CO2‐assisted controllable synthesis of PdNi nanoalloys for highly selective hydrogenation of biomass‐derived 5‐Hydroxymethylfurfural

Ruichao Guo, Yongjian Zeng, Lu Lin, Di Hu, Chunqiang Lu, Stuart Conroy, Suyu Zhang, Chen Zeng, Huixia Luo, Zhiwei Jiang, Xiaolei Zhang, Xin Tu*, Kai Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
9 Downloads (Pure)

Abstract

The selective hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bishydroxymethyltetrahydrofuran (BHMTHF), a vital fuel precursor and solvent, is crucial for biomass refining. Herein, we report highly selective and stable PdNi nanoalloy catalysts for this deep hydrogenation process. A CO 2-assisted green method was developed for the controllable synthesis of various bimetallic and monometallic catalysts. The PdNi/SBA-15 catalysts with various Pd/Ni ratios exhibited a volcano-like trend between BHMTHF yield and Pd/Ni ratio. Among all catalysts tested, Pd 2Ni 1/SBA-15 achieved the best performance, converting 99.0 % of HMF to BHMTHF with 96.0 % selectivity, surpassing previously reported catalysts. Additionally, the Pd 2Ni 1/SBA-15 catalyst maintained excellent stability even after five recycling runs. Catalyst characterizations (e. g., HAADF-STEM) and density functional theory (DFT) calculations confirmed the successful formation of the alloy structure with electron transfer between Ni and Pd, which accounts for the remarkable performance and stability of the catalyst. This work paves the way for developing highly selective and stable alloy catalysts for biomass valorization.

Original languageEnglish
Article numbere202418234
JournalAngewandte Chemie International Edition
Volume64
Issue number6
Early online date22 Oct 2024
DOIs
Publication statusPublished - 3 Feb 2025

Funding

This work was supported by the National Key R&D Program of China (2023YFC3905804), the National Natural Science Foundation of China (22078374, 22378434), and the Scientific and Technological Planning Project of Guangzhou (202206010145). X. Tu would like to acknowledge the support of the British Council (Grant No. 623389161).

Keywords

  • biomass refinery
  • hydrogenation
  • nanoalloys
  • 5-Hydroxymethylfurfural
  • 2,5-Bishydroxymethyltetrahydrofuran

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