Abstract
Nanocrystalline manganese oxide powders have been prepared at 25 °C by precipitation from Mn(NO3)2 aqueous solution. The presence and addition sequence of H2O2 significantly influence particle characteristics of the resulting manganese oxides, including crystal structure, particle size and morphology, and surface area, depending upon molar ratio of H2O2 with respect to Mn. The precipitation from preoxidized manganese solution by H2O2 results in flakelike-shaped amorphous hydrous manganese oxide (MnO2 xH2O). In the absence of H2O2, on the other hand, amorphous Mn(OH)2 is obtained, and a part of Mn(OH)2 subsequently transforms into crystalline Mn3O4 by oxidation in air. Relative population of amorphous Mn(OH)2 decreases by dissolution when post-treated with H2O2. At Mn:H2O2 = 1:4, the well-defined 16-nm-sized nanocrystalline Mn3O4 with homogenous particle morphology is prepared. The treatment with excess H2O2, however, destroys crystalline Mn3O4 and leads to further oxidation of the aqueous manganese species. Under these conditions, a mixture of needlelike Mn2O3 and cubelike Mn3O4, including amorphous MnO2 xH2O, is obtained.
Similar content being viewed by others
References
T. Yamashita and A. Vannice, J. Catal. 161, 254 (1996).
L. Sanchez, J. Farcy, J-P. Pereira-Ramos, L. Hernan, J. Morales, and J.L. Tirado, J. Mater. Chem. 6, 37 (1996).
V.V. Pankov, Ceram. Int. 14, 87 (1988).
C.H. Hare and M.G. Fernald, Modern Paint Coat. 74, 40 (1984).
T. Hara, T. Tomisawa, T. Kurosu, and T.K. Doy, J. Electrochem. Soc. 146, 2333 (1999).
Y. Arimoto, K. Nakamura, K. Hanawa, A. Hatada, S. Kishii, R. Suzuki, and N. Urda, European Patent No. EP0816457 (7 Jan 1998).
K. Hanawa, K. Suzuoka, K. Kato, and T. Sukaue, Boundary 14, 8 (1998) (in Japanese).
G. Zhang, G. Burdick, F. Dai, T. Bibby, and S. Beaudoin, Thin Solid Films 332, 379 (1998).
S.L. Brock, N. Duan, Z.R. Tian, O. Giraldo, H. Zhou, and S.L. Suib, Chem. Mater. 10, 2619 (1998).
S. Bach, M. Henry, N. Baffier, and J. Livage, J. Solid State Chem. 88, 325 (1990).
J. Luo and S.L. Suib, J. Phys. Chem. B 101, 10403 (1997).
Q. Feng, K. Yanagisawa, and N. Yamasaki, J. Porous Mater. 5, 153 (1998).
A. Ardizzone, C.L. Bianchi, and D. Tirelli, Colloid Surf. 134, 305 (1998).
I.U. Haq and E. Matijević, J. Colloid Interface Sci. 192, 104 (1997).
C. Zhiwen, Z. Shuyuan, T. Shun, L. Fanqing, W. Jian, J. Sizhao, and Z. Yuheng, J. Cryst. Growth 180, 280 (1997).
S.B. Kanungo, J. Chem. Tech. Biotechnol. 50, 91 (1991).
Y.P. Liu, Y.T. Qian, Y.H. Zhang, M.W. Zhang, C.S. Wang, and L. Yang, Mater. Res. Bull. 32, 1055 (1997).
N.A. Dhas, Y. Koltypin, and A. Gedanken, Chem. Mater. 9, 3159 (1998).
Z. Weixin, W. Cheng, Z. Xiaoming, X. Yi, and Q. Yitai, Solid State Ionics 117, 331 (1999).
S.B. Kanungo, K.M. Parida, and B.R. Sant, Electrochim. Acta 26, 1147 (1981).
H.W. Nesbitt and D. Banerjee, Am. Mineral. 83, 305 (1998).
S.H.R. Davies and J.J. Morgan, J. Colloid Interface Sci. 129, 63 (1989).
J.W. Murry, J. Colloid Interface Sci. 46, 357 (1974).
S.B. Kanungo, K.M. Parida, and B.R. Sant, Electrochim. Acta 26, 1157 (1981).
S. Fritsch and A. Navrotsky, J. Am. Ceram. Soc. 79, 1761 (1996).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Moon, J., Awano, M., Takagi, H. et al. Synthesis of nanocrystalline manganese oxide powders: Influence of hydrogen peroxide on particle characteristics. Journal of Materials Research 14, 4594–4601 (1999). https://doi.org/10.1557/JMR.1999.0622
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1999.0622