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学者姓名：吴清宸
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Abstract ：
Deep hydrogenation of dicyclopentadiene resin (DCPD resin) plays an important role in enhancing its performance and broadening its applications. However, designing suitable catalysts for promoting DCPD resin deep hydrogenation remains a challenge due to the high steric hindrance and abundant unsaturated bonds in DCPD resin, requiring strong binding to C=C double bonds. We herein propose a strategy for simultaneously constructing highly-dispersed Ni particles for hydrogen dissociation and interfacial Ni0/Ni(OH)+ sites for C=C adsorption by controlled reduction of Ni phyllosilicate (Ni PS). The catalyst, after reduction at 400 degrees C, demonstrated balanced ratio between Ni0 and interfacial Ni0/Ni(OH)+ sites, and achieved a hydrogenation degree of 99.8% (TOF: 68.8 h-1) while maintaining 99.3% efficiency after seven consecutive cycles. Through in-situ DRIFTS analysis and density functional theory (DFT) calculations, it is confirmed that the introduction of Ni0/Ni(OH)+ interfacial sites results in superior activity compared to pure Ni0 or unreduced PS due to optimized charge transfer and electronic configuration. This work not only establishes a simple and environmentally-friendly approach to design efficient catalysts for polymer hydrogenation, but also provides insights into the mechanism of unsaturated bond hydrogenation through the synergistic effects of Ni0 and Ni0/Ni(OH)+ interfacial sites.
Keyword ：
DCPD resin DCPD resin Hydrogenation Hydrogenation Ni(OH) plus Ni(OH) plus Ni phyllosilicate Ni phyllosilicate
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| GB/T 7714 | Liu, Qunhong , Liu, Zhen , Yang, Zongxuan et al. Deciphering Ni0/Ni(OH)+ interfacial sites for deep hydrogenation of dicyclopentadiene resin [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
| MLA | Liu, Qunhong et al. "Deciphering Ni0/Ni(OH)+ interfacial sites for deep hydrogenation of dicyclopentadiene resin" . | CHEMICAL ENGINEERING JOURNAL 512 (2025) . |
| APA | Liu, Qunhong , Liu, Zhen , Yang, Zongxuan , Wu, Qingchen , Li, Zimeng , Liu, Zhichen et al. Deciphering Ni0/Ni(OH)+ interfacial sites for deep hydrogenation of dicyclopentadiene resin . | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
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