Institute of Nanotechnology, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe, Germany.
Phys Chem Chem Phys. 2011 Nov 21;13(43):19624-31. doi: 10.1039/c1cp22298h. Epub 2011 Oct 11.
We studied the electrochemical insertion of Li in mechanochemically prepared Zn(2)SnO(4). The mechanism of the electrochemical reaction was investigated by using X-ray diffraction, nuclear magnetic resonance spectroscopy, and Mössbauer spectroscopy. Changes in the morphology of the Zn(2)SnO(4) particles were studied by in situ scanning electron microscopy. The results were compared with mixtures of SnO(2) + ZnO and with Zn(2)SnO(4) prepared by conventional solid-state synthesis and showed that the mechanochemically prepared Zn(2)SnO(4) exhibits the best cyclic stability of these samples.
我们研究了机械化学法制备的 Zn(2)SnO(4)中锂离子的电化学嵌入。通过 X 射线衍射、核磁共振波谱和穆斯堡尔谱研究了电化学反应的机理。通过原位扫描电子显微镜研究了 Zn(2)SnO(4)颗粒形貌的变化。将结果与 SnO(2) + ZnO 混合物和通过传统固态合成制备的 Zn(2)SnO(4)进行了比较,结果表明,机械化学法制备的 Zn(2)SnO(4)在这些样品中表现出最好的循环稳定性。