Anodic TiO2 nanotubes: A promising material for energy conversion and storage. (December 2022)

• Record Type: Journal Article
• Authors: Galstyan, Vardan; Macak, Jan M.; Djenizian, Thierry
• Is Part Of: Applied materials today. Volume 29(2022)
• Publication Date: 2022-12
• Subjects: TiO2 nanotubes -- Nanostructured electrodes -- Li-ion microbatteries, Supercapacitors, Fuel cells; Materials science -- Periodicals; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1016/j.apmt.2022.101613
• Languages: English
• ISSNs: 2352-9407

Abstract

Highlights: Anodic TiO2 nanotube layers of different dimensions were developed over past years. Their properties and surface area make them ideal nanostructured electrodes. Their application in batteries, fuells cells and supercapacitors is reviewed inhere. Most recent post-treatements (such as coatings, decorations) are also reviewed. Their future prospects for energy applications are outlined. Abstract: Self-organized TiO2 nanotube (TNT) layers formed by an anodization process have emerged for the conception of innovative systems in the conversion and storage of energy. Herein, the latest progress in power sources with a remarkable electrochemical performance involving these versatile nanomaterials is reported. Besides the key role of their physico-chemical properties, the significance of interfaces established with other materials to achieve the fabrication of batteries, supercapacitors and fuel cells showing high electrochemical performance is also highlighted. Particularly, recent approaches based on the chemical modifications of the TNTs by doping, solid-state reactions, atomic layer deposition, electrodeposition of metallic nanoparticles and copolymers are presented. In addition, the strong potential offered by TNT layers for future research works is discussed. This progress report seeks to demonstrate the strong input of anodic TNT layers for developing the next generation of autonomous devices while stimulating more research efforts dedicated to modern technological applications.