Investigation of Electrical and Thermal Properties of Reduced Graphene Oxide-Multiwalled Carbon Nanotubes/PMMA Hybrid Nanocomposite

2017 ◽  
Vol 215 (5) ◽  
pp. 1700476 ◽  
Author(s):  
Kadambinee Sa ◽  
Prakash Chandra Mahakul ◽  
Sunirmal Saha ◽  
Dhrubananda Behara ◽  
Prakash Nath Vishwakarma ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Thermal Properties ◽  
Reduced Graphene Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Hybrid Nanocomposite ◽  
Multiwalled Carbon ◽  
Reduced Graphene

scholarly journals Graphene oxide-multiwalled carbon nanotubes composite as an anode for lithium ion batteries

2016 ◽  
Vol 34 (3) ◽  
pp. 481-486 ◽  
Author(s):  
Łukasz Majchrzycki ◽  
Mariusz Walkowiak ◽  
Agnieszka Martyła ◽  
Mikhail Y. Yablokov ◽  
Marek Nowicki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Functional Groups ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Multiwalled Carbon ◽  
Reduced Graphene

AbstractNowadays reduced graphene oxide (rGO) is regarded as a highly interesting material which is appropriate for possible applications in electrochemistry, especially in lithium-ion batteries (LIBs). Several methods were proposed for the preparation of rGO-based electrodes, resulting in high-capacity LIBs anodes. However, the mechanism of lithium storage in rGO and related materials is still not well understood. In this work we focused on the proposed mechanism of favorable bonding sites induced by additional functionalities attached to the graphene planes. This mechanism might increase the capacity of electrodes. In order to verify this hypothesis the composite of non-reduced graphene oxide (GO) with multiwalled carbon nanotubes electrodes was fabricated. Electrochemical properties of GO composite anodes were studied in comparison with similarly prepared electrodes based on rGO. This allowed us to estimate the impact of functional groups on the reversible capacity changes. As a result, it was shown that oxygen containing functional groups of GO do not create, in noticeable way, additional active sites for the electrochemical reactions of lithium storage, contrary to what has been postulated previously.

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