A novel photo-thermochemical cycle of water-splitting for hydrogen production based on TiO 2−x /TiO 2
| Autor: | Kewei Zhou, Zhihua Wang, Chenyu Xu, Yanwei Zhang, Jingche Chen, Junhu Zhou, Kefa Cen |
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| Rok vydání: | 2016 |
| Předmět: |
Copper–chlorine cycle
Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry Energy Engineering and Power Technology Hybrid sulfur cycle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Cerium(IV) oxide–cerium(III) oxide cycle Sulfur–iodine cycle Fuel Technology Zinc–zinc oxide cycle Water splitting Thermochemical cycle 0210 nano-technology Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 41:2215-2221 |
| ISSN: | 0360-3199 |
| Popis: | The traditional two-step thermochemical cycle of water-splitting that is based on metal-oxide redox pairs requires a high reaction temperature. In this study, we introduced a photochemical reaction into this thermochemical cycle and established a novel photo-thermochemical cycle. In this new cycle, the process by which metal oxides are reduced through concentrated solar energy is replaced with a photochemical reaction while water is still dissociated via a thermochemical reaction. Thus, photo-thermochemical cycles that combine these two reactions can be initiated at relatively low temperatures, unlike thermochemical cycles operated at extremely high temperatures. In this research, TiO2 was used as the catalyst, experiments were conducted to evaluate the feasibility of the proposed cycle, and a preliminary mechanism was developed for this cycle. |
| Databáze: | OpenAIRE |
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