Degradation and Durability of Electrodes of Solid Oxide Fuel Cells

Chen, Kongfa

doi:10.1002/9783527644261.ch7

Cited by 8 publications

(2 citation statements)

References 375 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The steam produced within the electrode layer, in turn, suppresses the catalytic cracking of methane and carbon deposition. Nevertheless, the performance and stability of Ni–YSZ-based cermet anodes are critically dependent upon the composition and microstructure of the anode, supply of oxygen ions by applying the current, ratio of methane/steam, etc …”

Section: Resultsmentioning

confidence: 99%

“…Nevertheless, the performance and stability of Ni-YSZ based cermet anodes is critically dependent on the composition and microstructure of anode, supply of oxygen ions by applying current, ratio of methane to steam, etc. 24 Stability of the tubular SOFCs in wet H 2 and wet CH 4 was tested under a constant current of 500 mA cm -2 at 800 o C. In the case of running on hydrogen, the cell is more or less stable.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Feasibility of Direct Utilization of Biomass Gasification Product Gas Fuels in Tubular Solid Oxide Fuel Cells for On-Site Electricity Generation

Chen¹,

Zhang

Ai³

et al. 2015

Energy Fuels

Self Cite

View full text Add to dashboard Cite

Biomass is one of the most abundant and cheap renewable energy sources and gasification product gases from the pyrolysis process of biomass such as mallee wood and wheat straw contain typically 20-27% H 2 and small amount of CO and CH 4 (8-13%). Here, preliminary results on the performance of Ni/Y 2 O 3-ZrO 2 cermet anode-supported tubular solid oxide fuel cells (SOFCs) for the electricity generation from gasification product gases are presented. Two product gases derived from mallee wood and wheat straw are used as the fuels. The tubular SOFCs deliver a maximum power density over 576 mW cm-2 at 800 o C, close to the power density based on the equivalent amount of pure H 2 or CH 4 fuel. The power density is affected by the flow rate of product gas, but there are no significant differences of power output among the product gas sources used. However, the cell performance decreases gradually and the degradation in the electricity generation performance of the tubular SOFC is most likely due to the presence of impurities such as sulphur and chlorine-containing compounds in the biomass feedstock. The results demonstrate the feasibility of the

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Feasibility of Direct Utilization of Biomass Gasification Product Gas Fuels in Tubular Solid Oxide Fuel Cells for On-Site Electricity Generation

Chen¹,

Zhang

Ai³

et al. 2015

Energy Fuels

Self Cite

View full text Add to dashboard Cite

show abstract

Perovskites and Related Mixed Oxides for SOFC Applications

Chuang

Zhang

2015

Perovskites and Related Mixed Oxides

View full text Add to dashboard Cite

Infiltration of SOFC Stacks: Evaluation of the Electrochemical Performance Enhancement and the Underlying Changes in the Microstructure

et al. 2015

View full text Add to dashboard Cite

Experimental SOFC stacks with 10 SOFCs (LSM‐YSZ/YSZ/Ni‐YSZ) were infiltrated with CGO and Ni‐CGO on the air and fuel side, respectively in an attempt to counter degradation and improve the output. The electrochemical performance of each cell was characterized (i) before infiltration, (ii) after infiltration on the cathode side, and (iii) after the infiltration of the anode side. A significant performance enhancement was observed after the infiltration with CGO on the cathode, while the infiltration of the anode side with Ni‐CGO had no significant effect on the electrochemical performance. After testing the cells were characterized by SEM and TEM/EELS. A thin layer of CGO nanoparticles around the LSM‐YSZ back bone structure was found after infiltration. On the anode side nano sized Ni particles were found embedded in a CGO layer formed around the Ni‐YSZ structure. EELS analysis showed that the oxidation state of the Ce ions is identical on the air and the fuel side.

show abstract

Degradation and Durability of Electrodes of Solid Oxide Fuel Cells

Cited by 8 publications

References 375 publications

Feasibility of Direct Utilization of Biomass Gasification Product Gas Fuels in Tubular Solid Oxide Fuel Cells for On-Site Electricity Generation

Feasibility of Direct Utilization of Biomass Gasification Product Gas Fuels in Tubular Solid Oxide Fuel Cells for On-Site Electricity Generation

Perovskites and Related Mixed Oxides for SOFC Applications

Infiltration of SOFC Stacks: Evaluation of the Electrochemical Performance Enhancement and the Underlying Changes in the Microstructure

Contact Info

Product

Resources

About