02322nas a2200313   4500008004100000022001400041245010700055210006900162260011000231300001400341490000700355520118000362653002901542653001401571653002301585653002001608653001801628653002201646653001601668653002801684653003001712653002301742653001101765100002301776700001801799700002701817700003301844856013101877       2012                        eng d  a0376-471000aCarbon dioxide reforming of methane over ruthenium substituted strontium titanate perovskite catalysts0 aCarbon dioxide reforming of methane over ruthenium substituted s  aDR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATION-NISCAIRcSEP  a1339-13470 v513 a<p>Strontium titanate (SrTiO3) doped with varying amounts of ruthenium (7.9, 15.6 and 31 wt%) have been prepared by the citrate gel synthesis method. Structural and textural characterizations reveal that at lower concentrations, a major part of Ru is incorporated in the lattice of SiTiO3. The content of surface Ru (outside lattice) increases with increasing amounts of the doped Ru. The surface Ru reduced at lower temperatures compared to Ru incorporated into the lattice. The reduction of the lattice substituted Ru occurs only at temperatures above the collapse of the perovskite structure. The catalyst sample with 7.9 wt% of Ru shows good conversions in the dry reforming of methane with CO2. The conversion of CO2 is in excess compared to methane under the studied reaction conditions. As a result, H-2/CO ratio of the product gases which should have been equivalent to unity is lower than the stoichiometric value. This ratio is particularly low when lower reaction temperatures (873-973 K) were used. Similar was the case when high space velocities were used. Low methane conversion and reverse water gas shift reaction are the causes for the low H-2/CO ratios.</p>10aCarbon dioxide reforming10aCatalysts10aCitrate gel method10aDoped catalysts10aDry reforming10aMethane reforming10aPerovskites10aReverse water gas shift10aRuthenium doped catalysts10aStrontium titanate10aSyngas1 aGurav, Hanmant, R.1 aBobade, Richa1 aDas, Vineetha, Lakshmi1 aChilukuri, Satyanarayana, V.  uhttps://library.ncl.res.in/content/carbon-dioxide-reforming-methane-over-ruthenium-substituted-strontium-titanate-perovskite-001816nas a2200349   4500008004100000022001400041245008300055210006900138260011000207300001200317490000700329520066400336653002901000653001401029653001101043653001801054653002701072653001401099653002201113653001701135653001101152100001801163700001801181700001601199700001601215700001701231700003001248700002901278700002101307700002301328856011501351       2014                        eng d  a0376-471000aMethane reforming with carbon dioxide over La-Ni-x-Ce1-x mixed oxide catalysts0 aMethane reforming with carbon dioxide over LaNixCe1x mixed oxide  aDR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATION-NISCAIRcFEB  a478-4830 v533 a<p>La-Ni-x-Ce1-x mixed oxide (0 &lt;= x &lt;= 1) catalysts have been hydrothermally prepared, characterized by physico-chemical techniques and evaluated for CO2 reforming of methane. High conversions are achieved for both methane and carbon dioxide over the LaNi0.6Ce0.4O3 catalyst tested under the conditions of CO2/CH4/N-2 ratio of 80/80/80. (total flow rate = 240 mL/min), space velocity of 28,800 h(-1) and at a temperature of 800 degrees C. The H-2/CO ratio in the syngas is stable at 0.93 +/- 0.02. Exchanging Ni with Ce, rather than with La as reported in the literature, appears to be a better option for the improved performance of the catalysts.</p>10aCarbon dioxide reforming10aCatalysts10aCerium10aDry reforming10aHydrothermal synthesis10aLanthanum10aMethane reforming10aMixed oxides10aNickel1 aSagar, T., V.1 aSreelatha, N.1 aHanmant, G.1 aUpendar, K.1 aLingaiah, N.1 aRao, Kamaraju, Seetha Ram1 aSatyanarayana, C., V. V.1 aReddy, I., A. K.1 aPrasad, P., S. Sai  uhttps://library.ncl.res.in/content/methane-reforming-carbon-dioxide-over-la-ni-x-ce1-x-mixed-oxide-catalysts-0