GETT Fuel Cell AB

Östermalm, Sweden

GETT Fuel Cell AB

Östermalm, Sweden
SEARCH FILTERS
Time filter
Source Type

Raza R.,KTH Royal Institute of Technology | Raza R.,COMSATS Institute of Information Technology | Abbas G.,COMSATS Institute of Information Technology | Abbas G.,Bahauddin Zakariya University | And 4 more authors.
Journal of Fuel Cell Science and Technology | Year: 2011

Oxide based two phase composite electrolyte (Ce0.9 Gd 0.1 O2 - Y2 O3) was synthesized by coprecipitation method. The nanocomposite electrolyte showed the significant performance of power density 785 mW cm-2 and higher conductivities at relatively low temperature 550°C. Ionic conductivities were measured with ac impedance spectroscopy and four-probe dc method. The structural and morphological properties of the prepared electrolyte were investigated by scanning electron microscope (SEM). The thermal stability was determined with differential scanning calorimetry. The particle size that was calculated with Scherrer formula, 15-20 nm, is in a good agreement with the SEM and X- ray diffraction results. The purpose of this study is to introduce the functional nanocomposite materials for advanced fuel cell technology to meet the challenges of solid oxide fuel cell. © 2011 American Society of Mechanical Engineers.


Stingaciu M.,University of Stockholm | Zhu B.,KTH Royal Institute of Technology | Singh M.,GETT Fuel Cell AB | Johnsson M.,University of Stockholm
RSC Advances | Year: 2012

Porous single-component fuel cells, made up of a single layer of mixed ionic and electronic conductivity, have been fabricated using spark plasma sintering (SPS) and their performances were tested in methanol. It was possible to optimize the current/power output by changing the sintering conditions which directly influence the grain size, porosity, grain contacts and conducting paths for the fabricated cells. © 2012 The Royal Society of Chemistry.


Qin H.,KTH Royal Institute of Technology | Qin H.,Zhejiang University | Zhu Z.,KTH Royal Institute of Technology | Zhu Z.,GETT Fuel Cell AB | And 10 more authors.
Energy and Environmental Science | Year: 2011

A low-temperature solid oxide fuel cell system was developed to use bioethanol and glycerol as fuels directly. This system achieved a maximum power density of 215 mW cm-2 by using glycerol at 580 °C and produced a great impact on sustainable energy and the environment. © 2011 The Royal Society of Chemistry.


Imran S.K.,KTH Royal Institute of Technology | Raza R.,KTH Royal Institute of Technology | Raza R.,COMSATS Institute of Information Technology | Abbas G.,KTH Royal Institute of Technology | And 2 more authors.
Journal of Fuel Cell Science and Technology | Year: 2011

Bio-ethanol based fuel cell is an energy source with a promising future. The low temperature solid oxide fuel cell fed by direct bio-ethanol is receiving considerable attention as a clean and highly efficient for the production of both electricity and high grade waste heat. The comparison of fuel cell performance with different metal-oxide based electrodes was investigated. The power densities of 584 mW cm -2 and 514 mW cm -2 at 520 °C and 570 °C respectively were found. The effect of electrode catalyst function, ethanol concentration on the electrical performance was investigated at different temperature ranged in between 300 °C-600 °C. The effect of deposited carbon on the electrode was investigated by energy-dispersive X-ray spectroscopy and scanning electron microscope after testing the cell with bio-ethanol. © 2011 American Society of Mechanical Engineers.


Raza R.,KTH Royal Institute of Technology | Raza R.,COMSATS Institute of Information Technology | Zhu B.,KTH Royal Institute of Technology | Zhu B.,GETT Fuel Cell AB | Fransson T.H.,KTH Royal Institute of Technology
Journal of Fuel Cell Science and Technology | Year: 2011

Recent research results show that homogeneity and microstructure are very important parameters for the development of low cost materials with better performance for fuel cell applications. This research effort has been contributed in the development of low temperature solid oxide fuel cell (LTSOFC) material and technology as well as applications for polygeneration. The microstructure and electrochemical analyses were conducted. We found a series of new electrode materials which can run solid oxide fuel cell at 300-600°C range with high performances, e.g., a high power density output of 980 mW cm -2 was obtained at 570°C. The fuel cell electrodes were prepared from metal oxide materials through a solid state reaction and then mixed with doped ceria. The obtained results have many advantages for the development of LTSOFCs for polygeneration. The nanostructure of the anode has been studied by high-resolution electron microscopy, the crystal structure and lattice parameters have also been studied by X-ray diffraction. The electrical conductivity of the composite anode was studied by electrochemical impedance spectra. Copyright © 2011 by ASME.


Raza R.,KTH Royal Institute of Technology | Raza R.,COMSATS Institute of Information Technology | Zhu B.,KTH Royal Institute of Technology | Zhu B.,GETT Fuel Cell AB | Fransson T.H.,KTH Royal Institute of Technology
Journal of Fuel Cell Science and Technology | Year: 2011

Recent research results show that homogeneity and microstructure are very important parameters for the development of low cost materials with better performance for fuel cell applications. This research effort has been contributed in the development of low temperature solid oxide fuel cell (LTSOFC) material and technology as well as applications for polygeneration. The microstructure and electrochemical analyses were conducted. We found a series of new electrode materials which can run solid oxide fuel cell at 300-600°C range with high performances, e.g., a high power density output of 980 mW cm -2 was obtained at 570°C. The fuel cell electrodes were prepared from metal oxide materials through a solid state reaction and then mixed with doped ceria. The obtained results have many advantages for the development of LTSOFCs for polygeneration. The nanostructure of the anode has been studied by high-resolution electron microscopy, the crystal structure and lattice parameters have also been studied by X-ray diffraction. The electrical conductivity of the composite anode was studied by electrochemical impedance spectra. © 2011 American Society of Mechanical Engineers.


Abbas G.,Bahauddin Zakaria University | Abbas G.,COMSATS Institute of Information Technology | Abbas G.,GETT Fuel Cell AB | Chaudhry M.A.,Bahauddin Zakaria University | And 7 more authors.
Nanoscience and Nanotechnology Letters | Year: 2012

Composite electrodes of Cu 0.16Ni 0.27Zn 0.37Ce 0.16Gd 0.04 (CNZGC) oxides have been successfully synthesized by solid state reaction method as anode material for low temperature solid oxide fuel cell (LTSOFC). These electrodes are characterized by XRD followed by sintering at various time periods and temperatures. Particle size of optimized composition was calculated 40-85 nm and sintered at 800 °C for 4 hours. Electrical conductivity of 4.14 S/cm was obtained at a temperature of 550 °C by the 4-prob DC method. The activation energy was calculated 4×10-2 eV at 550 °C. Hydrogen was used as fuel and air as oxidant at anode and cathode sides respectively. I-V/I-P curves were obtained in the temperature range of 400-550 °C. The maximum power density was achieved for 570 mW/cm2 at 550 °C. Copyright © 2012 American Scientific Publishers.


Qin H.,KTH Royal Institute of Technology | Qin H.,Hangzhou Dianzi University | Zhu B.,KTH Royal Institute of Technology | Zhu B.,GETT Fuel Cell AB | And 5 more authors.
International Journal of Hydrogen Energy | Year: 2012

In this paper, an integration design of membrane electrode assemblies in low temperature solid oxide fuel cells (LTSOFCs) is accomplished by using a mixed ionic-electronic conductor. The mixed ionic-electronic conductor is a composite material, LiNiCuZn oxides, Gd2O3 and Sm-doped CeO2 composited with Na2CO3 (LiNiCuZn oxides-NGSDC), which consists of ionic conductor, n-type and p-type semiconductors. The multi-phase composite material can also be used in single layer fuel cell (SLFC) to replace single-phase materials. A SLFC using the LiNiCuZn oxides-NSGDC composite exhibits an OCV of 1.05 V and maximum power density of 800 mW cm-2, which is comparable to the cell performance of conventional LTSOFCs and much higher than that of SLFC reported before. The reasons leading to the good performance are porous structure of electrode and the matching of ionic conductor and semiconductor. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.


Jing Y.,KTH Royal Institute of Technology | Jing Y.,GETT Fuel Cell AB | Qin H.,KTH Royal Institute of Technology | Liu Q.,KTH Royal Institute of Technology | And 3 more authors.
Journal of Nanoscience and Nanotechnology | Year: 2012

Low temperature solid oxide fuel cell (LTSOFC, 300-600 °C) is developed with advantages compared to conventional SOFC (800-1000 °C). The electrodes with good catalytic activity, high electronic and ionic conductivity are required to achieve high power output. In this work, a LiNiCuZn oxides as anode and cathode catalyst is prepared by slurry method. The structure and morphology of the prepared LiNiCuZn oxides are characterized by X-ray diffraction and field emission scanning electron microscopy. The LiNiCuZn oxides prepared by slurry method are nano Li 0.28Ni 0.72O, ZnO and CuO compound. The nano-crystallites are congregated to form ball-shape particles with diameter of 800-1000 nm. The LiNiCuZn oxides electrodes exhibits high ion conductivity and low polarization resistance to hydrogen oxidation reaction and oxygen reduction reaction at low temperature. The LTSOFC using the LiNiCuZn oxides electrodes demonstrates good cell performance of 1000 mW cm -2 when it operates at 470 °C. It is considered that nano-composite would be an effective way to develop catalyst for LTSOFC. Copyright © 2012 American Scientific Publishers All rights reserved.


Raza R.,KTH Royal Institute of Technology | Raza R.,COMSATS Institute of Information Technology | Zhu B.,KTH Royal Institute of Technology | Zhu B.,GETT Fuel Cell AB
Journal of Nanoscience and Nanotechnology | Year: 2011

Microwave sintering is a very interesting subject, which provides an alternative method to overcome problems faced with conventional sintering. This process is very efficient and only requires a few minutes. In this paper, nanocomposite electrodes (Cu 0.15Ni 0.85-GDC) were sintered at 700 °C for 10 mins in a single mode 2.45 GHz microwave oven by the solid state reaction method. The composition influence and the sintering methods on the as-obtained powder were characterized by XRD, SEM and TEM. It was observed that excellent sintering took place. Excellent fuel cell performance was achieved with microwave sintering compared to samples sintered using conventional sintering. Electrochemical analysis was carried out using AC Impedance technique. This paper reports a new approach to develop a microwave sintered based nanocomposite material, which is more efficient on time and energy. This method can gain significant economical benefits compared to conventional sintered materials for applications in low temperature solid oxide fuel cells (LTSOFC). Copyright © 2011 American Scientific Publishers.

Loading GETT Fuel Cell AB collaborators
Loading GETT Fuel Cell AB collaborators