Preparation of Ni–YSZ Cermet through Reduction of NiO–YSZ Ceramic for SOFC Anode

Baity, P.S.N.; Budiana, Budiana; Suasmoro, S.

doi:10.1088/1757-899x/214/1/012029

Cited by 5 publications

(2 citation statements)

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“…By knowing the percentage of density change, we can estimate and design the material with the desired porosity by applying certain percentage of H2 needed. Required density for anode material for gas transportation is approximately 70% [13,14]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Effect of H2/N2 Mixtures on Reduction of Nickel Oxide

Abdullah

Nasri

Zaidi

et al. 2020

MSF

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This paper describes the reduction of nickel oxide under different gas mixture. The influence of gas mixture on phase, density, morphology and pore size of reduced nickel oxide were studied. Nickel oxide pellets sintered at 1400 °C were reduced under various hydrogen-nitrogen gas mixtures, namely 40% H2-60% N2, 60% H2-40% N2, 80% H2-20% N2. Phase identification, density measurement and observation of morphology were conducted on samples before and after reduction process. Under all gas mixtures, nickel oxide was completely reduced to nickel. Density of the samples decreased in the range of 21% to 32% depends on H2 percentage used. Results from the density shows that the higher the H2 gas concentration, the smaller the density changes. Significant change in porosity of the sample before and after reduction was observed. Size of pore after reduction determined by H2 concentration used during reduction where the higher the H2 concentration resulted in large pore size.

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Section: Resultsmentioning

confidence: 99%

Effect of H2/N2 Mixtures on Reduction of Nickel Oxide

Abdullah

Nasri

Zaidi

et al. 2020

MSF

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“…[1][2][3][4] The SOFC features a sintered ceramic electrolyte with high ionic conductivity, such as yttria-stabilized zirconia (YSZ) and gadolinium-doped ceria (GDC). [5][6][7] In recent years, the demand for improvements of the electrochemical performance [8][9][10][11] via cell miniaturization has increased. To enhance the performance, therefore, micropatterning the ceramic electrolyte has been studied as an improvement method because increasing the surface area of the electrolyte can be expected to create a high electrochemical reaction density.…”

Section: Introductionmentioning

confidence: 99%

Fabrication process for micropatterned ceramics via UV-nanoimprint lithography using UV-curable binder

Okabe

Kim

Jiao

et al. 2018

Jpn. J. Appl. Phys.

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Ceramic electrochemical devices, such as solid oxide fuel cell (SOFC), require a high electrochemical reaction density. UV-nanoimprint lithography (UV-NIL) process comprising ceramic particles and a UV-curable resin as the binder was proposed to fabricate a high-aspect-patterned ceramic for SOFC. The proposed method was used to mold ceramic slurry with UV-curable binder that can cure with electrochemically-optimized ceramic particles. Last, the UV-cured ceramic was sintered, whereupon ceramic micropatterns were obtained on a ceramic substrate. The study chose a UV monomer and photo-initiator that would not contaminate SOFC material. The appropriate ratio of the monomer to the photo-initiator were investigated to conduct UV-NIL despite containing high ceramic concentration which absorbs UV wave length. The ratio of UV-curable resin to ceramic particles that resulted in minimal cracks during sintering process was found. Finally, the fabrication of ceramic pillar patterns was demonstrated.

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