Defect-associated microporous nature of C[sub 60] crystals

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100128a002· OSTI ID:5067039

Kaneko, K; Ishii, C ^[1]; Arai, T; Suematsu, H ^[2]

---

1. Chiba Univ., Yayoi (Japan)
2. Univ. of Tokyo (Japan)

The N[sub 2] adsorption isotherm of C[sub 60] crystals at 77 K was determined. The N[sub 2] adsorption isotherm was of type I, which indicates the presence of micropores. The observed micropore volume, total surface area, and external surface area were 0.014 mL g[sup [minus]1], 24 m[sup 2] g[sup [minus]1], and 1 m[sup 2] g[sup [minus]1], respectively. O[sub 2] molecules were reversibly adsorbed even above the boiling point. The amount of O[sub 2] adsorbed at 100 kPa and 303 K corresponded to an O[sub 2] molecule per two C[sub 60] molecules. The defect-associated micropore model was proposed on the basis of the estimated defect concentration and the critical percolation value. 28 refs., 3 figs.

• OSTI ID: 5067039
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 97:26; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ADSORPTION
CARBON
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELECTRON MICROSCOPY
ELEMENTS
FULLERENES
MICROSCOPY
NITROGEN
NONMETALS
OXYGEN
POROSITY
SCANNING ELECTRON MICROSCOPY
SORPTION