Ni and metal aluminate mixtures for solid oxide fuel cell anode supports

Kwak, Bu Ho; Youn, Hyun Ki; Chung, Jong Shik

doi:10.1016/j.jpowsour.2008.09.009

Cited by 13 publications

(3 citation statements)

References 26 publications

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“…The resulting highly catalytically active Ni NPs can extract H 2 efficiently from fuel at the electrode. 44,45 Nickel aluminate spinels are prepared via many methods including solid-state reaction, 35,36,38,46−48 sol−gel processing, 49,50 ultrasound irradiation-assisted precursor processing, 51 and ion exchange in zeolites. 52,53 The most widely used method is solid-state reaction where mixtures of the individual metal oxides are cosintered.…”

Section: Introductionmentioning

confidence: 99%

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Resettable Heterogeneous Catalyst: (Re)Generation and (Re)Adsorption of Ni Nanoparticles for Repeated Synthesis of Carbon Nanotubes on Ni–Al–O Thin Films

Liang

Sato

et al. 2018

ACS Appl. Nano Mater.

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Liquid-feed flame spray pyrolysis (LF-FSP) of selected metalloorganics provides [NiO]0.25[Al2O3]0.75 and [NiO]0.5[Al2O3]0.5 spinel nanopowders (NPs) without aggregation and with good stoichiometric control. Both compositions were processed to thin films as a first step in preparing Ni:Al2O3 nanocomposite films for catalytic synthesis of CNTs. NPs dispersed in polymer were cast giving 30 ± 10 μm green films that were debindered (370 °C), sintered at 1000–1500 °C/air, and then heated at 1000–1100 °C in H2/N2 5:95 to generate Ni particles as catalyst sites. These Ni particles promote the growth of CNTs. The CNTs were then oxidatively removed coincident with regeneration of the [NiO]1–x [Al2O3] x surfaces. Thereafter, reduction, CNT syntheses, and catalyst regeneration were repeated two times more. The quality and quantity of CNTs were the same after each cycle. This represents what we believe is a new, general approach to catalyst recycling/regeneration.

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Section: Introductionmentioning

confidence: 99%

“…NiAl 2 O 4 is an attractive candidate anode support for SOFC because it exhibits autogenerated catalysis due to the formation of Ni under reducing conditions. The resulting highly catalytically active Ni NPs can extract H 2 efficiently from fuel at the electrode. , …”

Section: Introductionmentioning

confidence: 99%

Resettable Heterogeneous Catalyst: (Re)Generation and (Re)Adsorption of Ni Nanoparticles for Repeated Synthesis of Carbon Nanotubes on Ni–Al–O Thin Films

Liang

Sato

et al. 2018

ACS Appl. Nano Mater.

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“…In this time we focus on the Ni-MgAl 2 O 4 cermets as nickel-metal aluminate cermets to high mechanical strength and resistance against carbon deposition. If nickel-metal aluminate cermets are applied as anode support, they can reduce the cost of raw materials and improve the mechanical stability in a hydrocarbon atmosphere [1]. The electrical conductivities of the Ni-MgAl 2 O 4 cermets under reducing condition were measured depending on amount of nickel in the samples.…”

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confidence: 99%