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Omojola T, van Veen AC. Mechanistic insights into the conversion of dimethyl ether over ZSM-5 catalysts: A combined temperature-programmed surface reaction and microkinetic modelling study. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Staszczuk P, Danielkiewicz T, Klinowski J. Studies of the Surface Properties of an MCM-41 Molecular Sieve Using Thermal Analysis and Nitrogen Adsorption Methods. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617001493459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The Q-TG mass loss and first derivative Q-DTG mass loss curves with respect to temperature and time obtained during programmed liquid thermodesorption under quasi-isothermal conditions have been used to study adsorbed layers on and the heterogeneous properties of an MCM-41 molecular sieve. The values of the adsorption capacity, total porosity of the material, discontinuous charges in adsorption layer properties and changes in the mechanism of the wetting process have been determined. The porosity parameters of the samples studied were also determined from nitrogen adsorption measurements. The total pore volumes of the tested samples were compared with thermogravimetric data with good correlations being obtained.
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Affiliation(s)
- P. Staszczuk
- Department of Physicochemistry of Solid Surfaces, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - T. Danielkiewicz
- Department of Physicochemistry of Solid Surfaces, Faculty of Chemistry, Maria Curie-Sklodowska University, M. Curie-Sklodowska Sq. 3, 20-031 Lublin, Poland
| | - J. Klinowski
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
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Bandstra JZ, Tratnyek PG. Applicability of Single-Site Rate Equations for Reactions on Inhomogeneous Surfaces. Ind Eng Chem Res 2004. [DOI: 10.1021/ie034250a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joel Z. Bandstra
- Department of Environmental and Biomolecular Systems, Oregon Health & Science University, 20000 NW Walker Road, Beaverton, Oregon 97006-8921
| | - Paul G. Tratnyek
- Department of Environmental and Biomolecular Systems, Oregon Health & Science University, 20000 NW Walker Road, Beaverton, Oregon 97006-8921
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Staszczuk P. Studies of silica gel surface wetting phenomena by means of controlled-rate thermal analysis. Colloids Surf A Physicochem Eng Asp 1995. [DOI: 10.1016/0927-7757(95)03313-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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