Pd-NiO decorated multiwalled carbon nanotubes supported on reduced graphene oxide as an efficient electrocatalyst for ethanol oxidation in alkaline medium

2018 ◽  
Vol 442 ◽  
pp. 787-796 ◽  
Author(s):  
Dhanushkotti Rajesh ◽  
Pulidindi Indra Neel ◽  
Arumugam Pandurangan ◽  
Chinnathambi Mahendiran
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Alkaline Medium ◽  
Ethanol Oxidation ◽  
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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