...; published online May 2, 2017. Assoc. Editor: Dirk Henkensmeier. 10 02 2016 28 03 2016 carbon dioxide (CO 2 ) electrolysis carbonate bicarbonate electrochemical separation (pump) anion exchange membrane (AEM) The threat of global climate change has brought considerable...

...M. S. Sohal; J. E. O’Brien; C. M. Stoots; V. I. Sharma; B. Yildiz; A. Virkar Idaho National Laboratory (INL) is performing high-temperature electrolysis research to generate hydrogen using solid oxide electrolysis cells (SOECs). The project goals are to address the technical and degradation issues...

...Zhenwei Wang; Masashi Mori The steam electrolysis performance of a Ni-based electrode-supported tubular cell with a Sc 2 O 3 -stabilized ZrO 2 electrolyte was evaluated at 650°C for various concentrations of H 2 and O 2 in the supply gases. It was found that an increase in the concentration...

..., or in the case of pure hydrogen, as fuel gas, by electrolysis. For these generating processes energy is required. This generally leads to a deterioration of SOFC-system efficiencies. At state of the art combined processes, the reformation or gasification reactor and the SOFC are usually separated. The heat...

... within the fuel cell is handled by treatment of the gas diffusion layer with a Teflon emulsion to create the proper balance of hydrophobic and hydrophilic pores. The single cell unit is tested in either fuel cell mode or electrolysis mode for different catalyst loadings. Polarization curves for the URFC...

...Carl M. Stoots; James E. O’Brien; J. Stephen Herring; Joseph J. Hartvigsen This paper presents results of recent experiments on simultaneous high-temperature electrolysis (coelectrolysis) of steam and carbon dioxide using solid-oxide electrolysis cells. Coelectrolysis is complicated by the fact...

... gas. In this article, the degradation behaviors of Ni-YSZ∕YSZ ( 0.5 mm thick ) ∕ La 0.6 Sr 0.4 Mn O 3 − δ cell sample caused by exhaust of hydrocarbon fuel were studied by solid oxide electrolysis cell method. I ‐ V curve and impedance spectra measurements were carried out to investigate...

... concentration to the cathode. During periods of low electricity demand, the fuel cell is operated using reformed gas and air, and water electrolysis operation is also performed. When the electric power load is large, gases stored in cylinders are supplied to the fuel cell for operation. Using the proposed...

...J. E. O’Brien; C. M. Stoots; J. S. Herring; J. Hartvigsen An experimental study is under way to assess the performance of solid-oxide cells operating in the steam electrolysis mode for hydrogen production over a temperature range of 800 - 900 ° C . Results presented in this paper were obtained from...

...S. Obara; K. Kudo Improvements in efficiency of a fuel-cell-powered vehicle have been studied using water electrolysis as the energy storage mechanism. Three methods are proposed for this purpose: 1. The reformer and fuel cell are divided into two or more units, and the maximum output of each unit...