伊米达相关的多元组分合成完全结合的3D共价有机框架,用于高效的电化学氧化生产
Yuting Zhang1, Zelong Qiao1, Rui Zhang1
1State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
Angewandte Chemie (International ed. in English)
|October 26, 2023
概括
研究人员开发了一种新的3D共价有机框架 (BUCT-COF-7) 用于高效的过氧化 (H2O2) 生产. 这种无金属催化剂在废水处理应用中表现有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 催化剂是一种催化剂.
背景情况:
- 三维 (3D) 共价有机框架 (COF) 在半导体应用中面临限制,原因是非结合结构和不稳定的链接.
- 开发强大的并联3DCOF对于推进它们在催化和能量储存中的使用至关重要.
研究的目的:
- 为了合成一个新的,强大的,和完全结合的3D共价有机框架 (BUCT-COF-7).
- 研究BUCT-COF-7作为无金属催化剂的潜力,用于过氧化 (H2O2) 的电化学合成.
- 探索BUCT-COF-7在废水处理中的应用.
主要方法:
- BUCT-COF-7通过单多组分德布斯-拉迪兹泽夫斯基反应的合成.
- 合成材料的结构和半导体性能的表征.
- 用BUCT-COF-7进行氧降解反应 (ORR) 和H2O2生成的电化学评估.
- 将BUCT-COF-7组装成用于H2O2合成的电解器.
- 使用芬顿反应与电化学生成的H2O2.2,降解甲基蓝.
主要成果:
- 成功合成了一个强大的,与伊米达结合的,完全结合的3DCOF (BUCT-COF-7).
- BUCT-COF-7在性介质中表现出极好的两电子ORR活性,对H2O2产生具有83.4%的选择性.
- 使用BUCT-COF-7的电解器设备实现了326.9 mmol g-1 h-1.1的高H2O2生产率.
- 生产的H2O2通过芬顿反应有效降解了甲蓝染料,证明了废水处理潜力.
结论:
- 这项研究报告了第一个内在的3DCOF,用于高效的电化学H2O2合成.
- 完全结合的3DCOF显示出对环境相关应用的重大前景,包括先进的废水处理.
- BUCT-COF-7是可持续生产H2O2的有希望的无金属催化剂.
更多相关视频
10:21Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
8.4K
04:51Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
Published on: June 23, 2023
2.9K
相关概念视频
01:26Thermal and Photochemical Electrocyclic Reactions: Overview
2.3K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.3K
03:00Preparation of Epoxides
7.8K
Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of...
7.8K