Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 182, Issue 8, Pages 2298-2306Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2009.06.007
Keywords
Metal-organic framework; Solid-state thermolysis; Superstructure; Cu; CuO
Funding
- National Natural Science Foundation of China [20771058]
- Major State Basic Research Development Program [2006CB86104]
- NSFC [20721002]
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We describe here a one-step solid-state process for the synthesis of metal three-dimensional (3D) superstructures from a metal-organic framework (MOF). Novel symmetrical coralloid Cu 3D superstructures with surface interspersed with clusters of Cu nanoparticles were successfully synthesized by thermolysis of the [Cu-3(btc)(2)] (btc = benzene-1,3,5-tricarboxylato) MOF in a one-end closed horizontal tube furnace (OCTF). The obtained products were characterized by TGA. FT-IR, XRD, EDX, SEM, TEM, HRTEM and SAED. Different reaction conditions were discussed. Furthermore, the synthesized Cu samples were converted into CuO microstructures by in-situ calcination in the air. In addition, the possible formation mechanism was also proposed. This method is a simple and facile route, which builds a direct linkage between meta I-carboxylate MOF crystals and metal nano- or microstructures and also opens a new application field of MOF's. Crown Copyright (C) 2008 Published by Elsevier Inc. All rights reserved.
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