The effect of ball milling parameters and Ni concentration on a YSZ-coated Ni composite for a high temperature electrolysis cathode

Hong, Hoon; Chae, Ui-Seok; Choo, Soo-Tae

doi:10.1016/j.jallcom.2006.01.131

Cited by 21 publications

(26 citation statements)

References 21 publications

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“…Alternatively, the porous electrode can be fabricated using colloidal spray deposition, a low-cost thin film deposition technique [98]. Recently, it has been reported that the Ni-YSZ cermet could be fabricated by the high-energy ball milling of Ni and YSZ powders [99,100]. However, it should be mentioned that sintering is still needed to improve the electrical conductivity of the ball milled Ni-YSZ cermet.…”

Section: Cathodementioning

confidence: 99%

Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC)

Leung

2008

International Journal of Hydrogen Energy

661

327

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Section: Cathodementioning

confidence: 99%

Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC)

Leung

2008

International Journal of Hydrogen Energy

661

327

View full text Add to dashboard Cite

“…Also, electrical conductivity of similarly fabricated 40 and 60 vol.% Ni-balance YSZ cermets [18] were compared with that of Cu/YSZ cermets.…”

Section: Methodsmentioning

confidence: 99%

Fabrication and characterization of Cu/YSZ cermet high-temperature electrolysis cathode material prepared by high-energy ball-milling method

Lee

Kang

Kim

et al. 2008

Journal of Alloys and Compounds

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“…Recently, 3D reconstructions of SOFC electrodes have been performed by X-ray computed tomography as well as by focused-ion-beam-coupled scanning electron microscopy (FIB-SEM). [24][25][26] The recently highly improved spatial resolution of the latter method is based on the serial sectioning by FIB and SEM imaging of a sample followed by reconstruction of the SEM micrographs into a single data set, which gives 3D information of the probed volume. Direct observation of a real electrode 3D structure is a key towards the establishment of a reliable relationship between a porous anode microstructure and the cell's power-generation performance.…”

Section: Introductionmentioning

confidence: 99%

Microstructural evaluation of Ni-SDC cermet from a representative 2D image and/or a 3D reconstruction based on a stack of images

Kapun¹,

Marinšek²,

Merzel³

et al. 2017

Mater. Tehnol.

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This work provides an in-depth discussion on the subject of deriving microstructural parameters from a realistic 2D image or a 3D volume reconstruction based on a stack of images. As a convenient model material, a nickel/samaria-doped-ceria (Ni-SDC) cermet synthetized by the citrate-nitrate combustion reaction is tested. Field-emission scanning electron microscopy (FE-SEM) for 2D microstructure evaluation or focused-ion-beam/scanning-electron-microscopy (FIB-SEM) for 3D imaging is used for the cermet characterization. Microstructural parameters, such as the volume ratio of phases, grain morphology, contiguity of phases and triple-point boundary density, are quantitatively evaluated. These microstructural parameters reveal that a 2D microstructural evaluation provides a relatively accurate and quick analytical approach. However, it is shown that a detailed microstructural quantification of the parameters that are closely related to transport phenomena and electrochemical reactions in a porous cermet is only possible through the three-dimensional (3D) quantitative material characterization. Based on the microstructural evaluation, optimization of the Ni-SDC material used is briefly discussed. Keywords: solid-oxide fuel cell, Ni-SDC anode, microstructure, FIB tomography Ni-SDC kermet (nikelj/cerijev oksid dopiran s samarijevim oksidom) je eden izmed najpogosteje uporabljenih anodnih materialov v gorivnih celicah s trdnim elektrolitom (angl. SOFC). Med pripravo materiala sodi tudi kvantitativno vrednotenje mikrostrukturnih parametrov kot so velikost in porazdelitev velikosti zrn, dele`i faz, kontinuitete, gostota trojnih to~k (angl. TPB), gostota materiala, itd. V tem prispevku`elimo primerjati dva razli~na na~ina analiziranja teh parametrov. Prva t.i. 2D metoda temelji na obdelavi slik, posnetih z vrsti~nim elektronskim mikroskopom s poljsko emisijo (SEM). Medtem, ko 3D metoda upo{teva 3D rekonstrukcijo vzorca iz slik s pomo~jo sistema s fokusiranim ionskim sklopom (FIB-SEM). Omenjeni mikrostrukturni parametri razkrivajo, da je 2D pristop razmeroma hiter in natan~en. Vendar se je izkazalo, da je za natan~nej{o kvantitativno analizo mikrostrukture, ki je tesno povezana s prenosom snovi in elektrokemijskimi reakcijami v anodnem materialu, potreben 3D pristop. Metodi sta bili ocenjeni glede na njuno te`avnost izvedbe in~asovno zahtevnost.

show abstract

The effect of ball milling parameters and Ni concentration on a YSZ-coated Ni composite for a high temperature electrolysis cathode

Cited by 21 publications

References 21 publications

Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC)

Technological development of hydrogen production by solid oxide electrolyzer cell (SOEC)

Fabrication and characterization of Cu/YSZ cermet high-temperature electrolysis cathode material prepared by high-energy ball-milling method

Microstructural evaluation of Ni-SDC cermet from a representative 2D image and/or a 3D reconstruction based on a stack of images

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