A highly flexible and conductive graphene-wrapped carbon nanofiber membrane for high-performance electrocatalytic applications

2016 ◽  
Vol 3 (7) ◽  
pp. 969-976 ◽  
Author(s):  
Yunpeng Huang ◽  
Longsheng Zhang ◽  
Hengyi Lu ◽  
Feili Lai ◽  
Yue-E Miao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Nanofiber Membrane ◽  
Effective Surface ◽  
Assembly Strategy ◽  
Nanofiber Membranes

Graphene-wrapped electrospun carbon nanofiber membranes with greatly improved electrical conductivity have been synthesized through an effective surface-induced assembly strategy.

scholarly journals Plasma-Assisted Three-Dimensional Lightscribe Graphene as High Performance Supercapacitors

2021 ◽  
Author(s):  
Naser Namdar ◽  
Foad Ghasemi ◽  
Zeinab Sanaee
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Energy Storage ◽  
Surface Area ◽  
High Performance ◽  
Sulfur Hexafluoride ◽  
Effective Surface Area ◽  
Effective Surface ◽  
Practical Applications ◽  
Sequential Processes

Abstract Graphene-based supercapacitors demonstrate extraordinary energy storage capacity due to their layered structure, large effective surface area, high electrical conductivity and acceptable chemical stability. Herein, reduced graphene oxide (rGO)-based supercapacitors were introduced in a simple, green, fast and inexpensive method. For this purpose, graphene oxide (GO) was synthesized by the modified Hummers’ method and then easily reduced to desired patterns of rGO using a commercial LightScribe DVD drive. In order to increase the effective surface area, as well as the electrical conductivity of rGO layers, oxygen/sulfur hexafluoride plasma was applied to the rGO followed by laser irradiation. By performing such sequential processes, an rGO-based supercapacitor was introduced with a capacitance of about 10.2 F/cm3, which had high stability for more than 1000 consecutive charge-discharge cycles. The fabrication steps of the electrodes were investigated by different analyses such as SEM, TEM, Raman, surface resistance and XPS measurements. Results show that these rGO-based electrodes fabricated by sequential processes are very interesting for practical applications of energy storage.

Superhydrophilic carbon nanofiber membrane with a hierarchically macro/meso porous structure for high performance solar steam generators

Desalination ◽  
2021 ◽  
Vol 516 ◽  
pp. 115224
Author(s):  
Jun Yan ◽  
Wei Xiao ◽  
Lanfen Chen ◽  
Zefeng Wu ◽  
Jiefeng Gao ◽  
...  
Keyword(s):  
Porous Structure ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Nanofiber Membrane ◽  
Steam Generators

Polyimide-derived carbon nanofiber membranes as anodes for high-performance flexible lithium ion batteries

2018 ◽  
Vol 29 (11) ◽  
pp. 1692-1697 ◽  
Author(s):  
Fangyuan Zhao ◽  
Xin Zhao ◽  
Bo Peng ◽  
Feng Gan ◽  
Mengyao Yao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Lithium Ion ◽  
Nanofiber Membranes

scholarly journals Carbon Nano-Fiber/PDMS Composite Used as Corrosion-Resistant Coating for Copper Anodes in Microbial Fuel Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3144
Author(s):  
Fatma Bensalah ◽  
Julien Pézard ◽  
Naoufel Haddour ◽  
Mohsen Erouel ◽  
François Buret ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Anode Material ◽  
Microbial Fuel Cells ◽  
High Performance ◽  
Carbon Nanofiber ◽  
Galvanic Corrosion ◽  
Weight Ratio ◽  
Practical Implementation ◽  
Corrosion Resistant ◽  
Nano Fiber

The development of high-performance anode materials is one of the greatest challenges for the practical implementation of Microbial Fuel Cell (MFC) technology. Copper (Cu) has a much higher electrical conductivity than carbon-based materials usually used as anodes in MFCs. However, it is an unsuitable anode material, in raw state, for MFC application due to its corrosion and its toxicity to microorganisms. In this paper, we report the development of a Cu anode material coated with a corrosion-resistant composite made of Polydimethylsiloxane (PDMS) doped with carbon nanofiber (CNF). The surface modification method was optimized for improving the interfacial electron transfer of Cu anodes for use in MFCs. Characterization of CNF-PDMS composites doped at different weight ratios demonstrated that the best electrical conductivity and electrochemical properties are obtained at 8 % weight ratio of CNF/PDMS mixture. Electrochemical characterization showed that the corrosion rate of Cu electrode in acidified solution decreased from (17 ± 6) × 103 μm y−1 to 93 ± 23 μm y−1 after CNF-PDMS coating. The performance of Cu anodes coated with different layer thicknesses of CNF-PDMS (250 µm, 500 µm, and 1000 µm), was evaluated in MFC. The highest power density of 70 ± 8 mW m−2 obtained with 500 µm CNF-PDMS was about 8-times higher and more stable than that obtained through galvanic corrosion of unmodified Cu. Consequently, the followed process improves the performance of Cu anode for MFC applications.

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