基于柴油加氢的金属/石墨烯纳米催化剂的界面交互作用及结构设计

项目名称： 基于柴油加氢的金属/石墨烯纳米催化剂的界面交互作用及结构设计

项目编号： No.51272019

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 宋怀河

作者单位： 北京化工大学

项目金额： 85万元

中文摘要： 针对清洁柴油的生产对于高活性新兴催化剂的需求，本课题着眼于一种新型的加氢催化剂材料的结构设计，拟以石墨烯和金属化合物为原料通过共热解法或Kirkendall效应制备石墨烯负载纳米实心或空心金属氧化物（Mo、W、Co、Ni等）颗粒，获得金属颗粒（5-40nm）均匀锚定在石墨烯表面的复合催化材料，并通过调整石墨烯的边界、空位、官能团以及合成工艺参数控制石墨烯与金属的界面交互作用，考察界面交互作用对于硫化时金属催化剂的形态、结构及性能的影响。将此用于模型化合物、实际油品等加氢反应，考察催化剂结构、界面交互作用与催化效果的关系。优化催化剂结构，最终合成出活性组分高度分散，又具有合适的界面交互作用，并能阻止催化过程中活性组分团聚和长大的新型催化材料，赋予其长使用寿命。为提高纳米金属催化剂的综合性能、促进石油化工催化新材料的发展及材料学与催化科学的交叉融合奠定基础。

中文关键词： 石墨烯；氧化物；界面交互作用；催化剂；电极材料

英文摘要： New type of catalysts for diesel hydrogenation with high activity is in great need to produce clean diesel in order to alleviate the environmental pollution. Activity of hydrogenation catalysts is affected not only by the intrinsic specific characteristics of active components, but also by the properties of support meterials. The rising of graphene opens up new opportunities for design of novel catatlysts for the diesel hydrogenation. 2-dimentional graphene nanosheets may also have a great application potential as support materials for hydrogenation catalysts of diesel, because graphene possesses many excellent properties. However, to best of our knowledge, no reports on the use of graphene-based metal catatlysts in the field of hydrogenation of diesel or model compound up to now. In this program, the design of graphene-based metal nanocomposites are used as catalysts for diesel hydrogenation will be carried out based on the interfacial interaction between active components and graphene. The structural control of active components will be come true by two synthesis approaches: solid metal oxide/graphene nanocatalysts will be obtained by the co-pyrolysis of graphene and metal compounds (Mo, Co, W, Ni etc.) at the temperature in the range of 300-600 ℃, and hollow metal oxide/graphene nanocatalysts will be prepared

英文关键词： Graphene；Metal oxides；Interfacial interaction；Catalyst；Electrode materials