新しい炭素前駆体：２Ｄナノ材料を用いた２Ｄ／３Ｄ　ＭＯＦｓの合成

新型碳前驱体：使用 2D 纳米材料合成 2D/3D MOF

• 批准号: 17F17080
• 负责人: 井出 裕介
• 金额: $ 1.47万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2017
• 资助国家: 日本
• 起止时间: 2017-04-26 至 2019-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17F17080/
• 关键词: 金属有機構造体; 炭素材料; 多孔体

In this project, we have devoted to fabricating high-performance carbon-based electrode materials for electrochemical capacitance, electrochemical catalysis, and rechargeable batteries. We rationally designed MOF-derived carbon-based materials with controlled 2D/3D morphologies, doped heteroatoms, and encapsulated functional nanosheets, which were quite important and of great interest from the viewpoint of synthetic chemistry and practical electrochemical applications. ZIF-incorporated hybrid polymeric fibres were fabricated by using a dual‐phase electrospinning method. These were then transformed into Co3O4‐nanoparticle‐decorated porous N‐doped carbon fibres (ZIF‐Co3O4/NCF) through multi‐step annealing treatment. The resultant ZIF‐Co3O4/NCF was interweaved into a self‐supported film and could be used as a bi‐functional catalyst for catalysing oxygen reduction in both aqueous and non‐aqueous electrolytes. Electrochemical tests demonstrate that ZIF‐Co3O4/NCF displayed a high catalytic activity for oxygen reduction with a half‐wave potential (E1/2) of 0.813 V (vs. RHE) and an almost favourable four‐electron reduction pathway in alkaline medium.

在这个项目中，我们致力于制备用于电化学电容、电化学催化和可充电电池的高性能碳基电极材料，我们合理设计了具有受控2D/3D形貌、掺杂杂原子和封装的MOF衍生碳基材料。从合成化学和实际电化学应用的角度来看，功能性纳米片非常重要且引起人们极大的兴趣。然后通过多步退火处理将其转化为 Co3O4 纳米粒子修饰的多孔 N 掺杂碳纤维（ZIF-Co3O4/NCF），所得 ZIF-Co3O4/NCF 交织成自支撑结构。电化学测试表明，它可以用作催化水性和非水性电解质中氧还原的双功能催化剂。 ZIF-Co3O4/NCF 对氧还原表现出较高的催化活性，半波电位 (E1/2) 为 0.813 V（相对于 RHE），并且在碱性介质中具有几乎有利的四电子还原途径。