Saint-gobain Ceramics & Plastics, Inc.

James M Ralph

Thomas Szymanski

Randall Clayton Yeates

Matthew J Thompson

Tritti Siengchum

Ceramic articles such as catalyst carriers that include a continuous matrix and a dispersed phase distributed within the matrix as a plurality of discrete regions are disclosed. The matrix and discreet regions have different dye penetration test values. The disclosure also relates to methods of making and characterizing ceramic articles, and to catalyst bodies including the ceramic articles.

Ceramic article and methods of making the same

Methods and systems of analyzing and quantifying a surface acidity on a low surface area sample are disclosed. The methods include analyzing a quantity of an effluent molecular probe desorption from a temperature programmed desorption (TPD) process and system, by employing a mass spectroscopy (MS) system. The molecular probe is chemically adsorbed on a clean surface of the sample before the TPD process. The sample has a surface area to mass ratio of less than 5 m/g. In some embodiments, the total surface area analyzed in the method can be as low as 3 m.

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Copley, OH, United States of America

James M Ralph