Functional Carbonaceous Networks as Electrodes in Energy Storage Devices

功能性碳质网络作为储能装置中的电极

• 批准号: 241139491
• 负责人: Professor Dr. Arne Thomas
• 金额: --
• 依托单位: Institut für Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/241139491?language=en
• 关键词: Functional; Carbonaceous; Networks; Electrodes; Energy

The advancement of electrochemical energy storage systems highly depends on the development of novel high performance electrode materials. While a variety of inorganic and organic electroactive materials have been investigated, heteroatom-doped and/or functionalized carbon materials have recently attracted much attention because of their great potential in high performance electrochemical energy storage devices including lithium ion batteries and electrochemical capacitors. Yet, in most cases reported previously, the concentration, distribution, and bonding state of heteroatoms and/or oxygen-containing functional groups in the parent carbon structures (e.g., carbon nanotubes or graphene) are hardly controllable based on the existing synthetic techniques, which significantly limits the evaluation of the influence of heteroatoms doped into carbon materials on their electrochemical performance. Conjugated highly cross-linked porous polymer networks on the other hand enable a highly defined incorporation of functional groups or heteroatoms. However, their usage for electrodes is rather limited as these networks display low conductivities. In this project we will prepare functional carbonaceous networks by rational synthesis and controlled pyrolysis of conjugated polymer networks with specific functionalities, as well as construct their composites with other electrically conductive materials such as carbon nanotubes, graphene, and nanoscale metallic current collectors. These novel materials and composites will be exploited as electrodes in energy storage devices, with emphasis on the understanding of the structure-property relationship of these carbon-based electrodes. Combined with a comprehensive investigation of the effect of chemical functionalities, structure, and interfaces of functional carbonaceous networks and their composites on their electrochemical performance, the project will provide a new class of high performance asymmetric electrochemical cells using optimized functional carbonaceous network-based electrodes.

电化学储能系统的发展在很大程度上依赖于新型高性能电极材料的开发。在研究各种无机和有机电活性材料的同时，杂原子掺杂和/或功能化碳材料因其在锂离子电池和电化学电容器等高性能电化学储能装置中的巨大潜力而引起了人们的极大关注。然而，在以前报道的大多数情况下，基于现有的合成技术，母碳结构(如碳纳米管或石墨烯)中杂原子和/或含氧官能团的浓度、分布和成键状态很难控制，这大大限制了对掺杂到碳材料中的杂原子对其电化学性能影响的评价。另一方面，共轭的高度交联的多孔性聚合物网络使官能团或杂原子的高度限定的结合成为可能。然而，它们作为电极的使用相当有限，因为这些网络表现出低电导率。在本项目中，我们将通过合理合成和控制裂解具有特定功能的共轭聚合物网络来制备功能碳网络，并将其与其他导电材料如碳纳米管、石墨烯和纳米金属集电器构建复合材料。这些新型材料和复合材料将被用作储能装置的电极，重点是了解这些碳基电极的结构-性能关系。结合功能碳网络及其复合材料的化学功能、结构和界面对其电化学性能影响的综合研究，该项目将利用优化的功能碳网络电极提供一类新的高性能不对称电化学电池。

项目成果

Salt-templated porous carbon–carbon composite electrodes for application in vanadium redox flow batteries

• DOI: 10.1039/c7ta07759a
• 发表时间: 2017-12
• 期刊: Journal of Materials Chemistry
• 作者: Maike Schnucklake;Sophie Kuecken;A. Fetyan;Johannes Schmidt;Arne Thomas;C. Roth

Conversion of amorphous polymer networks to covalent organic frameworks under ionothermal conditions: a facile synthesis route for covalent triazine frameworks

• DOI: 10.1039/c5ta07408h
• 发表时间: 2015-01-01
• 期刊: JOURNAL OF MATERIALS CHEMISTRY A
• 影响因子: 11.9
• 作者: Kuecken, Sophie;Schmidt, Johannes;Thomas, Arne
• 通讯作者: Thomas, Arne

Conjugated Microporous Polycarbazole Networks as Precursors for Nitrogen-Enriched Microporous Carbons for CO2 Storage and Electrochemical Capacitors

共轭微孔聚咔唑网络作为用于二氧化碳储存和电化学电容器的富氮微孔碳的前体

• DOI: 10.1021/acs.chemmater.7b00857
• 发表时间: 2017-06-13
• 期刊: CHEMISTRY OF MATERIALS
• 影响因子: 8.6
• 作者: Wang, Haige;Cheng, Zhonghua;Faul, Charl F. J.
• 通讯作者: Faul, Charl F. J.