• 文献标题:   Sulfonated Graphene Oxide as Effective Catalyst for Conversion of 5-( Hydroxymethyl)-2-furfural into Biofuels
  • 文献类型:   Article
  • 作  者:   ANTUNES MM, RUSSO PA, WIPER PV, VEIGA JM, PILLINGER M, MAFRA L, EVTUGUIN DV, PINNA N, VALENTE AA
  • 作者关键词:   biomas, carbon, graphene, heterogeneous catalysi, sulfur
  • 出版物名称:   CHEMSUSCHEM
  • ISSN:   1864-5631 EI 1864-564X
  • 通讯作者地址:   Univ Aveiro
  • 被引频次:   53
  • DOI:   10.1002/cssc.201301149
  • 出版年:   2014

▎ 摘  要

The acid-catalyzed reaction of 5-(hydroxymethyl)-2-furfural with ethanol is a promising route to produce biofuels or fuel additives within the carbohydrate platform; specifically, this reaction may give 5-ethoxymethylfurfural, 5-(ethoxymethyl)furfural diethylacetal, and/or ethyl levulinate (bioEs). It is shown that sulfonated, partially reduced graphene oxide (S-RGO) exhibits a more superior catalytic performance for the production of bioEs than several other acid catalysts, which include sulfonated carbons and the commercial acid resin Amberlyst-15, which has a much higher sulfonic acid content and stronger acidity. This was attributed to the cooperative effects of the sulfonic acid groups and other types of acid sites (e.g., carboxylic acids), and to the enhanced accessibility to the active sites as a result of the 2D structure. Moreover, the acidic functionalities bonded to the S-RGO surface were more stable under the catalytic reaction conditions than those of the other solids tested, which allowed its efficient reuse.