用于电化学电容器的从家禽羽毛中提取的多孔掺氮碳化物

IF 4.3 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY
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引用次数: 0

摘要

本研究报告介绍了通过球磨和化学活化高温碳化废鸡毛合成掺氮碳材料 (NDCM)的过程。通过一系列物理和电化学表征方法对合成的含氮量为 2.2 至 6.6 wt% 的 NDCM 进行了分析。评估了碳化温度、机械研磨和化学活化对比容和电荷保持的影响。电化学测试表明,优化的 NDCM(在 700 °C 下碳化,然后进行球磨和化学活化)在 1 A g-1 电流密度下的比电容为 195 F g-1。在 40 A g-1 的较高电流密度下,电容保持率为 89%。此外,在电流密度为 5 A g-1 时,这种材料的电容损失率为 1%,电静电充放电循环寿命为 1000 次。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Porous nitrogen-doped carbons derived from poultry feathers for electrochemical capacitors
The synthesis of a nitrogen doped carbon material (NDCM) from the ball-milling and chemical activation of high temperature carbonised waste chicken feathers is reported. Synthesised NDCMs with nitrogen content ranging from 2.2 to 6.6 wt% were analysed via a range of physio and electrochemical characterisation methods. The effects of carbonisation temperature, mechanical milling and chemical activation were evaluated on specific capacitance and charge retention. Electrochemical testing demonstrated that the optimised NDCM (carbonised at 700 °C followed by ball milling and chemical activation) possessed a specific capacitance of 195 F g−1 at 1 A g−1 current density. At the higher current density of 40 A g−1 89 % of the capacitance is retained. Moreover, this material showed a cycle life of 1000 galvanostatic charge/discharge cycles with a 1 % loss in capacitance at a current density of 5 A g−1.
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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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