✦ LIBER ✦

Use of argon adsorption isotherms for characterizing microporous activated carbons

✍ Scribed by M. Jaroniec; X. Lu; R. Madey; J. Choma; J. Klinik

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 375 KB
Volume: 69
Category: Article
ISSN: 0016-2361
DOI: 10.1016/0016-2361(90)90325-k

No coin nor oath required. For personal study only.

✦ Synopsis

Argon adsorption isotherms measured at 77.5 K on various microporous activated carbons were analysed to characterize the structural heterogeneities of these sorbents. It was found that the adsorption isotherms could be described by an isotherm equation associated with the gamma micropore-size distribution. Parameters of this distribution function characterized the structural heterogeneity of the microporous activated carbon studied. Comparison of these parameters for various activated carbons showed the dependence of the microporosity of these carbons on the kind of raw material used and on the preparation conditions.

📜 SIMILAR VOLUMES

The Use of Liquid Phase Adsorption Isoth

The Use of Liquid Phase Adsorption Isotherms for Characterization of Activated Carbons

✍ Suryadi Ismadji; Suresh K. Bhatia 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 437 KB

The characterization of three commercial activated carbons was carried out using the adsorption of various compounds in the aqueous phase. For this purpose the generalized adsorption isotherm was employed, and a modification of the Dubinin-Radushkevich pore filling model, incorporating repulsive con

Comparison of adsorption methods for cha

Comparison of adsorption methods for characterizing the microporosity of activated carbons

✍ M. Jaroniec; R. Madey; J. Choma; B. McEnaney; T.J. Mays 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 676 KB

Adsorption methods for characterizing the microporosity of activated carbons are discussed critically. Three methods-the a,-method and those based on the Dubinin-Radushkevich and Jaroniec-Choma isotherm equations-are compared with respect to the parameters that characterize the microporous structure

The adsorption potential of argon in sli

The adsorption potential of argon in slit-shaped micropores of active carbon

✍ L.F. Smirnova; V.A. Bakaev; M.M. Dubinin 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 420 KB

The adsorption potential of argon in active carbon has been calculated under the assumption of a limited-size slit-shaped micropore enclosed between two walls formed by the basic atomic planes of graphite. As the slit width becomes smaiier than a certain critical value an energy barrier arises at th

Application of an exponential isotherm e

Application of an exponential isotherm equation for describing gas adsorption on microporous activated carbons

✍ M. Jaroniec; X. Lu; R. Madey 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 424 KB

new equation for gas adsorption on microporous solids is proposed on the basis of the exponential adsorption isotherm. which is generated by the virial expansion of the spreading pressure. Expressions associated with this equation are derived also for the adsorption potential distribution. the diffe

Characterization of adsorption of nitrog

Characterization of adsorption of nitrogen and n-butane in microporous activated carbon

✍ Keito Boki; Seiki Tanada; Shozo Tsutsui; Nobuhiro Ohtani; Ryoji Yamasaki 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 134 KB

Energetic and structural heterogeneity o

Energetic and structural heterogeneity of activated carbons determined using dubinin isotherms and an adsorption potential in model micropores

✍ Jacek Jagiełł; James A Schwarz 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 1014 KB