The impact of surface acid species strength on the cellulose structural changes via hydrolysis over solid acid catalyst

IF 3 2区农林科学 Q1 FORESTRY

Wood Science and Technology Pub Date : 2025-06-18 DOI:10.1007/s00226-025-01681-3

Viktor A. Golubkov, Yuriy N. Malyar, Yulia N. Zaitseva, Valentin V. Sychev, Sergey A. Vorobyev, Oxana P. Taran

引用次数: 0

Abstract

The structural changes of cellulose during a hydrolysis over solid acid catalysts (oxidized carbon Sib450 and sulfonic resin Amberlyst-15) were studied. Cellulose structure alterations were characterized via XRD, FTIR and SEM, among other techniques. It was shown that the hydrolysis of cellulose in an aqueous medium over solid catalysts bearing strong and weak acid species proceeds by different mechanisms, at least under a limited mass-transfer condition. The results are interpreted in terms of the different ability of solid acids to form the electrical double layer—a region near the catalyst surface with a high concentration of hydroxonium ions in an aqueous medium.

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在固体酸催化剂上水解纤维素时，表面酸种强度对纤维素结构变化的影响

研究了纤维素在固体酸催化剂（氧化碳Sib450和磺酸树脂Amberlyst-15）催化下水解过程中的结构变化。通过XRD、FTIR和SEM等技术表征了纤维素的结构变化。结果表明，至少在有限传质条件下，纤维素在含强酸和弱酸的固体催化剂上的水解是通过不同的机制进行的。这些结果被解释为固体酸形成电双层的不同能力——在水介质中，靠近催化剂表面的一个区域具有高浓度的氢氧根离子。

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来源期刊

Wood Science and Technology 工程技术-材料科学：纸与木材

CiteScore

5.90

自引率

5.90%

发文量

审稿时长

3 months

期刊介绍： Wood Science and Technology publishes original scientific research results and review papers covering the entire field of wood material science, wood components and wood based products. Subjects are wood biology and wood quality, wood physics and physical technologies, wood chemistry and chemical technologies. Latest advances in areas such as cell wall and wood formation; structural and chemical composition of wood and wood composites and their property relations; physical, mechanical and chemical characterization and relevant methodological developments, and microbiological degradation of wood and wood based products are reported. Topics related to wood technology include machining, gluing, and finishing, composite technology, wood modification, wood mechanics, creep and rheology, and the conversion of wood into pulp and biorefinery products.