Efficient preparation of meso-carbon microbeads from synthetic isotropic pitch derived from naphthalene

Y. Korai, S. Ishida, S. H. Yoon, Y. G. Wang, I. Mochida, Y. Nakagawa, Y. Matsumura, Y. Sakai, M. Komatu

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

An efficient preparation of mesophase spheres was attempted from synthetic isotropic pitches of naphthalene oligomers. A large number of spheres of rather uniform diameter were obtained by the carbonization at 380°C for 20 h. Volumetric and yields of spheres in the pitch were volumetrically measured under the optical microscope and extracted; a pyridine soluble fraction as high as 42 vol% and 15 wt%, respectively was reached. Such a difference in the yields suggests that the spheres prepared in the present study included a significant amount of the pyridine soluble fraction. The extracted sphere carried a number of pores, leaving rod-like units. Self-assembling units of pyridine insoluble fraction produced in the mesophase are suggested to be precipitated to form a spherical shape.

Original languageEnglish
Pages (from-to)1569-1576
Number of pages8
JournalCarbon
Volume34
Issue number12
DOIs
Publication statusPublished - 1996

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

Fingerprint Dive into the research topics of 'Efficient preparation of meso-carbon microbeads from synthetic isotropic pitch derived from naphthalene'. Together they form a unique fingerprint.

Cite this