Ni/YSZ and Ni–CeO2/YSZ anodes prepared by impregnation for solid oxide fuel cells

Qiao, Jinshuo; Sun, Kening; Zhang, Naiqing; Sun, Bing; Kong, Jiangrong; Zhou, Dengwang

doi:10.1016/j.jpowsour.2007.03.006

Cited by 70 publications

(36 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method used to prepare mix-impregnated CeO 2 -Ni/ YSZ anodes has been described in our previous work [17]. A two-layer green tape of YSZ (8 mol.-% Y 2 O 3 ) was made by casting a tape, which was fired at 1,773 K for 6 h to obtain the porous-YSZ/dense-YSZ (p-YSZ/d-YSZ) substrate.…”

Section: Methodsmentioning

confidence: 99%

“…The geometric area of the anode was practically equal to that of the cathode. Ag wire used as lead was connected with the electrodes using Ag paste, and the samples, with a diameter of 1.8 cm, were attached on a zirconia tube using a sealant [17]. 2 into Ni/YSZ by the mix impregnation method could improve anode performance by improving the dispersed state of Ni on YSZ surface.…”

Section: Methodsmentioning

confidence: 99%

“…However, the Ni content in these anodes must be above 25 wt.-% to ensure anode conductivity, which was investigated using H 2 as fuel in ref. [17]. Figure 1 shows the discharge curves of cell-I to cell-III in H 2 and CH 4 at 1,073 K. In humidified H 2 fuel, the cell performance gradually increased with the increase of ceria content, and the peak power densities for the corresponding cells were 209, 315 and 420 mW cm -2 , respectively.…”

Section: Methodsmentioning

confidence: 99%

“…In our pervious work, vacuum impregnation was used to prepare CeO 2 -Ni/YSZ anodes [17]. The anodes obtained by this method did not exhibit Ni sintering at high temperature.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

et al. 2009

View full text Add to dashboard Cite

CeO2‐Ni/YSZ anodes for methane direct oxidation were prepared by the vacuum mix‐impregnation method. By this method, NiO and CeO2 are obtained from nitrate decomposition and high temperature sintering is avoided, which is different from the preparation of conventional Ni‐yttria‐stabilised zirconia(YSZ) anodes. Impregnating CeO2 into the anode can improve the cell performance, especially, when CH4 is used as fuel. The investigation indicated that CeO2‐Ni/YSZ anodes calcined at higher temperature exhibited better stability than those calcined at lower temperature. Under the testing temperature of 1,073 K, the anode calcined at 1,073 K exhibited the best performance. The maximum power density of a cell with a 10 wt.‐%CeO2‐25 wt.‐%Ni anode calcined at 1,073 K reached 480 mW cm–2 after running on CH4 for 5 h. At the same time, high discharge current favoured cell operation on CH4 when using these anodes. No obvious carbon was found on the CeO2‐Ni anode after testing in CH4 as revealed from SEM and corresponding linear EDS analysis. In addition, cell performance decreased at the beginning of discharge testing which was attributed to the anode microstructure change observed with SEM.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…In our pervious work, vacuum impregnation was used to prepare CeO 2 -Ni/YSZ anodes [17]. The anodes obtained by this method did not exhibit Ni sintering at high temperature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

et al. 2009

View full text Add to dashboard Cite

show abstract

“…It is known that incorporation of gadolinium doped ceria (GDC) into conventional thick film Ni-YSZ anodes interfaced with YSZ electrolyte improves SOFC performance when operated with hydrogen or with methane [9][10][11][12][13] although such modification increases the mismatch of thermal properties at the critically important GDC anode/YSZ electrolyte interface, which can result in poor adhesion and cracking of the anode during high temperature treatment [14]. Additionally, despite the favorable properties of Ni/ceria-based oxides in regard to direct electrochemical carbon conversion [15] the reactivity of ceria with YSZ during anode sintering has limited its use [16].…”

Section: Introductionmentioning

confidence: 99%

High performance novel gadolinium doped ceria/yttria stabilized zirconia/nickel layered and hybrid thin film anodes for application in solid oxide fuel cells

García‐García

Beltrán

Yubero

et al. 2017

Journal of Power Sources

View full text Add to dashboard Cite

Magnetron sputtering under oblique angle deposition was used to produce Ni-containing ultra thin film anodes comprising alternating layers of gadolinium doped ceria (GDC) and yttria stabilized zirconia (YSZ) of either 200 nm or 1000 nm thickness. The evolution of film structure from initial deposition, through calcination and final reduction was examined by XRD, SEM, TEM and TOF-SIMS. After subsequent fuel cell usage, the porous columnar architecture of the two-component layered thin film anodes was maintained and their resistance to delamination from the underlying YSZ electrolyte was superior to that of corresponding single component Ni-YSZ and Ni-GDC thin films. Moreover, the fuel cell performance of the 200 nm layered anodes compared favorably with conventional commercially available thick anodes. The observed dependence of fuel cell performance on individual layer thicknesses prompted study of equivalent but more easily fabricated hybrid anodes consisting of simultaneously deposited Ni-GDC and Ni-YSZ, which procedure resulted in exceptionally intimate mixing and interaction of the components. The hybrids exhibited very unusual and favorable I V characteristics, along with exceptionally high power densities at high currents. Their discovery is the principal contribution of the present work.

show abstract

Solid Oxide Fuel Cell Electrode Fabrication by Infiltration

Gunen

2012

Fuel Cell Science and Engineering

View full text Add to dashboard Cite

Ni/YSZ and Ni–CeO2/YSZ anodes prepared by impregnation for solid oxide fuel cells

Cited by 70 publications

References 14 publications

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

High performance novel gadolinium doped ceria/yttria stabilized zirconia/nickel layered and hybrid thin film anodes for application in solid oxide fuel cells

Solid Oxide Fuel Cell Electrode Fabrication by Infiltration

Contact Info

Product

Resources

About

Ni/YSZ and Ni–CeO2/YSZ anodes prepared by impregnation for solid oxide fuel cells

Cited by 70 publications

References 14 publications

Performance of mix‐impregnated CeO2‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

Performance of mix‐impregnated CeO2‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

High performance novel gadolinium doped ceria/yttria stabilized zirconia/nickel layered and hybrid thin film anodes for application in solid oxide fuel cells

Solid Oxide Fuel Cell Electrode Fabrication by Infiltration

Contact Info

Product

Resources

About

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells

Performance of mix‐impregnated CeO₂‐Ni/YSZ Anodes for Direct Oxidation of Methane in Solid Oxide Fuel Cells