摘要：AbstractGraphite whiskers (GWs) are obtained from coffee grounds (CGs) treated at 2500 °C for 1 h in the presence of Ar gas at 1 atm. The majority of the GWs formed inside the CGs shell are rod‐like with a conical tip with diameter and length in the range between 1 to 3 µm and 4 to 10 µm, respectively. At first, the carbon layer might be grown in a turbostratic manner, and then progressively graphitized at higher temperature. The strong G′ peak intensity might be induced by the disclination of graphitized carbon layers.The graphite whiskers (GWs)are derived from waste coffee grounds (CGs) treated at 2500 °C for 1 h in the presence of Ar gas at 1 atm. The significant feature of the GWs is the strong, single G′ peak intensity and highIG′/IG, which might be attributed to the disclination of graphitized carbon layer.
