Preparation of tin oxide particles using tin-contained organic substance of dioctyltin oxide as the starting material by a calcination method

煅烧 氧化锡 材料科学 阳极 氧化物 锂(药物) 电化学 二氧化锡 化学工程 无机化学 冶金 化学 电极 催化作用 有机化学 物理化学 内分泌学 工程类 医学
作者
Keqiang Ding,Jingwei Han,Xiaojing Gao,Lanjun Zhou,Runling Qu
出处
期刊:Materials Chemistry and Physics [Elsevier]
卷期号:232: 354-361 被引量:13
标识
DOI:10.1016/j.matchemphys.2019.04.091
摘要

For the first time, erect and flaky particles of tin oxides (SnO2), as anode materials for lithium ion batteries (LIBs), were prepared by a calcination method using dioctyltin oxide as the starting material. The samples calcined at 300, 500 and 700 °C under the air conditions were nominated as sample a, b and c, respectively. And the sample calcined at 500 °C under the N2 atmosphere was labeled as sample b1. The obtained XRD patterns strongly indicated that tin oxides were the main components of all prepared samples. Also, in all synthesized samples, erect and flaky particles were distinctly observed by SEM. More importantly, the initial discharge capacities of sample a, b, c and b1 at 100 mA g-1, revealed by the galvanostatic charge-discharge measurements, were 829, 885, 815 and 729 mAh g-1, respectively. And after 20 cycles, besides sample a, the discharge capacities at 100 mA g-1 of sample b, c and b1 were all higher than 300 mAh g-1, showing acceptable electrochemical performance. A novel way, i.e., calcining the Sn-contained organic substance of dioctyltin oxide to prepare tin oxides anode materials for LIBs, was developed in this preliminary work, which has opened up a new avenue for producing metal oxides based anode materials for LIBs.
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