Kim, Seong-rye Choi, Ye-Na Park, Kwangho Lee, Hong-Gyung Lee, Kyung Rok Park, Hongjin Yoon, Sungho Lee, Kwan Young Jung, Kwang-Deog 2025-03-23T12:30:40Z 2025-03-23T12:30:40Z 2025-03-19 2025-03 0888-5885 https://pubs.kist.re.kr/handle/201004/152098 A Mg-promoted Cu/ZnO/ZrO2/Al2O3 catalyst (CZZAM) was developed for methanol synthesis via CO2 hydrogenation. Incorporating magnesium into the catalyst precursor improved the durability, addressing stability issues in our previously reported Cu/ZnO/ZrO2/Al2O3 (CZZA) catalysts. Comparative evaluations showed that CZZAM outperforms commercial Cu/ZnO/Al2O3 (CZA) and CZZA catalysts, achieving a maximum methanol space-time yield of 0.99 gMeOH<middle dot>gcat -1<middle dot>h-1 with a methanol selectivity of 50.6% and a yield of 12.7% under 24,000 mL<middle dot>gcat -1<middle dot>h-1 at 260 degrees C and 5 MPa. In a 60 h test, CZZAM exhibited only a 2.8% decrease in methanol productivity compared to over 9 to 10% declines for CZA and CZZA. Characterizations revealed that Mg addition enhanced Cu nanoparticle dispersion and structural stability. These findings demonstrate that Mg incorporation effectively enhances activity and stability in Cu/ZnO/ZrO2/Al2O3 catalysts for CO2 hydrogenation to methanol. English American Chemical Society Magnesium-Promoted Catalytic Stability of the Cu/ZnO/ZrO2/Al2O3-MgO Catalyst in CO2 Hydrogenation to Methanol Article 10.1021/acs.iecr.4c04518 1 Industrial & Engineering Chemistry Research, v.64, no.11, pp.5903 - 5911 Industrial & Engineering Chemistry Research 64 11 5903 5911 N scie scopus 001437907200001 2-s2.0-86000152470 Engineering, Chemical Engineering Article CU PERFORMANCE MALACHITE INSIGHTS