The effect of yttrium on the high temperatureoxidation resistance of some Fe-Cr base alloys in carbon dioxide

Francis, J.M.; Whitlow, W.H.

doi:10.1016/s0010-938x(65)80026-9

Cited by 86 publications

(13 citation statements)

References 4 publications

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“…The thin Y-coating layer decreased the rate constant of the oxidation but did not significantly alter the oxides' properties such as composition and porosity. The Y additives slowing down oxidation rate is consistent with the observation of Y in an Fe-25Cr alloy [15]. Although the oxidation kinetics provide some insight on the oxide scale behavior in a short period of time (1000 h), tests with longer exposure time are necessary to get good lifetime prediction.…”

Section: Gravimetry Of Scw-exposed Samplessupporting

confidence: 81%

Corrosion behavior of a ferritic/martensitic steel HCM12A exposed to harsh environments

Tan

Machut

Sridharan

et al. 2007

Journal of Nuclear Materials

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Section: Gravimetry Of Scw-exposed Samplessupporting

confidence: 81%

Corrosion behavior of a ferritic/martensitic steel HCM12A exposed to harsh environments

Tan

Machut

Sridharan

et al. 2007

Journal of Nuclear Materials

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“…Yttrium is a rare-earth element that has recently attracted large interest for catalytic applications. As reported by Francis and Whitlow [33] yttrium oxides show high temperature oxidation resistance in the presence of carbon dioxide. Additionally, yttrium oxide has been studied as a support for DRM catalysts [34,35].…”

Section: Introductionmentioning

confidence: 62%

Yttrium promoted Ni-based double-layered hydroxides for dry methane reforming

Świrk

Gálvez

Motak

et al. 2018

Journal of CO2 Utilization

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Yttrium modified Ni-based double-layered hydroxides were tested as novel catalysts in dry methane reforming. The catalysts were characterized by XRF, BET analysis, XRD, TPR-H 2 , TPD-CO 2 , TGA/DSC-MS, H 2 chemisorption and TEM. Co-precipitation with yttrium (III) nitrate hexahydrate resulted in increased specific surface area, smaller Ni crystallite size, enhanced reducibility, and higher distribution of weak and medium basic sites as compared to Y-free material. The DRM catalytic tests, carried out in the temperature range of 850-600 ºC, led to a significant improvement of activity, with the 1.5 wt % Y-promoted catalyst being the most efficient in converting both CH 4 and CO 2. Moreover, the 10 h test at 700 ºC further confirmed enhanced stability for this HTNi-Y1.5 catalyst. Higher CO 2 conversion than CH 4 conversion and less CO compared to H 2 proves that side reactions are occurring simultaneously.

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“…Yttrium has received considerable attention as a promising promoter for many chemical processes [28][29][30][31][32][33], including dry reforming of methane [34][35][36][37]. Recently, yttrium promotion (0.2-0.6 wt%) was examined by us over Ni-based catalysts, which were additionally modified with Zr [33].…”

Section: Introductionmentioning

confidence: 99%

Effect of low loading of yttrium on Ni-based layered double hydroxides in CO2 reforming of CH4

Świrk

Motak

Grzybek

et al. 2018

Reac Kinet Mech Cat

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Ni/Al/Mg layered double hydroxides (LDHs) modified with low loading of yttrium (0.2 and 0.4 wt%) were used in dry reforming of methane at 700 °C. Physicochemical characterization, such as: X-ray fluorescence, N2 sorption, X-ray diffraction, temperature programmed reduction in H2, temperature programmed desorption of CO2, H2 chemisorption, thermogravimetry analysis coupled by mass spectrometry and Raman spectroscopy, showed that the introduction of low loadings of yttrium lead to a smaller Niº crystallite size, a decrease in reducibility of the nickel, and a decreased number of basic sites in the modified Ni/LDHs catalysts. The doping with 0.4 wt% of Y improves catalytic activity resulting in higher CH4 and CO2 conversions at 700 °C, i.e. ca. 84 % and ca. 87 %, respectively with no clear deactivation observed after 5 h run. The increase in CO2 conversion and a decrease of H2/CO ratio indicates that side reactions occurs during DRM.

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The effect of yttrium on the high temperatureoxidation resistance of some Fe-Cr base alloys in carbon dioxide

Cited by 86 publications

References 4 publications

Corrosion behavior of a ferritic/martensitic steel HCM12A exposed to harsh environments

Corrosion behavior of a ferritic/martensitic steel HCM12A exposed to harsh environments

Yttrium promoted Ni-based double-layered hydroxides for dry methane reforming

Effect of low loading of yttrium on Ni-based layered double hydroxides in CO2 reforming of CH4

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