Ni infiltrated Sr2Fe1.5Mo0.5O6-δ-Ce0.8Sm0.2O1.9 electrode for methane assisted steam electrolysis process

Wang, Yao; Xu, Jiahui; Meng, Xinyang; Liu, Tong; Chen, Fanglin

doi:10.1016/j.elecom.2017.04.018

Cited by 37 publications

(19 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The performance of LCT-Rh for MACE was also benchmarked against an SFM double perovskite, which constitutes one of the most promising ceramic electrodes reported in literature to date for similar high temperature electrolysis processes [24][25][26] . SFM was also mixed with GDC at 60/40wt.% ratio and assembled in a ScCeSZ-based symmetrical configuration for the experimental tests.…”

Section: Comparison To Reference Systemsmentioning

confidence: 99%

“…The concept of the simultaneous cathodic co-electrolysis and the anodic fuel oxidation has been principally examined in the case of methane (Fig. 1a) due to its low cost and abundancy, as well as the possible formation of value-added chemicals from an important greenhouse gas [16][17][18][21][22][23][24][25][26][27][28][29][30] : The Gibbs energy (electrical power demands) and consequently, the reversible potential (E o =ΔGR/nF) of the aforementioned reaction schemes is considerably lower than CO2-H2O coelectrolysis in a conventional electrolyzer (Fig. 1b).…”

Section: Introductionmentioning

confidence: 99%

“…The latter constraint rules out Ni-based cermets due to their limited coking tolerance, particularly in the absence of steam. As a result, the POM-assisted co-electrolysis process concept has been mainly investigated over Sr2Fe1.5Mo0.5O6-δ (SFM) perovskites [24][25][26] . To boost the limited electrocatalytic performance of these perovskites Ni or Ru infiltration has been examined 26,29 .…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the POM-assisted co-electrolysis process concept has been mainly investigated over Sr2Fe1.5Mo0.5O6-δ (SFM) perovskites [24][25][26] . To boost the limited electrocatalytic performance of these perovskites Ni or Ru infiltration has been examined 26,29 . Although, metal infiltration enhances the catalytic activity and electronic conductivity of the perovskite, the long-term performance is questionable because of the intense metal agglomeration at elevated temperatures.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Symmetrical Exsolution of Rh Nanoparticles in Solid Oxide Cells for Efficient Syngas Production from Greenhouse Gases

et al. 2019

View full text Add to dashboard Cite

Carbon dioxide and steam solid oxide co-electrolysis is a key technology for exploiting renewable electricity to generate syngas feedstock for the Fischer-Tropsch synthesis. The integration of this process with methane partial oxidation in a single cell can eliminate or even reverse the electrical power demands of co-electrolysis, while simultaneously producing syngas at industrially attractive H2/CO ratios. Nevertheless, this system is rather complex, and requires catalytically active and coke tolerant electrodes. Here, we report on a low-substitution rhodium-titanate perovskite (La0.43Ca0.37Rh0.06Ti0.94O3) electrode for the process, capable of exsolving high Rh nanoparticle populations, and assembled in a symmetrical solid oxide cell configuration. By introducing dry methane to the anode compartment, the electricity demands are impressively decreased, even allowing syngas and electricity cogeneration. To provide further insight on Rh nanoparticles role on methane-to-syngas conversion, we adjusted their size and population by altering the reduction temperature of the perovskite. Our results exemplify how the exsolution concept can be employed to efficiently exploit noble metals for activating low-reactivity greenhouse gases in challenging energy related applications.

show abstract

Section: Comparison To Reference Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Symmetrical Exsolution of Rh Nanoparticles in Solid Oxide Cells for Efficient Syngas Production from Greenhouse Gases

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Ru infiltration also exhibited an excellent power density during partial oxidation of methane assisted steam electrolysis operation. [29][30][31] Therefore, in this work, Ru nano-particles are infiltrated into the SFM-SDC symmetrical cells to evaluate the electro-catalytic effect on the polarization resistance and modify the microstructure of the anode, which is largely affected by the presintering temperatures. Furthermore, Ru infiltrated single cells are fabricated to investigate the influence of Ru infiltration on electrochemical performance and the redox stability when exposed to H 2 and syngas fuels.…”

Section: Resultsmentioning

confidence: 99%

Advanced Ru‐Infiltrated Perovskite Oxide Electrodes for Boosting the Performance of Syngas Fueled Solid Oxide Fuel Cell

Zhang

et al. 2022

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

A promising Sr 2 Fe 1.5 Mo 0.5 O 6-δ -Ce 0.8 Sm 0.2 O 1.9 (SFM-SDC) anode material is modified by infiltrating Ru catalytic particles to enhance the electrochemical performance for H 2 /CO electrooxidation. The electrode polarization resistance (R p ), which is considerably affected by the pre-sintering temperature, shows the lowest value of 0.67 Ω cm 2 at 800 °C in 3 % H 2 O humidified hydrogen for bare SFM-SDC electrode calcined at 1050 °C.Furthermore, the R p value is favorably diminished to 0.22 Ω cm 2 after Ru infiltration. Meanwhile, the output power density exhibits a significant increment, proving the excellent electrocatalytic properties of Ru nano-particles. Additionally, the single cell with infiltration presents a good short-term stability even after redox operation.

show abstract

Tailoring SOFC Electrode Microstructures for Improved Performance

Connor

Yue

Savaniu

et al. 2018

Advanced Energy Materials

190

108

View full text Add to dashboard Cite

The key technical challenges that fuel cell developers need to address are performance, durability, and cost. All three need to be achieved in parallel; however, there are often competitive tensions, e.g., performance is achieved at the expense of durability. Stability and resistance to degradation under prolonged operation are key parameters. There is considerable interest in developing new cathodes that are better able to function at lower temperature to facilitate low cost manufacture. For anodes, the ability of the solid oxide fuel cell (SOFC) to better utilize commonly available fuels at high efficiency, avoid coking and sulfur poisoning or resistance to oxidation at high utilization are all key. Optimizing a new electrode material requires considerable process development. The use of solution techniques to impregnate an already optimized electrode skeleton, offers a fast and efficient way to evaluate new electrode materials. It can also offer low cost routes to manufacture novel structures and to fine tune already known structures. Here impregnation methodologies are discussed, spectral and surface characterization are considered, and the recent efforts to optimize both cathode and anode functionalities are reviewed. Finally recent exemplifications are reviewed and future challenges and opportunities for the impregnation approach in SOFCs are explored.

show abstract

Ni infiltrated Sr2Fe1.5Mo0.5O6-δ-Ce0.8Sm0.2O1.9 electrode for methane assisted steam electrolysis process

Cited by 37 publications

References 28 publications

Symmetrical Exsolution of Rh Nanoparticles in Solid Oxide Cells for Efficient Syngas Production from Greenhouse Gases

Symmetrical Exsolution of Rh Nanoparticles in Solid Oxide Cells for Efficient Syngas Production from Greenhouse Gases

Advanced Ru‐Infiltrated Perovskite Oxide Electrodes for Boosting the Performance of Syngas Fueled Solid Oxide Fuel Cell

Tailoring SOFC Electrode Microstructures for Improved Performance

Contact Info

Product

Resources

About