期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 11, 期 46, 页码 16627-16640出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.3c05154
关键词
5-hydroxymethylfurfural; etherification; bifunctionalcatalyst; synergistic effects; 5-alkoxymethylfurfurals
This study developed a carbonization-coordination-sulfonation strategy to construct a catalyst with excellent catalytic universality, promoting the etherification of HMF and improving the selectivity of AMFs. The research provides significant references for the production of other biomass-derived furanic ethers.
Biomass-derived 5-alkoxymethylfurfurals (AMFs) are an important kind of high-quality liquid biofuel or diesel additive, which are commonly produced by the etherification of 5-hydroxymethylfurfural (HMF) with alcohols. To produce various AMFs in a convenient and practical manner, the design of high-performance catalysts with preeminent catalytic universalities is a particularly interesting and meaningful task. Herein, we developed a useful carbonization-coordination-sulfonation strategy, which was employed to construct a Lewis-Br & oslash;nsted bifunctional carbonaceous acid catalyst (Zr/GHTC-SO3H). The characterization results demonstrated that Zr/GHTC-SO3H contained strong Lewis acidic sites (Zr4+) and Br & oslash;nsted acidic sites (-SO3H), which could promote the etherification of HMF and then facilitate the formation of AMFs. Simultaneously, Lewis basic sites (O2-) in Zr/GHTC-SO3H were dramatically destroyed and weakened, which could restrict the transfer hydrogenation of HMF and then improve the selectivity of AMFs. Due to the synergistic effects of different active sites, Zr/GHTC-SO3H showed excellent catalytic performance and catalytic universality. When HMF was etherified in methanol, ethanol, n-propanol, isopropanol, n-butanol, and sec-butanol, the corresponding product yield could be up to 91.6, 94.8, 93.3, 94.4, 92.9, and 92.1% under the appropriate reaction conditions, respectively. Moreover, Zr/GHTC-SO3H was also a stable catalyst and displayed satisfactory reusability. In summary, this work presented a special research idea to prepare high-efficiency catalysts for the etherification of HMF to AMFs, which could also provide significant references for the production of other biomass-derived furanic ethers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据