Hou Kai, Wen Xin, Yan Peng, Tang Aidong, Yang Huaming
Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China.
Hunan Key Lab of Mineral Materials and Application, Central South University, Changsha, 410083, China.
Nanoscale Res Lett. 2017 Dec;12(1):215. doi: 10.1186/s11671-017-1979-y. Epub 2017 Mar 23.
Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO to prepare an emerging nanocomposite (SnO-C@Sep), which exhibited enhanced electrochemical performance. Sepiolite could act as a steady skeleton, carbon coating principally led sepiolite from an isolated to an electric state, and decoration of nanoscale SnO was beneficial to the functionization of sepiolite. Cycling performances indicated that SnO-C@Sep showed higher discharge capacities than commercial SnO after 50 cycles. The nanocomposite SnO-C@Sep possessed enhanced lithium storage properties with stable capacity retention and low cost, which could open up a new strategy to synthesize a variety of functional hybrid materials based on the cheap and abundant clay and commercialization of lithium-metal oxide batteries.
天然海泡石（Sep）纳米纤维被碳和纳米级SnO包覆以制备一种新型纳米复合材料（SnO-C@Sep），其展现出增强的电化学性能。海泡石可作为稳定的骨架，碳包覆主要使海泡石从孤立状态转变为导电状态，而纳米级SnO的修饰有利于海泡石的功能化。循环性能表明，经过50次循环后，SnO-C@Sep的放电容量高于商业SnO。纳米复合材料SnO-C@Sep具有增强的储锂性能，容量保持稳定且成本低，这可为基于廉价且丰富的黏土合成各种功能性混合材料以及锂金属氧化物电池的商业化开辟新策略。
