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，我们致力于制造高性能的碳电极材料，用于电化学电容，电化学催化剂和可充电电池。我们合理设计的MOF衍生的碳基材料具有受控的2D/3D形态，掺杂的杂原子和封装的功能性纳米片，从合成化学和实践电化学应用的角度来看，它们非常重要且引起人们的兴趣。使用双相静电纺丝法制造了ZIF结合的杂化聚合物纤维。然后通过多步进退火处理将它们转化为CO3O4-纳米颗粒二光面碳纤维（ZIF -CO3O4/NCF）。将所得的ZIF -CO3O4/NCF交织成自支持的薄膜，可用作在水溶液和非水解电解质中催化氧气减少的双功能催化剂。电化学测试表明，ZIF -CO3O4/NCF表现出高催化活性，可减少氧气，而半波电位（E1/2）为0.813 V（VS.RHE），并且在酒精单线培养基中显示出几乎有利的四电子还原途径。