Yang, Eun-hyeok Noh, Young Su Hong, Gi Hoon Moon, Dong Ju 2024-01-19T23:33:34Z 2024-01-19T23:33:34Z 2021-09-03 2018-01-01 0920-5861 https://pubs.kist.re.kr/handle/201004/121829 The effect of Sr addition to LaNiO3 perovskite catalysts was studied for the steam-CO2 reforming of methane. Xray diffraction (XRD) patterns indicate that different ionic radii caused distortion of the perovskite lattice and produced alien phases such as La2-xSrxNiO3 +/-delta and Sr0.5La1.5NiO4. Moreover, these different phases affected reduction behavior. The influence of Sr mainly appeared in the steam-CO2 reforming of methane reaction. SrO species adsorbed CO2 during the reaction and produced SrCO3, which has a better ability of eliminating carbon sources by producing La2O2CO3, and by this means, carbon formation was significantly suppressed. However, the addition of Sr species covered the support sites leading to large-sized nickel particles by reducing the interaction between the support and active metals, thus the catalytic activity was decreased by an increase in Sr concentration on the catalysts. Therefore, we recommend using a small amount of Sr in the perovskite-based catalysts to obtain superior resistance to carbon deposition with moderate catalytic activity. English ELSEVIER SCIENCE BV CATALYTIC PERFORMANCE SYNTHESIS GAS SURFACE-PROPERTIES CARBON-DIOXIDE PARTICLE-SIZE NI LA TEMPERATURE LANIO3 MOLYBDENUM Combined steam and CO2 reforming of methane over La1-xSrxNiO3 perovskite oxides Article 10.1016/j.cattod.2017.03.050 1 CATALYSIS TODAY, v.299, pp.242 - 250 CATALYSIS TODAY 299 242 250 scie scopus 000417050000028 2-s2.0-85017358751 Chemistry, Applied Chemistry, Physical Engineering, Chemical Chemistry Engineering Article CATALYTIC PERFORMANCE SYNTHESIS GAS SURFACE-PROPERTIES CARBON-DIOXIDE PARTICLE-SIZE NI LA TEMPERATURE LANIO3 MOLYBDENUM Steam CO2 reforming of methane Sr Perovskite Gas to liquid (GTL)