具有增强锂存储性能的SnO纳米壳的制备

Preparation of SnO Nanoshells with Enhanced Lithium-Storage Properties.

作者信息

Wu Han, Song Haizeng, Lin Zixia, Yan Shancheng, Shi Yi

机构信息

Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, PR China.

Testing Center, Yangzhou University, Yangzhou 225009, PR China.

出版信息

J Nanosci Nanotechnol. 2020 Mar 1;20(3):1832-1837. doi: 10.1166/jnn.2020.17131.

DOI:10.1166/jnn.2020.17131

PMID:31492349

Abstract

Tin monoxide is a kind of IV-VI metal monoxides that has attracted great deal of attention due to its wide optical band gap and high field effect mobility in the past decade. On the other hand, nanoshell is a unique porous structure. Its curved shell provides a shelter for the hollow core, as well as a much bigger special surface area. We in this study systematically prepared SnO nanoshells through a facile self-assembly method under different annealing conditions. The lithium ion batteries were fabricated immediately based on the as prepared nanoshells. The capacity of as fabricated lithium ion batteries was 559.3 mAhg at rate performance of 0.1 Ag and 497.5 mAhg at 1 Ag in 30th cycle. This work exhibited high application performance of SnO nanoshells. We hope this work will help study similar structure and applications of IV-VI metal monoxides.

摘要

一氧化锡是一种IV-VI族金属氧化物，在过去十年中，因其宽光学带隙和高场效应迁移率而备受关注。另一方面，纳米壳是一种独特的多孔结构。其弯曲的壳为中空核提供了庇护，同时也具有更大的比表面积。在本研究中，我们通过一种简便的自组装方法，在不同的退火条件下系统地制备了SnO纳米壳。基于所制备的纳米壳立即制造了锂离子电池。所制造的锂离子电池在0.1 A/g的倍率性能下容量为559.3 mAh/g，在第30次循环中1 A/g时容量为497.5 mAh/g。这项工作展示了SnO纳米壳的高应用性能。我们希望这项工作将有助于研究IV-VI族金属氧化物的类似结构和应用。