Synthesis of potassium niobates by the microwave-assisted solvothermal method

被引：3

作者：

Duarte, T. M. ^{[1
]}

Honorio, L. M. C. ^{[1
]}

Brito, A. S. ^{[1
]}

Souza, J. K. D. ^{[1
]}

Longo, E. ^{[2
]}

Tranquilin, R. L. ^{[3
]}

Souza, A. G. ^{[1
]}

Santos, I. M. G. ^{[1
]}

Maia, A. S. ^{[1
]}

机构：

[1] Univ Fed Paraiba, LACOM INCTMN, Joao Pessoa, PB, Brazil

[2] Univ Estadual Paulista, UNESP, INCTM LIEC, Araraquara, SP, Brazil

[3] Univ Fed Sao Carlos, LIEC CDMF INCTMN, BR-13560 Sao Carlos, SP, Brazil

来源：

BRAZIL MRS MEETING 2014 | 2015年 / 97卷

关键词：

SOL-GEL METHOD; HYDROTHERMAL SYNTHESIS; K4NB6O17; WATER; DECOMPOSITION; EVOLUTION;

D O I：

10.1088/1757-899X/97/1/012001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Potassium niobates have been synthesized by different methods, but few papers use the microwave-assisted solvothermal method, with possibility of a deeper evaluation in this area. In this work, the synthesis of KNbO3, KNb3O8 and K4Nb6O17 was performed by calcinations of precursors obtained by the microwave-assisted solvothermal method. This study evaluates the influence of various synthesis parameters such as reaction time, pH of the reaction medium, K+ concentration in the precursor solution. The results show the formation of different niobates, KNbO3, KNb3O8, K4Nb6O17, depending on the short and long-range order of the precursor used in the post annealing process.

引用

页数：6

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