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Deng L, Li S, Liu Y, Lu Z, Fan Y, Yan Y, Yu S. Effect of Ce doping on the structure–activity relationship of MoVO x composite metal oxides. RSC Adv 2021; 11:36007-36015. [PMID: 35492786 PMCID: PMC9043333 DOI: 10.1039/d1ra05531c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/21/2021] [Indexed: 11/21/2022] Open
Abstract
Ce-doped MoVOx with disperse rod-shaped exhibits excellent catalytic performance in selective oxidation of benzyl alcohol.
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Affiliation(s)
- Luyao Deng
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
| | - Shuangming Li
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
- Key Laboratory of Chemical Separation Technology of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yongwei Liu
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
| | - Zixuan Lu
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
| | - Yaoxin Fan
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
| | - Yunong Yan
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
| | - Sansan Yu
- College of Chemical Engineering, Shenyang University of Chemical Technology, No. 9, 11 St., Shenyang Economic & Technological Development Zone, Shenyang 110142, China
- Key Laboratory of Chemical Separation Technology of Liaoning Province, Shenyang University of Chemical Technology, Shenyang 110142, China
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Guerrero‐Pérez MO, Patience GS. Experimental methods in chemical engineering: Fourier transform infrared spectroscopy—FTIR. CAN J CHEM ENG 2019. [DOI: 10.1002/cjce.23664] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Behavior of Molybdenum⁻Vanadium Mixed Oxides in Selective Oxidation and Disproportionation of Toluene. MATERIALS 2019; 12:ma12050748. [PMID: 30841502 PMCID: PMC6427125 DOI: 10.3390/ma12050748] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 11/28/2022]
Abstract
This study deals with the behavior of molybdenum–vanadium (Mo/V) mixed oxides catalysts in both disproportionation and selective oxidation of toluene. Samples containing different Mo/V ratios were prepared by a modified method using tetradecyltrimethylammonium bromide and acetic acid. The catalysts were characterized using several techniques: nitrogen adsorption–desorption isotherms, X-Ray diffraction (XRD), ammonia temperature-programmed desorption (TPD-NH3), temperature-programmed reduction by hydrogen (H2-TPR), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, Fourier-transform infrared-spectroscopy (FTIR) and ultraviolet-visible spectroscopies (UV–VIS). The XRD results evidenced the presence of orthorhombic α-MoO3 and V2O5 phases, as well as monoclinic β-MoO3 and V2MoO8 phases, their abundance depending on the Mo to V ratio, while the TPD-NH3 emphasized that, the total amount of the acid sites diminished with the increase of the Mo loading. The TPR investigations indicated that the samples with higher Mo/V ratio possess a higher reducibility. The main findings of this study led to the conclusion that the presence of strong acid sites afforded a high conversion in toluene disproportionation (Mo/V = 1), while a higher reducibility is a prerequisite to accomplishing high conversion in toluene oxidation (Mo/V = 2). The catalyst with Mo/V = 1 acquires the best yield to xylenes from the toluene disproportionation reaction, while the catalyst with Mo/V = 0.33 presents the highest yield to benzaldehyde.
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Sb, V, Nb containing catalysts in low temperature oxidation of methanol – The effect of preparation method on activity and selectivity. J Catal 2011. [DOI: 10.1016/j.jcat.2011.09.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Si Z, Weng D, Wu X, Yang J, Wang B. Modifications of CeO2–ZrO2 solid solutions by nickel and sulfate as catalysts for NO reduction with ammonia in excess O2. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.05.011] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Yi X, Zhang X, Weng W, Wan H. Studies on the reaction pathways for the selective oxidation of propane to acrolein over MoPO/SiO2 catalyst by IR spectroscopy. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.07.049] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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