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Building Niobate Nanoparticles with Hexaniobate Lindqvist Ions
Author(s) -
Tong Hua,
Ye Jinhua
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200901133
Subject(s) - nanocrystalline material , nanoparticle , niobium , amorphous solid , chemistry , ion , crystal structure , natural bond orbital , nanocrystal , lithium niobate , nanotechnology , mineralogy , chemical engineering , materials science , crystallography , optoelectronics , molecule , organic chemistry , engineering
We present a general method to fabricate niobate nanoparticles (NPs) by using hexaniobate Lindqvist ions as niobium source. First, soft‐chemical synthesis was adopted to prepare amorphous compound NPs, which subsequently served as parent bodies, affording not only nanoscale size but also optimal compositions and elements for the final annealed nanocrystalline niobates. By this method, a series of nanocrystalline niobates, including MNbO 4 (M = In, Ga, Fe), MNb 2 O 6 (M = Ba, Sr, Ni, Cd, Pb), M x Fe 1– x NbO 4 (M = In, Ga), M x Ni 1– x Nb 2 O 6 (M = Ba, Sr), and (AgNb) 1– x (SrTi) x O 3 , were successfully prepared. Experimental results presented herein show that the compositions and components of niobate NPs can be adjusted as desired, markedly influencing the crystal phase, energy band structure, and photocatalytic performance of the niobate NPs.