A universal strategy for metal oxide anchored and binder-free carbon matrix electrode: A supercapacitor case with superior rate performance and high mass loading
By Xuan Zhang, Jiangshui Luo, Pengyi Tang, Xiaoliang Ye, Xin-Xing Peng, Haolin Tang, Shigang Sun, J. Fransaer. 2017
169 citations recorded by the source corpus.
Abstract Despite the significant advances in preparing carbon-metal oxide composite electrodes, strategies for seamless interconnecting of these two materials without using binders are still scarce. Herein we design a novel method for in situ synthesis of porous 2D-layered carbon–metal oxide composite electrode. Firstly, 2D-layered Ni-Co mixed metal-organic frameworks (MOFs) are deposited directly on nickel foam by anodic electrodeposition. Subsequent pyrolysis and activation procedure lead to the formation of carbon–metal oxides composite electrodes. Even with an ultrahigh mass loading of 13.4 mg cm −2 , the as-prepared electrodes exhibit a superior rate performance of 93% (from 1 to 20 mA cm −2 ), high capacitance (2098 mF cm −2 at a current density of 1 mA cm −2 ), low resistance and excellent cycling stability, making them promising candidates for practical supercapacitor application. As a proof of concept, several MOF derived electrodes with different metal sources have also been prepared successfully via the same route, demonstrating the versatility of the proposed method for the preparation of binder-free carbon–metal oxide composite electrodes for electrochemical devices.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/109367590f144c6921b90fa54659ef893032d055
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In Electrical and Electronic Engineering
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Phosphorous-containing oxygen-deficient cobalt molybdate as an advanced electrode material for supercapacitors (2019, background): “The Rs includes the intrinsic resistance of active materials, ionic resistance of electrolyte, and contact resistance at the active material/current collector interface [58].”