Journal
CARBON
Volume 49, Issue 4, Pages 1133-1144Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2010.11.028
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Funding
- Natural Science and Engineering Research Council of Canada (NSERC)
- Canada Research Chair (CRC) Program
- Canadian Foundation for Innovation (CFI)
- Ontario Research Fund (ORF)
- Early Researcher Award (ERA)
- University of Western Ontario
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Atomic layer deposition (ALD) was used to synthesize metal oxide-carbon nanotube (MO-CNT) hybrid materials by coating nitrogen-doped CNTs (N-CNTs). SnO2-CNT hybrids were produced using SnCl4 and water as precursors and exhibited many unique features. It was demonstrated that the use of N-CNTs was beneficial for directly initiating the ALD of SnO2 (ALD-SnO2) and that adjustable ALD parameters were favorable for controlling the morphology and phase of the deposited SnO2. The cyclic and surface-controlled nature of ALD contributed to the morphologies of SnO2 tunable from nanoparticles to nanofilms, and the temperature-dependent characteristics of the ALD-SnO2 rendered the phases of SnO2 controllable with amorphous, crystalline, or a mixed phase by the former two. Furthermore, this study also explored the underlying mechanisms for the controlled synthesis of SnO2-CNT hybrid materials. (C) 2010 Elsevier Ltd. All rights reserved.
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