TiO2 Photonic Crystal Sensitized with Mn3O4 Nanoparticles and Porphine Manganese(III) as Efficient Photoanode for Photoelectrochemical Water Splitting
| Autor: | Ping Yang, Aijuan Liu, Kezhen Li, Dongmei Chu, Yukou Du, Xia Li, Jie Huang, Chunyong Zhang |
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| Rok vydání: | 2017 |
| Předmět: |
Auxiliary electrode
Materials science Diffuse reflectance infrared fourier transform Scanning electron microscope Composite number Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials General Energy Chemical engineering Transmission electron microscopy Electrode Water splitting Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry C. 122:260-266 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/acs.jpcc.7b05985 |
| Popis: | We report the synthesis and photoelectrochemical characterization of a novel composite consisting of Mn3O4 nanoparticles, porphine manganese(III) (PMA), and TiO2 photonic crystal (TPC). The prepared composite (Mn3O4/PMA/TPC) was used for fabricating the photoanode of a photoelectrochemical tandem cell. The obtained Mn3O4/PMA/TPC composite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and UV–vis diffuse reflectance spectroscopy (DRS). The results demonstrated that PMA and Mn3O4 nanoparticles had been loaded in the hole of TPC successfully. The photoelectrochemical characterization of the Mn3O4/PMA/TPC electrode revealed an enhanced light harvesting and effective electron–hole separation. The photoelectrochemical tandem cell, of which Mn3O4/PMA/TPC electrode acted as a photoanode and a Pt plate as counter electrode, was used to evaluate the feasibility for water splitting to produce H2 and O2 under a 300 W solar simulator irradiation. The gases evolved from... |
| Databáze: | OpenAIRE |
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