Influences of the adsorption state of catalyst on the performance of DS-PEC for visible light driven water splitting

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• 作者：Linlin Zhang^a ; ^b ; Yan Gao^a ; ^{dr.gaoyan@dlut.edu.cn} ; Xin Ding^a
• 关键词：Water oxidation ; Photoelectrochemical ; Photoanode ; DS-PEC
• 刊名：Journal of Energy Chemistry
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：26
• 期：1
• 页码：163-167
• 全文大小：2372 K
• 卷排序：26

文摘

Adsorption state of catalyst on photoanode is an important factor on influencing the performance of dye-sensitized photoelectrochemical cells (DS-PECs) for water splitting. Photoanode TiO2(1 + 2) was assembled with Ru(bpy)3 phosphoric acid derivative (complex 1) as photosensitizer and complex 2 as water oxidation catalyst to compare with photoanode TiO2(1 + 3). The photocurrent density of photoanode TiO2(1 + 3) with catalyst 3 synthesized with only one end fixing on the surface of TiO2 is about four-fold of the photoanode assembled with catalyst 2 fixing with two claws on the surface of TiO2. The phenomenon should be caused by the littery arrangement and shorter distance of catalyst 2 from the active center of catalyst to TiO2 on the surface of semiconductor which led to lowly efficient electron transfer.