{"title":"Selective hydrogenation of 5-hydroxymethylfurfural over bidentate phosphine protected Pdn nanoclusters","authors":"Jie Tang, Chao Liu, Xiaorui Liu, Yaning Han, Tingting Ge, Cuiping Yu, Daxin Liang, Jing Xu, Jiahui Huang","doi":"10.1039/d4cy00303a","DOIUrl":null,"url":null,"abstract":"The synthesis of high activity atomically precise nanoclusters is crucial to understand structure–property relationships in environmentally friendly reactions. However, Pd nanoclusters have been rarely reported due to their susceptibility to oxidization. In this work, Pd<small><sub><em>n</em></sub></small> nanoclusters protected by bis[2-(diphenylphosphino)phenyl] ether (DPEphos) have been synthesized and fully characterized by electrospray ionization mass spectrometry (ESI-MS) and HAADF-STEM. In the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF), which is an important candidate for liquid fuels, the supported Pd<small><sub><em>n</em></sub></small> nanoclusters show great catalytic performance with a yield of 94.1% under mild conditions. The theoretical investigations reveal that, in the phosphate protected Pd<small><sub><em>n</em></sub></small> system, the desorption of DMF is the rate-determining step. And compared with the Pd catalyst coordinated with PPh<small><sub>3</sub></small>, the Pd<small><sub><em>n</em></sub></small> catalyst protected by DPEphos has a modest desorption ability of DMF, leading to the high yield of DMF. This work presents the synthesis and application of a Pd<small><sub><em>n</em></sub></small> catalyst with bidentate phosphine ligands, which could contribute to the development of rational design of effective catalysts in biomass and energy conversion.","PeriodicalId":66,"journal":{"name":"Catalysis Science & Technology","volume":null,"pages":null},"PeriodicalIF":4.4000,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Science & Technology","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d4cy00303a","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The synthesis of high activity atomically precise nanoclusters is crucial to understand structure–property relationships in environmentally friendly reactions. However, Pd nanoclusters have been rarely reported due to their susceptibility to oxidization. In this work, Pdn nanoclusters protected by bis[2-(diphenylphosphino)phenyl] ether (DPEphos) have been synthesized and fully characterized by electrospray ionization mass spectrometry (ESI-MS) and HAADF-STEM. In the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-dimethylfuran (DMF), which is an important candidate for liquid fuels, the supported Pdn nanoclusters show great catalytic performance with a yield of 94.1% under mild conditions. The theoretical investigations reveal that, in the phosphate protected Pdn system, the desorption of DMF is the rate-determining step. And compared with the Pd catalyst coordinated with PPh3, the Pdn catalyst protected by DPEphos has a modest desorption ability of DMF, leading to the high yield of DMF. This work presents the synthesis and application of a Pdn catalyst with bidentate phosphine ligands, which could contribute to the development of rational design of effective catalysts in biomass and energy conversion.
期刊介绍:
A multidisciplinary journal focusing on cutting edge research across all fundamental science and technological aspects of catalysis.
Editor-in-chief: Bert Weckhuysen
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