Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Korea.
Nanoscale. 2012 Jan 21;4(2):473-7. doi: 10.1039/c1nr11128k. Epub 2011 Nov 17.
Thermal decomposition of Co(acac)(3) and Cu(acac)(2) in benzylamine leads to the formation of [100] directed Cu-doped h-CoO nanorods, which are very stable in an aqueous solution. The formation mechanism of the [100] directed Cu-doped h-CoO nanorods is fully elucidated by using first-principles calculations, demonstrating that Cu-doping not only changes the growth direction but also enhances the stability of the nanorods significantly. Evaluation of the electrochemical performance of Cu-doped h-CoO nanorods shows high initial Coulombic efficiency and ultrahigh capacity with excellent cycling performance, indicating their suitability as an anode material for next generation lithium-ion batteries.
在苄胺中，Co(acac)3 和 Cu(acac)2 的热分解导致 [100] 定向 Cu 掺杂 h-CoO 纳米棒的形成，该纳米棒在水溶液中非常稳定。通过第一性原理计算充分阐明了 [100] 定向 Cu 掺杂 h-CoO 纳米棒的形成机制，表明 Cu 掺杂不仅改变了生长方向，而且显著提高了纳米棒的稳定性。对 Cu 掺杂 h-CoO 纳米棒的电化学性能的评估表明，其具有高的初始库仑效率和超高的容量以及优异的循环性能，表明其适合作为下一代锂离子电池的阳极材料。
