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Yan T, Chen S, Sun W, Liu Y, Pan L, Shi C, Zhang X, Huang ZF, Zou JJ. IrO 2 Nanoparticle-Decorated Ir-Doped W 18O 49 Nanowires with High Mass Specific OER Activity for Proton Exchange Membrane Electrolysis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6912-6922. [PMID: 36718123 DOI: 10.1021/acsami.2c20529] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The oxygen evolution reaction (OER) severely limits the efficiency of proton exchange membrane (PEM) electrolyzers due to slow reaction kinetics. IrO2 is currently a commonly used anode catalyst, but its large-scale application is limited due to its high price and scarce reserves. Herein, we reported a practical strategy to construct an acid OER catalyst where Iridium oxide loading and iridium element bulk doping are realized on the surface and inside of W18O49 nanowires by immersion adsorption, respectively. Specifically, W0.7Ir0.3Oy has an overpotential of 278 mV at 10 mA·cm-2 in 0.1 M HClO4. The mass activity of 714.10 A·gIr-1 at 1.53 V vs. the reversible hydrogen electrode (RHE) is 80 times that of IrO2, and it can run stably for 55 h. In the PEM water electrolyzer device, its mass activity reaches 3563.63 A·gIr-1 at the cell voltage of 2.0 V. This improved catalytic performance is attributed to the following aspects: (1) The electron transport between iridium and tungsten effectively improves the electronic structure of the catalyst; (2) the introduction of iridium into W18O49 by means of elemental bulk doping and nanoparticles supporting for the enhanced conductivity and electrochemically active surface area of the catalyst, resulting in extensive exposure of active sites and increased intrinsic activity; and (3) during the OER process, partial iridium elements in the bulk phase are precipitated, and iridium oxide is formed on the surface to maintain stable activity. This work provides a new idea for designing oxygen evolution catalysts with low iridium content for practical application in PEM electrolyzers.
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Affiliation(s)
- Tianqing Yan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
| | - Shiyi Chen
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
| | - Wendi Sun
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Yuezheng Liu
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
| | - Lun Pan
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Chengxiang Shi
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Zhen-Feng Huang
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
| | - Ji-Jun Zou
- Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- Collaborative Innovative Center of Chemical Science and Engineering (Tianjin), Tianjin300072, China
- Zhejiang Institute of Tianjin University, Ningbo315201, Zhejiang, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin300192, China
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2
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BOZ I, Safak BOROGLU M, ZENGIN Y, KAYA B. WO3-Based Porous MCM-48 Catalysts for Renewable Acrolein Synthesis by the Dehydration of Glycerol. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Fu C, She Q, Tesser R, Zhou CH. Cleaner One-Pot Transformation of Glycerol to Acrylic Acid and 1,2-Propanediol over Cu2O/Montmorillonite Bifunctional Catalysts Without External Oxygen and Hydrogen. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02359d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient conversion of glycerol, an inevitable by-product of the transesterification process producing biodiesel, to acrylic acid (AA) and 1,2-propanediol (1,2-PDO) via a cleaner process is much attractive and challenging. In...
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4
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Investigation of vanadium-containing mixed oxides on the catalytic performance for 2, 6-dichlorotoluene ammoxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Abdullah A, Abdullah AZ, Ahmed M, Okoye PU, Shahadat M. A review on bi/multifunctional catalytic oxydehydration of bioglycerol to acrylic acid: Catalyst type, kinetics, and reaction mechanism. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24295] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anas Abdullah
- School of Chemical Engineering Universiti Sains Malaysia Nibong Tebal Malaysia
| | | | - Mukhtar Ahmed
- School of Chemical Engineering Universiti Sains Malaysia Nibong Tebal Malaysia
| | - Patrick U. Okoye
- Laboratorio de Bioenergía Instituto de Energías Renovables (IER‐UNAM) Temixco Mexico
| | - Mohammad Shahadat
- School of Chemical Engineering Universiti Sains Malaysia Nibong Tebal Malaysia
- Department of Biochemical Engineering and Biotechnology Indian Institute of Technology IIT Delhi India
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6
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Li X, Hu H, Chen P, Yang S. Synthesis of nanorods assembled V‐doped
WO
3
microspheres and the catalytic performance in thermal decomposition of ammonium perchlorate. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xiongjian Li
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering Hubei Normal University Huangshi P. R. China
| | - Hao Hu
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering Hubei Normal University Huangshi P. R. China
| | - Piao Chen
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering Hubei Normal University Huangshi P. R. China
| | - Shuijin Yang
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, College of Chemistry and Chemical Engineering Hubei Normal University Huangshi P. R. China
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7
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Li X, Huang C. Hydrothermal synthesis of V-doped hexagonal WO3 microspheres comprising of nanoblocks for catalytic ammoxidation of dichlorotoluene. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120173] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Gérardy R, Debecker DP, Estager J, Luis P, Monbaliu JCM. Continuous Flow Upgrading of Selected C 2-C 6 Platform Chemicals Derived from Biomass. Chem Rev 2020; 120:7219-7347. [PMID: 32667196 DOI: 10.1021/acs.chemrev.9b00846] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The ever increasing industrial production of commodity and specialty chemicals inexorably depletes the finite primary fossil resources available on Earth. The forecast of population growth over the next 3 decades is a very strong incentive for the identification of alternative primary resources other than petro-based ones. In contrast with fossil resources, renewable biomass is a virtually inexhaustible reservoir of chemical building blocks. Shifting the current industrial paradigm from almost exclusively petro-based resources to alternative bio-based raw materials requires more than vibrant political messages; it requires a profound revision of the concepts and technologies on which industrial chemical processes rely. Only a small fraction of molecules extracted from biomass bears significant chemical and commercial potentials to be considered as ubiquitous chemical platforms upon which a new, bio-based industry can thrive. Owing to its inherent assets in terms of unique process experience, scalability, and reduced environmental footprint, flow chemistry arguably has a major role to play in this context. This review covers a selection of C2 to C6 bio-based chemical platforms with existing commercial markets including polyols (ethylene glycol, 1,2-propanediol, 1,3-propanediol, glycerol, 1,4-butanediol, xylitol, and sorbitol), furanoids (furfural and 5-hydroxymethylfurfural) and carboxylic acids (lactic acid, succinic acid, fumaric acid, malic acid, itaconic acid, and levulinic acid). The aim of this review is to illustrate the various aspects of upgrading bio-based platform molecules toward commodity or specialty chemicals using new process concepts that fall under the umbrella of continuous flow technology and that could change the future perspectives of biorefineries.
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Affiliation(s)
- Romaric Gérardy
- Center for Integrated Technology and Organic Synthesis, MolSys Research Unit, University of Liège, B-4000 Sart Tilman, Liège, Belgium
| | - Damien P Debecker
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCLouvain), B-1348 Louvain-la-Neuve, Belgium.,Research & Innovation Centre for Process Engineering (ReCIPE), Université catholique de Louvain (UCLouvain), B-1348 Louvain-la-Neuve, Belgium
| | - Julien Estager
- Certech, Rue Jules Bordet 45, Zone Industrielle C, B-7180 Seneffe, Belgium
| | - Patricia Luis
- Research & Innovation Centre for Process Engineering (ReCIPE), Université catholique de Louvain (UCLouvain), B-1348 Louvain-la-Neuve, Belgium.,Materials & Process Engineering (iMMC-IMAP), UCLouvain, B-1348 Louvain-la-Neuve, Belgium
| | - Jean-Christophe M Monbaliu
- Center for Integrated Technology and Organic Synthesis, MolSys Research Unit, University of Liège, B-4000 Sart Tilman, Liège, Belgium
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9
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Abstract
Biodiesel has been identified as one of the notable options for at least complementing conventional fuels. From a transesterification reaction, crude glycerol is produced as the main by-product. Given the difficultly in upgrading to high-grade glycerin and glycerol market saturation, alternative routes to more value-added products have aroused significant interest. In this work, we proposed supported vanadyl orthophosphates (VOP) as catalysts for the glycerol dehydration to acrolein. VOP supported on γ-Al2O3, TiO2, and ZrO2 were prepared, characterized by inductively coupled plasma mass spectrometry (ICP-MS), X-ray diffraction (XRD), N2 physisorption and temperature-programmed desorption of ammonia (NH3-TPD), and tested under different operating conditions. All the samples showed low coke formation in the presence of molecular oxygen in the feed. Acrolein is the main condensable product, with carbon balance being satisfactory under most operating conditions. VOP supported onto alumina provided the best catalytic performance, due to a good balance between the acid (weak and medium acid sites) and redox sites, thereby appearing as a good candidate for glycerol dehydration to acrolein.
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10
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Wu ST, She QM, Tesser R, Serio MD, Zhou CH. Catalytic glycerol dehydration-oxidation to acrylic acid. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2020.1719611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Shu Tao Wu
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Qi Ming She
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- College of Chemistry and Chemical Engineering, Huangshan University, Huangshan, China
| | - Riccardo Tesser
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Martino Di Serio
- Department of Chemical Sciences, University of Naples “Federico II”, Naples, Italy
| | - Chun Hui Zhou
- Research Group for Advanced Materials & Sustainable Catalysis (AMSC), State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Institute of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of High Efficient Processing of Bamboo of Zhejiang Province, China National Bamboo Research Center, Hangzhou, China
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11
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Activation of Mo and V oxides supported on ZSM-5 zeolite catalysts followed by in situ XAS and XRD and their uses in oxydehydration of glycerol. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2018.07.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Vanadium Phosphorus Oxide/Siliceous Mesostructured Cellular Foams: efficient and selective for sustainable acrylic acid production via condensation route. Sci Rep 2019; 9:16988. [PMID: 31740731 PMCID: PMC6861258 DOI: 10.1038/s41598-019-53180-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 10/14/2019] [Indexed: 11/08/2022] Open
Abstract
A new type of supported vanadium phosphorus oxide (VPO) with self-phase regulation was simply fabricated (organic solvent free) for the first time by depositing the specific VPO precursor NH4(VO2)HPO4 onto the Siliceous Mesostructured Cellular Foams (MCF) with controlled activation. The resulting materials were found to be highly efficient and selective for sustainable acrylic acid (AA) plus methyl acrylate (MA) production via a condensation route between acetic acid (HAc) and formaldehyde (HCHO). A (AA + MA) yield of 83.7% (HCHO input-based) or a (AA + MA) selectivity of 81.7% (converted HAc-based) are achievable at 360 °C. The systematic characterizations and evaluations demonstrate a unique surface regulation occurring between the MCF and the NH4(VO2)HPO4 precursor. NH3 release upon activation of NH4(VO2)HPO4 precursor together with adsorption of NH3 by MCF automatically induces partial reduction of V5+ whose content is fine-tunable by the VPO loading. Such a functionalization simultaneously modifies phase constitution and surface acidity/basicity of catalyst, hence readily controls catalytic performance.
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Delgado D, Fernández-Arroyo A, Domine ME, García-González E, López Nieto JM. W–Nb–O oxides with tunable acid properties as efficient catalysts for the transformation of biomass-derived oxygenates in aqueous systems. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00367c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The control of Nb incorporation in W–Nb–O system leads to tailored Brönsted/Lewis acid properties for the selective transformation of either glycerol or aqueous mixtures of short chain oxygenates into value added products.
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Affiliation(s)
- Daniel Delgado
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - Alberto Fernández-Arroyo
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - Marcelo E. Domine
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - Ester García-González
- Departamento de Química Inorgánica
- Facultad de Ciencias Químicas
- Universidad Complutense
- 28040 Madrid
- Spain
| | - José M. López Nieto
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
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14
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Li X, Sun L, Hu M, Huang R, Huang C. Hydrothermal Synthesis of Urchin-like W-V-O Nanostructures with Excellent Catalytic Performance. Inorg Chem 2018; 57:14758-14763. [PMID: 30411609 DOI: 10.1021/acs.inorgchem.8b02513] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Urchinlike W-V-O microspheres have been successfully synthesized for the first time by a one-pot hydrothermal approach. The as-synthesized W-V-O material was characterized by several techniques such as XRD, SEM, TEM, FTIR, EDS, BET, and Raman spectroscopy. The characterization results have revealed that the W-V-O microspheres consist of numerous one-dimensional nanobelts radially grown from the center. The typical nanobelts display rectangular cross sections with lengths of several micrometers, widths of about 50 nm, and thicknesses of approximately 10-20 nm. Vanadium oxides are dispersed highly either on the external surface or inside the channel surface of the hexagonal WO3 structure. In addition, the as-obtained urchin-like W-V-O material was explored as a catalyst for the ammoxidation of 2,4- and 2,6-dichlorotoluene to the corresponding nitriles. The catalytic results have indicated that the W-V-O nanostructures show excellent performance with yields of 2,4- and 2,6-dichlorobenzonitrile respectively reaching up to 77.3 and 75.1%, which are the highest among the previously reported catalysts with two components. The formation process of the urchinlike W-V-O microspheres was simply investigated.
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Affiliation(s)
- Xiongjian Li
- College of Chemistry and Molecular Sciences, National Demonstration Center for Experimental Chemistry Education (Wuhan University) , Wuhan University , Wuhan , 430072 , People's Republic of China.,Hubei Military-Civilian Integration and Co-Innovation Center of Aerospace Power and Materials Technology , Wuhan 430072 , People's Republic of China
| | - Li Sun
- College of Chemistry and Molecular Sciences, National Demonstration Center for Experimental Chemistry Education (Wuhan University) , Wuhan University , Wuhan , 430072 , People's Republic of China
| | - Mingjie Hu
- College of Chemistry and Molecular Sciences, National Demonstration Center for Experimental Chemistry Education (Wuhan University) , Wuhan University , Wuhan , 430072 , People's Republic of China.,Hubei Military-Civilian Integration and Co-Innovation Center of Aerospace Power and Materials Technology , Wuhan 430072 , People's Republic of China
| | - Ronghua Huang
- College of Power and Mechanical Engineering , Wuhan University , Wuhan 430072 , People's Republic of China
| | - Chi Huang
- College of Chemistry and Molecular Sciences, National Demonstration Center for Experimental Chemistry Education (Wuhan University) , Wuhan University , Wuhan , 430072 , People's Republic of China.,Hubei Military-Civilian Integration and Co-Innovation Center of Aerospace Power and Materials Technology , Wuhan 430072 , People's Republic of China
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15
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An investigation on AuPt and AuPt-Bi on granular carbon as catalysts for the oxidation of glycerol under continuous flow conditions. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Andrushkevich TV, Chesalov YA. Mechanism of heterogeneous catalytic oxidation of organic compounds to carboxylic acids. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The results of studies on the mechanism of heterogeneous catalytic oxidation of organic compounds of different chemical structure to carboxylic acids are analyzed and generalized. The concept developed by Academician G.K.Boreskov, according to which the direction of the reaction is governed by the structure and bond energy of surface intermediates, was confirmed taking the title processes as examples. Quantitative criteria of the bond energies of surface compounds of oxidizable reactants, reaction products and oxygen that determine the selective course of the reaction are presented.
The bibliography includes 195 references.
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17
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Zhang W, Innocenti G, Oulego P, Gitis V, Wu H, Ensing B, Cavani F, Rothenberg G, Shiju NR. Highly Selective Oxidation of Ethyl Lactate to Ethyl Pyruvate Catalyzed by Mesoporous Vanadia-Titania. ACS Catal 2018. [PMID: 29527403 PMCID: PMC5839604 DOI: 10.1021/acscatal.7b03843] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
The
direct oxidative dehydrogenation of lactates with molecular
oxygen is a “greener” alternative for producing pyruvates.
Here we report a one-pot synthesis of mesoporous vanadia–titania
(VTN), acting as highly efficient and recyclable catalysts for the
conversion of ethyl lactate to ethyl pyruvate. These VTN materials
feature high surface areas, large pore volumes, and high densities
of isolated vanadium species, which can expose the active sites and
facilitate the mass transport. In comparison to homogeneous vanadium
complexes and VOx/TiO2 prepared
by impregnation, the meso-VTN catalysts showed superior activity,
selectivity, and stability in the aerobic oxidation of ethyl lactate
to ethyl pyruvate. We also studied the effect of various vanadium
precursors, which revealed that the vanadium-induced phase transition
of meso-VTN from anatase to rutile depends strongly on the vanadium
precursor. NH4VO3 was found to be the optimal
vanadium precursor, forming more monomeric vanadium species. V4+ as the major valence state was incorporated into the lattice
of the NH4VO3-derived VTN material, yielding
more V4+–O–Ti bonds in the anatase-dominant
structure. In situ DRIFT spectroscopy and density functional theory
calculations show that V4+–O–Ti bonds are
responsible for the dissociation of ethyl lactate over VTN catalysts
and for further activation of the deprotonation of β-hydrogen.
Molecular oxygen can replenish the surface oxygen to regenerate the
V4+–O–Ti bonds.
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Affiliation(s)
- Wei Zhang
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090GD Amsterdam, The Netherlands
| | - Giada Innocenti
- Dipartimento
di Chimica Industriale, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
- Consorzio
INSTM, UdR di Bologna, Firenze, Italy
| | - Paula Oulego
- Department
of Chemical and Environmental Engineering, University of Oviedo, C/Julián Clavería, s/n., E-33071, Oviedo, Spain
| | - Vitaly Gitis
- Unit
of Environmental Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 84105, Israel
| | - Haihong Wu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, People’s Republic of China
| | - Bernd Ensing
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090GD Amsterdam, The Netherlands
| | - Fabrizio Cavani
- Dipartimento
di Chimica Industriale, ALMA MATER STUDIORUM Università di Bologna, Viale Risorgimento 4, 40136 Bologna, Italy
- Consorzio
INSTM, UdR di Bologna, Firenze, Italy
| | - Gadi Rothenberg
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090GD Amsterdam, The Netherlands
| | - N. Raveendran Shiju
- Van
’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090GD Amsterdam, The Netherlands
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18
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Zhang W, Innocenti G, Ferbinteanu M, Ramos-Fernandez EV, Sepulveda-Escribano A, Wu H, Cavani F, Rothenberg G, Shiju NR. Understanding the oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over vanadia/titania. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02309j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We studied the vapour-phase oxidative dehydrogenation of ethyl lactate to ethyl pyruvate over V2O5/TiO2 catalysts in a fixed-bed reactor.
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Affiliation(s)
- Wei Zhang
- Van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090GD Amsterdam
- The Netherlands
| | - Giada Innocenti
- Dipartimento di Chimica Industriale
- ALMA MATER STUDIORUM Università di Bologna
- 40136 Bologna
- Italy
- Consorzio INSTM
| | - Marilena Ferbinteanu
- Faculty of Chemistry
- Inorganic Chemistry Department
- University of Bucharest
- Bucharest 020462
- Romania
| | - Enrique V. Ramos-Fernandez
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - Antonio Sepulveda-Escribano
- Laboratorio de Materiales Avanzados
- Departamento de Química Inorgánica-Instituto Universitario de Materiales
- Universidad de Alicante
- E-03690 San Vicente del Raspeig
- Spain
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- Department of Chemistry
- East China Normal University
- Shanghai
- China
| | - Fabrizio Cavani
- Dipartimento di Chimica Industriale
- ALMA MATER STUDIORUM Università di Bologna
- 40136 Bologna
- Italy
- Consorzio INSTM
| | - Gadi Rothenberg
- Van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090GD Amsterdam
- The Netherlands
| | - N. Raveendran Shiju
- Van't Hoff Institute for Molecular Sciences
- University of Amsterdam
- 1090GD Amsterdam
- The Netherlands
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Nadji L, Massó A, Delgado D, Issaadi R, Rodriguez-Aguado E, Rodriguez-Castellón E, Nieto JML. Gas phase dehydration of glycerol to acrolein over WO3-based catalysts prepared by non-hydrolytic sol–gel synthesis. RSC Adv 2018; 8:13344-13352. [PMID: 35542536 PMCID: PMC9079827 DOI: 10.1039/c8ra01575a] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/04/2018] [Indexed: 11/21/2022] Open
Abstract
Solid acid catalysts based on WO3–SiO2 and WO3–ZrO2–SiO2 were prepared by one-pot non-hydrolytic sol–gel method and tested in the gas phase glycerol dehydration to acrolein. Their structural and textural characteristics were determined by X-ray diffraction (XRD), N2 adsorption, X-ray energy dispersive spectroscopy (XEDS), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS). Their acid characteristics were studied by both temperature programmed desorption of ammonia (NH3-TPD) and FTIR of adsorbed pyridine. Under our operating conditions, all the catalysts were active and selective in the transformation of glycerol to acrolein, which was always the main reaction product. The high selectivity to acrolein is achieved on catalysts presenting a higher proportion of Brønsted acid sites. In addition, the role of oxygen in the feed on catalytic performance of these catalysts is also discussed. Active and selective W–Si–(Zr)–O catalysts for glycerol dehydration to acrolein have been successfully prepared by non-hydrolytic sol gel method.![]()
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Affiliation(s)
- L. Nadji
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
- Laboratoire des Applications Energétiques de l'Hydrogène
| | - A. Massó
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - D. Delgado
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
| | - R. Issaadi
- Laboratoire des Applications Energétiques de l'Hydrogène
- Faculté de Technologie
- Université Saad Dahlab
- Blida 1
- Algeria
| | | | | | - J. M. López Nieto
- Instituto de Tecnología Química
- Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas
- 46022 Valencia
- Spain
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V- and Nb-containing tungsten bronzes catalysts for the aerobic transformation of ethanol and glycerol. Bulk and supported materials. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.04.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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