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Top-down synthesis of sponge-like Mn3O4 at low temperature

机译：在低温下自上而下的海绵状Mn3O4合成

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摘要

A top-down synthetic method was developed for the fabrication of sponge-like Mn3O4 composed of Mn3O4 nanocrystals by decomposition of manganese formate at 200 degrees C. The samples were characterized in terms of their structural and morphological properties by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET) studies. TEM and SEM images showed that the morphology of sponge-like Mn3O4 structures was mostly retained from the morphology of the manganese formate precursor, which was controlled by the solvothermal process. Large sponge-like Mn3O4 structures exhibiting crystallographic symmetry were prepared under solvothermal treatment for a long time. The XRD pattern showed that the Mn3O4 exhibit a tetragonal hausmannite structure. The results of N-2 adsorption analysis indicated that the sponge-like Mn3O4 nanostructures possess high surface area. The possible formation mechanism of Mn3O4 nanostructures has been discussed.
机译：开发了一种自上而下的合成方法，用于通过在200℃下分解锰甲酸盐的分解制备由Mn3O4纳米晶体组成的海绵状Mn3O4的制备。通过X射线衍射通过它们的结构和形态特性表征样品（ XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM）和Brunauer-Emmett-Teller（BET）研究。 TEM和SEM图像显示海绵状Mn3O4结构的形态主要是由锰甲酸酯前体的形态保留，由溶剂热法控制。在溶剂热处理中制备了在溶剂质对称的大海绵状Mn3O4结构长时间制备。 XRD图案显示MN3O4表现出四方Hausmannite结构。 N-2吸附分析的结果表明海绵状Mn3O4纳米结构具有高表面积。讨论了Mn3O4纳米结构的可能形成机制。

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  • 来源
    《RSC Advances》 |2019年第40期|共7页
  • 作者

    Lu Wangwei; He Kay; Zhao Gaoling; Song Bin; Zhou Jing; Dong Weixia; Han Gaorong;

  • 作者单位

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ State Key Lab Silicon Mat Hangzhou 310027 Zhejiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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