Comparative study of Ni loading methods towards superior CO2 conversion over Ni/SBA-15

• Main Authors: Syahida Nasuha, Bukhari, C. C., Chong, Herma Dina, Setiabudi, N., Ainirazali, M. A., A. Aziz, L. P., Teh, N. H. R., Annuar
• Format: Conference or Workshop Item
• Language: English; English
• Published: 2018
• Subjects: TP Chemical technology
• Online Access: http://umpir.ump.edu.my/id/eprint/21964/1/7.%20Comparative%20study%20of%20ni%20loading%20methods%20towards.pdf; http://umpir.ump.edu.my/id/eprint/21964/2/7.1%20Comparative%20study%20of%20ni%20loading%20methods%20towards.pdf; http://umpir.ump.edu.my/id/eprint/21964/
• Institution: Universiti Malaysia Pahang

A series of Ni/SBA-15 catalysts were successfully synthesized via conventional wet impregnation method (C-IM), P123-assisted impregnation method (P123-IM) and ultrasonic-assisted impregnation technique (US-IM) methods. The obtained results confirmed that the impregnation methods significantly influenced the physio-chemical properties of Ni/SBA-15 catalysts, which subsequently influenced the catalytic performances of catalysts. The catalytic performance of catalysts followed the order of Ni/SBA-15(P123-IM) > Ni/SBA-15(US-IM) > Ni/SBA-15(C-IM), indicating the superior performance of Ni/SBA-15(P123-IM) towards CO2 methanation (CO2 conv.: 91.1 % , CH4 selec.: 97.7 %) and CO2 dry reforming (CO2 conv.: 82.6 % , H2/CO: 1.23). An excellent catalytic performance of Ni/SBA-15(P123-IM) owing to its favorable textural properties; homogenous Ni dispersion, smaller NiO crystallite size (12.1 nm), and higher concentration of metal-support interaction. P123-IM method successfully synthesized favorable Ni/SBA-15 for superior CO2 conversion.