Institute for Superconducting & Electronic Materials, University of Wollongong, NSW 2522, Australia.
Nanoscale. 2010 Jun;2(6):1011-7. doi: 10.1039/c0nr00009d. Epub 2010 May 5.
Novel plum-branch-like carbon nanofibers (CNFs) decorated with SnO2 nanocrystals have been synthesized by electrospinning and subsequent thermal treatment in an Ar/H2O atmosphere. The morphologies of the as-synthesized SnO2/CNF composites and the contents of carbon and SnO2 can be controlled by adjusting the heat treatment temperature. It is proposed that the growth of SnO2/CNF composites follows the outward diffusion of tin composites from the as-spun tin composite/polyacrylonitrile (PAN) nanofibers, pyrolysis of PAN and oxidation of tin composites, and then formation of SnO2 nanocrystals around the CNFs. This novel 1D SnO2/CNF composite may have potential application in nanobatteries, nano fuel cells, and nanosensors. A preliminary result has revealed that the SnO2/CNF composite presents favourable electrochemical performance in lithium-ion batteries.
新型梅花状碳纳米纤维（CNF）上负载了 SnO2 纳米晶，通过静电纺丝和随后在 Ar/H2O 气氛中的热处理制备得到。通过调整热处理温度，可以控制所合成的 SnO2/CNF 复合材料的形态和碳及 SnO2 的含量。提出的 SnO2/CNF 复合材料的生长遵循从纺丝态锡复合/PAN 纳米纤维中外向扩散的锡复合材料、PAN 的热解和锡复合材料的氧化，然后在 CNF 周围形成 SnO2 纳米晶的过程。这种新型的 1D SnO2/CNF 复合材料可能在纳米电池、纳米燃料电池和纳米传感器中有潜在的应用。初步结果表明，SnO2/CNF 复合材料在锂离子电池中表现出良好的电化学性能。
