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Rapid Microwave Synthesis of CeO 2 Quantum Dots
Author(s) -
Lehnen Thomas,
Schläfer Johannes,
Mathur Sanjay
Publication year - 2014
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300625
Subject(s) - alkoxide , thermal decomposition , nucleation , materials science , cerium , cerium oxide , nanoparticle , microwave , solvothermal synthesis , metal , decomposition , oxide , quantum dot , fabrication , nanotechnology , chemical engineering , inorganic chemistry , chemistry , catalysis , organic chemistry , medicine , physics , alternative medicine , pathology , quantum mechanics , engineering , metallurgy
The synthesis and structural characterization of two new homo‐ and heteroleptic tetravalent cerium complexes with tert ‐butoxo and heteroarylalkenolate ligands of the general formula [Ce(O t Bu) 2– x L x +2 ] [ x = 2 ( 1 ), x = 0 ( 2 )] [ L = Dmox‐CHC(CF 3 )O] is described. Their thermal decomposition behavior as well as their potential as single‐source precursor for the fabrication of nanostructured ceria was evaluated. By using the heteroleptic alkoxide complex 2 as metal organic precursor, an efficient synthesis of highly crystalline CeO 2 QDs with a narrow size distribution was achieved by microwave assisted solvothermal synthesis in NMP. It was found that an expedient choice of precursor enabled the replacement of additives like bases or other mineralizer and opens an efficient pathway for controlled nucleation of metal oxide nanoparticles.