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説明:

Hollandite-type MnO2 and its solid solutions with TiO2 for cathode active material of rechargeable magnesium batteries were successfully synthesized with a hydrothermal method under atmospheric pressure. The solubility limit of Ti in Mn1−xTixO2 was x ≃ 0.2, and average particle size decreased with an increase in x. Despite the high surface area, Mn1−xTixO2 exhibited lower catalytic activity for oxidative electrolyte decomposition and better discharge capacity retention than MnO2. Capacity retention was the highest and the increment of charge overpotential during cycles was the smallest at x = 0.2.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Rechargeable magnesium battery, Hollandite-type α-Mn1−xTixO2, Atmospheric pressure hydrothermal synthesis

刊行年月日: 2025-09-01

出版者: Ceramic Society of Japan

掲載誌:

• Journal of the Ceramic Society of Japan (ISSN: 13486535) vol. 133 issue. 9 25049

研究助成金:

• JST JPMJGX23S1

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.2109/jcersj2.25049

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更新時刻: 2025-09-03 12:30:21 +0900

MDRでの公開時刻: 2025-09-03 12:20:37 +0900