Anodized metal oxide nanostructures for photoelectrochemical water splitting
| Autor: | Jingyuan Li, Gong Zhengqi, Dongjian Jiang, Lu-Ning Wang, Yingzhi Chen |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Anodizing business.industry Mechanical Engineering 0211 other engineering and technologies Metals and Alloys Oxide Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Solar energy Anode chemistry.chemical_compound Adsorption chemistry Geochemistry and Petrology Mechanics of Materials Hydrogen fuel Materials Chemistry Water splitting 0210 nano-technology Absorption (electromagnetic radiation) business 021102 mining & metallurgy |
| Zdroj: | International Journal of Minerals, Metallurgy and Materials. 27:584-601 |
| ISSN: | 1869-103X 1674-4799 |
| Popis: | Photoelectrochemical (PEC) water splitting offers the capability of harvesting, storing, and converting solar energy into clean and sustainable hydrogen energy. Metal oxides are appealing photoelectrode materials because of their easy manufacturing and relatively high stability. In particular, metal oxides prepared by electrochemical anodization are typical of ordered nanostructures, which are beneficial for light harvesting, charge transfer and transport, and the adsorption and desorption of reactive species due to their high specific surface area and rich channels. However, bare anodic oxides still suffer from low charge separation and sunlight absorption efficiencies. Accordingly, many strategies of modifying anodic oxides have been explored and investigated. In this review, we attempt to summarize the recent advances in the rational design and modifications of these oxides from processes before, during, and after anodization. Rational design strategies are thoroughly addressed for each part with an aim to boost overall PEC performance. The ongoing efforts and challenges for future development of practical PEC electrodes are also presented. |
| Databáze: | OpenAIRE |
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