Search results for: K. Cwieka

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article

Catalytic activity of NiO cathode in molten carbonate fuel cells

K. Czelej, K. Cwieka, J.C. Colmenares, K.J. Kurzydlowski

Applied Catalysis B: Environmental > 2018 > 222 > Complete > 73-75

Molten carbonate fuel cells (MCFCs) have attracted significant attention because of their potential contribution to the development of a sustainable and clean-energy society. MCFC performance is governed by cathodic transformation of carbon dioxide to carbonate anion in complex: gas - molten carbonate - solid surface system. Based on our recently proposed reaction mechanism together with the density...

article

Status report on high temperature fuel cells in Poland – Recent advances and achievements

J. Molenda, J. Kupecki, R. Baron, M. Blesznowski, more

International Journal of Hydrogen Energy > 2017 > 42 > 7 > 4366-4403

The paper presents recent advances in Poland in the field of high temperature fuel cells. The achievements in the materials development, manufacturing of advanced cells, new fabrication techniques, modified electrodes and electrolytes and applications are presented. The work of the Polish teams active in the field of solid oxide fuel cells (SOFC) and molten carbonate fuel cell (MCFC) is presented...

article

Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams

K. Ćwieka, T. Wejrzanowski, K. J. Kurzydłowski

Archives of Metallurgy and Materials > 2017 > Vol. 62, iss. 1 > 259--262

In the present paper we present the approach for modeling of the elastic behavior of open-cell metallic foams concerning non-uniform pore size distribution. This approach combines design of foam structures and numerical simulations of compression tests using finite element method (FEM). In the design stage, Laguerre-Voronoi tessellations (LVT) were performed on several sets of packed spheres with...

article

Design of open-porous materials for high-temperature fuel cells

T. Wejrzanowski, H. Ibrahim, K. Cwieka, J. Milewski, more

Journal of Power of Technologies > 2016 > Vol. 96, nr 3 > 178--182

Microstructure is one of the major factors influencing material properties. It is especially important for open-porous materials dedicated to catalytic applications, where fraction of pores, their size distribution and specific surface influence the diffusion of reactants and the kinetics of catalytic reactions. In these studies the numerical models of the microstructure of open-porous electrodes...

article

Electrodeposition of Ni/SiC composite coating aluminium

L. Burzyńska, E. Rudnik, K. Ćwięka

Archives of Metallurgy and Materials > 2009 > Vol. 54, iss. 3 > 845-851

A hydrometallurgical method for production of Ni/SiC composite coating on aluminium was developed. The following consecutive stages were proposed: zincating of aluminium substrate for 5 min in alkaline zincate solution, electroless nickel deposition for 1 h by immersion in nickel-acetate solution with sodium hypophosphite as a reductant and, finally, electrodeposition of Ni/SiC composite from a chloride-sulphate...

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Search results for: K. Cwieka

Catalytic activity of NiO cathode in molten carbonate fuel cells

Status report on high temperature fuel cells in Poland – Recent advances and achievements

Incorporation of the Pore Size Variation to Modeling of the Elastic Behavior of Metallic Open-Cell Foams

Design of open-porous materials for high-temperature fuel cells

Electrodeposition of Ni/SiC composite coating aluminium

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