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High Temperature Vacuum Annealing and Hydrogenation Modification of Exfoliated Graphite Nanoplatelets
Joint Authors
Drzal, Lawrence T.
Biswas, Sanjib
Li, Xiaobing
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-10
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Highly active defect sites on the edges of graphene automatically capture oxygen from air to form various oxygen groups.
A two-step procedure to remove various oxygen functional groups from the defect sites of exfoliated graphene nanoplatelets (GNPs) has been developed to reduce the atomic oxygen concentration from 9.5% to 4.8%.
This two-step approach involves high temperature vacuum annealing followed by hydrogenation to protect the reduced edge carbon atoms from recombining with the atmospheric oxygen.
The reduced GNPs exhibit decreased surface resistance and graphitic potential-dependent capacitance characteristics compared to the complex potential-dependent capacitance characteristics exhibited by the unreduced GNPs as a result of the removal of the oxygen functional groups present primarily at the edges.
These reduced GNPs also exhibit high electrochemical cyclic stability for electrochemical energy storage applications.
American Psychological Association (APA)
Li, Xiaobing& Biswas, Sanjib& Drzal, Lawrence T.. 2013. High Temperature Vacuum Annealing and Hydrogenation Modification of Exfoliated Graphite Nanoplatelets. Journal of Engineering،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-487263
Modern Language Association (MLA)
Li, Xiaobing…[et al.]. High Temperature Vacuum Annealing and Hydrogenation Modification of Exfoliated Graphite Nanoplatelets. Journal of Engineering No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-487263
American Medical Association (AMA)
Li, Xiaobing& Biswas, Sanjib& Drzal, Lawrence T.. High Temperature Vacuum Annealing and Hydrogenation Modification of Exfoliated Graphite Nanoplatelets. Journal of Engineering. 2013. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-487263
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-487263