TY - JOUR
T1 - Bimetallic NiAg supported on aminopropyl-functionalized periodic mesoporous organosilica as a reusable catalyst for CO2 conversion to value-added chemicals
AU - Abdullah, Iman
AU - Chandra, Patrik
AU - Krisnandi, Yuni Krisyuningsih
N1 - Publisher Copyright:
© 2024 The Author(s)
PY - 2024/11
Y1 - 2024/11
N2 - Transforming CO2 into more valuable chemicals has gained great interest due to greenhouse gas and climate change related issues. In this study, we performed CO2 hydrogenation using a bimetallic nickel-silver catalyst supported on periodic mesoporous organosilica (NiAg/NH2-pr-Ph-PMO). The NH2pr-Ph-PMO was prepared via a co-condensation method, and NiAg was was incorporated using a simple wet impregnation process. Physicochemical properties of the catalyst were thoroughly characterized using FTIR, XRD, SEM-EDX, TEM, and BET-BJH. The synthesized NiAg/NH2pr-Ph-PMO exhibited excellent properties, including a large surface area (793.5 m2/g) and uniform metal distribution. The optimal conditions for CO2 hydrogenation found in this study were 225 °C, 2 bar, and a CO2/H2 ratio of 1:5. Under these conditions, conversion of CO2 reached 38.34 % with 86.89 % selectivity towards formaldehyde production. Furthermore, NiAg/NH2pr-Ph-PMO exhibits fine catalytic stability with the CO2 conversion maintained above 35 % after 4 reaction cycles. FTIR analysis indicates no significant structural damage on the used catalyst, highlighting its robustness. This study showcases the excellent performance of the novel catalyst in converting CO2 into more valuable chemicals.
AB - Transforming CO2 into more valuable chemicals has gained great interest due to greenhouse gas and climate change related issues. In this study, we performed CO2 hydrogenation using a bimetallic nickel-silver catalyst supported on periodic mesoporous organosilica (NiAg/NH2-pr-Ph-PMO). The NH2pr-Ph-PMO was prepared via a co-condensation method, and NiAg was was incorporated using a simple wet impregnation process. Physicochemical properties of the catalyst were thoroughly characterized using FTIR, XRD, SEM-EDX, TEM, and BET-BJH. The synthesized NiAg/NH2pr-Ph-PMO exhibited excellent properties, including a large surface area (793.5 m2/g) and uniform metal distribution. The optimal conditions for CO2 hydrogenation found in this study were 225 °C, 2 bar, and a CO2/H2 ratio of 1:5. Under these conditions, conversion of CO2 reached 38.34 % with 86.89 % selectivity towards formaldehyde production. Furthermore, NiAg/NH2pr-Ph-PMO exhibits fine catalytic stability with the CO2 conversion maintained above 35 % after 4 reaction cycles. FTIR analysis indicates no significant structural damage on the used catalyst, highlighting its robustness. This study showcases the excellent performance of the novel catalyst in converting CO2 into more valuable chemicals.
KW - CO
KW - Hydrogenation
KW - Mesoporous organosilica
KW - Nickel
KW - Silver
UR - http://www.scopus.com/inward/record.url?scp=85210541359&partnerID=8YFLogxK
U2 - 10.1016/j.jscs.2024.101954
DO - 10.1016/j.jscs.2024.101954
M3 - Article
AN - SCOPUS:85210541359
SN - 1319-6103
VL - 28
JO - Journal of Saudi Chemical Society
JF - Journal of Saudi Chemical Society
IS - 6
M1 - 101954
ER -