3D flower-like MnCO3 microcrystals: evolution mechanisms of morphology and enhanced electrochemical performances | |
Mu, Yanlin1; Wang, Li1; Zhao, Yan1; Liu, Mengjiao1; Zhang, Wei2![]() | |
刊名 | ELECTROCHIMICA ACTA
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2017-10-10 | |
卷号 | 251页码:119-128 |
关键词 | 3d Flower-like Mnco3 Microcrystals Hydrothermal Synthesis Evolution Mechanisms Of Morphology Electrochemical Performances |
ISSN号 | 0013-4686 |
DOI | 10.1016/j.electacta.2017.08.104 |
英文摘要 | 3D flower-like MnCO3 microcrystals have been prepared via a facile hydrothermal method with the addition of sodium citrate (Na(3)Cit). The microstructures of the prepared microcrystals were characterized through X-ray diffraction (XRD), scanning electron microscope (SEM), thermogravimetric analysis (TGA), fourier transform infrared spectroscopy (FTIR) and N-2 adsorption. Moreover, a mechanism for the morphology evolution of 3D flower-like MnCO3 microcrystals was also discussed in detail. Using the obtained 3D flower-like MnCO3 microcrystals as anode for lithium ion batteries and a series of tests including charge-discharge test, cycling ability, rate performances, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were carried out. The results show that 3D flower-like MnCO3 microcrystals can be obtained by varying the reaction time and the dosage of Na(3)Cit at the hydrothermal temperature of 180 degrees C, and the suitable hydrothermal reaction time and the dosage of Na(3)Cit for the 3D flower-like MnCO3 microcrystals are 12 h and 3 mmol, respectively. The electrochemical measurements indicate that 3D flower-like MnCO3 microcrystals exhibit specific capacity of 384 mAh g(-1) at 0.2 C after 200 cycles, showing the significantly enhanced cycling performance than that of the obtained spherical MnCO3 microcrystals. (C) 2017 Elsevier Ltd. All rights reserved. |
资助项目 | National Science Foundation of China (NSFC)[51551202] ; Youth Innovation Promotion Association of CAS[2015316] ; Scientific Research Fund of Sichuan Provincial Education Department[17ZA0325] ; Scientific Research Fund of Sichuan Normal University[DJ2016-53] |
WOS研究方向 | Electrochemistry |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000413004200013 |
内容类型 | 期刊论文 |
源URL | [http://172.16.51.4:88/handle/2HOD01W0/140] ![]() |
专题 | 科研公共服务平台 |
作者单位 | 1.Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China |
推荐引用方式 GB/T 7714 | Mu, Yanlin,Wang, Li,Zhao, Yan,et al. 3D flower-like MnCO3 microcrystals: evolution mechanisms of morphology and enhanced electrochemical performances[J]. ELECTROCHIMICA ACTA,2017,251:119-128. |
APA | Mu, Yanlin.,Wang, Li.,Zhao, Yan.,Liu, Mengjiao.,Zhang, Wei.,...&Gao, Daojiang.(2017).3D flower-like MnCO3 microcrystals: evolution mechanisms of morphology and enhanced electrochemical performances.ELECTROCHIMICA ACTA,251,119-128. |
MLA | Mu, Yanlin,et al."3D flower-like MnCO3 microcrystals: evolution mechanisms of morphology and enhanced electrochemical performances".ELECTROCHIMICA ACTA 251(2017):119-128. |
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