A PMMA overlayer improving the surface-bound stability of photoanode for water splitting. (20th July 2016)

• Record Type: Journal Article
• Authors: Zhang, Linlin; Gao, Yan; Ding, Xin
• Is Part Of: Electrochimica acta. Volume 207(2016)
• Page Start: 130
• Page End: 134
• Publication Date: 2016-07-20
• Subjects: Dye-sensitized photoelectrochemical cell -- photoanode -- water splitting -- stability improvement; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2016.04.125
• Languages: English
• ISSNs: 0013-4686

Abstract

Highlights: A PMMA oligomer coating photoanode for light driven water splitting. The PMMA overlayer was optimized as immersing 2 wt% PMMA in DCM for 15 s. The DS-PEC displayed better long-term stability with the decorated photoanode. Abstract: A PMMA (polymethly methacrylate) oligomer coating photoanode sensitized with the Ru(bpy)3 phosphoric acid derivative1 as photosensitizer and complex2 as water oxidation catalyst was assembled for light driven water splitting. A simple and effective method was optimized by immersing the sensitized photoanode into the DCM solution dissolving 2 wt% PMMA for 15 s. With the decorated photoanode as working electrode, the DS-PEC displayed much better long-term stability, the photocurrent density of which was found to be 0.57 mA/cm 2 after 200 s sustaining light illumination and is four times as high as the undecorated one (0.15 mA/cm 2 ).