Enhanced Electrochemical Performance by Strongly Anchoring Highly Crystalline Polyaniline on Multiwalled Carbon Nanotubes

2017 ◽  
Vol 9 (50) ◽  
pp. 43939-43949 ◽  
Author(s):  
Sumin Wang ◽  
Jiayin Shang ◽  
Qiguan Wang ◽  
Wenzhi Zhang ◽  
Xinming Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Performance ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Enhanced Electrochemical Performance

scholarly journals Electrochemical Performance of Lithium-Ion Capacitors Using Pre-Lithiated Multiwalled Carbon Nanotubes as Anode

NANO ◽  
2017 ◽  
Vol 12 (04) ◽  
pp. 1750051 ◽  
Author(s):  
Manyuan Cai ◽  
Xiaogang Sun ◽  
Yanyan Nie ◽  
Wei Chen ◽  
Zhiwen Qiu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Multiwalled Carbon Nanotubes ◽  
Current Density ◽  
Lithium Ion ◽  
Multiwalled Carbon ◽  
Charge Discharge

Pre-lithiated multiwalled carbon nanotube anode was prepared by internal short circuit approach(ISC) for 5[Formula: see text]min, 30[Formula: see text]min, 60[Formula: see text]min and 120[Formula: see text]min respectively. Lithium ion capacitors (LICs) were assembled by using pre-lithiated multiwalled carbon nanotubes as anodes and activated carbon (AC) as cathodes. The structure of multiwalled carbon nanotubes and electrodes were investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The electrochemical performance of pre-lithiated multiwalled carbon nanotube electrodes and pristine carbon nanotube electrodes were tested by galvanostatic charge/discharge and electrochemical impedance. The results indicated that pre-lithiation carbon nanotubes greatly improved the charge/discharge performance of LICs. The energy density was four times than conventional electric double-layer capacitors (EDLCs) at the current density of 100[Formula: see text]mA/g. The LICs achieved a specific capacitance of 59.3[Formula: see text]F/g at the current density of 100[Formula: see text]mA/g with 60[Formula: see text]min pre-lithiatiation process. The maximum energy density and power density was 96[Formula: see text]Wh/kg and 4035[Formula: see text]W/kg, respectively. The energy density still remained about 89.0% after 1000 cycles. The LIC showed excellent supercapacitor performance.

Effect of cobalt alloying on the electrochemical performance of manganese oxide nanoparticles nucleated on multiwalled carbon nanotubes

2017 ◽  
Vol 28 (15) ◽  
pp. 155403 ◽  
Author(s):  
Sajad Yazdani ◽  
Raana Kashfi-Sadabad ◽  
Alessandro Palmieri ◽  
William E Mustain ◽  
Michael Thompson Pettes
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Performance ◽  
Manganese Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Oxide Nanoparticles ◽  
Multiwalled Carbon ◽  
Manganese Oxide Nanoparticles

Electrochemical behavior of electrodes modified with metalloporphyrin and multiwalled carbon nanotubes for the reduction of oxygen, proton and carbon dioxide

2013 ◽  
Vol 17 (04) ◽  
pp. 259-263 ◽  
Author(s):  
Huazhang Zhao ◽  
Yingyue Chang ◽  
Chuan Liu
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotubes ◽  
Electrochemical Performance ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Photoelectron Spectroscopy ◽  
Microbial Fuel Cells ◽  
Iron Porphyrin ◽  
Multiwalled Carbon ◽  
Cobalt Porphyrin

Iron porphyrin and cobalt porphyrin were respectively modified on glassy carbon (GC) electrodes together with multiwalled carbon nanotubes (MWCNTs), and the modified electrodes were characterized by X-ray photoelectron spectroscopy (XPS). Their electrochemical performance for the reduction of oxygen (O2) , proton (H+) and carbon dioxide (CO2) were respectively investigated and compared by cyclic voltammetry (CV). The results showed that iron porphyrin-MWCNT modified electrode always had a better performance than cobalt porphyrin-MWCNT modified electrode. It is proposed that iron porphyrin-MWCNT modified electrode will have promising application in electrochemical architectures like microbial fuel cells (MFCs) and microbial electrolysis cells (MECs) for its good biocompatibility, easy availability, as well as excellent electrochemical performance.

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