Design and Development of Novel Nanocatalysts;A Key Tool Tow
发布时间：2021-08-12 03:14
本论文由三部分组成,在第一部分中,我们合成负载Pd纳米颗粒的氢氧化钆Gd（OH）3纳米棒上,并将该催化剂应用于加氢反应。我们先通过水热反应制备了 Gd（OH）3纳米棒,然后通过光化学沉积方法获得含有0.95wt%Pd的复合催化剂Pd/Gd（OH）3。Gd（OH）3具有大量羟基,是Pd纳米颗粒的理想载体。我们使用该催化剂对硝基苯酚（4-NP）,对氨基苯酚（4-AP）和苯乙烯进行催化加氢实验。结果表明,本实验制备的Pd/Gd（OH）3催化剂与其它非均相催化剂相比,具有非常更为出色的催化活性。我们通过实验结果计算出4-NP的还原速率为0.047s-1,在连续10个循环实验后,该催化剂仍然表现出很高的活性。此外,我们利用Pd/Gd（OH）3纳米棒对苯乙烯进行加氢实验,生成乙苯的转换效率（TOF）高达6159h-1,选择性为100%,并且进行5个连续循环并没有发现明显的失活现象。实验结果表明,金属与载体相互作用,以及Pd纳米颗粒在Gd（OH）3表面上的高度分散两种因素的协同作用增强了催化剂的催化活性。我们合成的Pd/Gd（OH）3在多相催化中为探索其他金属氢氧化物或氧化物作为高效有机反应催化剂提...
【文章来源】：中国科学技术大学安徽省 211工程院校 985工程院校
【文章页数】：106 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Introduction
1.2 Literature review
1.3 Objectives
1.4 Thesis Outline
1.5 References
Chapter 2 Highly Dispersed Ultra-Small Pd Nanoparticles on Gadolinium Hydroxide Nanorodsfor Efficient Hydrogenation Reactions
2.1 Introduction
2.2 Experimental Details
2.2.1 Chemicals
2.2.2 Synthesis of Gd(OH)_3 Nanorods
2.2.3 Synthesis of ultra-small Pd nanoparticles supported on Gd(OH)3 nanorods
2.2.4 Characterization
2.2.5 Catalytic Reduction of 4-Nitrophenol
2.2.6 Hydrogenation of styrene
2.3 Results and discussion
2.4 Summary
2.5 References
Chapter 3 Metal-acid nanoplates-supported ultrafine Ru nanoclusters for efficient catalyticfractionation of lignin into aromatic alcohols
3.1 Introduction
3.2 Experimental Details
3.2.1 Chemicals and Materials
3.2.2 Preparation of α-HfP nanoplates
3.2.3 Fabrication of Ru/α-HfP nanocomposite
3.2.4 Characterization
3.2.5 Catalytic reductive fractionation of lignocellulose
3.3 Results and Discussion
3.4 Summary
3.5 References
Chapter 4. Facile one-pot incorporation of Co~Ⅱ based 2D MOF and its efficiency for CO_2 captureand conversion to cyclic carbonates under solvent-free conditions
4.1 Introduction
4.2 Experimental Details
4.2.1 Chemicals
4.2.2 Preparation of Co-MOF nanosheets
4.2.3 Characterization
4.2.4 Catalytic cycloaddition of CO_2 with epoxides
4.3 Results and discussion
4.4 Summary
4.5 References
Acknowledgements
List of Publications
本文编号：3337467
【文章来源】：中国科学技术大学安徽省 211工程院校 985工程院校
【文章页数】：106 页
【学位级别】：博士
【文章目录】：
摘要
Abstract
Chapter 1 Introduction
1.1 Introduction
1.2 Literature review
1.3 Objectives
1.4 Thesis Outline
1.5 References
Chapter 2 Highly Dispersed Ultra-Small Pd Nanoparticles on Gadolinium Hydroxide Nanorodsfor Efficient Hydrogenation Reactions
2.1 Introduction
2.2 Experimental Details
2.2.1 Chemicals
2.2.2 Synthesis of Gd(OH)_3 Nanorods
2.2.3 Synthesis of ultra-small Pd nanoparticles supported on Gd(OH)3 nanorods
2.2.4 Characterization
2.2.5 Catalytic Reduction of 4-Nitrophenol
2.2.6 Hydrogenation of styrene
2.3 Results and discussion
2.4 Summary
2.5 References
Chapter 3 Metal-acid nanoplates-supported ultrafine Ru nanoclusters for efficient catalyticfractionation of lignin into aromatic alcohols
3.1 Introduction
3.2 Experimental Details
3.2.1 Chemicals and Materials
3.2.2 Preparation of α-HfP nanoplates
3.2.3 Fabrication of Ru/α-HfP nanocomposite
3.2.4 Characterization
3.2.5 Catalytic reductive fractionation of lignocellulose
3.3 Results and Discussion
3.4 Summary
3.5 References
Chapter 4. Facile one-pot incorporation of Co~Ⅱ based 2D MOF and its efficiency for CO_2 captureand conversion to cyclic carbonates under solvent-free conditions
4.1 Introduction
4.2 Experimental Details
4.2.1 Chemicals
4.2.2 Preparation of Co-MOF nanosheets
4.2.3 Characterization
4.2.4 Catalytic cycloaddition of CO_2 with epoxides
4.3 Results and discussion
4.4 Summary
4.5 References
Acknowledgements
List of Publications
本文编号：3337467
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