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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
Pranay Ranjan, Shweta Agarwal, Apurva Sinha, T. Rajagopala Rao, Jayakumar Balakrishnan, Ajay D. Thakur 
Corresponding Authors:
Pranay Ranjan, Ajay D. Thakur 
DOI #:
10.1038/s41598-018-30613-4 
Title:
A Low-Cost Non-explosive Synthesis of Graphene Oxide for Scalable Applications 
Journal:
Scientific Reports  
Year:
2018 
Volume:
Page:
12007 
Keywords:
Graphene Oxide, A Low-Cost Non-explosive Synthesis 
Abstract:
A low cost, non-explosive process for the synthesis of graphene oxide (GO) is demonstrated. Using suitable choice of reaction parameters including temperature and time, this recipe does not require expensive membranes for fltration of carbonaceous and metallic residues. A pre-cooling protocol is introduced to control the explosive nature of the highly exothermic reactions during the oxidation process. This alleviates the requirement for expensive membranes and completely eliminates the explosive nature of intermediate reaction steps when compared to existing methods. High quality of the synthesized GO is corroborated using a host of characterization techniques including X-ray difraction, optical spectroscopy, X-ray photoemission spectroscopy and current-voltage characteristics. Simple reduction protocol using ultra-violet light is demonstrated for potential application in the area of photovoltaics. Using diferent reduction protocols together with the proposed inexpensive method, reduced GO samples with tunable conductance over a wide range of values is demonstrated. Density functional theory is employed to understand the structure of GO. We anticipate that this scalable approach will catalyze large scale applications of GO. 
Entered by:
Venkata Dantham on 2020-08-01 
 
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