scholarly journals On-chip energy storage integrated with solar cells using a laser scribed graphene oxide film

2015 ◽  
Vol 107 (3) ◽  
pp. 031105 ◽  
Author(s):  
Litty V. Thekkekara ◽  
Baohua Jia ◽  
Yinan Zhang ◽  
Ling Qiu ◽  
Dan Li ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Energy Storage ◽  
Oxide Film ◽  
On Chip

Synthesis and Electrochemical Properties of NiFe-Se/rGO Nanocomposites

2020 ◽  
Vol 13 ◽  
Author(s):  
Rouwei Yan ◽  
Biao Xu ◽  
K. P. Annamalai ◽  
Tianlu Chen ◽  
Zhiming Nie ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Graphene Oxide ◽  
Energy Storage ◽  
Synergistic Effects ◽  
Nitrogen Adsorption ◽  
Storage Device ◽  
Energy Storage And Conversion ◽  
Step Method ◽  
Practical Applications ◽  
Device Applications

Background : Renewable energies are in great demand because of the shortage of traditional fossil energy and the associated environmental problems. Ni and Se-based materials are recently studied for energy storage and conversion owing to their reasonable conductivities and enriched redox activities as well as abundance. However, their electrochemical performance is still unsatisfactory for practical applications. Objective: To enhance the capacitance storage of Ni-Se materials via modification of their physiochemical properties with Fe. Methods: A two-step method was carried out to prepare FeNi-Se loaded reduced graphene oxide (FeNi-Se/rGO). In the first step, metal salts and graphene oxide (GO) were mixed under basic condition and autoclaved to obtain hydroxide intermediates. As a second step, selenization process was carried out to acquire FeNi-Se/rGO composites. Results: X-ray diffraction measurements (XRD), nitrogen adsorption at 77K, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were carried out to study the structures, porosities and the morphologies of the composites. Electrochemical measurements revealed that FeNi-Se/rGO notably enhanced capacitance than the NiSe/G composite. This enhanced performance was mainly attributed to the positive synergistic effects of Fe and Ni in the composites, which not only had influence on the conductivity of the composite but also enhanced redox reactions at different current densities. Conclusion: NiFe-Se/rGO nanocomposites were synthesized in a facile way. The samples were characterized physicochemically and electrochemically. NiFeSe/rGO giving much higher capacitance storage than the NiSe/rGO explained that the nanocomposites could be an electrode material for energy storage device applications.

Reduced graphene oxide/polyaniline wrapped carbonized sponge with elasticity for energy storage and pressure sensing

2021 ◽  
Author(s):  
Shichao Huang ◽  
Jialun Li ◽  
Xueyu Zhang ◽  
Xijia Yang ◽  
Liying Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Reduced Graphene Oxide ◽  
Pressure Sensing ◽  
Reduced Graphene

Reduced graphene oxide/polyaniline wrapped carbonized sponge with elasticity for energy storage and pressure sensing.

scholarly journals Facile fabrication of graphene-based high-performance microsupercapacitors operating at high temperature of 150 oC

2021 ◽  
Author(s):  
Viktoriia Mishukova ◽  
Nicolas Boulanger ◽  
Artem Iakunkov ◽  
Szymon Sollami Delekta ◽  
Xiaodong Zhuang ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
High Performance ◽  
Electronic Circuits ◽  
Industry Applications ◽  
Facile Fabrication ◽  
On Chip

Many industry applications require electronic circuits and systems to operate at high temperature over 150 oC. Although planar microsupercapacitors (MSCs) have great potential for miniaturized on-chip integrated energy storage components,...

Ternary Nanocomposites of Reduced Graphene Oxide, Polyaniline, and Iron Oxide Applied for Energy Storage

2021 ◽  
Author(s):  
Vitor H. N. Martins ◽  
Nicolás M. S. Siqueira ◽  
Jéssica E. S. Fonsaca ◽  
Sergio H. Domingues ◽  
Victor H. R. Souza
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Iron Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene
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