MQDs掺杂NiFe片组成的纳米花用于电催化乙二醇氧化反应  

Nanoflowers Composed of MQDs-doped NiFe Sheets for Electrocatalytic Ethylene Glycol Oxidation Reaction

作　　者：张艳[1] 吴荻 徐继香[1] 赖建平 Zhang Yan;Wu Di;Xu Jixiang;Lai Jianping(College of Chemistry Molecular Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学化学与分子工程学院,山东青岛266042

出　　处：《山东化工》2023年第19期1-9,共9页Shandong Chemical Industry

基　　金：国家自然科学基金(51772162,22001143,52072197);山东省自然科学基金项目(ZR2019JQ14)。

摘　　要：就二维材料而言,有机金属框架纳米片不仅能提供高效的质量传输和电荷转移,而且由于有大量可利用的活性位点,还能提高催化性能,它们独特的固有结构提供了比其他多孔材料(如沸石和活性炭等)获得更高表面积的机会,作为一种功能材料是非常理想的,但由于其介电性能差导致应用受到限制,通过引入量子点,在最小反应物用量的同时实现高性能,降低催化剂的成本。首先采用通用合成方法制备水溶性超小碳化钛量子点,之后利用简单的水热将碳化钛量子点成功掺杂到镍铁纳米片中。利用量子点的高速电子转移特性和优异的反应动力学,结合镍铁纳米片对有机分子的良好吸附性,纳米花催化剂表现出优异的电催化乙二醇氧化反应活性,组成的纳米花因自支撑结构具有良好的稳定性。In the case of two-dimensional materials,nanosheets not only provide efficient mass transfer and charge transfer but also enhance the performance of catalysis due to a large number of available active sites.Their unique intrinsic structure provides access to a higher surface area than other porous materials and is ideal as a functional material,but their poor dielectric properties and poor reaction kinetics lead to limited applications.By introducing quantum dots,high performance is achieved while minimizing the number of reactants and reducing the cost of the catalyst.In this work,water-soluble ultra-small quantum dots were first prepared using a generic synthetic method,followed by the successful doping of titanium carbide quantum dots into NiFe nanosheets using a simple hydrothermal process.Taking advantage of the high-speed electron transfer properties and excellent reaction kinetics of quantum dots,combined with the good adsorption of NiFe NSs to organic molecules,the composed nanoflowers have good stability due to the self-supporting structure.

关 键 词：碳化钛量子点 镍铁纳米片 掺杂 乙二醇氧化 

分 类 号：TQ426[化学工程]