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Open AccessArticle

High Efficient Reduction of Graphene Oxide via Nascent Hydrogen at Room Temperature

by Qiqi Zhuo 1, Jijun Tang 1, Jun Sun 2 and Chao Yan 1,*
College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, China
College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, China
Author to whom correspondence should be addressed.
Materials 2018, 11(3), 340;
Received: 25 January 2018 / Revised: 20 February 2018 / Accepted: 22 February 2018 / Published: 27 February 2018
(This article belongs to the Section Carbon Materials)
To develop a green and efficient method to synthesize graphene in relative milder conditions is prerequisite for graphene applications. A chemical reducing method has been developed to high efficiently reduce graphene oxide (GO) using Fe2O3 and NH3BH3 as catalyst and reductants, respectively. During the process, environmental and strong reductive nascent hydrogen were generated surrounding the surface of GO sheets by catalyst hydrolysis reaction of NH3BH3 and were used for reduction of GO. The reduction process was studied by ultraviolet absorption spectroscopy, Raman spectroscopy, and Fourier transform infrared spectrum. The structure and morphology of the reduced GO were characterized with scanning electron microscopy and transmission electron microscopy. Compared to metal (Mg/Fe/Zn/Al) particles and acid system which also use nascent hydrogen to reduce GO, this method exhibited higher reduction efficiency (43.6%). Also the reduction was carried out at room temperature condition, which is environmentally friendly. As a supercapacitor electrode, the reversible capacity of reduced graphene oxide was 113.8 F g−1 at 1 A g−1 and the capacitance retention still remained at 90% after 200 cycles. This approach provides a new method to reduce GO with high reduction efficiency by green reductant. View Full-Text
Keywords: graphene oxide; graphene; reductants graphene oxide; graphene; reductants
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MDPI and ACS Style

Zhuo, Q.; Tang, J.; Sun, J.; Yan, C. High Efficient Reduction of Graphene Oxide via Nascent Hydrogen at Room Temperature. Materials 2018, 11, 340.

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