Visible-Light-Driven Photocatalytic Water Oxidation by a π-Conjugated Donor Acceptor Donor-Chromophore/Catalyst Assembly

被引：36
作者：
Eom, Yu Kyung [1 ]
Nhon, Linda [2 ]
Leem, Gyu [1 ]
Sherman, Benjamin D. [3 ]
Wang, Degao [4 ]
Troian-Gautier, Ludovic [4 ]
Kim, Soojin [5 ]
Kim, Jinheung [5 ]
Meyer, Thomas J. [4 ]
Reynolds, John R. [2 ]
Schanze, Kirk S. [1 ]
机构：
[1] Univ Texas San Antonio, Dept Chem, San Antonio, TX 78249 USA
[2] Georgia Inst Technol, Sch Chem & Biochem, Sch Mat Sci & Engn, Ctr Organ Photon & Elect,Georgia Tech Polymer Net, Atlanta, GA 30332 USA
[3] Texas Christian Univ, Dept Chem & Biochem, Ft Worth, TX 76129 USA
[4] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA
[5] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea
来源：
ACS ENERGY LETTERS | 2018年 / 3卷 / 09期
关键词：
RECOMBINATION DYNAMICS; SOLAR-CELLS; CATALYST; DESIGN; PHOTOANODES;
D O I：
10.1021/acsenergylett.8b01020
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：
The organic chromophore 2,2'-(benzo[c][1,2,5]thiadiazole-4,7-diyObis(thiophene-3-carboxylic acid), T2-BTD, was prepared and investigated along with metal complex [Ru(bda)(pyP)(2)] (bda = 2,2'-bipyridine-6,6'-dicarboxylate; pyP = 3-(pyridine-4-yloxy)propyl)phosphonic acid), RuC, for light-driven water splitting in dye sensitized photoelectrochemical cells. The resulting co-loaded organic chromophore plus catalyst surface assembly was evaluated by photocurrent transient measurement and direct O-2 detection using a collector-generator cell. The complete SnO2/TiO2 core-shell-based photoanode exhibited an enhanced photocurrent (similar to 38 pA cm(-2)) compared to that with only the chromophore pA cm(-2)). A modest Faradaic efficiency of 12% was recorded for O-2 generation under 1 sun illumination in pH 3.9, 0.1 M acetate buffer solutions.
引用
收藏
页码：2114 / 2119
页数：11
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