Regulation of Pt Loading on Co/Al2O3 Catalysts for Selective Hydrogenation and Hydrogenolysis of 5-Hydroxymethylfurfural to 2,5-Bis(hydroxymethyl)furan and 2,5-Dimethylfuran

被引：7

作者：

Srifa, Atthapon ^{[1
]}

Kalong, Munsuree ^{[1
]}

Praikaew, Wanichaya ^{[1
]}

Ratchahat, Sakhon ^{[1
]}

Chaiwat, Weerawut ^{[1
]}

Koo-Amornpattana, Wanida ^{[1
]}

Klysubun, Wantana ^{[2
]}

Limphirat, Wanwisa ^{[2
]}

Assabumrungrat, Suttichai ^{[3
,4
]}

Kawi, Sibudjing ^{[5
]}

机构：

[1] Mahidol Univ, Fac Engn, Dept Chem Engn, Nakhon Pathom 73170, Thailand

[2] Synchrotron Light Res Inst, Nakhon Ratchasima 30000, Thailand

[3] Chulalongkorn Univ, Fac Engn, Ctr Excellence Catalysis & Catalyt React Engn, Dept Chem Engn, Bangkok 10330, Thailand

[4] Chulalongkorn Univ, Fac Engn, Biocircular Green Econ Technol & Engn Ctr BCGeTEC, Dept Chem Engn, Bangkok 10330, Thailand

[5] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore

来源：

CHEMCATCHEM | 2024年 / 16卷 / 05期

关键词：

Hydrogenation; Hydrogenolysis; CoPt catalyst; 5-Hydroxymethylfurfural; 2,5-Bis(hydroxymethyl)furan; 2,5-Dimethylfuran; CO; HYDRODEOXYGENATION; NI; ALLOY; OXIDE;

D O I：

10.1002/cctc.202301360

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Selective hydrogenation and hydrogenolysis of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF) and 2,5-dimethylfuran (DMF) were explored by regulating the nanosized Pt on Co/Al2O3 catalysts. Characterization results revealed that the catalyst acidity was influenced by adjusting the Co/Pt composition, while the addition of more Pt loading on Co/Al2O3 catalysts resulted in a facilitation of H-2 reduction process. Lower size of catalyst particles was obtained for the Co-Pt system in comparison to the monometallic Co/Al2O3 catalyst. Additionally, the structural characterizations by XRD, XANES, and XPS established the co-existences between metallic Pt0/Co0 and oxophilic PtO2/CoOx, acting as the active components for the reactions. Operated under a full HMF conversion, the Co1Pt0.050Al catalyst with high Pt loading gave >99.9 % BHMF selectivity at 40 C-degrees; whereas, an 86.7 % of DMF selectivity was noticeable over low Pt loading of the Co1Pt(0.013)Al catalyst at 160 C-degrees. This investigation evidenced that the selective production of BHMF or DMF towards hydro-conversion of HMF was relied on the amount of Pt contents on Co/Al2O3 catalyst, in which the metal sizes and acidity had meaningful effects on the hydrogenation and hydrogenolysis processes.

引用

页数：16

共 55 条

[1] Novel noble metal-free and recyclable Co-CoOx-FeNiCo/γ-Al2O3 catalyst for selective hydrogenation of 5-hydroxymethylfurfural to 2,5-dimethyl-furan or 2,5-Bis(hydroxymethyl)furan [J].