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Zou W, Zhou H, Wang M. Photoinduced Biomimetic Room-Temperature C-O Bond Cleavage over Mn Doped CdS. CHEMSUSCHEM 2023; 16:e202300727. [PMID: 37486587 DOI: 10.1002/cssc.202300727] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 07/25/2023]
Abstract
Selective C-O bond cleavage is an efficient way for the biomass valorization to value-added chemicals, but is challenged to be operated at room temperature via conventional thermal catalysis. Herein, inspired from the DNA biosynthesis which involves a radical-mediated spin-center shift (SCS) C-O bond cleavage process, we report a biomimetic room-temperature C-O bond cleavage of vicinal diol (HOCHCH-OH). We construct a Mn doped CdS (Mn/CdS) as a photocatalyst to mimic the biologic SCS process. The Mn site plays pivotal role: (1) accelerates the photo-induced carrier separation, promoting the hole-mediated C-H bond cleavage to generate carbon-centered radicals, and (2) serves as the binding site for -OH groups, making it to be an easier leaving group. Mn/CdS achieves 0.28 mmol gcat -1 h-1 of hydroxyacetone (HA) from glycerol dehydration at room temperature under visible light irradiation, which is 3.5-fold that over pristine CdS and 40-fold that over bulk MnS/CdS. This study provides a new biomimetic room-temperature C-O bond cleavage process, which is promising for the biomass valorization.
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Affiliation(s)
- Wenjing Zou
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
| | - Hongru Zhou
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
| | - Min Wang
- School of Chemistry, Dalian University of Technology, Dalian, 116024, Liaoning, P. R. China
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Barbosa FF, Tavares JE, Albuquerque ADR, Morales Torres MA, Rodríguez-Castellón E, Pergher SBC, Braga TP. Catalytic dehydration of glycerol over Cu-Fe-Al-based oxides: understanding changes in active sites throughout the reaction. RSC Adv 2023; 13:31182-31200. [PMID: 37881763 PMCID: PMC10594406 DOI: 10.1039/d3ra05454c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
The glycerol conversion into acetol using Fe, Al and Cu-based oxides was investigated. XRD results indicate the formation of nanosized particles with high phase dispersion, however, Raman, Mössbauer, 27Al NMR and XPS spectroscopies suggest the presence of iron(iii) oxide, Al2O3 and CuO phases. The FTIR with pyridine adsorption revealed high Lewis acidity. The TPR profile showed the reduction temperature range for the Fe3+ and Cu2+ sites, indicating the suitable condition for pretreatment. The N2 adsorption-desorption isotherms indicated the presence of micro-mesopores with interesting textural properties and specific area varying between 71 and 220 m2 g-1, while the porous morphology was observed by SEM and TEM images. The optimized catalytic tests showed glycerol conversion of 60% and acetol selectivity of 92% with 17% of coke according to TG profile. The recycling tests confirmed the efficiency of the solid, reaching 28% conversion and 91% acetol selectivity after four reuses and, after reactivation in an oxidizing atmosphere, the catalytic performance obtained results close to the second reuse. The interaction between the different Lewis acid sites involved in the mechanisms for the acetol and coke formation on the catalyst surface is discussed. The charge distribution represented by colors which indicates the acid-base surface was evaluated by a simple theoretical-computational study based on the DFT approach. The synergy between the active sites indicates that the presence of Cu0/Cu+ drastically increases the acetol selectivity which is a more important characteristic than the high Lewis acidity of Fen+ and Al3+.
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Affiliation(s)
- Felipe Fernandes Barbosa
- Laboratório de Peneiras Moleculares, Instituto de Química, Universidade Federal do Rio Grande do Norte 59078-970 Natal RN Brazil +55-84-3342-2323
| | - João Edson Tavares
- Instituto de Química, Universidade Federal do Rio Grande do Norte 59078-970 Natal RN Brazil
| | | | | | - Enrique Rodríguez-Castellón
- Departamento de Química Inorgánica, Cristalografía y Mineralogía, Facultad de Ciencias, Universidad de Málaga 29071 Málaga Spain
| | - Sibele B C Pergher
- Laboratório de Peneiras Moleculares, Instituto de Química, Universidade Federal do Rio Grande do Norte 59078-970 Natal RN Brazil +55-84-3342-2323
| | - Tiago Pinheiro Braga
- Laboratório de Peneiras Moleculares, Instituto de Química, Universidade Federal do Rio Grande do Norte 59078-970 Natal RN Brazil +55-84-3342-2323
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Fernandes Barbosa F, Pinheiro Braga T. Catalytic Conversion of Glycerol to Acetol and Acrolein Using Metal Oxides: Surface Reactions, Prospects and Challenges. ChemCatChem 2022. [DOI: 10.1002/cctc.202200950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Felipe Fernandes Barbosa
- Instituto de Química Universidade Federal do Rio Grande do Norte Laboratório de Peneiras Moleculares (LABPEMOL) 59078-970 Natal Brazil
| | - Tiago Pinheiro Braga
- Instituto de Química Universidade Federal do Rio Grande do Norte Laboratório de Peneiras Moleculares (LABPEMOL) 59078-970 Natal Brazil
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Ali S, Kumar D, Mondal KC, El-Naas MH. Development of highly active Cu-based CO2 hydrogenation catalysts by solution combustion synthesis (SCS): Effects of synthesis variables. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Evaluation of Porous Honeycomb-Shaped CuO/CeO2 Catalyst in Vapour Phase Glycerol Reforming for Sustainable Hydrogen Production. Catalysts 2022. [DOI: 10.3390/catal12090941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study presented an optimisation study of two-stage vapour-phase catalytic glycerol reforming (VPCGR) using response surface methodology (RSM) with a central composite experimental design (CCD) approach. Characterisation through Brunauer–Emmett–Teller analysis (BET), small-angle X-ray scattering (SAXS), scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM-EDX), atomic force microscopy (AFM) and particle X-ray diffraction (PXRD) were carried out to understand the physiochemical activity of the honeycomb morphology CuO/CeO2 catalyst. Notably, in this study, we achieved the desired result of glycerol conversion (94%) and H2 production (81 vol.%) under the reaction condition of Cu species loading (10 wt.%), reaction temperature (823 K), WHSV (2 h−1) and glycerol concentration (15 wt.%). From the RSM analysis, an optimum predicted model for VPCGR was obtained and further integrated into Microsoft Excel and Aspen Plus to perform an energy analysis of the VPCGR plant at a scale of 100 kg h−1 of glycerol feed. As a whole, this study aimed to provide an overview of the technical operation and energy aspect for a sustainable frontier in glycerol reforming.
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Wang W, Tago T, Fujitsuka H. Hydrodeoxygenation of C3-4 polyols to C3-4 diols over carbon-supported bimetallic MgCu@C catalysts prepared from ion exchange resin. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.06.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Peng F, Sun Y, Hua C, Bai F, Ma H, Hu X, Liu X, Zhang M, Wang X. Polymetallic Molybdenum‐Based Catalysts for Epimerization of Glucose to Mannose. ChemistrySelect 2022. [DOI: 10.1002/slct.202103224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fubin Peng
- School of Textile and Material Engineering Institution Dalian Polytechnic University Dalian 116034 P.R. China
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
| | - Ying Sun
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
| | - Chao Hua
- Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing 100190 P.R. China
- Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 P.R. China
- School of Chemical and Engineering University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Fang Bai
- Innovation Academy for Green Manufacture Chinese Academy of Sciences Beijing 100190 P.R. China
- Key Laboratory of Green Process and Engineering Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 P.R. China
- School of Chemical and Engineering University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Hong Ma
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
| | - Xiangping Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
| | - Xin Liu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Meiyun Zhang
- Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Xinhong Wang
- School of Textile and Material Engineering Institution Dalian Polytechnic University Dalian 116034 P.R. China
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Md Rahim SAN, Lee CS, Aroua MK, Wan Daud WMA, Abnisa F, Cognet P, Pérès Y. Glycerol Electrocatalytic Reduction Using an Activated Carbon Composite Electrode: Understanding the Reaction Mechanisms and an Optimization Study. Front Chem 2022; 10:845614. [PMID: 35281562 PMCID: PMC8914049 DOI: 10.3389/fchem.2022.845614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/18/2022] [Indexed: 11/24/2022] Open
Abstract
The conversion of biomass-derived glycerol into valuable products is an alternative strategy for alleviating energy scarcity and environmental issues. The authors recently uncovered an activated carbon composite electrode with an Amberlyst-15 mediator able to generate 1,2-propanediol, diethylene glycol, and acetol via a glycerol electrocatalytic reduction. However, less attention to mechanistic insights makes its application to industrial processes challenging. Herein, two proposed intermediates, acetol and ethylene glycol, were employed as the feedstocks to fill the gap in the mechanistic understanding of the reactions. The results discovered the importance of acetol in producing 1,2-propanediol and concluded the glycerol electrocatalytic reduction process has a two-step reduction pathway, where glycerol was initially reduced to acetol and consecutively hydrogenated to 1,2-propanediol. At 353 K and 0.28 A/cm2, 1,2-propanediol selectivity achieved 77% (with 59.8 C mol% yield) after 7 h of acetol (3.0 mol/L) electrolysis. Finally, the influences of the temperature, glycerol initial concentration, and current density on the glycerol electrocatalytic reduction were evaluated. The initial step involved the C-O and C-C bonds cleavage in glycerol plays a crucial role in producing either acetol or ethylene glycol intermediate. This was controlled by the temperature, which low to moderate value is needed to maintain a selective acetol-1,2-propanediol route. Additionally, medium glycerol initial concentration reduced the hydrogen formation and indirectly improved 1,2-propanediol yield. A mild current density raised the conversion rate and minimized the growth of intermediates. At 353 K and 0.21 A/cm2, glycerol (3.0 mol/L) electrocatalytic reduction to 1,2-propanediol reached the maximum yield of 42.3 C mol%.
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Affiliation(s)
| | - Ching Shya Lee
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohamed Kheireddine Aroua
- Research Centre for Carbon Dioxide Capture and Utilization (CCDCU), School of Engineering and Technology, Sunway University, Bandar Sunway, Petaling Jaya, Malaysia
- Department of Engineering, Lancaster University, Lancaster, United Kingdom
- Sunway Materials Smart Science & Engineering Research Cluster (SMS2E), Sunway University, Bandar Sunway, Malaysia
| | - Wan Mohd Ashri Wan Daud
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
| | - Faisal Abnisa
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Rabigh, Saudi Arabia
| | - Patrick Cognet
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, Toulouse, France
| | - Yolande Pérès
- Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INP, UPS, Toulouse, France
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Glycerol Valorization over ZrO2-Supported Copper Nanoparticles Catalysts Prepared by Chemical Reduction Method. Catalysts 2021. [DOI: 10.3390/catal11091040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Copper nanoparticles (NPs) and ZrO2-supported copper NPs (Cu NPs/ZrO2) were synthesized via a chemical reduction method applying different pH (4, 7 and 9) and evaluated in a glycerol dehydration reaction. Copper NPs were characterized with transmission electron microscopy (TEM) and UV–vis spectroscopy. Transmission electron microcopy (TEM) results revealed a homogeneous distribution of copper NPs. A hypsochromic shift was identified with UV–vis spectroscopy as the pH of the synthesis increased from pH = 4 to pH = 9. Zirconia-supported copper NPs catalysts were characterized using N2 physisorption, X-ray diffraction (XRD), TEM, X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), temperature-programmed desorption of ammonia (NH3-TPD) and N2O chemisorption. The presence of ZrO2 in the chemical reduction method confirmed the dispersion of the copper nanoparticles. X-ray diffraction indicated only the presence of tetragonal zirconia patterns in the catalysts. XPS identified the Cu/Zr surface atomic ratio of the catalysts. TPR patterns showed two main peaks for the Cu NPS/ZrO2 pH = 9 catalyst; the first peak between 125 and 180 °C (region I) was ascribed to more dispersed copper species, and the second one between 180 and 250 °C (region II) was assigned to bulk CuO. The catalysts prepared at pH = 4 and pH = 7 only revealed reduction at lower temperatures (region I). Copper dispersion was determined by N2O chemisorption. With NH3-TPD it was found that Cu NPs/ZrO2 pH = 9 exhibited the highest total quantity of acidic sites and the highest apparent kinetic constant, with a value of 0.004 min−1. The different pH applied to the synthesis media of the copper nanoparticles determined the resultant copper dispersion on the ZrO2 support, providing active domains for glycerol conversion.
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