Topochemical Oxidation Preparation of Regular Hexagonal Manganese Oxide Nanoplates with Birnessite-Type Layered Structure
Topochemical Oxidation Preparation of Regular Hexagonal Manganese Oxide Nanoplates with Birnessite-Type Layered Structure
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拓扑化学氧化制备水钠锰矿型层状结构正六方氧化锰纳米片
DOI：
10.1021/cg500921u
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发表时间：
2014-10
期刊：
影响因子：
--
通讯作者：
Liu, Zong-Huai
中科院分区：
文献类型：
--
作者：
Kang, Liping;Hao, Zhengping;Lei, Zhibin;Liu, Zong-Huai
以Mn（OH）2为前驱体，在NaClO溶液中，室温下局部化学氧化24 h，得到了分散性好、形貌规则的层状锰氧化物纳米片，并通过XRD、FESEM和TEM、XPS、拉曼光谱和TG-DTA分析对其形成过程进行了系统研究。研究结果表明，所制备的水钠锰矿型层状锰氧化物纳米片继承了其前驱体Mn（OH）2的层状结构和规则的六方形貌。由MnO 2颗粒自组装而成的规则六边形纳米片的每个侧边约为150 nm，厚度约为120 nm。前驱体Mn（OH）2和氧化反应时间影响材料的分散性和形貌。这种中间体介导的拓扑化学氧化方法有助于设计具有新颖形貌和潜在应用的新型金属氧化物材料。
The birnessite-type layered manganese oxide nanoplates with good dispersity and regular hexagonal morphology were obtained by topochemical oxidizing precursor Mn(OH)2 in NaClO solution for 24 h at room temperature, and its formation process was systematically investigated on the basis of the XRD pattern, FESEM and TEM images, XPS, Raman spectra, and TG-DTA analysis. The research results showed that the obtained birnessite-type layered manganese oxide nanoplates inherited the layered structure and regular hexagonal morphology from their Mn(OH)2 precursor. The regular hexagonal nanoplates were about 150 nm in each lateral edge with a thickness of 120 nm, which were self-assembled from MnO2 particles. The dispersity and regular morphology of the obtained materials were affected by the precursor Mn(OH)2 and the oxidation reaction times. This intermediate-mediated topochemical oxidation method could contribute to the design of new kinds of metal oxide materials with novel morphology and potential application.
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影响因子：
3.3
作者：
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通讯作者：
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