Synthesis of potassium niobates by the microwave-assisted solvothermal method

Autor:	L M C Honorio, Thiago M. Duarte, Elson Longo, Ricardo L. Tranquilin, A. G. Souza, A. S. Maia, I. M. G. Santos, A. S. Brito, Juliana Kelly Dionízio de Souza
Rok vydání:	2015
Předmět:	Post annealing Chemical engineering chemistry Potassium Scientific method Inorganic chemistry chemistry.chemical_element Microwave assisted
Zdroj:	IOP Conference Series: Materials Science and Engineering. 97:012001
ISSN:	1757-899X 1757-8981
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4212f111ed24e4d04be1d0d451c11b00 https://doi.org/10.1088/1757-899x/97/1/012001 Zobrazit plný text záznamu