A chitin-based single-atom platinum catalyst for hydrogenation of unsaturated aldehydes and ketones, its preparation method and application
By preparing chitin-based single-atom platinum catalysts, the problems of uncontrollable catalyst pore size and material complexity in the selective hydrogenation reaction of α,β-unsaturated aldehydes and ketones were solved, achieving high-yield and high-selectivity hydrogenation effects.
CN118403660BActive Publication Date: 2026-07-17无锡绿能电合科技有限公司
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 无锡绿能电合科技有限公司
- Filing Date
- 2024-04-01
- Publication Date
- 2026-07-17
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Figure CN118403660B_ABST
Abstract
This invention provides a method for preparing a chitin-based single-atom platinum catalyst for the hydrogenation of unsaturated aldehydes and ketones, comprising the following steps: First, an alkaline chitin nanofiber dispersion is mixed with an emulsifier, reacted for a certain time, and then demulsified. The product is washed, replaced with an organic solvent, and dried to obtain chitin nanofiber powder. Second, the chitin nanofiber powder is mixed with chloroplatinic acid in water at a certain ratio, dispersed, and then separated into solid and liquid phases. The solid product is replaced with an organic solvent and dried to obtain chitin nanofiber powder impregnated with a platinum precursor. Finally, the chitin nanofiber powder impregnated with the platinum precursor is subjected to low-temperature heat treatment under an inert atmosphere to obtain a chitin-based single-atom platinum catalyst. The chitin-based single-atom platinum catalyst prepared by this invention has advantages such as high selectivity and high activity. When applied to the hydrogenation reaction of unsaturated aldehydes and ketones, the yield can reach over 90%, showing broad prospects for promotion and application.
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