NDLI: Thermal Exfoliation of Natural Cellulosic Material for Graphene Synthesis

Content Provider	Springer Nature Link
Author	Ray, Ajoy Kumar Chatterjee, Somenath Singh, Jitendra Kumar Bapari, Himangshu
Copyright Year	2014
Abstract	Hibiscus flower petals have been used as a cheap natural resource precursor for cost-effective synthesis of high quality graphene by thermal exfoliation process. In order to compare the quality of graphene obtained from the flower petals directly with the flower petals pretreated with nickel(II) chloride, Raman spectroscopic technique has been used as the structural probe. The role of temperature and the effect of nickel on thermal exfoliation process have been examined. It has been observed that graphene obtained via nickel incorporation is of better quality because NI$^{2+}$ ions that get dispersed in the layered-structured cellulose at elevated temperatures get reduced to the metallic state, which in turn push the graphitic layers during thermal exfoliation to produce good quality graphene. In contrast, no such driving force is present in cellulose and hemi-cellulose of flower petals that contain lignin.
Starting Page	80
Ending Page	84
Page Count	5
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	24
Issue Number	1
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2014-10-22
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	electron microscopy graphene hibiscus flower petals Raman spectroscopy thermal exfoliation Characterization and Evaluation of Materials Tribology, Corrosion and Coatings Quality Control, Reliability, Safety and Risk Engineering Design
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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