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Gao X, Luo B, Hong Y, He P, Zhang Z, Wu G. Controllable synthesis of a large TS-1 catalyst for clean epoxidation of a C=C double bond under mild conditions. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2280-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Pothu R, Challa P, Rajesh R, Boddula R, Balaga R, Balla P, Perugopu V, Radwan AB, Abdullah AM, Al-Qahtani N. Vapour-Phase Selective Hydrogenation of γ-Valerolactone to 2-Methyltetrahydrofuran Biofuel over Silica-Supported Copper Catalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3414. [PMID: 36234542 PMCID: PMC9565284 DOI: 10.3390/nano12193414] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/12/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
2-Methyltetrahydrofuran (MTHF) is a desirable biomass-based platform chemical with excellent potential as an ideal biofuel, green solvent, and raw material for synthesizing downstream chemicals. In this work, a series of copper nanoparticles encapsulated on SiO2 were prepared by the wet impregnation method and evaluated as efficient non-noble metal catalysts for the vapour-phase hydrogenation of γ-valerolactone (GVL) to MTHF in a fixed-bed reactor under mild reaction conditions. The obtained catalyst properties were determined by XRD, FE-SEM, TEM, UV-DRS, TPR, NH3-TPD, N2O decomposition and pore size distribution measurements. Meanwhile, the parameters/variables tuning their catalytic performance (activity, conversion, selectivity and stability) were examined. Various Cu loadings featured on the SiO2 support are essential for tuning the catalytic activity. Among the catalysts tested, a 5 wt% Cu/SiO2 catalyst showed a 97.2% MTHF selectivity with 71.9% GVL conversion, and showed a stability for 33 h time-on-stream, achieved at 260 °C and atmospheric pressure conditions. It was found that a huge dispersion of Cu metal in support, hydrogen activation ability, abundant acidic sites and surface area are all beneficial for improved MTHF selectivity.
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Affiliation(s)
- Ramyakrishna Pothu
- School of Physics and Electronics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Prathap Challa
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Rajendiran Rajesh
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Rajender Boddula
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
- Center for Advanced Materials (CAM), Qatar University, Doha 2713, Qatar
| | - Ravi Balaga
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Putrakumar Balla
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Vijayanand Perugopu
- Energy & Environmental Engineering Department, CSIR−Indian Institute of Chemical Technology, Hyderabad 500007, India
| | | | | | - Noora Al-Qahtani
- Center for Advanced Materials (CAM), Qatar University, Doha 2713, Qatar
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