
,2
]}

机构：

[1] Concordia Univ, Dept Chem & Biochem, Montreal, PQ H4B 1R6, Canada

[2] Concordia Univ, Ctr NanoSci Res, Montreal, PQ H4B 1R6, Canada

来源：

INORGANIC CHEMISTRY | 2020年 / 59卷 / 18期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ELECTRON-TRANSFER; CHARGE SEPARATION; ZNO NANOWIRE; COMPLEXES; LAYER; SENSITIZERS; ARRAYS; CELLS;

D O I：

10.1021/acs.inorgchem.0c01670

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Copper(II)-based electrocatalysts for water oxidation in aqueous solution have been studied previously, but photodriving these systems still remains a challenge. In this work, a bis(diimine)copper(I)-based donor-chromophore-acceptor system is synthesized and applied as the light-harvesting component of a photoanode. This molecular assembly was integrated onto a zinc oxide nanowire surface, and upon photoexcitation, chronoamperometric studies reveal that the integrated triad can inject electrons directly into the conduction band of zinc oxide, generating oxidizing equivalents that are then transferred to a copper(II) water oxidation catalyst in aqueous solution, yielding O-2 from water with a Faradaic efficiency of 76%.

引用

收藏

页码：12994 / 12999

页数：6

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