文献类型：期刊文献

英文题名：Selective hydrodeoxygenation of aromatics to phenols by Pt nanoparticles supported on La-modified Al2O3

作者：Zhang, Kaili[1,2] Yao, Hongyi[1] Zhang, Jiawei[2] Tao, Ran[2] Xu, Hao[2] Yu, Haitao[2] Yang, Jing[2] Zhang, Ning[2] Wang, Kui[2] Jiang, Jianchun[1,2]

第一作者：Zhang, Kaili

通信作者：Zhang, KL[1];Jiang, JC[1];Zhang, KL[2];Jiang, JC[2]

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China

年份：2025

外文期刊名：CATALYSIS SCIENCE & TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001595283800001)】；

基金：This work was supported by National Natural Science Foundation of China (22408175), National Key R&D Program of China (2024YFD2200800) and the Research Start-up Funding of Nanjing Forestry University (163030305).

语种：英文

摘要：Phenols are pivotal chemicals produced mainly from fossil raw materials. The selective hydrodeoxygenation of lignin derivatives shows great potential in the production of phenolic chemicals, but achieving high yield remains a challenge. Herein, we report a catalyst of Pt nanoparticles (NPs) supported on La-modified alumina (Pt/La-Al2O3), which can highly selectively fracture the ether C-O(R) bond in guaiacol without hydrogenation of the benzene ring, with a phenol selectivity of over 90.7% and also demonstrates broad applicability to various other substrates with different substituents. The reaction mechanism was investigated by control experiments and in situ diffuse reflection infrared Fourier transform (DRIFT). The synergistic interactions between Pt nanoparticles and La atoms enable the demethylation of aromatic compounds without hydrogenation of the benzene ring, and thus, desired phenols were generated. This work offers new insights for the design and construction of high-efficiency hydrodeoxygenation catalysts to achieve the synthesis of phenols.