基于三维石墨烯的镍钴电催化剂制备及其析氢与析氧性能
发布时间：2021-07-20 08:44
能源危机和环境污染已经成为威胁人类社会以及地球生命的两大关键性问题。氢能作为一种清洁能源,因其高效、洁净、环保,已被广泛认为是一种理想的可替代化石燃料的新能源。电催化分解水制氢被公认为是获得氢能的主要能源转化方式之一,但目前使用的稀有元素Pt和IrO2或RuO2等电催化剂因价格昂贵很难实现工业化应用。因此,科学家研究了其他过渡金属及其衍生物,以取代贵金属,实现水的电催化实际应用,解决环境和能源危机,并且大多数此类材料表现出色。在过渡金属中,Ni和Co的HER和OER性能已被深入研究并显示出更好的结果。除了良好的性能外,这些金属丰富,价格低廉,对环境的影响很小或几乎没有。大尺寸的Ni和Co导致高的固有电阻,低有效表面积可能影响性能。本论文研究工作中,我们开发了廉价而简单的方法来制备了微米和纳米尺寸的Ni和Co粒子负载在3D石墨烯上。3D石墨烯不仅为Ni和Co及其衍生物的负载提供了大的表面积,而且由于它们的导电薄片而易于电子的传输,这可以提高电催化性能结果。微米和纳米尺寸分散的Ni和Co的分散增加了反应的活性位点并降低了固有电阻。所制备的Ni和C...
【文章来源】：江苏大学江苏省
【文章页数】：159 页
【学位级别】：博士
【文章目录】：
摘要
abstract
Chapter 1 Introduction
1.1 Hydrogen as energy
1.1.1 Steam reforming
1.1.2 Hydrocarbon partial oxidation
1.1.3 Gasification
1.1.4 Electrocatalysis of water
1.2 Catalyst for water splitting
1.2.1 Platinum as catalyst for hydrogen evolution reaction
1.2.2 Iridium oxide or ruthenium oxide as catalyst for oxygen evolution reaction
1.2.3 Nickel as a catalyst
1.2.4 Cobalt as a catalyst
1.3 Carbon base supporter
1.3.1 Graphene
1.3.2 3D Graphene(3DG)
1.4 Ni and Co based3DG as HER and OER electrocatalyst
1.5 Main research content of this thesis
Chapter 2 Nickel loaded 3D graphene an improved electrocatalyst for hydrogen evolution reaction
2.1 Introduction
2.2 Experiments
2.2.1 Chemical reagents and experimental instruments
2.2.2 Preparation of Ni–based3DG electrocatalyst
2.2.3 Characterizations
2.3 Results and discussions
2.3.1 XRD characterization of Ni loaded3DG electrocatalyst
2.3.2 Raman characterization of Ni loaded3DG electrocatalyst
2.3.3 SEM characterization of Ni loaded3DG electrocatalyst
2.3.4 EDS characterization of Ni loaded3DG electrocatalyst
2.3.5 TEM and HRTEM characterization of Ni loaded3DG electrocatalyst
2.3.6 XPS characterization of Ni loaded3DG electrocatalyst
2.3.7 Electrochemical characterization of Ni loaded3DG electrocatalyst
2.4 Chapter conclusion
Chapter 3 3D graphene decorated with hexagonal micro–coin of Co(OH)_2:A competent electrocatalyst for hydrogen and oxygen evolution reaction
3.1 Introduction
3.2 Experiments
3.2.1 Chemical reagents and experimental instruments
3.2.2 Preparation of Co(OH)_2 decorated3DG electrocatalyst
3.2.3 Characterizations
3.3 Results and discussions
3.3.1 XRD and Raman characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.2 SEM characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.3 TEM and HRTEM characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.4 XPS characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.5 Electrochemical characterization of Co(OH)_2 decorated3DG electrocatalyst
3.4 Chapter conclusion
Chapter 4 Novel 3D graphene ornamented with CoO nanoparitcles as an efficient bifunctional electrocatalyst for oxygen and hydrogen evolution reactions
4.1 Introduction
4.2 Experiments
4.2.1 Chemical reagents and experimental instruments
4.2.2 Preparation of CoO ornamented3DG electrocatalyst
4.2.3 Characterizations
4.3 Results and discussions
4.3.1 XRD characterization of CoO ornamented3DG electrocatalyst
4.3.2 SEM characterization of CoO ornamented3DG electrocatalyst
4.3.3 EDS characterization of CoO ornamented3DG electrocatalyst
4.3.4 TEM characterization of CoO ornamented3DG electrocatalyst
4.3.5 XPS characterization of CoO ornamented3DG electrocatalyst
4.3.6 Raman characterization of CoO ornamented3DG electrocatalyst
4.3.7 Electrochemical characterization of CoO ornamented3DG electrocatalyst
4.4 Chapter conclusion
Chapter 5 In situ growth of M–MO(M=Ni,Co)in3DG as a competent bifunctional electrocatalyst for OER and HER
5.1 Introduction
5.2 Experiments
5.2.1 Chemical reagents and experimental instruments
5.2.2 Preparation of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.2.3 Characterizations
5.3 Results and discussions
5.3.1 XRD characterization of Ni–NiO@3DG and Co–CoO@3DG electrocatalysts
5.3.2 SEM characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.3 EDS characterization of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.3.4 TEM and HRTEM characterization of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.3.5 Raman characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.6 XPS characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.7 BET characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.8 Electrochemical characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.4 Chapter conclusion
Chapter 6 Simultaneous synthesis of bimetallic Ni–NiO/CoO–Co O@3DG a novel electrocatalyst for hydrogen and oxygen evolution reactions
6.1 Introduction
6.2 Experiments
6.2.1 Chemical reagents and experimental instruments
6.2.2 Preparation of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.2.3 Characterizations
6.3 Results and discussions
6.3.1 XRD characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.2 Raman characterization of Ni–NiO/Co–Co O@3DG electrocatalyst
6.3.3 SEM characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.4 TEM characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.5 XPS characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.6 BET characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.7 Electrochemical characterization of Ni–Ni O/Co–CoO@3DG electrocatalyst
6.4 Chapter conclusion
Chapter 7 Conclusions and prospective
7.1 Conclusion
7.2 The main innovation of the paper
7.3 Existing problems and prospects
References
Acknowledgement
List of Publication during the doctoral degree
【参考文献】：
期刊论文
[1]Co-V双金属基纳米片用于有效电催化全解水（英文）[J]. 肖英璐,田春贵,田玫,吴爱平,闫海静,陈聪芳,王蕾,焦艳清,付宏刚. Science China Materials. 2018(01)
[2]铁氰化钴修饰石墨烯平面电极对过氧化氢的传感作用[J]. 赵鸿彩,张璞,李社红,罗红霞. 分析化学. 2017(06)
本文编号：3292508
【文章来源】：江苏大学江苏省
【文章页数】：159 页
【学位级别】：博士
【文章目录】：
摘要
abstract
Chapter 1 Introduction
1.1 Hydrogen as energy
1.1.1 Steam reforming
1.1.2 Hydrocarbon partial oxidation
1.1.3 Gasification
1.1.4 Electrocatalysis of water
1.2 Catalyst for water splitting
1.2.1 Platinum as catalyst for hydrogen evolution reaction
1.2.2 Iridium oxide or ruthenium oxide as catalyst for oxygen evolution reaction
1.2.3 Nickel as a catalyst
1.2.4 Cobalt as a catalyst
1.3 Carbon base supporter
1.3.1 Graphene
1.3.2 3D Graphene(3DG)
1.4 Ni and Co based3DG as HER and OER electrocatalyst
1.5 Main research content of this thesis
Chapter 2 Nickel loaded 3D graphene an improved electrocatalyst for hydrogen evolution reaction
2.1 Introduction
2.2 Experiments
2.2.1 Chemical reagents and experimental instruments
2.2.2 Preparation of Ni–based3DG electrocatalyst
2.2.3 Characterizations
2.3 Results and discussions
2.3.1 XRD characterization of Ni loaded3DG electrocatalyst
2.3.2 Raman characterization of Ni loaded3DG electrocatalyst
2.3.3 SEM characterization of Ni loaded3DG electrocatalyst
2.3.4 EDS characterization of Ni loaded3DG electrocatalyst
2.3.5 TEM and HRTEM characterization of Ni loaded3DG electrocatalyst
2.3.6 XPS characterization of Ni loaded3DG electrocatalyst
2.3.7 Electrochemical characterization of Ni loaded3DG electrocatalyst
2.4 Chapter conclusion
Chapter 3 3D graphene decorated with hexagonal micro–coin of Co(OH)_2:A competent electrocatalyst for hydrogen and oxygen evolution reaction
3.1 Introduction
3.2 Experiments
3.2.1 Chemical reagents and experimental instruments
3.2.2 Preparation of Co(OH)_2 decorated3DG electrocatalyst
3.2.3 Characterizations
3.3 Results and discussions
3.3.1 XRD and Raman characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.2 SEM characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.3 TEM and HRTEM characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.4 XPS characterization of Co(OH)_2 decorated3DG electrocatalyst
3.3.5 Electrochemical characterization of Co(OH)_2 decorated3DG electrocatalyst
3.4 Chapter conclusion
Chapter 4 Novel 3D graphene ornamented with CoO nanoparitcles as an efficient bifunctional electrocatalyst for oxygen and hydrogen evolution reactions
4.1 Introduction
4.2 Experiments
4.2.1 Chemical reagents and experimental instruments
4.2.2 Preparation of CoO ornamented3DG electrocatalyst
4.2.3 Characterizations
4.3 Results and discussions
4.3.1 XRD characterization of CoO ornamented3DG electrocatalyst
4.3.2 SEM characterization of CoO ornamented3DG electrocatalyst
4.3.3 EDS characterization of CoO ornamented3DG electrocatalyst
4.3.4 TEM characterization of CoO ornamented3DG electrocatalyst
4.3.5 XPS characterization of CoO ornamented3DG electrocatalyst
4.3.6 Raman characterization of CoO ornamented3DG electrocatalyst
4.3.7 Electrochemical characterization of CoO ornamented3DG electrocatalyst
4.4 Chapter conclusion
Chapter 5 In situ growth of M–MO(M=Ni,Co)in3DG as a competent bifunctional electrocatalyst for OER and HER
5.1 Introduction
5.2 Experiments
5.2.1 Chemical reagents and experimental instruments
5.2.2 Preparation of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.2.3 Characterizations
5.3 Results and discussions
5.3.1 XRD characterization of Ni–NiO@3DG and Co–CoO@3DG electrocatalysts
5.3.2 SEM characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.3 EDS characterization of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.3.4 TEM and HRTEM characterization of Ni–Ni O@3DG and Co–Co O@3DG electrocatalysts
5.3.5 Raman characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.6 XPS characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.7 BET characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.3.8 Electrochemical characterization of Ni–Ni O@3DG and Co–CoO@3DG electrocatalysts
5.4 Chapter conclusion
Chapter 6 Simultaneous synthesis of bimetallic Ni–NiO/CoO–Co O@3DG a novel electrocatalyst for hydrogen and oxygen evolution reactions
6.1 Introduction
6.2 Experiments
6.2.1 Chemical reagents and experimental instruments
6.2.2 Preparation of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.2.3 Characterizations
6.3 Results and discussions
6.3.1 XRD characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.2 Raman characterization of Ni–NiO/Co–Co O@3DG electrocatalyst
6.3.3 SEM characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.4 TEM characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.5 XPS characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.6 BET characterization of Ni–Ni O/Co–Co O@3DG electrocatalyst
6.3.7 Electrochemical characterization of Ni–Ni O/Co–CoO@3DG electrocatalyst
6.4 Chapter conclusion
Chapter 7 Conclusions and prospective
7.1 Conclusion
7.2 The main innovation of the paper
7.3 Existing problems and prospects
References
Acknowledgement
List of Publication during the doctoral degree
【参考文献】：
期刊论文
[1]Co-V双金属基纳米片用于有效电催化全解水（英文）[J]. 肖英璐,田春贵,田玫,吴爱平,闫海静,陈聪芳,王蕾,焦艳清,付宏刚. Science China Materials. 2018(01)
[2]铁氰化钴修饰石墨烯平面电极对过氧化氢的传感作用[J]. 赵鸿彩,张璞,李社红,罗红霞. 分析化学. 2017(06)
本文编号：3292508
本文链接：https://www.wllwen.com/kejilunwen/huaxuehuagong/3292508.html
