Nanostructured Manganese Oxide Particles from Coordination Complex Decomposition and their Catalytic Properties for Ethanol Oxidation
Nanostructured Manganese Oxide Particles from Coordination Complex Decomposition and their Catalytic Properties for Ethanol Oxidation
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配位络合物分解纳米结构氧化锰颗粒及其对乙醇氧化的催化性能
DOI：
10.1166/jnn.2012.6686
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
H. Palza
中科院分区：
文献类型：
--
作者：
N. M. Sanchez-Ballester;et al.;H. Palza
具有复杂形态和不同纳米结构（即，球形/层状）通过初始制备锰与1，4，7，10-四氮杂环十二烷（cyclen）的配位络合物来合成，随后表征纳米结构氧化物作为乙醇氧化的催化材料。虽然X射线光电子能谱分析表明它们的表面具有不同的化学组成，但样品呈现出体相γ-MnO 2结构。这些纳米结构颗粒中的一些显示出对乙醇氧化的高催化活性，与传统的MnO 2颗粒相比，能够使反应温度降低超过80 °C。颗粒的高催化活性取决于其形貌，并建立了形貌与比表面积之间的关系。有人提出，这些新的纳米结构的锰氧化物颗粒可能是高活性的催化氧化的其他挥发性有机化合物（VOCs）开放其进一步发展的环境应用。
Novel manganese oxide particles with complex morphologies and different nanostructures (i.e., spherical/lamellar) were synthesized by initial preparation of a coordination complex of manganese with 1,4,7,10-tetraazacyclododecane (cyclen), followed by characterization of the nanostructured oxide as a catalytic material for ethanol oxidation. The samples present a bulk γ-MnO2 structure although X-ray photoelectron spectroscopy analysis reveals that their surfaces have different chemical compositions. Some of these nanostructured particles show high catalytic activities for ethanol oxidation enabling a decrease of the reaction temperature by more than 80 °C as compared with traditional MnO2 particles. The high catalytic activity of the particles depends on their morphology and a relationship between morphology and specific area was established. It is proposed that these novel nanostructured manganese oxide particles may be highly active in the catalytic oxidation of other volatile organic compounds (VOCs) opening up their further development for environmental applications.