Karanwal, Neha Kurniawan, Rizky Gilang Park, Jaeyong Verma, Deepak Oh, Suryun Kim, Seung Min Kwak, Sang Kyu Kim, Jaehoon 2024-01-19T11:03:12Z 2024-01-19T11:03:12Z 2022-06-23 2022-10 0926-3373 https://pubs.kist.re.kr/handle/201004/114540 A one-pot cascade conversion of cellulose to GVL was investigated over bimetallic Ru-Cu deposited on a zeolite Y (Ru-Cu/Z) catalyst. Under supercritical methanol conditions, high-yield (49.8%) cascade conversion of cellulose to GVL was achieved at 250 ?, with an initial H2 pressure of 3.0 MPa and reaction time of 5 h. The Ru-Cu/Z catalyst was synthesized using activated reductive deposition (ARD), which resulted in the selective deposition of Cu nanodomains on Ru nanoparticles, thereby facilitating the dissociative adsorption of H-2. In addition, Lewis and Bronsted acid sites of Cu-doped zeolite Y effectively proceeded to cascade conversion reactions, including alcoholysis, isomerization, dehydration, and acetalization reactions, suppressing humin formation. The bimetallic Ru-Cu/Z catalyst was used in six consecutive runs, with a marginal loss of activity. The structure-performance relationships of the Ru-Cu/Z catalysts synthesized using ARD, incipient wet impregnation, and reduction deposition methods were compared. English Elsevier BV One-pot, cascade conversion of cellulose to γ-valerolactone over a multifunctional Ru-Cu/zeolite-Y catalyst in supercritical methanol Article 10.1016/j.apcatb.2022.121466 1 Applied Catalysis B: Environmental, v.314 Applied Catalysis B: Environmental 314 N scie scopus 000809939800001 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article RAY ABSORPTION-EDGE GAMMA-VALEROLACTONE RUTHENIUM CATALYST COPPER-CATALYSTS OXIDATION-STATE LEVULINIC ACID BIOMASS METAL ADSORPTION GLUCOSE Cellulose γ-Valerolactone Bimetallic Ru-Cu catalyst Zeolite Y One-pot conversion