Abstract. Exfoliated graphite materials had been rapidly and efficiently prepared by microwave irradiation in a short time (about 4 min including 3 min mixing and 1 min microwave irradiation). The promotion of the intercalation by microwave irradiation was proven by X-ray diffraction. With increasing content of oxidant and intercalation agent, the expanded volume of exfoliated graphite inc…
Abstract. Strontium was introduced to modify CeO2–ZrO2 mixed oxides (CZ) by two methods, coprecipitation (CZS) and impregnation (SCZ). Structural and textural characterizations revealed that Sr could retard the sintering of oxide particles and restrict the phase segregation during the hydrothermal ageing treatment. Specifically, the impregnation method brought about a more satisfying ther…