01457nas a2200253   4500008004100000022001400041245005900055210005900114260009900173300001200272490000700284520065200291653002500943653001300968653001600981653001200997653001801009100001901027700001801046700001501064700001801079700001301097856009301110       2008                        eng d  a0272-884200aNovel hydroxide precursors to prepare NaNbO3 and KNbO30 aNovel hydroxide precursors to prepare NaNbO3 and KNbO3  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcAPR  a671-6730 v343 a<p>Firstly, fresh niobium, hydroxide was precipitated from NbF5 solution using an aqueous ammonium hydroxide under basic conditions. Then a simple procedure of mixing potassium (or sodium) and niobium hydroxides together and heating at a low temperature (&lt;400 degrees C) produced KNbO3 (KN) or NaNbO3 (NN) powders. This is the lowest temperature so far reported for the formation of these phases. The phase content and lattice parameters are determined by X-ray diffraction (XRD). The average particle size and morphology were studied by scanning electron microscopy (SEM). (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.</p>10achemical preparation10aniobates10aPerovskites10apowders10aX-ray methods1 aMuthurajan, H.1 aKumar, H., H.1 aSamuel, V.1 aGupta, U., N.1 aRavi, V.  uhttps://library.ncl.res.in/content/novel-hydroxide-precursors-prepare-nanbo3-and-knbo3-0