A core–shell MnO₂@Au nanofiber network as a high-performance flexible transparent supercapacitor electrode

Abstract

A highly transparent core–shell MnO2@AuNF network electrode is fabricated for a flexible portable energy storage device

Ultra-High Energy Density Hybrid Supercapacitors Using MnO2/Reduced Graphene Oxide Hybrid Nanoscrolls

“…The calculated ESR of the GMS/AC cell was 4 Ω. It is worth mentioning that the ESR of 4 Ω of our GMS cell is lower than that of other reported values for rGO-based electrodes such as the MnO 2 –Au nanofiber-based supercapacitor electrode (22.52 Ω) [ 34 ], the carbon nanotube–MnO 2 electrode-based supercapacitor (21.8 Ω) [ 20 ], the carbon fiber–MnO 2 electrode-based supercapacitor (35.58 Ω) [ 19 ], and the Na-doped MnO 2 nanosheets-carbon nanotube fiber electrode-based supercapacitor (8.7 Ω) [ 35 ]. The charge–transfer resistance (R ct ) resulting from the diffusion of electrons towards the electrode materials can be estimated from the semicircle diameter.…”

Two-dimensional β-MoO3@C nanosheets as high-performance negative materials for supercapacitors with excellent cycling stability

“…18 Thus, in order to replace RuO 2 , various materials such as MoO 3 , NiO, Ni(OH), MnO 2 , FeOOH, Fe 3 O 4 and NiCo 2 O 4 have been widely explored for supercapacitors. [19][20][21][22] Among them, molybdenum trioxides (MoO 3 ) as typical layered transition metal oxides (TMO), have attracted numerous interests for supercapacitors due to their high electrochemical activity, high stability, low cost and nontoxicity. At present, MoO 3 possesses three polymorphs: the thermodynamically stable orthorhombic a-MoO 3 , 23,24 metastable monoclinic b-MoO 3 , 25,26 and hexagonal h-MoO 3 , 27,28 respectively.…”

PEDOT:PSS-glued MoO3nanowire network for all-solid-state flexible transparent supercapacitors

“…4f-g. The maximum areal capacitance is 15.7 mF cm −2 at 0.02 mA cm −2 , which is much higher than the previously reported FTSC electrodes, View Article Online such as graphene, 13 PEDOT:PSS/metal mesh, 61 Co(OH) 2 /AgNWs, 2 MnO 2 /metal mesh, 30 and MXenes 24 at similar optical transparency. Electrochemical impedance spectroscopy (EIS) was carried out to explore the ion diffusion/transport capability and electrical conductivity of AMP electrodes.…”