Physicochemical properties of diesel particulate matter

M. M. Ross; T. H. Risby; W. A. Steele; S. S. Lestz; R. E. Yasbin

doi:10.1016/0166-6622(82)80054-1

Physicochemical properties of diesel particulate matter

M. M. Ross, T. H. Risby, W. A. Steele, S. S. Lestz, R. E. Yasbin

University Administration

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19 Scopus citations

Abstract

Some physicochemical properties of Diesel Particulate Matter (DPM) generated by two different engines have been measured and compared with those of a graphitized carbon black. A volumetric method of measuring adsorption isotherms was used to determine BET surface areas and heats of adsorption as a function of surface coverage of selected adsorbates. The effect of various outgassing, or "activation", conditions on the measured properties was investigated. Bulk and true densities of the solids were determined and electron microscopy was used to measure mean particle diameters and external surface areas. Results indicate some similar surface characteristics between carbon black and DPM due to common carbon/hydrogen structures. Significant differences, most notably in adsorption energies, are postulated to be the results of a more heterogeneous surface associated with DPM and the presence of presorbed material.

Original language	English (US)
Pages (from-to)	17-31
Number of pages	15
Journal	Colloids and Surfaces
Volume	5
Issue number	1
DOIs	https://doi.org/10.1016/0166-6622(82)80054-1
State	Published - 1982

ASJC Scopus subject areas

Engineering(all)

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10.1016/0166-6622(82)80054-1

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title = "Physicochemical properties of diesel particulate matter",

abstract = "Some physicochemical properties of Diesel Particulate Matter (DPM) generated by two different engines have been measured and compared with those of a graphitized carbon black. A volumetric method of measuring adsorption isotherms was used to determine BET surface areas and heats of adsorption as a function of surface coverage of selected adsorbates. The effect of various outgassing, or {"}activation{"}, conditions on the measured properties was investigated. Bulk and true densities of the solids were determined and electron microscopy was used to measure mean particle diameters and external surface areas. Results indicate some similar surface characteristics between carbon black and DPM due to common carbon/hydrogen structures. Significant differences, most notably in adsorption energies, are postulated to be the results of a more heterogeneous surface associated with DPM and the presence of presorbed material.",

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T1 - Physicochemical properties of diesel particulate matter

AU - Ross, M. M.

AU - Risby, T. H.

AU - Steele, W. A.

AU - Lestz, S. S.

AU - Yasbin, R. E.

PY - 1982

Y1 - 1982

N2 - Some physicochemical properties of Diesel Particulate Matter (DPM) generated by two different engines have been measured and compared with those of a graphitized carbon black. A volumetric method of measuring adsorption isotherms was used to determine BET surface areas and heats of adsorption as a function of surface coverage of selected adsorbates. The effect of various outgassing, or "activation", conditions on the measured properties was investigated. Bulk and true densities of the solids were determined and electron microscopy was used to measure mean particle diameters and external surface areas. Results indicate some similar surface characteristics between carbon black and DPM due to common carbon/hydrogen structures. Significant differences, most notably in adsorption energies, are postulated to be the results of a more heterogeneous surface associated with DPM and the presence of presorbed material.

AB - Some physicochemical properties of Diesel Particulate Matter (DPM) generated by two different engines have been measured and compared with those of a graphitized carbon black. A volumetric method of measuring adsorption isotherms was used to determine BET surface areas and heats of adsorption as a function of surface coverage of selected adsorbates. The effect of various outgassing, or "activation", conditions on the measured properties was investigated. Bulk and true densities of the solids were determined and electron microscopy was used to measure mean particle diameters and external surface areas. Results indicate some similar surface characteristics between carbon black and DPM due to common carbon/hydrogen structures. Significant differences, most notably in adsorption energies, are postulated to be the results of a more heterogeneous surface associated with DPM and the presence of presorbed material.

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Physicochemical properties of diesel particulate matter

Abstract

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