软模板法制备钯及其复合纳米材料和其催化性能的研究
发布时间：2019-04-03 07:18
【摘要】：纳米材料由于自身的优异性能吸引了众多研究者的目光。在各种制备纳米材料的方法中，软模板法得到了非常广泛的应用。该方法不仅能够有效调控纳米材料的形貌和尺寸，还因为模板自身的动力学特性，能够制备出具有特异形状的纳米材料。Pd在催化领域有着非常重要的应用，一系列Pd及其复合纳米材料已经被制备出来，并广泛应用到各类催化反应中。本论文利用软模板法可控制备出多种高性能的Pd及其复合纳米材料，并详细研究了这些材料的催化性能。本论文主要包括以下三部分内容：1.利用罗丹明B（RB）与Na2PdCl4因静电相互作用而形成的RB-PdCl42-复合物为牺牲模板，在室温条件下以NaBH4为还原剂，通过一步简单的软模板法成功制备出Pd空心纳米球，，并将其用于电催化氧化甲酸和甲醇；2.以RB-PdCl42-复合物为牺牲模板，以EDOT单体为还原剂，在80°C的条件下通过二者之间的氧化还原反应，一步法成功制备出PEDOT/Pd复合空心纳米球，并将其用于类过氧化物酶催化反应；3.利用十六烷基三甲基溴化铵（CTAB）与Na2PdCl4因静电相互作用而形成的层状结构的(CTA)2PdBr4复合物为牺牲模板，在90°C的条件下，通过模板和聚合物单体之间的一步氧化还原反应，成功制备了导电高分子/Pd复合纳米环，并详细研究了聚吡咯（PPy）/Pd复合纳米环对对硝基苯酚还原的催化性能。
[Abstract]:Nanomaterials have attracted the attention of many researchers because of their excellent performance. Soft template method has been widely used in various methods of preparing nano-materials. This method not only can effectively control the morphology and size of nano-materials, but also can produce nano-materials with special shape because of the kinetic properties of the template itself. PD has a very important application in the field of catalysis. A series of Pd and its composite nano-materials have been prepared and widely used in various catalytic reactions. In this paper, many kinds of high performance Pd and its composite nano-materials were prepared by soft template method, and their catalytic properties were studied in detail. This paper mainly includes the following three parts: 1. Pd hollow nanospheres were successfully prepared by one-step soft template method using Rhodamine B (RB) / Na2PdCl4 RB-PdCl42- complex formed by electrostatic interaction as sacrificial template and NaBH4 as reducing agent at room temperature. It was used for electrocatalytic oxidation of formic acid and methanol. 2. Using RB-PdCl42- complex as sacrificial template and EDOT monomer as reducing agent, PEDOT/Pd composite hollow nanospheres were prepared by one-step method through the redox reaction between the two under the condition of 80 掳C. It was used in the catalytic reaction of peroxidase-like enzyme. 3. A layered (CTA) 2PdBr4 complex formed by electrostatic interaction between cetyltrimethylammonium bromide (CTAB) and Na2PdCl4 was used as a sacrificial template. At 90 掳C, a one-step redox reaction between the template and the polymer monomer was carried out. The conductive polymer / Pd composite nano-ring was successfully prepared and the catalytic performance of polypyrrole (PPy) / Pd composite nano-ring p-nitrophenol reduction was studied in detail.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB383.1
本文编号：2453018
[Abstract]:Nanomaterials have attracted the attention of many researchers because of their excellent performance. Soft template method has been widely used in various methods of preparing nano-materials. This method not only can effectively control the morphology and size of nano-materials, but also can produce nano-materials with special shape because of the kinetic properties of the template itself. PD has a very important application in the field of catalysis. A series of Pd and its composite nano-materials have been prepared and widely used in various catalytic reactions. In this paper, many kinds of high performance Pd and its composite nano-materials were prepared by soft template method, and their catalytic properties were studied in detail. This paper mainly includes the following three parts: 1. Pd hollow nanospheres were successfully prepared by one-step soft template method using Rhodamine B (RB) / Na2PdCl4 RB-PdCl42- complex formed by electrostatic interaction as sacrificial template and NaBH4 as reducing agent at room temperature. It was used for electrocatalytic oxidation of formic acid and methanol. 2. Using RB-PdCl42- complex as sacrificial template and EDOT monomer as reducing agent, PEDOT/Pd composite hollow nanospheres were prepared by one-step method through the redox reaction between the two under the condition of 80 掳C. It was used in the catalytic reaction of peroxidase-like enzyme. 3. A layered (CTA) 2PdBr4 complex formed by electrostatic interaction between cetyltrimethylammonium bromide (CTAB) and Na2PdCl4 was used as a sacrificial template. At 90 掳C, a one-step redox reaction between the template and the polymer monomer was carried out. The conductive polymer / Pd composite nano-ring was successfully prepared and the catalytic performance of polypyrrole (PPy) / Pd composite nano-ring p-nitrophenol reduction was studied in detail.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB383.1
【参考文献】
相关期刊论文 前1条
1 Kai Cheng;Jian Liu;Tao Zhang;Jianmei Li;Zhen Zhao;Yuechang Wei;Guiyuan Jiang;Aijun Duan;;Effect of Ce doping of TiO_2 support on NH_3-SCR activity over V_2O_5 WO_3/CeO_2 TiO_2 catalyst[J];Journal of Environmental Sciences;2014年10期
本文编号：2453018
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