Evaluation of the high temperature electrolysis of steam to produce hydrogen

Shin, Youngjoon; Park, Won-Seok; Chang, Jonghwa; Park, Jongkuen

doi:10.1016/j.ijhydene.2006.10.028

Cited by 125 publications

(59 citation statements)

References 4 publications

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“…As the reaction has a positive entropy, the equilibrium will be displaced towards the products for high temperatures. The term T · ΔS increases with increasing temperature, thus increasing the contribution of thermal energy to the total needs for the water splitting reaction [66]. Therefore, the part of heat, which can be used for the reaction is higher, meaning that the production costs of hydrogen are decreased [58].…”

Section: High Temperature Pem Electrolysis Advantages and Drawbacksmentioning

confidence: 99%

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Nikiforov¹,

Christensen²,

Petrushina³

et al. 2012

Electrolysis

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Section: High Temperature Pem Electrolysis Advantages and Drawbacksmentioning

confidence: 99%

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Nikiforov¹,

Christensen²,

Petrushina³

et al. 2012

Electrolysis

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“…1,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26 Typical SOEC consists of an oxygen ion conducting a solid electrolyte such as YSZ sandwiched between two electrodes; steam-H 2 electrode (which is the cathode in SOEC) made typically of nickel + YSZ oxygen electrode (which is the anode in SOEC) made typically of an electron (hole) conducting perovskite such as Sr-doped LaMnO 3 (LSM) mixed with YSZ. The cell is typically operated over a temperature range from 800 to 900°C.…”

Section: Degradation In Soecmentioning

confidence: 99%

Modeling Degradation in Solid Oxide Electrolysis Cells

Sohal¹,

Virkar²,

Rashkeev³

et al. 2010

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“…Generally, the cost of water electrolysis is higher than that of fossil fuel reforming [13]. The overall hydrogen production efficiency is only around 27% using current methods [14].…”

Section: Hydrogen/syngas Production Optionsmentioning

confidence: 99%

“…High temperature electrolysis of steam (HTES) uses a combination of thermal energy and electricity to split water. From a thermodynamics and kinetics standpoint, the high temperatures can make activation over-potentials lower and increase the mobility of the oxygen ion [2,[14][15][16]. A feasible combined system efficiency of 46% at 850_C for HTES has been calculated previously [14].…”

Section: Hydrogen/syngas Production Optionsmentioning

confidence: 99%

“…From a thermodynamics and kinetics standpoint, the high temperatures can make activation over-potentials lower and increase the mobility of the oxygen ion [2,[14][15][16]. A feasible combined system efficiency of 46% at 850_C for HTES has been calculated previously [14]. In addition to the increase in efficiency, a high-temperature steam electrolysis system supported by a nuclear power plant is able to produce hydrogen without the greenhouse gas emissions associated with hydrocarbon processes, while also providing a means to store nuclear power [7].…”

Section: Hydrogen/syngas Production Optionsmentioning

confidence: 99%

See 1 more Smart Citation

Solid oxide electrochemical reactor science.

Sullivan

Stechel²,

Moyer

et al. 2010

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This LDRD involved a collaboration between Sandia and the Colorado School of Mines (CSM) ins solid-oxide electrochemical reactors targeted at solid oxide electrolyzer cells (SOEC), which are the reverse of solid-oxide fuel cells (SOFC). SOECs complement Sandia's efforts in thermochemical production of alternative fuels. An SOEC technology would co-electrolyze carbon dioxide (CO 2 ) with steam at temperatures around 800 ºC to form synthesis gas (H 2 and CO), which forms the building blocks for a petrochemical substitutes that can be used to power vehicles or in distributed energy platforms. The effort described here concentrates on research concerning catalytic chemistry, charge-transfer chemistry, and optimal cell-architecture. technical scope included computational modeling, materials development, and experimental evaluation. The project engaged the Colorado Fuel Cell Center at CSM through the support of a graduate student (Connor Moyer) at CSM and his advisors (Profs. Robert Kee and Neal Sullivan) in collaboration with Sandia. 4 ACKNOWLEDGMENTSThis report is based largely upon the thesis written by Connor Moyer for his degree of Master of Science (Engineering) at Colorado School of Mines, which this LDRD helped fund. This project also leveraged modeling results from Dr. Huayang Zhu at Colorado School of Mines, who was primarily funded by the Office of Naval Research via an RTC grant (N00014-05-1-03339).5

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Evaluation of the high temperature electrolysis of steam to produce hydrogen

Cited by 125 publications

References 4 publications

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Modeling Degradation in Solid Oxide Electrolysis Cells

Solid oxide electrochemical reactor science.

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