Intercalation of barium into graphite by molten salts method: Synthesis of massive samples for crystal structure determination of BaC6. (January 2022)

• Record Type: Journal Article
• Authors: El Hajj, I.; Speyer, L.; Cahen, S.; Herbuvaux, L.; Lagrange, P.; Medjahdi, G.; Hérold, C.
• Is Part Of: Carbon. Volume 186(2022)
• Page Start: 431
• Page End: 436
• Publication Date: 2022-01
• Subjects: Graphite -- Intercalation -- Molten salts -- X-ray diffraction -- Structural resolution; Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2021.09.073
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: A solid-liquid method is used to synthesize the first stage bulk BaC6 graphite intercalation compound (GIC). This way of synthesis allows the preparation of bulk and massive samples useful for crystal structure determination. Through a eutectic medium LiCl–KCl, and by submerging a graphite platelet in barium-molten solution at 450 °C for several days, the bulk BaC6 compound is obtained and X-ray diffraction investigations allowed a complete structural study. The collected data certify that BaC6 crystallizes in the hexagonal P 63 / mmc space group with the following parameters a = b = 430.6 pm and c = 1058.2 pm. Graphical abstract: Image 1