Iron manganese Oxide Modified Multi-walled Carbon Nanotube as Efficient Adsorbent for Removal of Organic Dyes: Performance, Kinetics and Mechanism Studies

2020 ◽  
Vol 30 (10) ◽  
pp. 4027-4042
Author(s):  
Tian Ma ◽  
Yunhai Wu ◽  
Ningning Liu ◽  
Yunying Wu
Keyword(s):  
Carbon Nanotube ◽  
Manganese Oxide ◽  
Organic Dyes ◽  
Kinetics And Mechanism ◽  
Multi Walled Carbon Nanotube ◽  
Iron Manganese ◽  
Efficient Adsorbent

scholarly journals Electrochemical Analysis of Architecturally Enhanced Life0.5Mn0.5PO4 Multi-Walled Carbon Nanotube Composite

2021 ◽  
Vol 66 ◽  
pp. 1-11
Author(s):  
Sabelo Sifuba ◽  
Shane Willenberg ◽  
Usisipho Feleni ◽  
Natasha Ross ◽  
Emmanuel Iwuoha
Keyword(s):  
Electron Transfer ◽  
Carbon Nanotube ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Electrochemical Analysis ◽  
Spectroscopic Techniques ◽  
Redox Potentials ◽  
Manganese Phosphate ◽  
Multi Walled Carbon Nanotube ◽  
Iron Manganese

In this work, the effect of carbon on the electrochemical properties of multi-walled carbon nanotube (MWCNT) functionalized Lithium iron manganese phosphate was studied. In an attempt to provide insight into the structural and electronic properties of optimized electrode materials a systematic study based on a combination of structural and spectroscopic techniques. The phosphor-olivine LiFe0.5Mn0.5PO4, was synthesized via a simple microwave synthesis using LiFePO4 and LiMnPO4 as precursors. Cyclic voltammetry was used to evaluate the electrochemical parameters (electron transfer and ionic diffusivity) of the LiFe0.5Mn0.5PO4 redox couples. The redox potentials show two separate distinct redox peaks that correspond to Mn2+/Mn3+ (4.1 V vs Li/Li+) and Fe2+/Fe3+ (3.5 V vs Li/Li+) due to interaction arrangement of Fe-O-Mn in the olivine lattice. The electrochemical impedance spectroscopy (EIS) results showed LiFe0.5Mn0.5PO4-MWCNTs having high conductivity with reduced charge resistance. This result demonstrates that MWCNTs stimulates faster electron transfer and stability for the LiFe0.5Mn0.5PO4 framework, which demonstrates favorable as a host material for Li+ ions.

DC-field-driven combustion waves for one-step fabrication of reduced manganese oxide/multi-walled carbon nanotube hybrid nanostructures as high-performance supercapacitor electrodes

2017 ◽  
Vol 5 (47) ◽  
pp. 24707-24719 ◽  
Author(s):  
Taehan Yeo ◽  
Dongjoon Shin ◽  
Jungho Shin ◽  
Hayoung Hwang ◽  
Byungseok Seo ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Manganese Oxide ◽  
High Performance ◽  
Hybrid Nanostructures ◽  
Combustion Waves ◽  
Nanostructured Electrodes ◽  
Multi Walled Carbon Nanotube ◽  
One Step

DC field-driven combustion waves enable one-step fabrication of heterogeneously reduced, nanostructured electrodes for high-performance supercapacitors.

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