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Blanco E, Cabeza P, Ovejero VN, Contreras C, Dongil AB, Ghampson IT, Escalona N. Effect of carbon support and functionalization on the synthesis of Rhenium carbide and its use on HDO of guaiacol. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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2
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Zeolitic Imidazolate Framework Decorated Molybdenum Carbide Catalysts for Hydrodeoxygenation of Guaiacol to Phenol. Catalysts 2022. [DOI: 10.3390/catal12121605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bimetallic zeolitic imidazolate framework (BMZIF)-decorated Mo carbide catalysts were designed for the catalytic hydrodeoxygenation of guaiacol to produce phenol with high selectivity. A uniform layer of BMZIF was systematically coated onto the surface of the MoO3 nanorods. During carbonization at 700 °C for 4 h, BMZIF generated active species (ZnO, CoO) on highly dispersed N-doped carbons, creating a porous shell structure. Simultaneously, the MoO3 nanorod was transformed into the Mo2C phase. The resulting core@shell type Mo2C@BMZIF-700 °C (4 h) catalyst promoted a 97% guaiacol conversion and 70% phenol selectivity under 4 MPa of H2 at 330 °C for 4 h, which was not achieved by other supported catalysts. The catalyst also showed excellent selective cleavage of the methoxy group of lignin derivatives (syringol and vanillin), which makes it suitable for selective demethoxylation in future biomass catalysis. Moreover, it exhibits excellent recyclability and stability without changing the structure or active species.
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3
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Waste Biomass Selective and Sustainable Photooxidation to High-Added-Value Products: A Review. Catalysts 2022. [DOI: 10.3390/catal12101091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Researchers worldwide seek to develop convenient, green, and ecological production processes to synthesize chemical products with high added value. In this sense, lignocellulosic biomass photocatalysis is an excellent process for obtaining various outcomes for the industry. One issue of biomass transformation via heterogeneous catalysis into valuable chemicals is the selection of an adequate catalyst that ensures high conversion and selectivity at low costs. Titanium oxide (TiO2), is widely used for several applications, including photocatalytic biomass degradation, depolymerization, and transformation. Graphite carbon nitride (g-C3N4) is a metal-free polymeric semiconductor with high oxidation and temperature resistance and there is a recent interest in developing this catalyst. Both catalysts are amenable to industrial production, relatively easy to dope, and suited for solar light absorption. Recent investigations also show the advantages of using heterojunctions, for biomass derivates production, due to their better solar spectrum absorption properties and, thus, higher efficiency, conversion, and selectivity over a broader spectrum. This work summarizes recent studies that maximize selectivity and conversion of biomass using photocatalysts based on TiO2 and g-C3N4 as supports, as well as the advantages of using metals, heterojunctions, and macromolecules in converting cellulose and lignin. The results presented show that heterogeneous photocatalysis is an interesting technology for obtaining several chemicals of industrial use, especially when using TiO2 and g-C3N4 doped with metals, heterojunctions, and macromolecules because these modified catalysts permit higher conversion and selectivity, milder reaction conditions, and reduced cost due to solar light utilization. In order to apply these technologies, it is essential to adopt government policies that promote the use of photocatalysts in the industry, in addition to encouraging active collaboration between photooxidation research groups and companies that process lignocellulosic biomass.
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Qu Z, Liu Y, Shao Y, Zhang J, Jiang H, Chen R. Insights into Microstructure and Surface Properties of Pd/C for Liquid Phase Phenol Hydrogenation to Cyclohexanone. Catal Letters 2022. [DOI: 10.1007/s10562-022-03973-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Agrawal K, Roldan A, Kishore N, Logsdail AJ. Hydrodeoxygenation of guaiacol over orthorhombic molybdenum carbide: a DFT and microkinetic study. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01273h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The hydrodeoxygenation of guaiacol is modelled over a (100) β-Mo2C surface using density functional theory and microkinetic simulations.
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Affiliation(s)
- Kushagra Agrawal
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, Wales, UK
| | - Alberto Roldan
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, Wales, UK
| | - Nanda Kishore
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Andrew J. Logsdail
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, Wales, UK
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Blanco E, Carrales-Alvarado D, Belen Dongil A, Escalona N. Effect of the Support Functionalization of Mono- and Bimetallic Ni/Co Supported on Graphene in Hydrodeoxygenation of Guaiacol. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Elodie Blanco
- Departamento de Ingeniería y Gestión de la Construcción, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
- Departamento de Ingeniería Química y Bioprocesos, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
- ANID-Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), 8320000 Santiago, Chile
| | | | - Ana Belen Dongil
- Instituto de Catálisis y Petroleoquímica, CSIC, Cantoblanco, 28049 Madrid, España
| | - Néstor Escalona
- Departamento de Ingeniería Química y Bioprocesos, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
- ANID-Millennium Science Initiative Program-Millennium Nuclei on Catalytic Process towards Sustainable Chemistry (CSC), 8320000 Santiago, Chile
- Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
- Centro de Investigación en Nanotecnología y Materiales CIEN-UC, Pontificia Universidad Católica de Chile, 7820436 Santiago, Chile
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7
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Performance of supported metal catalysts in the dimethyl carbonate production by direct synthesis using CO2 and methanol. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Wang H, Yang M, Jin S, Zhang R, Li W, Wang Y, Huo W, Wang X, Qiao W, Ling L, Jin M. Promotion of Phosphorus on Carbon Supports for MnO
x
−CeO
2
Catalysts in Low‐Temperature NH
3
−SCR with Enhanced SO
2
Resistance. ChemistrySelect 2021. [DOI: 10.1002/slct.202100242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- He Wang
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Minghe Yang
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Shuangling Jin
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Rui Zhang
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Weifeng Li
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Yan Wang
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Wanying Huo
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Xiaorui Wang
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
| | - Wenming Qiao
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 China
| | - Licheng Ling
- State Key Laboratory of Chemical Engineering East China University of Science and Technology Shanghai 200237 China
| | - Minglin Jin
- School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China
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Yan B, Lin X, Chen Z, Cai Q, Zhang S. Selective production of phenolic monomers via high efficient lignin depolymerization with a carbon based nickel-iron-molybdenum carbide catalyst under mild conditions. BIORESOURCE TECHNOLOGY 2021; 321:124503. [PMID: 33310408 DOI: 10.1016/j.biortech.2020.124503] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Lignin is an abundant renewable source of bio-aromatics and its valorization is of great importance. In this work, an efficient non-precious carbon based metal-Mo2C catalytic system for selective production of phenolic monomers (PMs) from organosolv lignin depolymerization is proposed. With the optimized catalyst of Ni-Fe-Mo2C, 89.56% of liquefaction and 35.53% of PMs yields were achieved under 260 ℃ for 4 h with water-methanol (4:1 v/v) solvent. Characterization of the catalysts shows that the induction of Ni-Fe species was favor for the formation of β-Mo2C, and efficiently promoted the lignin liquefaction. The decoration of Ni/Fe can also change the side chain hydrogenolysis ability of the catalyst and exhibite high yield for 4-ethylphenol (14.77%) production. Methanol, used as co-solvent, was found to play an important role in PMs production and lignin depolymerization. These results demonstrated that the Ni-Fe-Mo2C catalytic system has potential to produce valuable phenolic monomers from lignin under mild conditions.
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Affiliation(s)
- Bochao Yan
- Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyu Lin
- Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhihui Chen
- Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qinjie Cai
- Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Suping Zhang
- Research Center for Biomass Energy, School of Resources and Environmental Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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Blanco E, Aguirre-Abarca DA, Díaz de León JN, Escalona N. Relevant aspects of the conversion of guaiacol as a model compound for bio-oil over supported molybdenum oxycarbide catalysts. NEW J CHEM 2020. [DOI: 10.1039/d0nj02531c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Molybdenum supported over activated carbon has been carburized under carbothermal hydrogen reduction conditions at different temperatures in order to modify the carburization degree and evaluated for guaiacol conversion.
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Affiliation(s)
- Elodie Blanco
- Departamento de Ingeniería Química y Bioprocesos
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
- Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC)
| | - Diego A. Aguirre-Abarca
- Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC)
- Santiago
- Chile
- Departamento de Química Física
- Facultad de Química y de Farmacia
| | - J. Noé Díaz de León
- Universidad Nacional Autónoma de México
- Centro de Nanociencias y Nanotecnología
- Mexico
| | - Néstor Escalona
- Departamento de Ingeniería Química y Bioprocesos
- Pontificia Universidad Católica de Chile
- Santiago
- Chile
- Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC)
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