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- W4294286522 abstract "Hydrogen fuel harvesting by photo-assisted water splitting using metal oxide nanomaterials is an efficient, environmentally benign photo-energy harvesting method. Photocathode and photoanode are vital components of photoelectrochemical water splitting cells (PECWSC) responsible for hydrogen evolution efficiency, which decides water splitting performance. Metal oxides and their nanostructures are developed in a wide range and are very popular for their unique properties of low cost, easy synthesis, wide versatility in the bandgap, tunable energy levels through dopant engineering, and synthesis methods. PECWS depends on the charge separation and diffusion processes, and these are reflected by how many hole-electrons interact with the nanostructured electrode surface. Thus, the charge injection process is ultimately initiating the redox reactions at the interfaces. Hence, knowledge of the development of electrodes and their properties, including surface activities, is beneficial for developing efficient PWSCs. Here, a summary is provided with crucial knowledge sessions of metal oxides related to oxygen vacancy engineering and their classification materials as the role of photoanode and photocatalyst in PWSCs. In detail, fundamental approaches of improving light absorption, photostability, catalytic activity, electronic conductivity, and surface/morphological properties of materials with synthesis methods integrated with oxygen vacancies are discussed. Topics also focus on the detailed characterization methods and performance of various nanostructured metal oxide electrodes in the PWSCs. Further, significant limitations of the performance of metal oxides are low electrical conductivity, adequate visible light absorption, and oxygen vacancy control during material engineering. This chapter provides useful background knowledge to define the way for overcoming limitations for developing efficient nanostructured electrode materials for future PWSCs devices." @default.
- W4294286522 created "2022-09-02" @default.
- W4294286522 creator A5011628859 @default.
- W4294286522 creator A5053326699 @default.
- W4294286522 creator A5065334023 @default.
- W4294286522 date "2022-01-01" @default.
- W4294286522 modified "2023-10-16" @default.
- W4294286522 title "Metal oxides as photoanodes for photoelectrochemical water splitting: synergy of oxygen vacancy" @default.
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