Preparation of LSM–YSZ composite powder for anode of solid oxide electrolysis cell and its activation mechanism

Liang, Minxian; Yu, Bo; Wen, Minru; Chen, Jing; Xu, Jingming; Zhai, Yuchun

doi:10.1016/j.jpowsour.2008.12.132

Cited by 111 publications

(63 citation statements)

References 19 publications

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“…Compared with alkaline and PEM electrolyzers, SOECs consume less electricity as part of the energy needed for water splitting is in the form of heat [5]. Because of their great potential, SOECs have received increasing interest in recent years [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Various materials have been developed to fabricate SOEC for hydrogen production by steam electrolysis [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

An electrochemical model for syngas production by co-electrolysis of H2O and CO2

2012

Journal of Power Sources

165

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Co-electrolysis of CO 2 and H 2 O in a solid oxide electrolyzer cell (SOEC) offers a promising way for syngas production. In this study, an electrochemical model is developed to simulate the performance of an SOEC used for CO 2 /H 2 O co-electrolysis, considering the reversible water gas shift reaction (WGSR) in the cathode. The dusty gas model (DGM) is used to characterize the multi-component mass transport in the electrodes. The modeling results are compared with experimental data from the literature and good agreement is observed. Parametric simulations are performed to analyze the distributions of WGSR and gas composition in the electrode. A new method is proposed to quantify the contribution of WGSR to CO production by comparing the CO fluxes at the cathode-electrolyte interface and at the cathode surface. It is found that the reversible WGSR could contribute to CO production at a low operating potential but consume CO at a high operating potential. In addition, the contribution of WGSR to CO production also depends on the operating temperature and inlet gas composition.

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Section: Introductionmentioning

confidence: 99%

An electrochemical model for syngas production by co-electrolysis of H2O and CO2

2012

Journal of Power Sources

165

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“…Current density variations for the same electrode material systems are due to starting material characteristics, processing, electrode microstructure, absolute humidity input, and flow rates. Figure 16.19 graphically shows data reported in the literature for current densities at V tn between 500 and 900°C along with the range of values for various types of SOEC [46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. The performance of SOEC single cells, like SOFCs, can be improved by using nanoparticles to modify electrode microstructures [61,62].…”

Section: Solid Oxide Electrolysis Cell Technologymentioning

confidence: 98%

“…19 Current densities at thermoneutral voltage reported for various types of SOEC between 500 and 900°C (the bars show the range of values)[46][47][48][49][50][51][52][53][54][55][56][57][58][59][60].…”

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confidence: 99%

Reversible Solid Oxide Fuel Cell Technology for Hydrogen/Syngas and Power Production

Minh¹

2016

Hydrogen Science and Engineering : Materials, Processes, Systems and Technology

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IntroductionWorld energy consumption is projected to grow by about 56% from 2010 to 2040 (from 524 quadrillion to 820 quadrillion British thermal units (Btu)) with consumption increases from all fuel sources (fossil, nuclear, and renewable) and fossil fuels expected to continue supply much of the energy used worldwide (almost 80%) [1]. As use of fossil fuels is projected to increase, world energyrelated CO 2 emissions will grow from 31 billion metric tons in 2010 to 45 billion metric tons in 2040, a 45% increase [1]. Thus, it is expected that future energy systems should be fuel-flexible (flexibility) (to facilitate integration with any type of energy sources) and environmentally compatible (compatibility) (to reduce CO 2 emissions). In addition, such systems should have the characteristics of capability (useful for different functions), adaptability (suitable for various applications and adaptable to local energy needs), and affordability (competitive in costs) (Figure 16.1). Reversible solid oxide fuel cells (RSOFCs), being developed for hydrogen/syngas production and power generation, potentially have all those desired characteristics and, therefore, can serve as a base technology for green, flexible, and cost-competitive future energy systems [2]. This chapter provides an overview of the RSOFC, discusses its hydrogen/syngas production and power generation operations, and reviews the status of the technology and its applications. Reversible Solid Oxide Fuel Cell Overview Operating PrinciplesA RSOFC is a device that can operate efficiently in both fuel cell mode for power generation and electrolysis mode for chemical production. Thus, in fuel cell

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“…LSM-YSZ composite powder was prepared by a lowtemperature in-situ glyci-nitrate combustion method [17]. The weight ratio of YSZ to LSM was controlled at 4:6.…”

Section: Preparation Of Lsm-ysz Anodementioning

confidence: 99%

Microstructural modification of the anode/electrolyte interface of SOEC for hydrogen production

Wang

Zhang

et al. 2012

International Journal of Hydrogen Energy

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Preparation of LSM–YSZ composite powder for anode of solid oxide electrolysis cell and its activation mechanism

Cited by 111 publications

References 19 publications

An electrochemical model for syngas production by co-electrolysis of H2O and CO2

An electrochemical model for syngas production by co-electrolysis of H2O and CO2

Reversible Solid Oxide Fuel Cell Technology for Hydrogen/Syngas and Power Production

Microstructural modification of the anode/electrolyte interface of SOEC for hydrogen production

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