Electrochemical performances of Ni 1−x Cu x /SDC cermet anodes for intermediate-temperature SOFCs using syngas fuel

Miyake, Michihiro; Matsumoto, Sigeaki; Iwami, Makoto; Nishimoto, Shinji; Kameshima, Yoshikazu

doi:10.1016/j.ijhydene.2016.05.070

Cited by 27 publications

(13 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The use of Cu as an anode material is known to entail a higher carbon and sulfur tolerance . It has been reported that in Cu‐ceria composite electrodes, the metal phase is simply an electronic conductor and does not play a catalytic role . Moreover, Cu only accounts for 5 wt % of the metallic phase.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

et al. 2016

View full text Add to dashboard Cite

The focus of this study is the measurement and understanding of the sulfur poisoning phenomena of Ni/gadolinium‐doped ceria (CGO) based solid oxide fuel cells (SOFC). Cells with Ni/CGO10 and NiCu5/CGO40 anodes were characterized by using impedance spectroscopy at different temperatures and H2/H2O fuel ratios. The short‐term sulfur poisoning behavior was investigated systematically at temperatures of 800–950 °C, current densities of 0–0.75 A cm−2, and H2S concentrations of 1–20 ppm. A sulfur poisoning mitigation effect was observed at high current loads and temperatures. The poisoning behavior was reversible for short exposure times. It was observed that the sulfur‐affected processes exhibited significantly different relaxation times that depend on the Gd content in the CGO phase. Moreover, it was demonstrated that the capacitance of Ni/CGO10 anodes is strongly dependent on the temperature and gas‐phase composition, which reflects a changing Ce3+/Ce4+ ratio.

show abstract

Section: Methodsmentioning

confidence: 99%

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Therefore, study the catalytic effect of such materials is highly desirable to obtain the overall high and stable performance of device. In previous study it is reported that Nickel-Copper (Ni-Cu) alloy could not only help to reduce carbon deposition at anodes, but due to low melting temperature its use is limited [6,14]. In addition, Palladium-Nickel (Pd-Ni) composites anode showed favorable tolerance to carbon deposition however severe carbon deposition was still observed due to larger amount of Ni-oxide [15].…”

Section: Introductionmentioning

confidence: 99%

Catalytic study of efficient nanocomposites {Ni_0.5 Zn_0.5−x Cex -oxides electrodes} for natural gas-fed fuel cells

Tayyab

Rehman

Shakir

et al. 2020

Mater. Res. Express

View full text Add to dashboard Cite

Highly catalytic active anode materials are one of the scorching zones in recent solid oxide fuel cells (SOFCs). In order to develop high performance SOFCs compatible anode materials are extremely required. In this work, Ni 0.5 Zn 0.5−x Ce x -oxides (NZC-oxide) nanocomposite anode material is synthesized by employing facile, low cost wet chemical technique. The phase structure before and after CH 4 environment is studied by x-ray diffraction (XRD) and Raman spectroscopy. However, no significant structural phase change is observed in Ni 0.5 Zn 0.3 Ce 0.2 -oxides after CH 4 treatment. Additional characterizations are investigated by UV-visible spectroscopy, Fourier transform infrared spectroscopy and Scanning electron microscopy (SEM). The dc electrical conductivities are measure by four probe method. The ideal and suitable Ni 0.5 Zn 0.3 Ce 0 . 2 -oxides among all nanocomposites using as anode in fuel cell devices, show maximum power density of 500 mWcm −2 with open circuit voltage (OCV) of 1.0 V at 600°C. By empowering enhanced catalytic assets of Ni 0.5 Zn 0.3 Ce 0.2 -oxides nanocomposite anode may be useful for fuel cell applications.

show abstract

“…Fuel cells have many merits, such as diversity of fuel options, being environmentally friendly and having high energy efficiency [1,2,3,4,5,6,7,8]. BaCeO 3 and SrCeO 3 -based perovskite oxides have excellent protonic conductivities under hydrogen- or water-containing atmosphere at 400–1000 °C [9,10,11,12,13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Yb-Doped BaCeO3 and Its Composite Electrolyte for Intermediate-Temperature Solid Oxide Fuel Cells

Jiang

Wang

2019

Materials

View full text Add to dashboard Cite

BaCe0.9Yb0.1O3−α was prepared via the sol-gel method using zirconium nitrate, ytterbium trioxide, cerium nitrate and barium acetate as raw materials. Subsequently, it reacted with the binary NaCl~KCl salt to obtain BaCe0.9Yb0.1O3−α-NaCl~KCl composite electrolyte. The structure, morphology, conductivity and fuel cell performance of the obtained samples were investigated. Scanning electron microscope (SEM) images showed that BaCe0.9Yb0.1O3−α and NaCl~KCl combined with each other to form a homogeneous 3-D reticulated structure. The highest power density and conductivity of BaCe0.9Yb0.1O3−α-NaCl~KCl was 393 mW·cm−2 and 3.0 × 10−1 S·cm−1 at 700 °C, respectively.

show abstract

Electrochemical performances of Ni 1−x Cu x /SDC cermet anodes for intermediate-temperature SOFCs using syngas fuel

Cited by 27 publications

References 31 publications

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

Catalytic study of efficient nanocomposites {Ni_0.5 Zn_0.5−x Cex -oxides electrodes} for natural gas-fed fuel cells

Yb-Doped BaCeO3 and Its Composite Electrolyte for Intermediate-Temperature Solid Oxide Fuel Cells

Contact Info

Product

Resources

About

Electrochemical performances of Ni 1−x Cu x /SDC cermet anodes for intermediate-temperature SOFCs using syngas fuel

Cited by 27 publications

References 31 publications

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

Evaluation of the Effect of Sulfur on the Performance of Nickel/Gadolinium‐Doped Ceria Based Solid Oxide Fuel Cell Anodes

Catalytic study of efficient nanocomposites {Ni0.5 Zn0.5−x Cex -oxides electrodes} for natural gas-fed fuel cells

Yb-Doped BaCeO3 and Its Composite Electrolyte for Intermediate-Temperature Solid Oxide Fuel Cells

Contact Info

Product

Resources

About

Catalytic study of efficient nanocomposites {Ni_0.5 Zn_0.5−x Cex -oxides electrodes} for natural gas-fed fuel cells