通过cr掺杂提高Co-MOF的电化学性能:表征和超级电容器应用的电化学解释

IF 4.3 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Hafiz Mansoor ul Haque , Asma Hassan , Saira zia , Shuai Wu , Zhichao Li , Li Guo , Yanzhong Wang
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引用次数: 0

摘要

在当前能源短缺的情况下,通过简单、经济的方法开发一种高效、环保的电极材料势在必行。本研究强调了简单的溶剂热技术和理想的元素比在金属有机骨架(MOF)开发中的重要意义,这将大大提高金属有机骨架的电化学性能。由于MOF具有显著的表面积和多孔性等有前途的特性,因此在能源存储领域引起了极大的兴趣。本文采用高效的一步溶剂热法合成了一系列掺cr的Co-MOF。实验结果(XRD, FTIR, XPS)验证了cr掺杂对原始Co-MOF/NF的电子结构有强烈的影响,显著提高了其电化学性能。Cr1Co-MOF/NF电极具有2390 F g−1的超高比电容,而ASC器件(Cr1Co-MOF/NF//AC)在1a g−1下的能量密度为43 Wh kg−1,功率密度为795 W kg−1,在10,000次充放电循环后电容保持率为88%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Improving electrochemical performance of Co-MOF via Cr-doping: Characterization and electrochemical interpretation for supercapacitor applications

Improving electrochemical performance of Co-MOF via Cr-doping: Characterization and electrochemical interpretation for supercapacitor applications
Amid the prevailing energy shortage, it is imperative to develop an efficient and environmentally friendly electrode material through simple and cost-effective methods. This investigation emphasizes the significance of the simple solvothermal technique and an ideal elemental ratio in the development of metal-organic frameworks (MOF), which greatly improves the electrochemical performance. MOF received significant interest in the energy storage sector, due to their promising characteristics such as remarkable surface area and porous properties. In this work, a series of Cr-doped Co-MOF were synthesized using an efficient one-step solvothermal method. The experimental results (XRD, FTIR, and XPS) validated that Cr-doping strongly impacts the electronic structure of pristine Co-MOF/NF, markedly improving the electrochemical performance. The Cr1Co-MOF/NF electrode demonstrates ultra-high specific capacitance of 2390 F g−1, and the ASC device (Cr1Co-MOF/NF//AC) achieves an impressive energy density of 43 Wh kg−1 and a power density of 795 W kg−1 at 1 A g−1, with an 88 % capacitance retention after 10,000 charge-discharge cycles.
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来源期刊
Journal of Physics and Chemistry of Solids
Journal of Physics and Chemistry of Solids 工程技术-化学综合
CiteScore
7.80
自引率
2.50%
发文量
605
审稿时长
40 days
期刊介绍: The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.
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