Influence Factors of Exfoliation Synthesis Exfoliated Graphite from Vietnamese Natural Graphite Flakes Using Microwave Irradiation

Abstract:

In this study, we prepared the exfoliated graphite (EG) using microwave-assisted exfoliation synthesis exfoliated graphite from the inexpensive natural Vietnamese graphite flakes as the precursors. The exfoliation of graphite was conducted employing intercalation method using H₂O₂ as oxidizing agent and H₂SO₄ as intercalating agent. The influent of the precursors (V_H2O2/V_H2SO4) (1.0/20 – 2.0/20), pH value of EG (1-6), time intercalation (70-120 min), microwave power (180-720 W), and time microwave (10-60 second) in the exfoliation volume of EG was investigated.

• Periodical: Solid State Phenomena (Volume 279)
• Pages: 230-234
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.279.230
• Online since: August 2018
• Authors: Van Thinh Pham, Trinh Duy Nguyen, Nguyen Thi Thuong, Van Thi Thanh Ho, Bui Thi Phuong Quynh, Long Giang Bach*
• Keywords: Exfoliated Graphite, Influence Factors Microwave-Assisted Exfoliation Synthesis, Natural Graphite Flakes

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