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首页> 外文期刊>ACS applied materials & interfaces >Ru-Containing Magnetically Recoverable Catalysts: A Sustainable Pathway from Cellulose to Ethylene and Propylene Glycols
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Ru-Containing Magnetically Recoverable Catalysts: A Sustainable Pathway from Cellulose to Ethylene and Propylene Glycols

机译：含钌的磁性可回收催化剂：从纤维素到乙烯和丙二醇的可持续途径

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摘要

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 Ru-0/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.
机译：由于前体具有可再生性，因此对增值化学品和生物燃料进行生物质加工备受关注。在这里，我们报告了含Ru的磁性可回收催化剂的发展，该催化剂可用于纤维素氢解为低级醇，乙二醇（EG）和丙二醇（PG）。通过在中孔二氧化硅孔中掺入磁铁矿纳米颗粒（NPs），然后形成2 nm Ru NPs，来合成催化剂。后者是通过孔中乙酰丙酮钌的热分解获得的。催化剂在100％纤维素转化率下表现出出色的活性和选择性，超过了商业化的Ru / C。高选择性和活性归因于Fe3O4对Ru-0 / Ru4 + NP的影响。简便的合成方案，容易的磁分离以及磁回收后催化剂性能的稳定性使这些催化剂在工业应用中很有前景。

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