Zinc Porphyrins Covalently Bound to the Side Walls of Single-Walled Carbon Nanotubes via Flexible Bonds: Photoinduced Electron Transfer in Polar Solvent

被引：34

作者：

Arai, Toru ^{[1
]}

Nobukuni, Shingo ^{[1
]}

Sandanayaka, Atula S. D. ^{[2
]}

Ito, Osamu ^{[2
]}

机构：

[1] Kyushu Inst Technol, Dept Appl Chem, Fac Engn, Tobata Ku, Kitakyushu, Fukuoka 8048550, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 32期

关键词：

NANOSTRUCTURED SNO2 ELECTRODES; DONOR-ACCEPTOR NANOHYBRIDS; ENERGY-CONVERSION; ELECTROPHORETIC DEPOSITION; COMPOSITE CLUSTERS; CHARGE SEPARATION; SOLAR-CELLS; FULLERENE; FUNCTIONALIZATION; WATER;

D O I：

10.1021/jp904193f

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：

Single-walled carbon nanotubes (SWCNTs) tethering zinc porphyrins (ZnP) with flexible aliphatic bonds, ZnP-(spacer)-SWCNT, were prepared with applying the Prato reaction. Under illumination by visible light (>500 nm), ZnP- (spacer)-SWCNT effectively catalyzed the reduction of the benzylviologen dication (BV(2+)) by 1-benzyl-1,4-dihydronicotinamide in dimethylformamide (DMF). The H(2) evolution was also confirmed when the ZnP- (spacer) -SWCNT aqueous solution was illuminated by visible light in the presence of Pt particles. Furthermore, the photocurrent and photovoltage were observed to respond to the on-off cycles of the visible light irradiation in a solar cell consisting of a transparent glass electrode modified with ZnP- (spacer) -SWCNT. The time-resolved fluorescence and absorption spectral measurements revealed the photoinduced electron-transfer mechanism.

引用

页码：14493 / 14499

页数：7

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