A green, simple and cost-effective approach to synthesize high quality graphene by electrochemical exfoliation via process optimization

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題名:	A green, simple and cost-effective approach to synthesize high quality graphene by electrochemical exfoliation via process optimization
作者:	蘇清源;Chuang, Chung-Hsien;Su, Ching-Yuan;Hsu, Kuei-Ting;Chen, Chia-Hsuan;Huang, Chia-Hung;Chu, Chi-Wen;Liu, Wei-Ren
貢獻者:	工學院能源工程研究所
關鍵詞:	atomic force microscopy;cost effectiveness;electrochemistry;electrolytes;Fourier transform infrared spectroscopy;graphene;manufacturing;nanosheets;physicochemical properties;potassium hydroxide;Raman spectroscopy;sulfuric acid;X-ray diffraction;X-ray photoelectron spectroscopy
日期:	2015-01-01
上傳時間:	2026-04-23 11:55:58 (UTC+8)
出版者:	Royal Society of Chemistry
摘要:	摘要： This research focuses on manufacturing graphene nanosheets (GNSs) using an electrochemical exfoliation method. Through tuning the synthetic parameters, such as the composition of electrolytes, concentration of the electrolyte, KOH/H 2 SO 4 ratio, and applied voltage and current density, the relationships between the material's characteristics and synthetic parameters were studied. The physical and chemical properties of as-synthesized GNSs were systematically studied using scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), atomic force microscopy (AFM), Raman spectroscopy (Raman), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Among the synthetic parameters, current density plays a very important role in this exfoliation process. Under the optimal current density of 0.11 A cm −2 , we successfully synthesized high quality GNSs with a D/G ratio of 0.061, which is far superior to the reported values of other groups. The results indicate that a green, simple and cost-effective exfoliation process has been successfully developed in this study. High-quality graphene was successfully manufactured by electrochemical exfoliation method via tuning the synthetic parameters of electrolyte composition and current density. 出版日期： 2015-01-01 出處： RSC advances, 2015-01, Vol.5 (67), p.54762-54768 資源來源： Royal Society of Chemistry 識別號： ISSN: 2046-2069 識別號： EISSN: 2046-2069 識別號： DOI: 10.1039/c5ra07710a
顯示於類別:	[能源工程研究所 ] 期刊論文

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