构建加氢催化剂在石油化工、煤化工、精细化工以及环境工业中具有重要意义。目前，催化剂很难同时实现高效和高选择性，催化选择性的提升通常伴随着活性的显著牺牲。本项目依托本地区丰富的毛竹生物质，通过绿色提取竹纤维素，合成两亲性支链接枝的梳状纤维素作为纳米反应器，利用内层亲水官能团与金属前驱体作用制备表面疏水修饰的催化剂。通过改变纳米反应器的环境、金属组成和配比得到不同的金属及金属/半导体催化剂，选择α,β-不饱和醛/炔烃加氢反应来评价催化剂的性能。采用现代表征技术和理论计算揭示催化剂的结构与性能的关系，进一步优化高效、高选择性和高稳定性加氢催化剂的制备。项目研究成果将为精准构筑特定结构和功能的高效催化剂提供理论和技术支撑，丰富和发展选择加氢催化的科学内涵及应用，拓展纤维素材料的新功能和新应用。

Hydrogenation is among the central themes of petrochemical, coal chemical, fine chemical, environmental industries, and energy industry. For the moment, improving the selectivity and retaining the efficiency of catalysts are essential for industrial processes and remain a great challenge. The selectivity improvement is often accompanied by a significant sacrifice of its activity. Herein, based on the abundant bamboo resources in this region, this project designs amphiphilic comb-like cellulose as the nanoreactor, which is used to synthesize metal/semiconductor nanocomposites modified with surface hydrophobic chains. Several metal and metal-semiconductor nanocatalysts are obtained by varying the environment of the nanoreactor and the composition and ratio regulation of metals. Then, the hydrogenation reaction of α,β-unsaturated aldehyde or alkyne is selected to evaluate the performance of these catalysts. Modern characterization techniques and theoretical calculations are combined to investigate the relationship between the structure and performance of the catalysts, which further optimize the preparation of hydrogenation catalysts with high efficiency, high selectivity, and high stability. The research results will provide the theoretical and technical support for the accurate construction of efficient catalysts with specific structures and functions, enrich and develop the scientific connotation and application of selective hydrogenation catalysis, and expand the new functions and applications of cellulose materials.