Photoelectrocatalytic Synthesis of Hydrogen Peroxide by Molecular Copper-Porphyrin Supported on Titanium Dioxide Nanotubes

被引：27

作者：

Apaydin, Dogukan H. ^{[1
]}

Seelajaroen, Hathaichanok ^{[1
]}

Pengsakul, Orathip ^{[2
]}

Thamyongkit, Patchanita ^{[3
,4
]}

Sariciftci, Niyazi Serdar ^{[1
]}

Kunze-Liebhaeuser, Julia ^{[5
]}

Portenkirchner, Engelbert ^{[5
]}

机构：

[1] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells LIOS, Inst Phys Chem, A-4040 Linz, Austria

[2] Chulalongkorn Univ, Petrochem & Polymer Sci Program, Fac Sci, Bangkok 10330, Thailand

[3] Chulalongkorn Univ, Dept Chem, Fac Sci, Bangkok 10330, Thailand

[4] Chulalongkorn Univ, Dept Chem, Res Grp Mat Clean Energy Prod STAR, Fac Sci, Bangkok 10330, Thailand

[5] Univ Innsbruck, Inst Phys Chem, A-6020 Innsbruck, Austria

来源：

CHEMCATCHEM | 2018年 / 10卷 / 08期

基金：

奥地利科学基金会;

关键词：

copper; heterogeneous catalysis; hydrogen peroxide; oxygen reduction; photoelectrochemistry; ELECTROPHILIC DISPLACEMENT-REACTIONS; PHOTOCATALYTIC PRODUCTION; BENZENEBORONIC ACID; SOLAR FUEL; OXYGEN; CATALYSTS; H2O2; H-2; REDUCTION; WATER;

D O I：

10.1002/cctc.201702055

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on a self-assembled system comprising a molecular copper-porphyrin photoelectrocatalyst, 5-(4-carboxy-phenyl)-10,15,20-triphenylporphyrinatocopper(II) (CuTPP-COOH), covalently bound to self-organized, anodic titania nanotube arrays (TiO2 NTs) for photoelectrochemical reduction of oxygen. Visible light irradiation of the porphyrin-covered TiO2 NTs under cathodic polarization up to -0.3V vs. Normal hydrogen electrode (NHE) photocatalytically produces H2O2 in pH neutral electrolyte, at room temperature and without need of sacrificial electron donors. The formation of H2O2 upon irradiation is proven and quantified by direct colorimetric detection using 4-nitrophenyl boronic acid (p-NPBA) as a reactant. This simple approach for the attachment of a small molecular catalyst to TiO2 NTs may ultimately allow for the preparation of a low-cost H2O2 evolving cathode for efficient photoelectrochemical energy storage under ambient conditions.

引用

页码：1793 / 1797

页数：5

共 33 条

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