Selin Gümrükçü, Ekrem Kaplan, Melih Beşir Arvas, Nilüfer Koçyiğit, Mukaddes Özçeşmeci, Yücel Şahin, İbrahim Özçeşmeci
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引用次数: 0
Abstract
Pincer-type ligands are coated on the carbon felt (CF) surface in one step via the electrodeposition method, and their use as supercapacitor electrode materials is reported for the first time in this research study. Raman spectroscopy, X-ray diffraction, scanning electron microscopy-energy dispersive X-ray analysis and mapping, and X-ray photoelectron spectroscopy are used to characterize the bis(pyridyl) iminoisoindoline (BPI) derivates/CF electrodes. The galvanostatic charge–discharge study indicates that the calculated specific capacitance (Cs) of the PdBPI/CF electrode is 271.2 F g−1 at 1.0 mA current. The symmetrical supercapacitor has a high capacitance retention of up to 80.6% after 10 000 cycles, showing extended cycle life and strong electrochemical stability. The highest energy and power density values obtained for the PdBPI/CF symmetric supercapacitor are calculated to be 25.9 Wh kg−1 and 981.8 W kg−1, respectively.
采用电沉积法一步将钳型配体涂覆在碳毡(CF)表面,首次报道了钳型配体作为超级电容器电极材料的应用。采用拉曼光谱、x射线衍射、扫描电子显微镜-能量色散x射线分析与作图、x射线光电子能谱等方法对双(吡啶基)亚氨基异吲哚啉(BPI)衍生物/CF电极进行了表征。恒流充放电研究表明,在1.0 mA电流下,PdBPI/CF电极的计算比电容Cs为271.2 F g−1。该对称型超级电容器在循环10000次后电容保持率高达80.6%,具有较长的循环寿命和较强的电化学稳定性。计算得到PdBPI/CF对称超级电容器的最高能量和功率密度分别为25.9 Wh kg - 1和981.8 W kg - 1。
期刊介绍:
Energy Technology provides a forum for researchers and engineers from all relevant disciplines concerned with the generation, conversion, storage, and distribution of energy.
This new journal shall publish articles covering all technical aspects of energy process engineering from different perspectives, e.g.,
new concepts of energy generation and conversion;
design, operation, control, and optimization of processes for energy generation (e.g., carbon capture) and conversion of energy carriers;
improvement of existing processes;
combination of single components to systems for energy generation;
design of systems for energy storage;
production processes of fuels, e.g., hydrogen, electricity, petroleum, biobased fuels;
concepts and design of devices for energy distribution.