公开(公告)号：EP2417063A2

公开(公告)日：2012-02-15

申请号：EP10707224.1

申请日：2010-03-04

申请人： NTNU Technology Transfer AS

发明人： MADERO, Francesco ,  GRANDE, Tor ,  EINARSRUD, Mari-Ann ,  WIIK, Kjell

IPC分类号： C01G33/00 ,  C01G35/00 ,  C04B35/495 ,  C04B35/64 ,  H01L41/187 ,  H01L41/107

CPC分类号： C01G33/006 ,  C01G33/00 ,  C01G35/00 ,  C01P2002/30 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2002/88 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/62 ,  C04B35/495 ,  C04B35/62645 ,  C04B35/6267 ,  C04B2235/3201 ,  C04B2235/3205 ,  C04B2235/3227 ,  C04B2235/3251 ,  C04B2235/3272 ,  C04B2235/3298 ,  C04B2235/81 ,  H01L41/1873

摘要： A process for the preparation of a niobium compound of formula (I): DαNbβEγO-3-δ (I) wherein D is an alkali metal (e.g. Li, Na, K, Rb, Cs and/or Fr), alkaline earth metal (such as Ba, Ca, Mg and/or Sr), La and/or Bi and may be present as a mixture of two or more metals; E is Ta, Sb and/or Fe and may be present as a mixture of two or more metals; α is a positive number β is a positive number γ is zero or a positive number δ is a number 0 ≤ δ ≤ 0.5; and wherein the formula (I) has the perovskite or tungsten bronze structure; comprising spray pyrolising a solution, for example an aqueous solution, comprising metal (D) ions, Nb ions and if present, metal (E) ions.