▎ 摘 要
NOVELTY - Preparing graphene hollow particle, comprises (a) mixing graphene oxide solution and polymer particles with colloidal solution and then dispersing to prepare dispersion liquid, (b) spraying the dispersion liquid on particles, and (c) placing the sprayed particles in a liquid drop tubular and then heating and pyrolyzing, and collecting the hollow particles. USE - The method is useful for preparing graphene hollow particle (claimed), which is useful in a biosensor, a biocatalyst, an organic compound absorbent, a semiconductor electrode, a fuel cell and a hydrogen storage material. ADVANTAGE - The method is capable of rapidly preparing the graphene hollow particle with specific surface area and excellent physical, electrical and thermal properties.