- document
-
Postma, J.I. (author), Ferrari, A. (author), Bottger, A.J. (author)Surface compositions play a predominant role in the efficiency and lifetime of membranes and catalysts. The surface composition can change during operation due to segregation, thus controlling and predicting the surface composition is essential. Computational modelling can aid in predicting alloy stability, along with designing surface alloys...journal article 2023
- document
-
Radmanesh, Farzaneh (author), Tena, Alberto (author), Sudhölter, Ernst J. R. (author), Hempenius, Mark A. (author), Benes, Nieck E. (author)A series of cyclomatrix polyphosphazene films have been prepared by nonaqueous interfacial polymerization (IP) of small aromatic hydroxyl compounds in a potassium hydroxide dimethylsulfoxide solution and hexachlorocyclotriphosphazene in cyclohexane on top of ceramic supports. Via the amount of dissolved potassium hydroxide, the extent of...journal article 2023
- document
-
Burgers, Iris (author), Dehdari, Leila (author), Xiao, Penny (author), Li, Kevin Gang (author), Goetheer, E.L.V. (author), Webley, Paul (author)Logistics of hydrogen is one of the bottlenecks of a hydrogen economy. In this study, a pressure swing adsorption (PSA) system is proposed for the separation of hydrogen from natural gas, co-transported in the natural gas grid. The economic feasibility of hydrogen supplied by a PSA system at a refuelling station is assessed and compared with...journal article 2022
- document
-
Zhao, M. (author), Brouwer, J.C. (author), Sloof, W.G. (author), Bottger, A.J. (author)Pd–Cu alloys have been investigated as promising candidates for hydrogen separation membranes. Surface segregation influences the long-term performance of these membranes since their catalytic effect is mainly controlled by the surface composition. In the present research, surface segregation of Pd-40 at.% Cu alloy in vacuum and various gas...journal article 2020
- document
-
Zhao, M. (author), Sloof, W.G. (author), Bottger, A.J. (author)Surface segregation of a series of forty Palladium-based binary alloys has been investigated using a thermodynamic model based on an atom exchange approach. Their surface segregation behaviour, both in vacuum and in gas environments, were comprehensively estimated. The calculated results are in good agreement with the available experimental...journal article 2018