As synthesized graphite is produced by reacting CO2 with LiAlH4


In contrast to the high-temperature and catalytic graphitization, the as-synthesized graphite is produced by reacting CO2 with LiAlH4 at temperatures of less than 876 °C for only several seconds. Our synthesis of graphite consumes CO2, whereas the above two methods of creating synthetic graphite produce CO2 and hazardous gases during the carbonization of precursors. CO2 has been reported to synthesize graphitic carbon sheets by molten salt electrolysis or thermal reaction of CO2 with CaC2. However, the graphitization degree of graphitic carbons is much less than our as-synthesized graphite since the intensity ratio of G band to D band of 3.9 is far greater than that of 1.7 of graphitic carbon synthesized by molten salt electrolysis at 850 °C and that of 1.3 of graphitic carbon synthesized by reacting CO2 with CaC2 at 700–800 °C. The synthesis of the above graphitic carbons accompanies the evolution of CO. In this work, the synthesis of graphite is a green and time-saving process.

Furthermore, our as-synthesized graphite is easy to separate from impurities or byproducts, as indicated by energy dispersive spectroscopy (EDS) analysis and thermogravimetric (TG) measurement. The content of metal ions in as-synthesized graphite was characterized by inductively coupled plasma-mass spectrometry (ICP-MS). The purity of as-synthesized graphite is 99.988 wt% (metals basis), very close to 99.996 wt% of commercial graphite. In addition, the XRD peaks of graphite can be identified, but its intensity is lower than that of other crystalline phases in solid products. This may result from graphite being insensitive to X-ray compared with Al, LiAlO2, and Li2CO3. If you are looking for high quality, high purity, and cost-effective graphite or require the latest price, please email contact mis-asia.

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