@article{oai:ir.kagoshima-u.ac.jp:00004690,
 author = {千野, 光貞 and CHINO, Mitsusada and 深山, 正光 and FUKAYAMA, Masamitsu},
 journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University},
 month = {Sep},
 note = {α-Manganese dioxide was obtained by treating α-Mn_2O_3 with the mixture of acids under the condition of 95°C for 2 hours.
In this study, several cations were added to the reaction system, and the products of the reaction obtained were observed by X-ray diffraction and electron microscope.
The result were as follows ;
(1) When such cations Na^+, K^+, Ni^<2+>, Cu^<2+>, and Al^<3+> were added to the mixture of acids (3N-CH_3COOH+8N-HNO_3), the products were α-MnO_2. But there was a bit of variation in the content of α-MnO_2 and its crystal growth.
(2) When NH_4^+ was added, the product was α-MnO_2 with remarkable crystal growth.
(3) In the case of Fe^<3+>, when the mole fractions was less than 0.3, the product was α-MnO_2, when the mole fractions were between 0.4 and 0.5, the main products was α-MnO_2, and when more than 0.6, the product was confirmed to be α-Mn_2O_3.},
 pages = {125--131},
 title = {α-MnO_2の作成における各種カチオンの影響},
 volume = {22},
 year = {1980}
}