Ru-Containing Magnetically Recoverable Catalysts: A Sustainable Pathway from Cellulose to Ethylene and Propylene Glycols

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• 作者：Oleg V. Manaenkov ; Joshua J. Mann ; Olga V. Kislitza ; Yaroslav Losovyj ; Barry D. Stein ; David Gene Morgan ; Maren Pink ; Olga L. Lependina ; Zinaida B. Shifrina ; Valentina G. Matveeva ; Esther M. Sulman ; Lyudmila M. Bronstein
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：August 24, 2016
• 年：2016
• 卷：8
• 期：33
• 页码：21285-21293
• 全文大小：475K
• 年卷期：0
• ISSN：1944-8252

文摘

Biomass processing to value-added chemicals and biofuels received considerable attention due to the renewable nature of the precursors. Here, we report the development of Ru-containing magnetically recoverable catalysts for cellulose hydrogenolysis to low alcohols, ethylene glycol (EG) and propylene glycol (PG). The catalysts are synthesized by incorporation of magnetite nanoparticles (NPs) in mesoporous silica pores followed by formation of 2 nm Ru NPs. The latter are obtained by thermal decomposition of ruthenium acetylacetonate in the pores. The catalysts showed excellent activities and selectivities at 100% cellulose conversion, exceeding those for the commercial Ru/C. High selectivities as well as activities are attributed to the influence of Fe₃O₄ on the Ru⁰/Ru⁴⁺ NPs. A facile synthetic protocol, easy magnetic separation, and stability of the catalyst performance after magnetic recovery make these catalysts promising for industrial applications.