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    Low content reduced graphene oxide as the reinforcement in cellulosic conductive paper via a hetero-reduction

    Year: 2018

    Journal: J. Mater. Sci.-Mater. Electron., Volume 29, NOV, page 18614–18621

    Authors: Wang, Ruibin; Ma, Qianli; Wei, Liqing; Yang, Rendang

    Organizations: Chinese Scholarship Council; National Key Technology RD Program [2017YFB0307900]; Fundamental Research Funds for the Central Universities [2017PY007]; Open Foundation of Zhejiang Provincial Key Lab. for Chem. & Bio. Processing Technology of Farm Products; Zhejiang Provincial Collaborative Innovation Center of Agricultural Biological Resources Biochemical Manufacturing [2016KF0201]

    Cellulosic conductive paper/film reinforced by graphene is a promising substrate for energy storage applications due to its comparable conductivity, great flexibility and low cost. However, how to balance the content ratio of graphene/cellulose well is still a challenge. Because conductive paper of low graphene content usually has poor electrical property, while high graphene content is also discouraged owing to the decrease in other properties though electrically improved. Based on this, we developed a different method to produce thegraphene/cellulose composite conductive paper. Instead of a separate intermediate-fabrication, starting materials here are continuously one-pot processed, in prior to casting the intermediate paper (solid phase). Next, it is reduced by the l-ascorbic acid solution (liquid phase), followed by a filtration to give the hetero-reduced conductive paper (HRCP). Our results indicate that HRCP possesses high conductivity up to 376 +/- 4S/m, along with good thermal and dynamic behaviors, at a relatively low graphene content of 20wt%. Therefore, HRCP is expected to be utilized in the field of emerging energy storage.
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