Preparation of Expanded Graphite Using Recycling Graphite Rods by Microwave Irradiation

Abstract:

After washing, milling and calcining, the graphite rods recycled from waste dry batteries were used as raw material to prepare expandable graphite by chemical oxidation (using acetic anhydride as inserting and potassium dichromate as oxidant), the expanded graphite was prepared from the obtained expandable graphite by microwave radiation (MW) at 1000W for 60s.The characterization of infrared spectroscopy (IR) and scanning electron microscopy (SEM) of obtained expanded graphite have been discussed. The results show that it is feasible to prepare expanded graphite using graphite rods recycled from waste dry batteries.

• Periodical: Advanced Materials Research (Volumes 610-613)
• Pages: 2356-2360
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.610-613.2356
• Online since: December 2012
• Authors: Hong Liang Hua, Yun Wang, Yu Jia Wang, Shi Jun Ruan, Chao Zeng, Ting Zhang, Min Cong Zhu, Ying Chen Zhang, Deng Xin Li
• Keywords: Expanded Graphite, Expansible Graphite, Graphite Rods, Microwave Irradiation, Waste Dry Batteries

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