Shin, Seol A. Alizadeh Eslami, Ali Noh, Young Su Song, Hyun-tae Kim, Hyun Dong Ghaffari Saeidabad, Nasim Moon, Dong Ju 2024-01-19T16:30:38Z 2024-01-19T16:30:38Z 2021-09-02 2020-11 2073-4344 https://pubs.kist.re.kr/handle/201004/117951 Recently, the dry reforming of methane (DRM) has received much attention as a conversion technology of greenhouse gases. Ni-based catalysts supported on ternary metal oxide composite (ZrTiAlOx) were prepared to improve the coke resistance properties in the DRM (CH4:CO2 = 1) at low temperature. The ZrTiAlOx supports with different ratios of Zr/Ti were prepared through the modified Pechini sol-gel method, and then the Ni was impregnated on the synthesized support via the incipient wetness impregnation method. Considering the Zr/Ti ratios, different catalytic activity and durability in the DRM were identified. The Ni/ZrTiAlOx catalyst with Zr/Ti of 2 exhibited enhanced coke inhibition property compared to the others at low temperature DRM for 50 h. The catalysts with a high Zr/Ti ratio under the same condition were rapidly deactivated, while the catalyst with a low Zr/Ti ratio showed deficient activity. It was found from temperature-programmed surface reactions (TPSR) and DRIFTS (Diffuse Reflectance Infrared Fourier Transform Spectroscopy) analysis that the addition of Ti has led in to higher catalytic stability at Zr/Ti = 2, which could be as a result of oxygen vacancies generated by the ternary metal oxides. Ni/ZrTiAlOx catalyst with ratio of Zr/Ti = 2 showed high stability and good catalytic activity towards DRM for the production of syngas. English Multidisciplinary Digital Publishing Institute (MDPI) Preparation and Characterization of Ni/ZrTiAlOx Catalyst via Sol-Gel and Impregnation Methods for Low Temperature Dry Reforming of Methane Article 10.3390/catal10111335 1 Catalysts, v.10, no.11 Catalysts 10 11 Y scie scopus 000592734800001 2-s2.0-85096608820 Chemistry, Physical Chemistry Article GAS CH4 HYDROGEN-PRODUCTION CARBON-DIOXIDE NI STEAM CO2 SYNGAS ACTIVATION SUPPORT Ni-based catalyst dry reforming of methane Strong Metal-Support Interaction (SMSI) Sol-Gel