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Ag–Ni Nanoparticle Anchored Reduced Graphene Oxide Nanocomposite as Advanced Electrode Material for Supercapacitor Application
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2019-07-10 , DOI: 10.1021/acsaelm.9b00194 Madhurya Chandel 1 , Priyanka Makkar 1 , Narendra Nath Ghosh 1
ACS Applied Electronic Materials ( IF 4.3 ) Pub Date : 2019-07-10 , DOI: 10.1021/acsaelm.9b00194 Madhurya Chandel 1 , Priyanka Makkar 1 , Narendra Nath Ghosh 1
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We have reported the electrochemical properties of the nanocomposites that were synthesized by immobilizing nanoparticles of Ag and Ni on the surface of reduced graphene oxide (RGO). The hierarchical structure derived from the combination of nanoparticles of Ni, Ag, and RGO in the (AgxNi(1–x))yRGO(100–y) nanocomposite provides a synergistic effect in the enhancement of supercapacitive performance of the synthesized nanocomposite. (Ag0.50Ni0.50)90RGO10 showed a high specific capacitance value of 897 F g–1 at a current density 1 A g–1 and an energy density of 80 Wh kg–1 at 400 W kg–1 power density. This nanocomposite also exhibited ∼77% retention of the initial capacitance even after 4000 cycles. To the best of our knowledge, the electrochemical properties of the nanocomposite composed of Ni and Ag nanoparticles and RGO are reported for the first time, and the nanocomposite (Ag0.50Ni0.50)90RGO10 demonstrated its excellent supercapacitive performance.
中文翻译：
Ag-Ni纳米颗粒锚固的还原型氧化石墨烯纳米复合材料，作为超级电容器应用中的先进电极材料
我们已经报道了通过将银和镍的纳米颗粒固定在还原的氧化石墨烯（RGO）的表面上而合成的纳米复合材料的电化学性能。由（Ag x Ni （1- x））y RGO （100- y）纳米复合材料中的Ni，Ag和RGO纳米颗粒的组合得出的分层结构在增强合成纳米复合材料的超电容性能方面起到了协同作用。（Ag 0.50 Ni 0.50）90 RGO 10在电流密度1 A g –1时显示出897 F g –1的高比电容值在400 W kg –1功率密度下的能量密度为80 Wh kg –1。即使在4000次循环后，这种纳米复合材料也表现出约77％的初始电容保留率。据我们所知，首次报道了由Ni和Ag纳米颗粒和RGO组成的纳米复合材料的电化学性能，并且纳米复合材料（Ag 0.50 Ni 0.50）90 RGO 10表现出优异的超电容性能。
更新日期：2019-07-11
中文翻译：
Ag-Ni纳米颗粒锚固的还原型氧化石墨烯纳米复合材料，作为超级电容器应用中的先进电极材料
我们已经报道了通过将银和镍的纳米颗粒固定在还原的氧化石墨烯（RGO）的表面上而合成的纳米复合材料的电化学性能。由（Ag x Ni （1- x））y RGO （100- y）纳米复合材料中的Ni，Ag和RGO纳米颗粒的组合得出的分层结构在增强合成纳米复合材料的超电容性能方面起到了协同作用。（Ag 0.50 Ni 0.50）90 RGO 10在电流密度1 A g –1时显示出897 F g –1的高比电容值在400 W kg –1功率密度下的能量密度为80 Wh kg –1。即使在4000次循环后，这种纳米复合材料也表现出约77％的初始电容保留率。据我们所知，首次报道了由Ni和Ag纳米颗粒和RGO组成的纳米复合材料的电化学性能，并且纳米复合材料（Ag 0.50 Ni 0.50）90 RGO 10表现出优异的超电容性能。
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