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

Yu Kyung Eom; Linda Nhon; Gyu Leem; Benjamin D. Sherman; Degao Wang; Ludovic TroianGautier; Soojin Kim; Jinheung Kim; Thomas J. Meyer; John R. Reynolds; Kirk S. Schanze;
University of Texas at San Antonio; Georgia Institute of Technology; University of Texas at San Antonio; Texas Christian University; University of North Carolina at Chapel Hill; University of North Carolina at Chapel Hill; Ewha Womans University; Ewha Womans University; University of North Carolina at Chapel Hill; Georgia Institute of Technology; University of Texas at San Antonio
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Abstract AITranslate

The organic chromophore 2,2′-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(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 O2 detection using a collector–generator cell. The complete SnO2/TiO2 core–shell-based photoanode exhibited an enhanced photocurrent (∼38 μA cm–2) compared to that with only the chromophore (∼24 μA cm–2). A modest Faradaic efficiency of 12% was recorded for O2 generation under 1 sun illumination in pH 3.9, 0.1 M acetate buffer solutions.

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DOI：https://doi.org/10.1021/acsenergylett.8b01020

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Citation Information:

The organic chromophore 2,2′-(benzo[c][1,2,5]thiadiazole-4,7-diyl)bis(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 O2 detection using a collector–generator cell. The complete SnO2/TiO2 core–shell-based photoanode exhibited an enhanced photocurrent (∼38 μA cm–2) compared to that with only the chromophore (∼24 μA cm–2). A modest Faradaic efficiency of 12% was recorded for O2 generation under 1 sun illumination in pH 3.9, 0.1 M acetate buffer solutions.

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GB/T 7714-2015 [1] Yu Kyung Eom, Linda Nhon, Gyu Leem, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.8b01020.
MLA [1] Yu Kyung Eom, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.8b01020.
APA [1] Yu Kyung Eom, Linda Nhon, Gyu Leem, Benjamin D. Sherman, Degao Wang, Ludovic TroianGautier, Soojin Kim, Jinheung Kim, Thomas J. Meyer, John R. Reynolds, & Kirk S. Schanze. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.8b01020
IEEE [1] Yu Kyung Eom, Linda Nhon, Gyu Leem, Benjamin D. Sherman, Degao Wang, Ludovic TroianGautier, Soojin Kim, Jinheung Kim, Thomas J. Meyer, John R. Reynolds, and Kirk S. Schanze, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.8b01020.