scholarly journals Electrochemical performance of hybrid supercapacitor device based on birnessite-type manganese oxide decorated on uncapped carbon nanotubes and porous activated carbon nanostructures

2018 ◽  
Vol 289 ◽  
pp. 363-375 ◽  
Author(s):  
F. Ochai-Ejeh ◽  
M.J. Madito ◽  
K. Makgopa ◽  
M.N. Rantho ◽  
O. Olaniyan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Electrochemical Performance ◽  
Manganese Oxide ◽  
Carbon Nanostructures ◽  
Hybrid Supercapacitor ◽  
Porous Activated Carbon

Pressure Isotherms of Hydrogen Adsorption in Carbon Nanostructures

2001 ◽  
Vol 706 ◽  
Author(s):  
Xiaohong Chen ◽  
Urszula Dettlaff-Weglikowska ◽  
Miroslav Haluska ◽  
Martin Hulman ◽  
Siegmar Roth ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Hydrogen Storage ◽  
Carbon Nanostructures ◽  
Room Temperature ◽  
Storage Capacity ◽  
Hydrogen Adsorption ◽  
Single Wall Carbon Nanotubes ◽  
Hydrogen Storage Capacity ◽  
Carbon And Graphite

AbstractThe hydrogen adsorption capacity of various carbon nanostructures including single-wall carbon nanotubes, graphitic nanofibers, activated carbon, and graphite has been measured as a function of pressure and temperature. Our results show that at room temperature and a pressure of 80 bar the hydrogen storage capacity is less than 1 wt.% for all samples. Upon cooling, the capacity of hydrogen adsorption increases with decreasing temperature and the highest value was observed to be 2.9 wt. % at 50 bar and 77 K. The correlation between hydrogen storage capacity and specific surface area is discussed.

Electrochemical Performance of Lithium-Ion Hybrid Supercapacitors based on Activated Carbon and Nanoplatelet Li4Ti5O12 Insertion Electrode Synthesized by Nanoscission Technique

2015 ◽  
Vol 1740 ◽  
Author(s):  
Sandeep Singh ◽  
Alok C Rastogi ◽  
Fredrick Omenya ◽  
M Stanley Whittingham ◽  
Archit Lal ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Lithium Ion ◽  
Charge Transfer Resistance ◽  
Electrode Polarization ◽  
Hybrid Supercapacitor ◽  
Transfer Resistance ◽  
Hybrid Supercapacitors ◽  
Current Change ◽  
Kinetic Effects

ABSTRACTElectrochemical performance of hybrid supercapacitor (HSC) utilizing surface sculpted Li4Ti5O12 (LTO) insertion electrode having nanoplatelet-like morphology and activated carbon (AC) electrode is investigated for energy storage application. Cyclic voltammetry (CV) at variable scan rates 0.5 to 60 mV.s-1 in the 0-3.2 V range show pseusocapacitive behavior and fast rate of current change indicating rapid Faradaic kinetics. Nyquist impedance study show charge transfer resistance due to kinetic effects of electron transfer and Li+ de-intercalation process at the LTO anode. Low capacity (0.2 C-1C) charge-discharge (CD) curves show high Coulomb efficiency with marginal reduction at high 5-10 C rates due to irreversibility of adsorbed PF6 anions at the electrolyte-AC interface. Galvanostatic CD cycling tests over 50 cycles at different C-rates show decline in storage capacity due to electrode polarization effects. Reduction, broadening and shift of the Raman line at 678 cm-1 from Ti-O bonds in TiO6 octahedra after cycling indicates Li insertion reactions in functioning of hybrid supercapacitor. The hybrid supercapacitor cells have shown energy density, 29 Wh.kg-1 and power density, 350 W.kg-1.

Nanostructured manganese oxide/carbon nanotubes, graphene and graphene oxide as water-oxidizing composites in artificial photosynthesis

2014 ◽  
Vol 43 (28) ◽  
pp. 10866-10876 ◽  
Author(s):  
Mohammad Mahdi Najafpour ◽  
Fahime Rahimi ◽  
Maryam Fathollahzadeh ◽  
Behzad Haghighi ◽  
Małgorzata Hołyńska ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Manganese Oxide ◽  
Carbon Nanostructures ◽  
Artificial Photosynthesis ◽  
Mn Oxide

Nano-sized Mn oxide/carbon nanostructures as water-oxidizing catalyts are reported.

High performance N-doped porous activated carbon based on chicken feather for supercapacitors and CO2 capture

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34803-34811 ◽  
Author(s):  
Zijian Zhao ◽  
Yong Wang ◽  
Min Li ◽  
Ru Yang
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Co2 Capture ◽  
High Performance ◽  
Chicken Feather ◽  
Porous Carbons ◽  
Excellent Electrochemical Performance ◽  
Porous Activated Carbon ◽  
Carbon Based

The chicken feather-derived N-doped porous carbons exhibit excellent electrochemical performance and high CO2 uptake.

Improving the Electrochemical Performance of Hybrid Supercapacitor using Well-organized Urchin-like TiO 2 and Activated Carbon

2016 ◽  
Vol 208 ◽  
pp. 202-210 ◽  
Author(s):  
Hyeong-Jong Choi ◽  
Jin Hyeon Kim ◽  
Hong-Ki Kim ◽  
Seung-Hwan Lee ◽  
Young-Hie Lee
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Hybrid Supercapacitor

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

scholarly journals High electrochemical performance of hierarchical porous activated carbon derived from lightweight cork (Quercus suber)

2017 ◽  
Vol 52 (17) ◽  
pp. 10600-10613 ◽  
Author(s):  
Faith O. Ochai-Ejeh ◽  
Abdulhakeem Bello ◽  
Julien Dangbegnon ◽  
Abubakar Abubakar Khaleed ◽  
Moshawe Jack Madito ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Quercus Suber ◽  
Hierarchical Porous ◽  
Porous Activated Carbon
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