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首页> 外文期刊>RSC Advances >Cellulose-derived carbon bearing -Cl and -SO3H groups as a highly selective catalyst for the hydrolysis of cellulose to glucose
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Cellulose-derived carbon bearing -Cl and -SO3H groups as a highly selective catalyst for the hydrolysis of cellulose to glucose

机译：带有-Cl和-SO3H基团的纤维素衍生碳原子，作为纤维素水解为葡萄糖的高选择性催化剂

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摘要

solid acid catalyst (HA-CC-SO3H) was synthesized by the sulfonation of amorphous carbon derived from the carbonization of dilute hydrochloric acid-pretreated microcrystalline cellulose. It was found that Cl- ions are grafted onto the cellulose-derived carbon and affect the composition and structure of the carbon carrier during the carbonization process. The electrons of the aromatic carbons transfer to -Cl and -SO3H groups, which influence their electronic state. In the cellulose hydrolysis process, the active electronic states make the -Cl groups more liable to form hydrogen bonds with cellulose, and the -SO3H groups with stronger acidity easily break the glycosidic bonds of cellulose to produce glucose. The HA-CC-SO3H catalyst exhibits excellent glucose selectivity (95.8%) at a moderate temperature (155 degrees C) under hydrothermal conditions.
机译：固体酸催化剂（HA-CC-SO3H）是通过将稀盐酸预处理的微晶纤维素碳化而得的无定形碳磺化而合成的。已发现Cl-离子接枝到纤维素衍生的碳上，并在碳化过程中影响碳载体的组成和结构。芳族碳的电子转移到-Cl和-SO3H基团，这会影响它们的电子状态。在纤维素水解过程中，活性电子态使-Cl基更易于与纤维素形成氢键，而具有更强酸性的-SO3H基很容易破坏纤维素的糖苷键以产生葡萄糖。 HA-CC-SO3H催化剂在水热条件下的中等温度（155摄氏度）下表现出出色的葡萄糖选择性（95.8％）。

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