Hydrothermal Synthesis of Manganese Dioxide Nanoparticles as Cathode Material for Rechargeable Batteries
-
- MOON Jin-Hee
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University
-
- MUNAKATA Hirokazu
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University
-
- KAJIHARA Koichi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University
-
- KANAMURA Kiyoshi
- Department of Applied Chemistry, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University
この論文をさがす
説明
Rod-shaped manganese dioxide (MnO2) nanoparticles with three different crystallographic phases, namely α-, β-, and γ-MnO2, were hydrothermally prepared. The products were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), Brunaure-Emmett-Teller (BET) method, and electrochemical measurements as cathode materials for secondary lithium-ion batteries. The crystalline phase of MnO2 depended mainly on the Mn concentration of precursor solution and reaction temperature whereas it was not influenced by the pH value of precursor solution. All the samples were obtained as secondary particles composed of rod-shaped nanoparticles and the sizes of α- and γ-MnO2 were smaller than that of β-MnO2. In electrochemical tests, the γ-MnO2 had the highest initial capacity of 190 mA h g−1 among three different crystal phases and maintained better performance than the other crystallographic samples in the subsequent discharge/charge cycles. As a result, the electrochemical performance of MnO2 depends on the crystal structure rather than the particle size.
収録刊行物
-
- Electrochemistry
-
Electrochemistry 81 (1), 2-6, 2013
公益社団法人 電気化学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001206496288256
-
- NII論文ID
- 130003376655
-
- NII書誌ID
- AN00151637
-
- COI
- 1:CAS:528:DC%2BC3sXkslGlsQ%3D%3D
-
- ISSN
- 21862451
- 13443542
-
- NDL書誌ID
- 024164970
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用可