Au-Ag双金属纳米簇的合成及其催化应用

摘要本论文简要分析Au-Ag双金属纳米材料的制备合成方法的基本原理及特点，并选择运用置换法，用聚乙烯吡咯烷酮(PVP)做表面活性剂，合成了枝状的Au-Ag双金属纳米材料，对Au-Ag双金属纳米材料的合成影响因素温度和氯金酸的用量进行了研究，用UV-Vis、XRD、SEM等表征手段对产品进行表征分析，最终将合成的Au-Ag双金属纳米材料作为催化剂用于环氧丙烷异构化，探究Au-Ag双金属纳米材料作为催化剂在环氧丙烷异构化这个领域的选择性，并对Au-Ag双金属纳米材料催化性能的影响因素进行了分析讨论。42539

关键词 Au-Ag双金属纳米材料催化性能置换法环氧丙烷

毕业论文设计说明书外文摘要

Title Synthesis and catalytic application of Au-Ag bimetallic nanoparticles

Abstract

A brief analysis of the basic principles and characteristics of the synthetic methods for preparing Au-Ag bimetallic nanomaterials is gived by this thesis, and replacement method was used to synthesize dendritic nano-Au-Ag bimetallic materials, by using polyvinylpy -rrolidone (PVP) as a surfactant. Effect of synthesis factors of Au-Ag bimetallic nanomaterials, such as temperature and the amount of chlorine acid, was studied in this thesis. And some Characterization methods, such us UV-Vis, XRD, SEM, was used to analysis the synthetic products. And then the synthetic products were used as catalysts for the isomerization of propylene oxide. The selectivity of Au-Ag bimetallic nanomaterials as catalysts in the field of propylene oxide isomerization was explored, and the influence factors on the catalytic performance of Au-Ag bimetallic nanomaterials were discussed.

Keywords Au-Ag bimetallic nano materials Catalytic performance Replacement method Propylene oxide

1 引言 1

1.1 国内外研究背景 1

1.2 Au-Ag双金属纳米材料的制备、表征和应用 1

1.2.1 Au-Ag双金属纳米材料的制备方法 1

1.2.2 Au-Ag双金属纳米材料的表征方法 4

1.2.3 Au-Ag双金属纳米材料性能方面的研究 4

1.3 本论文的研究目的及设想 5

2 Au-Ag双金属合金的制备 6

2.1 实验部分 6

2.1.1 实验药品 6

2.1.2实验仪器 6

2.1.3实验方法 6

2.1.4产物的表征 7

2.2结果与讨论 8

2.2.1枝状Ag纳米颗粒的合成 8

2.2.2 Au-Ag双金属纳米合金的合成 9

2.3 小结 18

3 Au-Ag双金属纳米合金的催化性能研究 20

3.1 实验部分 20

3.1.1实验药品 20

3.1.2实验仪器 20

3.1.3实验方法 20

3.2 Au-Ag双金属材料的催化性能研究的结果与分析 Au-Ag双金属纳米簇的合成及其催化应用:http://www.751com.cn/huaxue/lunwen_43034.html