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

• 来源期刊: 能源化学
• 年，卷（期）: 2017,（1）
• 页码范围: 163-167
• 页数: 5页
• 语种: 英文

摘要

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 phe nomenon 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.