Low-Temperature Activation of MOF-74 Composite-Derived Materials for Supercapacitors

IF 2.2 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Yichun Su, Lingling Chen, Yihao Chen, Wenhao Feng, Yiluo Tian, Huan Pang
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引用次数: 0

Abstract

Graphene-like materials are currently showing great potential in different fields, especially in energy storage. We synthesized N-GLC/MOF-74 composites by combining nitrogen-doped graphene-like carbon (N-GLC) with MOF-74. Three porous N-GLC/metal oxide complexes (A-1, A-2, and A-3) were successfully synthesized by calcining the synthesized composites at different temperatures (300°C, 400°C, and 500°C) under air atmosphere. The conversion of the MOF into metal oxides under high-temperature conditions and the oxidation of N-GLC into porous structures was revealed by characterization. The coulombic efficiency of A-1 reached 97.7% after 3500 long cycles at 5 A g−1, indicating an improvement in the stability of the material. The results of this work support the potential use of graphene-like derivatives in energy storage applications.

Graphical Abstract

Abstract Image

用于超级电容器的 MOF-74 复合衍生材料的低温活化
目前,类石墨烯材料在不同领域,尤其是储能领域显示出巨大的潜力。我们将氮掺杂的类石墨烯碳(N-GLC)与 MOF-74 结合,合成了 N-GLC/MOF-74 复合材料。通过在不同温度(300°C、400°C 和 500°C)的空气环境下煅烧合成的复合材料,成功合成了三种多孔 N-GLC/金属氧化物复合物(A-1、A-2 和 A-3)。通过表征发现,在高温条件下,MOF 转化为金属氧化物,N-GLC 被氧化成多孔结构。在 5 A g-1 的条件下,经过 3500 次长时间循环后,A-1 的库仑效率达到了 97.7%,这表明该材料的稳定性有所提高。这项工作的结果支持了类石墨烯衍生物在储能应用中的潜在用途。
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来源期刊
Journal of Electronic Materials
Journal of Electronic Materials 工程技术-材料科学:综合
CiteScore
4.10
自引率
4.80%
发文量
693
审稿时长
3.8 months
期刊介绍: The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.
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