The Experts below are selected from a list of 30840 Experts worldwide ranked by ideXlab platform
Jinghai Liu - One of the best experts on this subject based on the ideXlab platform.
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Incorporating Ni-MOF structure with polypyrrole: enhanced capacitive Behavior as Electrode material for supercapacitor
RSC Advances, 2020Co-Authors: Baoling Wang, Zhelin Liu, Yujie Duan, Bo Zhao, Yin Wang, Jinghai LiuAbstract:Herein, Ni-MOF sheet incorporated with polypyrrole is fabricated via a simple wet-chemical approach, and the obtained PPy-MOF composite is investigated as an Electrode material for supercapacitors. The composite is systematically investigated by a series of characterization studies including X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Besides that, the electrochemical capacitive Behaviors of the products are examined by electrochemical measurements. Electrochemical results show varying the ingredient ratio can lead to different electrocapacitive Behavior, and PPy-MOF-0.2 is proved to possess the best performance in the investigated recipes. Furthermore, an asymmetric supercapacitor employing PPy-MOF and activated carbon as positive and negative Electrodes is also assembled, which exhibits high energy density.
Baoling Wang - One of the best experts on this subject based on the ideXlab platform.
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Incorporating Ni-MOF structure with polypyrrole: enhanced capacitive Behavior as Electrode material for supercapacitor
RSC Advances, 2020Co-Authors: Baoling Wang, Zhelin Liu, Yujie Duan, Bo Zhao, Yin Wang, Jinghai LiuAbstract:Herein, Ni-MOF sheet incorporated with polypyrrole is fabricated via a simple wet-chemical approach, and the obtained PPy-MOF composite is investigated as an Electrode material for supercapacitors. The composite is systematically investigated by a series of characterization studies including X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Besides that, the electrochemical capacitive Behaviors of the products are examined by electrochemical measurements. Electrochemical results show varying the ingredient ratio can lead to different electrocapacitive Behavior, and PPy-MOF-0.2 is proved to possess the best performance in the investigated recipes. Furthermore, an asymmetric supercapacitor employing PPy-MOF and activated carbon as positive and negative Electrodes is also assembled, which exhibits high energy density.
Frédéric Favier - One of the best experts on this subject based on the ideXlab platform.
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Investigation of Ba 0.5 Sr 0.5 Co x Fe 1-x O 3-δ as a pseudocapacitive Electrode material with high volumetric capacitance
Electrochimica Acta, 2018Co-Authors: Pierre Lannelongue, Steven Le Vot, Olivier Fontaine, Moulay-tahar Sougrati, Olivier Crosnier, Thierry Brousse, Frédéric FavierAbstract:Ba0.5Sr0.5CoxFe1-xO3-d phases, with 0.75 < x < 0.90, so-called BSCFs, were investigated as pseudocapacitive Electrode materials. These polycationic oxide phases were prepared by a modified glycine-nitrate process and show the same perovskite structural arrangement and similar morphological characteristics in the whole series. The electrochemical performance was evaluated in aqueous electrolytes at room temperature. BSCF powders showed promising pseudocapacitive Behavior as Electrode materials with high volumetric capacitances which depend on the Co/Fe ratio. A volumetric capacitance of 500 F cm-3 , i.e. five times higher than that of a standard activated carbon Electrode, was measured in 5.0 M LiNO3 for the Electrode based on Ba0.5Sr0.5Co0.8Fe0.2O3-d material composition (x = 0.80). The Electrode also exhibited moderate self-discharge and 90% of capacitance retention over 2000 cycles. The charge storage mechanism seems to be dependent upon the nature of the ions in the electrolyte and on the Co/Fe ratio.
Zhelin Liu - One of the best experts on this subject based on the ideXlab platform.
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Incorporating Ni-MOF structure with polypyrrole: enhanced capacitive Behavior as Electrode material for supercapacitor
RSC Advances, 2020Co-Authors: Baoling Wang, Zhelin Liu, Yujie Duan, Bo Zhao, Yin Wang, Jinghai LiuAbstract:Herein, Ni-MOF sheet incorporated with polypyrrole is fabricated via a simple wet-chemical approach, and the obtained PPy-MOF composite is investigated as an Electrode material for supercapacitors. The composite is systematically investigated by a series of characterization studies including X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Besides that, the electrochemical capacitive Behaviors of the products are examined by electrochemical measurements. Electrochemical results show varying the ingredient ratio can lead to different electrocapacitive Behavior, and PPy-MOF-0.2 is proved to possess the best performance in the investigated recipes. Furthermore, an asymmetric supercapacitor employing PPy-MOF and activated carbon as positive and negative Electrodes is also assembled, which exhibits high energy density.
Yujie Duan - One of the best experts on this subject based on the ideXlab platform.
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Incorporating Ni-MOF structure with polypyrrole: enhanced capacitive Behavior as Electrode material for supercapacitor
RSC Advances, 2020Co-Authors: Baoling Wang, Zhelin Liu, Yujie Duan, Bo Zhao, Yin Wang, Jinghai LiuAbstract:Herein, Ni-MOF sheet incorporated with polypyrrole is fabricated via a simple wet-chemical approach, and the obtained PPy-MOF composite is investigated as an Electrode material for supercapacitors. The composite is systematically investigated by a series of characterization studies including X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy. Besides that, the electrochemical capacitive Behaviors of the products are examined by electrochemical measurements. Electrochemical results show varying the ingredient ratio can lead to different electrocapacitive Behavior, and PPy-MOF-0.2 is proved to possess the best performance in the investigated recipes. Furthermore, an asymmetric supercapacitor employing PPy-MOF and activated carbon as positive and negative Electrodes is also assembled, which exhibits high energy density.