Production and Application of Crystalline Graphite Fine Particles with High Specific Surface Area Derived from Natural Graphite by Mechanical Grinding in Controlled Atmosphere

Abstract

  Herein we produce high-crystallinity graphite particles having high specific surface area by means of planetary ball milling under the well-controlled atmosphere. PtCl₄-graphite intercalation compounds (PtCl₄-GIC) are successfully synthesized as the catalyst for hydrogenation reaction of gaseous 1, 3-butadiene. The effect of specific surface area and crystallinity of ground products on the synthesis for PtCl₄-GICs is reported. Well-defined PtCl₄-GIC was synthesized only by use of the ground graphite particles which have both high specific surface area and high-crystallinity. The resulting GIC is a candidate precursor for the hydrogenation catalyst.