FUNMAT research activities on
Hydrogen

Contents

Short description of research fields
Relevant publications
Staff and laboratories

Short description of research fields

In a longer term hydrogen is believed to become the foremost energy carrier. The major components in the expected “Hydrogen Economy” involve production, storage, transport, and final use of hydrogen, all of them with considerable technological challenges. This implies a need for new technological solutions where fundamental aspects related to the function of materials, components and systems are in focus.

Research at the intersection between energy and environment is a prioritized area in Norway. Of particular importance is to further enhance activities already being at a high international level, involvement in international networks and active partnership in joint projects with leading industry, both Norwegian and international. FUNMAT has its focus on materials that are of utmost importance in the hydrogen-chain; from production, via storage and end use of hydrogen. Such research has long tradition in Norway with established links industry. The gravity of activities lies within materials chemistry, electrochemistry, solid state physics and theory.

The FUNMAT partners are involved in several projects funded by the Research Council of Norway, EU, the Nordic Energy Research Program, and other international funding sources.

With respect to excellence and critical mass, FUNMAT will point at the following fields (web-links will be established to the mentioned topics):

Hydrogen production from natural gas

Environmental-friendly and sustainable hydrogen production from natural gas is naturally in focus owing to huge Norwegian gas resources. FUNMAT groups are e.g. involved in catalyst development for improved synthesis gas production. Reactor types such as fluidized bed reactor, membrane reactors, short contact type reactors and more recently heat exchange reactors and microreactors are studied for small scale production of hydrogen for fuel cell applications.

Membranes for hydrogen separation.

Currently, there are significant activities in the field of microporous ceramic membranes, dense mixed conducting ceramic membranes and dense Pd-based metallic membranes. FUNMAT is involved in several European and industry funded projects to develop such membrane technology. FUNMAT partners are well equipped for preparation (sputtering, sol-gel), characterisation and testing of membranes. Testing can be done up to high temperatures and high pressures relevant in hydrocarbon reforming and water gas shift reactions.

Hydrogen production by plasma cracking of hydrocarbons

A new plasma process developed by Kværner Oil and Gas and SINTEF Materials Technology provides carbon black and hydrogen (CB and H2) from hydrocarbons with no emissions. The new plant in Canada, Karbomont, is the first using high-temperature plasma technology to produce CB and H2. Core technology is a high temperature reactor in which the plasma torch (developed and patented by SINTEF) provides energy to decompose hydrocarbons directly into carbon and hydrogen. All types of gaseous and liquid hydrocarbons, from gas to heavy oils, can be used.

Materials for hydrogen storage. The research and competence in FUNMAT cover hydrogen storage in intermetallic metal hydrides, complex hydrides (alanates etc), inorganic-organic hybrid materials and carbon-based materials (incl. nanotubes and carbon nanofibers), as well as studies of the importance of nanostructuring and catalysts for hydrogenation. The partners have strong activities on syntheses of new materials (arc melting, induction melting, rapid solidification, ball milling techniques and hydrogenation) and characterization. All standard methods for surface and thermodynamically characterization are available, including PCT (Pressure-Composition-Temperature) and desorption spectroscopy. High-resolution powder neutron diffraction at the Norwegian Kjeller reactor (PUS-instrument) gives unique possibilities for structure determination of materials for hydrogen storage and in-situ studies of adsorption/ desorption processes. In addition, state-of-the art X-ray diffraction, excellent access to high-resolution powder X-ray diffraction at the Swiss-Norwegian Beam Lines at ESRF and state-of-the art TEM and SEM instruments for electron diffraction/microscopy provides quality and strength within structural characterization. Temperature, pressure, atmosphere (e.g. hydrogen) can be varied in the diffraction experiments.

Hydride batteries

With basis in competence in hydrogen storage (see above) and electrochemistry, activities aim at developing improved alloys for metal hydride batteries and hydride electrodes. Alloys are prepared by rapid solidification, arc melting or induction melting techniques. There is high competence in impedance characterization and modeling of hydriding/ dehydriding in porous electrode systems.

Materials for PEM technology

The FUNMAT partners have competence in both PEM technology for water electrolysis and fuel cells. For hydrogen production the highly effective electrode catalysts based on Pt (cathode) and mixed Ir/Ru-oxides for the anode are of particular interest. The PEM Fuel Cell work is focused around fundamental electrochemical studies (electro-catalysis, electrode optimization) and also surface treatments and new membrane materials are being tested. Mathematical modeling based on conventional electrochemical theory, irreversible thermodynamics and fluid dynamics supports the experiments.

Materials for solid oxide fuel cells (SOFC)

Proton conducting oxide materials are intermediate temperature proton conductors with potential applications in fuel cells. High expertise in defect chemistry and studies of transport phenomena combines in FUNMAT with activities searching for novel, improved materials. In addition FUNMAT has expertise in electrochemical characterisation of electrode materials, determination of kinetics and mechanisms of the electrode processes and measurements of oxygen transport properties.

Theory and modelling

is done on many levels, from quantum physics and chemistry, via understanding of electronic phenomena to ionic transport and macroscopic behaviour of materials. FUNMAT has strong activities in modelling of solid materials using Density Functional Band Structure Methods (DFT). This approach is used to understand the bonding in materials for hydrogen storage and the absorption process of hydrogen through metal surfaces.

Relevant publications

Hydrogen production.

• Å. Slagtern, Y. Schuurman, C. Leclerq, X. Verykios and C. Mirodatos: CH4 reforming by CO2 over Ni/La2O3. J. Catal. 172 (1997) 118-126

• Å. Slagtern, U. Olsbye, R. Blom, I. M. Dahl and H. Fjellvåg: In situ XRD characterization studies of La-Ni-Al-O model catalyst for CO2 reforming of methane. Applied Catalysis A: General 145 (1996) 375-388.

• S. S. Voutetakis, G. J. Tjatjopoulos, I. A. Vasalos and U. Olsbye: Catalytic Partial Oxidation of Methane in a Spouted Bed Reactor. Design of a Pilot Plant Unit and Optimization of Operating Conditions. Stud. Surf. Sci. Cat., 119, (1998), 807-812.

Membranes for hydrogen separation

• Rune Bredesen and Jostein Sogge, "A Technical and Economic Assessment of Membrane Reactors for Hydrogen and Syngas Production". Paper presented at the United Nation Seminar on the Ecological Applications of Innovative Membrane Technology in the Chemical Industry. Ref. UN Economic Commission for Europe, CHEM/SEM.21/R.12, 13 March 1996, May 1-4, 1996, Cetraro, Italy. 25 pages.

• Rune Bredesen. “Key points in the development of catalytic membrane reactors”. In Proceedings of the 13th International Congress of Chemical and Process Engineering (CHISA’98), CD-ROM of full texts, paper A7.0, 23 pages. Organised by Czech Society of Chemical Engineering, August 23-28, 1998, Praha, Czech Republic

• Rune Bredesen and Hallgeir Klette. Method of manufacturing thin metal membranes. United State Patent 6,086,729 (July 11, 2000)

• Arian Nijmeijer, Henk Kruidhof, Rune Bredesen and Henk Verweij. ”Preparation and properties of hydrothermally stable ?-alumina membranes”. J. Am Ceram. Soc. 84 ?1? (2001) 136-140.

• T. Norby, Y. Larring, "Mixed hydrogen ion - electron conductors for hydrogen permeable membranes", Solid State Ionics, 136-137 (2000) 139-48.

Materials for hydrogen storage.

• M.H. Sørby, H. Fjellvåg, B.C. Hauback, A.J. Maeland, V.A. Yartys: Crystal structure of Th2Al deuterides. J. Alloys and Compounds (2000) 309, 154-164.

• V.A. Yartys, R.V. Denys, B.C. Hauback, H. Fjellvåg, I.I. Bulyk, A.B. Riabov, Y.M. Kalychak: Short hydrogen-hydrogen coupling in novel intermetallic hydrides, RE3Ni3In3D4 (RE = La, Ce and Nd). J. Alloys and Compounds (2002) 330-332, 132-140.

• H.W. Brinks, V.A. Yartys, B.C. Hauback, H. Fjellvåg: Structure and magnetic properties of TbNiAl-based deuterides. J. Alloys and Compounds (2002) 330-332, 169-174.

• B.C. Hauback, H.W. Brinks, H. Fjellvåg: Accurate structure of LiAlD4 studied by combined powder neutron and X-ray diffraction. In press J. Alloys and Compounds (2002).

Hydride batteries

• L.O. Valøen, R. Tunold: The Electrochemical Impedance of Metal Hydride Electrodes. J. Alloys and Compounds (2002) 330-332, 810-815.

• L.O. Valøen, R. Brateng, R. Tunold: Kinetics of Metal Hydride Electrodes when Increasing the Internal Cell Pressure. J. Alloys and Compounds (2002) 330-332, 502-505.

• V.A. Yartys, T. Olavesen, B.C. Hauback, H. Fjellvåg, H.W. Brinks, H.W.: Hexagonal LaNiSnD2 with filled ZrBeSi-type structure. J. Alloys and Compounds (2002) 330-332, 141-145.

Materials for PEM technology

• B. Børresen, G. Hagen, R. Tunold: Hydrogen evolution on RuxTi1-xO2 in 0.5 M H2SO4 Electrochimica Acta, (2002) 47, 1819-1827

• S. Kjelstrup, P.J.S. Vie, D. Bedeaux: Surface Chemistry and electrochemistry of membranes, In: Irreversible thermodynamics of membrane surface transport with application to polymer fuel cells. Marcel Dekker, 1999.

• S. Møller-Holst: Preparation and Evaluation of Electrodes for Solid Polymer Fuel Cells. Denki Kagaku (1996) 64(6), 699-705.

• P.J.S. Vie, M. Paronen, M. Strømgård, E. Rauhala, F. Sundholm,F.: Fuel cell performance of proton irradiated and subsequently sulfonated poly(vinyl fluoride) membranes. In press J. Membrane Science (2002).

• D. Webb, S. Møller-Holst: Measuring individual cell voltages in fuel cell stacks, Journal of Power Sources (2001) 103, 54-60.

Materials for solid oxide fuel cells (SOFC)

• P. Kofstad, R. Bredesen: High Temperature Corrosion in SOFC Environments. Solid State Ionics (1992) 52, 69-75.

• R.J. Aaberg, R. Tunold, M. Mogensen, R.W. Berg, R. Odegard: Morphological changes at the interface of the nickel-yttria stabilized zirconia point electrode. Journal of the Electrochemical Society (1998) 145, 2244-2252.

• T. Norby and Y. Larring, "Concentration and transport of protons in oxides", Current Opinion in Solid State & Materials Science, 2 (1997) 593-99.

• T. Norby, "Solid State Protonic Conductors - Principles, Properties, Progress, and Prospects", Solid State Ionics, 125 (1999) 1-11.

• Y. Larring, T. Norby: "Spinel and perovskite functional layers between Plansee metallic interconnect (Cr-5wt%Fe-1wt%Y2O3) and ceramic (La0.85Sr0.15)0.91MnO3 cathode materials for solid oxide fuel cells", J. Electrochem. Soc., 147 (2000) 3251-56.

• T. Norby, "Fast oxygen ion conductors - from doped to ordered systems", J. Mater. Chem., 11 (2001) 11-18.

• T. Norby, "The promise of protonics" (News and Views), Nature, 410 (2001) 877 878.

Theory and modeling

• O.M. Løvvik, R.A. Olsen: Density functional calculations on hydrogen in palladium-silver alloys. J. Alloys and Compounds (2002) 330-332, 332-337.

• O.M. Løvvik, R.A. Olsen: Adsorption energies and ordered structures of hydrogen on Pd (111) from density-functional periodic calculations. Phys. Rev. B (1998) 58, 10890-10898.

• R. Glöckner, M.S. Islam, T. Norby, "Protons and other defects in BaCeO3 a computational study", Solid State Ionics, 122 (1999) 145-56.

• Vajestoon, P., Vidya, R., Ravindran, P., Kjekshus, A. and Fjellvåg, H. ”Electronic structure and bonding studies on Th2Al and Th2AlH4” Phys. Rev. B 65 (2002)

• Ravindran, P., Vajestoon, P., Vidya, R., Kjekshus, A. and Fjellvåg, H., ”Violation of the 2Å rule for metal hydrides” Phys. Rev. Lett. submitted

Staff and laboratories

Permanent staff (professors, associate professors, scientists)

• Production?
• Materials for hydrogen storage
• Hydride batteries
• Materials for PEM technology
• Materials for solid oxide fuel cells (SOFC)
• Theory and modeling

Post docs

• Production?
• Materials for hydrogen storage
• Hydride batteries
• Materials for PEM technology
• Materials for solid oxide fuel cells (SOFC)
• Theory and modeling

PhD-students

• Production?
• Materials for hydrogen storage
• Hydride batteries
• Materials for PEM technology
• Materials for solid oxide fuel cells (SOFC)
• Theory and modeling

In addition to foreign guest scientists and master-students
Redaktør sekretariat@funmat.no

utviklet av edesign.no 2002