Indium-Doped Rutile Titanium Oxide with Reduced Particle Length and Its Sodium Storage Properties
| Autor: | Yuri Tanaka, Yasuhiro Domi, Thi Hay Nguyen, Hiroyuki Usui, Hiroki Sakaguchi |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | ACS Omega, Vol 5, Iss 25, Pp 15495-15501 (2020) Usui Hiroyuki, Domi Yasuhiro, Thi Hay Nguyen, et al. Indium-Doped Rutile Titanium Oxide with Reduced Particle Length and Its Sodium Storage Properties. ACS OMEGA. 2020. 5(25). 15495-15501. doi:10.1021/acsomega.0c01623 ACS Omega |
| ISSN: | 2470-1343 |
| Popis: | We hydrothermally synthesized In-doped rutile TiO2 particles in an anionic surfactant solution and investigated the influences of In doping and the particle morphology on the Na+ storage properties. The solid solubility limit was found to be 0.8 atom % in In-doped TiO2. In the case where no surfactant was used, the best anode performance was obtained for 0.8 atom % In-doped TiO2 electrode by the benefits of three doping effects: (i) expanded diffusion-path size, (ii) improved electronic conductivity, and (iii) reduced electron charge density in the path. Further enhancement in the performance was achieved for the In-doped TiO2 with a reduced particle length by the synthesis in the surfactant solution. This electrode exhibited a better cycle stability and maintained a high discharge capacity of 240 mA h g–1 for 200 cycles. The reason is probably that Na+ can be inserted in the inner part of TiO2 particles because of its reduced particle length. |
| Databáze: | OpenAIRE |
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