Selective substitution of Ni by Ti in LaNiO3 perovskites: A parameter governing the oxy-carbon dioxide reforming of methane |
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Authors: | Sreelatha Nuvula T.V. Sagar Durga Kumari Valluri P.S. Sai Prasad |
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Affiliation: | Department of Inorganic and Physical Chemistry, Indian Institute of Chemical Technology, Hyderabad, 500007, India |
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Abstract: | A series of LaNi1?xTixO3 perovskite catalysts varying titanium (x = 0.0, 0.2, 0.4, 0.5, 0.6 and 1.0) are synthesized and investigated using BET, XRD, TPR, TEM, FT-IR and XPS. The catalysts were evaluated for oxy-carbon dioxide reforming of methane at 800 °C under atmospheric pressure maintaining CO2/CH4/O2 ratio 0.8/1.0/0.2. LaNi0.5Ti0.5O3 is showing typical stability with gradual H2 consumption in TPR. The stability of these catalysts is supported by O 1s binding energies wherein it is clearly evident that incorporation of Ti stabilized LaNiO3 generating suitable catalysts in the range of x = 0.4–0.6 with high performance. |
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Keywords: | Oxygen Partial substitution Syngas |
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