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- W2043929470 abstract "Abstract The co-precipitated Ni/La 2 O 3 catalyst had low total surface area and adsorption–desorption isotherm of nearly type II. The X-ray diffractogram demonstrates that NiO, LaNiO 3 , and La 2 O 3 were the phases present in Ni/La 2 O 3 catalyst. The decomposition of ethane over Ni/La 2 O 3 catalyst has been investigated using temperature-programmed reaction (TPRn). TPRn profile exhibited both low temperature and high temperature range of carbon deposition and indicated the production of H 2 and CH 4 in the gas phase from decomposition of ethane. Methane may be evolved from hydrogenation of surface methyl group from the decay of ethylidyne intermediate. The content, type of carbon, and kinetics of reaction of carbon with oxygen were determined by using temperature-programmed oxidation (TPO). Succeeding the regeneration of Ni/La 2 O 3 catalyst after carbon deposition for three times with steam, this catalyst exhibited the similar TPRn spectra and had still initial activity toward ethane decomposition and carbon nanofibres production. Results of isothermal gasification of carbon nanofibres with steam at temperatures of 823–923 K showed that most of the carbon nanofibres are removed during reaction with steam." @default.
- W2043929470 created "2016-06-24" @default.
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- W2043929470 date "2012-02-01" @default.
- W2043929470 modified "2023-10-01" @default.
- W2043929470 title "Kinetic studies of carbon nanofibre and hydrogen evolution via ethane decomposition over fresh and steam regenerated Ni/La2O3 catalyst" @default.
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- W2043929470 doi "https://doi.org/10.1016/j.apcata.2011.12.036" @default.
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