1
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Jiménez JD, Lustemberg PG, Danielis M, Fernández-Villanueva E, Hwang S, Waluyo I, Hunt A, Wierzbicki D, Zhang J, Qi L, Trovarelli A, Rodriguez JA, Colussi S, Ganduglia-Pirovano MV, Senanayake SD. From Methane to Methanol: Pd-iC-CeO 2 Catalysts Engineered for High Selectivity via Mechanochemical Synthesis. J Am Chem Soc 2024; 146:25986-25999. [PMID: 39145676 PMCID: PMC11440493 DOI: 10.1021/jacs.4c04815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
In the pursuit of selective conversion of methane directly to methanol in the liquid-phase, a common challenge is the concurrent formation of undesirable liquid oxygenates or combustion byproducts. However, we demonstrate that monometallic Pd-CeO2 catalysts, modified by carbon, created by a simple mechanochemical synthesis method exhibit 100% selectivity toward methanol at 75 °C, using hydrogen peroxide as oxidizing agent. The solvent free synthesis yields a distinctive Pd-iC-CeO2 interface, where interfacial carbon (iC) modulates metal-oxide interactions and facilitates tandem methane activation and peroxide decomposition, thus resulting in an exclusive methanol selectivity of 100% with a yield of 117 μmol/gcat at 75 °C. Notably, solvent interactions of H2O2 (aq) were found to be critical for methanol selectivity through a density functional theory (DFT)-simulated Eley-Rideal-like mechanism. This mechanism uniquely enables the direct conversion of methane into methanol via a solid-liquid-gas process.
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Affiliation(s)
- Juan D Jiménez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Pablo G Lustemberg
- CSIC, Instituto de Catálisis y Petroleoquímica, C/Marie Curie 2, 28049 Madrid, Spain
| | - Maila Danielis
- Polytechnic Department, University of Udine and INSTM, Via del Cotonificio 108, 33100 Udine, Italy
| | - Estefanía Fernández-Villanueva
- CSIC, Instituto de Catálisis y Petroleoquímica, C/Marie Curie 2, 28049 Madrid, Spain
- Universitat Politècnica de València, Camí de Vera s/n, 46022 València, Spain
| | - Sooyeon Hwang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Iradwikanari Waluyo
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Adrian Hunt
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Dominik Wierzbicki
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jie Zhang
- Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Long Qi
- Ames National Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Alessandro Trovarelli
- Polytechnic Department, University of Udine and INSTM, Via del Cotonificio 108, 33100 Udine, Italy
| | - José A Rodriguez
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
- Department of Chemistry, State University of New York Stony Brook, Stony Brook, New York 11794, United States
| | - Sara Colussi
- Polytechnic Department, University of Udine and INSTM, Via del Cotonificio 108, 33100 Udine, Italy
| | | | - Sanjaya D Senanayake
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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2
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Jangir J, Jagirdar BR. Bridging Dehydrogenation and Hydrogenation in Heterogeneous Catalysis: A Demonstration of a Unified Catalytic Approach. Chemistry 2024; 30:e202400980. [PMID: 38850253 DOI: 10.1002/chem.202400980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/27/2024] [Accepted: 06/07/2024] [Indexed: 06/10/2024]
Abstract
In the pursuit of enhancing the applications of hydrogen as an energy carrier, this research delved into the utilization of a singular hybrid catalyst capable of performing both dehydrogenation and hydrogenation processes for Liquid Organic Hydrogen Carriers (LOHCs). This study presents the synthesis and characterization of a hybrid catalyst, combining an organometallic pincer complex with Pd-Ru heterostructures supported on γ-alumina. Unlike conventional transition and noble metal nanoparticles, the use of a pincer complex offers exceptional thermal stability due to its aryl backbone, which is advantageous for various endothermic dehydrogenation reactions of hydrocarbons in LOHCs. This pioneering hybrid catalyst is a novel approach, demonstrating a proof of concept. In this study, we utilized the hybrid catalyst to investigate the dehydrogenation and hydrogenation of a lower enthalpic system, specifically the cyclooctane-cyclooctene system. The dehydrogenation of cyclooctane was conducted at 443 K using tertiary butyl ethylene as a sacrificial hydrogen acceptor, while the hydrogenation of cyclooctene reaction catalyzed by Pd-Ru nanostructures occurred at 298 K and 1 atm H2. The results showed successful tandem dehydrogenation-hydrogenation reactions. However, challenges were noted in terms of catalytic activity and recyclability, providing valuable insights for further refinement and optimization.
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Affiliation(s)
- Jyothi Jangir
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
| | - Balaji R Jagirdar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560 012, India
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3
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Huang J, Klahn M, Tian X, Bartling S, Zimina A, Radtke M, Rockstroh N, Naliwajko P, Steinfeldt N, Peppel T, Grunwaldt JD, Logsdail AJ, Jiao H, Strunk J. Fundamental Structural and Electronic Understanding of Palladium Catalysts on Nitride and Oxide Supports. Angew Chem Int Ed Engl 2024; 63:e202400174. [PMID: 38466808 DOI: 10.1002/anie.202400174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/16/2024] [Accepted: 02/22/2024] [Indexed: 03/13/2024]
Abstract
The nature of the support can fundamentally affect the function of a heterogeneous catalyst. For the novel type of isolated metal atom catalysts, sometimes referred to as single-atom catalysts, systematic correlations are still rare. Here, we report a general finding that Pd on nitride supports (non-metal and metal nitride) features a higher oxidation state compared to that on oxide supports (non-metal and metal oxide). Through thorough oxidation state investigations by X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), CO-DRIFTS, and density functional theory (DFT) coupled with Bader charge analysis, it is found that Pd atoms prefer to interact with surface hydroxyl group to form a Pd(OH)x species on oxide supports, while on nitride supports, Pd atoms incorporate into the surface structure in the form of Pd-N bonds. Moreover, a correlation was built between the formal oxidation state and computational Bader charge, based on the periodic trend in electronegativity.
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Affiliation(s)
- Junhao Huang
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Marcus Klahn
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Xinxin Tian
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Key Laboratory of Chemical Biology and Molecular Engineering of Education Ministry, Shanxi University, Taiyuan, 030006, China
| | - Stephan Bartling
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Anna Zimina
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Str. 11, 12489, Berlin, Germany
| | - Nils Rockstroh
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Pawel Naliwajko
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Norbert Steinfeldt
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Tim Peppel
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Jan-Dierk Grunwaldt
- Institute of Catalysis Research and Technology and Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Andrew J Logsdail
- Max Planck-Cardiff Centre on the Fundamentals of Heterogeneous Catalysis (FUNCAT), Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Cardiff, CF10 3AT, United Kingdom
| | - Haijun Jiao
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Jennifer Strunk
- Leibniz Institute for Catalysis e.V., Albert-Einstein-Straße 29a, 18059, Rostock, Germany
- Industrial Chemistry and Heterogeneous Catalysis, Technical University of Munich, Lichtenbergstrße 4, 85748, Garching, Germany
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4
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Barraza Alvarez I, Le T, Hosseini H, Samira S, Beck A, Marlowe J, Montemore MM, Wang B, Christopher P. Bond Selective Photochemistry at Metal Nanoparticle Surfaces: CO Desorption from Pt and Pd. J Am Chem Soc 2024; 146:12431-12443. [PMID: 38661654 DOI: 10.1021/jacs.3c13874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
The use of visible photon fluxes to influence catalytic reactions on metal nanoparticle surfaces has attracted attention based on observations of reaction mechanisms and selectivity not observed under equilibrium heating. These observations suggest that photon fluxes can selectively impact the rates of certain elementary steps, creating nonequilibrium energy distributions among various reaction pathways. However, quantitative studies validating these hypotheses on metal nanoparticle surfaces are lacking. We examine the influence of continuous wave visible photon fluxes on the CO desorption rates from 1 to 2 nm diameter Pt and Pd nanoparticle surfaces supported on γ-Al2O3. Temperature-programmed desorption measurements quantified via diffuse reflectance infrared Fourier transform spectroscopy demonstrate that visible photon fluxes significantly enhanced the rate of CO desorption from Pt nanoparticles in a wavelength-dependent manner. 440 nm photons most efficiently promoted CO desorption from Pt nanoparticle surfaces, aligning with the excitation energy for the interfacial electronic transition within the Pt-CO bond. Conversely, visible photon fluxes had no measurable influence on CO desorption rates from Pd nanoparticle surfaces after accounting for photon-induced heating. Density functional theory calculations demonstrate that the Pt-CO bond exhibits a narrower LUMO resonance, stronger coupling between the photoexcitation and forces induced on the metal-C bond, and vibrational energy dissipation that more effectively couples to desorption as compared to Pd-CO. These results demonstrate the specificity photons provide in facilitating chemical reactions on metal nanoparticle surfaces and substantiate the idea that photon fluxes can steer processes and outcomes of catalytic reactions in ways not achievable by equilibrium heating.
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Affiliation(s)
- Isabel Barraza Alvarez
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Tien Le
- School of Sustainable Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Hajar Hosseini
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70115, United States
| | - Samji Samira
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Arik Beck
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Justin Marlowe
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
| | - Matthew M Montemore
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70115, United States
| | - Bin Wang
- School of Sustainable Chemical, Biological and Materials Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Phillip Christopher
- Department of Chemical Engineering, University of California Santa Barbara, Santa Barbara, California 93106, United States
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5
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Zhang M, He Z, Wang L, Zhang X, Li G. Isomorphous Substitution of Organic Cage Crystal by Pd Nanoclusters for Selective Hydrogenation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308400. [PMID: 37948438 DOI: 10.1002/smll.202308400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/26/2023] [Indexed: 11/12/2023]
Abstract
For supporting active metal, the cavity confinement and mass transfer facilitation lie not in one sack, a trade-off between high activity and good stability of the catalyst is present. Porous organic cages (POCs) are expected to break the trade-off when metal particles are properly loaded. Herein, three organic cages (CC3, RCC3, and FT-RCC3) are employed to support Pd nanoclusters for catalytic hydrogenation. Subnanometer Pd clusters locate differently in different cage frameworks by using the same reverse double-solvents approach. Compared with those encapsulated in the intrinsic cavity of RCC3 and anchored on the outer surface of CC3, the Pd nanoclusters orderly assembled in FT-RCC3 crystal via isomorphous substitution exhibit superior activity, high selectivity, and good stability for semi-hydrogenation of phenylacetylene. Isomorphous substitution of FT-RCC3 crystal by Pd nanoclusters is originated from high crystallization capacity of FT-RCC3 and specific interaction of each Pd nanocluster with four cage windows. Both confinement function and H2 accumulation capacity of FT-RCC3 are fully utilized to support active Pd nanoclusters for efficient selective hydrogenation. The present results provide a new perspective to the heterogeneous catalysis field in terms of crystalizing metal nanoclusters in POC framework and outside the cage for making the best use of both parts.
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Affiliation(s)
- Minghui Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zexing He
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Li Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Xiangwen Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
| | - Guozhu Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, China
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6
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Jiménez JD, Betancourt LE, Danielis M, Zhang H, Zhang F, Orozco I, Xu W, Llorca J, Liu P, Trovarelli A, Rodríguez JA, Colussi S, Senanayake SD. Identification of Highly Selective Surface Pathways for Methane Dry Reforming Using Mechanochemical Synthesis of Pd-CeO 2. ACS Catal 2022; 12:12809-12822. [PMID: 36313524 PMCID: PMC9595205 DOI: 10.1021/acscatal.2c01120] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 08/24/2022] [Indexed: 11/30/2022]
Abstract
The methane dry reforming (DRM) reaction mechanism was explored via mechanochemically prepared Pd/CeO2 catalysts (PdAcCeO2M), which yield unique Pd-Ce interfaces, where PdAcCeO2M has a distinct reaction mechanism and higher reactivity for DRM relative to traditionally synthesized impregnated Pd/CeO2 (PdCeO2IW). In situ characterization and density functional theory calculations revealed that the enhanced chemistry of PdAcCeO2M can be attributed to the presence of a carbon-modified Pd0 and Ce4+/3+ surface arrangement, where distinct Pd-CO intermediate species and strong Pd-CeO2 interactions are activated and sustained exclusively under reaction conditions. This unique arrangement leads to highly selective and distinct surface reaction pathways that prefer the direct oxidation of CH x to CO, identified on PdAcCeO2M using isotope labeled diffuse reflectance infrared Fourier transform spectroscopy and highlighting linear Pd-CO species bound on metallic and C-modified Pd, leading to adsorbed HCOO [1595 cm-1] species as key DRM intermediates, stemming from associative CO2 reduction. The milled materials contrast strikingly with surface processes observed on IW samples (PdCeO2IW) where the competing reverse water gas shift reaction predominates.
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Affiliation(s)
- Juan D. Jiménez
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Luis E. Betancourt
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York11793, United States
| | - Maila Danielis
- Polytechnic
Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Hong Zhang
- Department
of Chemistry, State University of New York
Stony Brook, Stony Brook, New York11794, United States
| | - Feng Zhang
- Department
of Chemistry, State University of New York
Stony Brook, Stony Brook, New York11794, United States
| | - Ivan Orozco
- Department
of Chemistry, State University of New York
Stony Brook, Stony Brook, New York11794, United States
| | - Wenqian Xu
- X-ray
Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois60439, United States
| | - Jordi Llorca
- Department
of Chemical Engineering, Institute of Energy
Technologies, Universitat Politécnica de Catalunya, EEBE, Eduard Maristany 10-14, 08018Barcelona, Spain
| | - Ping Liu
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department
of Chemistry, State University of New York
Stony Brook, Stony Brook, New York11794, United States
| | - Alessandro Trovarelli
- Polytechnic
Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - José A. Rodríguez
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York11793, United States
- Department
of Chemistry, State University of New York
Stony Brook, Stony Brook, New York11794, United States
| | - Sara Colussi
- Polytechnic
Department and INSTM, University of Udine, Via del Cotonificio 108, 33100Udine, Italy
| | - Sanjaya D. Senanayake
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York11793, United States
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7
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Villagra-Soza F, Godoy S, Karelovic A, Jiménez R. Scrutinizing the mechanism of CO2 hydrogenation over Ni, CO and bimetallic NiCo surfaces: Isotopic measurements, operando-FTIR experiments and kinetics modelling. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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8
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Abstract
A large signal of gas-phase CO overlapping with those of adsorbates is often present when investigating catalysts by operando diffuse reflectance FT-IR spectroscopy. Physically removing CO(g) from the IR cell may lead to a fast decay of adsorbate signals. Our work shows that carbonyls adsorbed on metallic Pt sites fully vanished in less than 10 min at 30 °C upon removing CO(g) when redox supports were used. In contrast, a broad band assigned to CO adsorbed on oxidized Pt sites was stable. It was concluded that physically removing CO(g) at room temperature during IR analyses will most likely lead to changes in the distribution of CO(ads) and a misrepresentation of the Pt site speciation, misguiding the development of efficient low-temperature CO oxidation catalysts. A tentative representation of the nature of the Pt phases present depending on the feed composition is also proposed.
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9
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Zavelev DE, Tsodikov MV, Chistyakov AV, Nikolaev SA. A periodic DFT study of CO adsorption over Pd–Cu alloy (111) surfaces. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-021-04635-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Lv H, Qin H, Sun M, Jia F, Huang B, Liu B. Mesoporosity‐Enabled Selectivity of Mesoporous Palladium‐Based Nanocrystals Catalysts in Semihydrogenation of Alkynes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hao Lv
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 China
| | - Huaiyu Qin
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 China
| | - Mingzi Sun
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR
| | - Fengrui Jia
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 China
| | - Bolong Huang
- Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR
| | - Ben Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry Sichuan University Chengdu 610064 China
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11
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Lv H, Qin H, Sun M, Jia F, Huang B, Liu B. Mesoporosity-Enabled Selectivity of Mesoporous Palladium-Based Nanocrystals Catalysts in Semihydrogenation of Alkynes. Angew Chem Int Ed Engl 2021; 61:e202114539. [PMID: 34913234 DOI: 10.1002/anie.202114539] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Indexed: 11/11/2022]
Abstract
We reported mesoporosity engineering as a general strategy to promote semihydrogenation selectivity of palladium (Pd)-based nanobundles catalysts. The best mesoporous PdP displayed full conversion, remarkable activity, excellent selectivity, and high stability in semihydrogenation of 1-phenyl-1-propyne, all of which are remarkably better than commercial Lindlar catalysts. Mechanistic investigations ascribed high semihydrogenation selectivity to continuous crystalline framework and penetrated mesoporous channel of catalysts that weakened the adsorption and interaction capacity of alkenes and thus inhibited over-hydrogenation of alkenes to industrially unfavorable alkanes. Density functional theory calculations further demonstrated that convex crystalline mesoporosity of nanobundles catalysts electronically optimized the coordination environment of Pd active sites and energetically changed hydrogenation trends, resulting in a superior semihydrogenation selectivity to targeted alkenes.
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Affiliation(s)
- Hao Lv
- Sichuan University, College of Chemistry, CHINA
| | - Huaiyu Qin
- Sichuan University, College of Chemistry, CHINA
| | - Mingzi Sun
- The Hong Kong Polytechnic University, Applied Biology and Chemical Technology, CHINA
| | - Fengrui Jia
- Sichuan University, College of Chemistry, CHINA
| | - Bolong Huang
- The Hong Kong Polytechnic University, Applied Biology and Chemical Technology, CHINA
| | - Ben Liu
- Sichuan University, School of Chemistry, 29 Wangjiang Road, 610064, Chengdu, CHINA
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12
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Arrahli A, Kherbeche A, Derrouiche S, Bianchi D. Heats of adsorption of linear CO species on the Pt sites of a 1.2% Pt-2.7% Sn/Al2O3 catalyst before and after reconstruction and ageing processes. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04533-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Jiang M, Wu Q, Yan J, Pan J, Dai Q, Zhan W. Si-doped Al 2O 3 nanosheet supported Pd for catalytic combustion of propane: effects of Si doping on morphology, thermal stability, and water resistance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:56480-56490. [PMID: 34057630 DOI: 10.1007/s11356-021-14646-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Catalytic combustion of propane as typical light alkanes was important for the purification of industrial VOCs and automobile hydrocarbon emissions. Si-doped Al2O3 nanosheet was synthesized by a hydrothermal method, and effects of Si content on the morphology and thermal stability of Al2O3 were investigated. The doping of SiO2 could tune the thickness of Al2O3 nanosheets and significantly improve its thermal stability, the θ phase was still maintained, and the specific surface area was as high as 56.3 m2 g-1 after calcination at 1200 °C. And then the Si-doped Al2O3 nanosheets were used as support of Pd catalysts (Pd/Si-Al2O3 nanosheets) for catalytic combustion of propane, especially Pd/3.6Si-Al2O3 nanosheets, which presented high activity, stability, and resistance to sintering and H2O due to the promotion of Si on the thermal stability of Al2O3 and the stabilization (dispersion, isolation, and strong interaction) of PdOx species.
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Affiliation(s)
- Mingxiang Jiang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Qingqing Wu
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jiaorong Yan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China
| | - Jun Pan
- Nanjing Engineering Institute of Aircraft Systems, AVIC, Nanjing, 211106, People's Republic of China
| | - Qiguang Dai
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai, 200237, People's Republic of China.
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14
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Chen M, Yan Y, Gebre M, Ordonez C, Liu F, Qi L, Lamkins A, Jing D, Dolge K, Zhang B, Heintz P, Shoemaker DP, Wang B, Huang W. Thermal Unequilibrium of PdSn Intermetallic Nanocatalysts: From In Situ Tailored Synthesis to Unexpected Hydrogenation Selectivity. Angew Chem Int Ed Engl 2021; 60:18309-18317. [PMID: 34114306 DOI: 10.1002/anie.202106515] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Indexed: 11/10/2022]
Abstract
Effective control on chemoselectivity in the catalytic hydrogenation of C=O over C=C bonds is uncommon with Pd-based catalysts because of the favored adsorption of C=C bonds on Pd surface. Here we report a unique orthorhombic PdSn intermetallic phase with unprecedented chemoselectivity toward C=O hydrogenation. We observed the formation and metastability of this PdSn phase in situ. During a natural cooling process, the PdSn nanoparticles readily revert to the favored Pd3 Sn2 phase. Instead, using a thermal quenching method, we prepared a pure-phase PdSn nanocatalyst. PdSn shows an >96 % selectivity toward hydrogenating C=O bonds of various α,β-unsaturated aldehydes, highest in reported Pd-based catalysts. Further study suggests that efficient quenching prevents the reversion from PdSn- to Pd3 Sn2 -structured surface, the key to the desired catalytic performance. Density functional theory calculations and analysis of reaction kinetics provide an explanation for the observed high selectivity.
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Affiliation(s)
- Minda Chen
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Yu Yan
- School of Chemical, Biological, and Materials Engineering, The University of Oklahoma, Norman, OK, 73019, USA
| | - Mebatsion Gebre
- Department of Materials Science and Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Claudio Ordonez
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, FL, 32816, USA
| | - Long Qi
- Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011, USA
| | - Andrew Lamkins
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Dapeng Jing
- Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011, USA.,Materials Analysis and Research Laboratory, Iowa State University, Ames, IA, 50011, USA
| | - Kevin Dolge
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Biying Zhang
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Patrick Heintz
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA
| | - Daniel P Shoemaker
- Department of Materials Science and Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Bin Wang
- School of Chemical, Biological, and Materials Engineering, The University of Oklahoma, Norman, OK, 73019, USA
| | - Wenyu Huang
- Department of Chemistry, Iowa State University, Ames, IA, 50011, USA.,Ames Laboratory, U.S. Department of Energy, Ames, IA, 50011, USA
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15
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Elgayyar T, Atwi R, Tuel A, Meunier FC. Contributions and limitations of IR spectroscopy of CO adsorption to the characterization of bimetallic and nanoalloy catalysts. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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16
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Ahmad MS, Ab Rahim MH, Alqahtani TM, Witoon T, Lim JW, Cheng CK. A review on advances in green treatment of glycerol waste with a focus on electro-oxidation pathway. CHEMOSPHERE 2021; 276:130128. [PMID: 33714877 DOI: 10.1016/j.chemosphere.2021.130128] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/20/2021] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
Over the past decades, research efforts are being devoted into utilizing the biomass waste as a major source of green energy to maintain the economic, environmental, and social sustainability. Specifically, there is an emerging consensus on the significance of glycerol (an underutilised waste from biodiesel industry) as a cheap, non-toxic, and renewable source for valuable chemicals synthesis. There are numerous methods enacted to convert this glycerol waste to tartronic acid, mesoxalic acid, glyceraldehyde, dihydroxyacetone, oxalic acid and so on. Among these, the green electro-oxidation technique is one of the techniques that possesses potential for industrial application due to advantages such as non-toxicity process, fast response, and lower energy consumption. The current review covers the general understanding on commonly used techniques for alcohol (C1 & C2) conversion, with a specific insight on glycerol (C3) electro-oxidation (GOR). Since catalysts are the backbone of chemical reaction, they are responsible for the overall economy prospect of any processes. To this end, a comprehensive review on catalysts, which include noble metals, non-noble metals, and non-metals anchored over various supports are incorporated in this review. Moreover, a fundamental insight into the development of future electrocatalysts for glycerol oxidation along with products analysis is also presented.
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Affiliation(s)
- Muhammad Sheraz Ahmad
- Department of Chemical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300, Gambang, Pahang, Malaysia
| | - Mohd Hasbi Ab Rahim
- Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, Malaysia
| | | | - Thongthai Witoon
- Department of Chemical Engineering, Kasetsart University, Bangkok, Thailand
| | - Jun-Wei Lim
- School of Chemical Sciences, Universiti Teknologi PETRONAS, Tronoh, Perak, Malaysia
| | - Chin Kui Cheng
- Department of Chemical Engineering, College of Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
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17
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Chen M, Yan Y, Gebre M, Ordonez C, Liu F, Qi L, Lamkins A, Jing D, Dolge K, Zhang B, Heintz P, Shoemaker DP, Wang B, Huang W. Thermal Unequilibrium of PdSn Intermetallic Nanocatalysts: From In Situ Tailored Synthesis to Unexpected Hydrogenation Selectivity. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106515] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Minda Chen
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Yu Yan
- School of Chemical, Biological, and Materials Engineering The University of Oklahoma Norman OK 73019 USA
| | - Mebatsion Gebre
- Department of Materials Science and Engineering University of Illinois Urbana-Champaign Urbana IL 61801 USA
| | - Claudio Ordonez
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT) NanoScience Technology Center (NSTC) University of Central Florida Orlando FL 32816 USA
| | - Long Qi
- Ames Laboratory U.S. Department of Energy Ames IA 50011 USA
| | - Andrew Lamkins
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Dapeng Jing
- Ames Laboratory U.S. Department of Energy Ames IA 50011 USA
- Materials Analysis and Research Laboratory Iowa State University Ames IA 50011 USA
| | - Kevin Dolge
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Biying Zhang
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Patrick Heintz
- Department of Chemistry Iowa State University Ames IA 50011 USA
| | - Daniel P. Shoemaker
- Department of Materials Science and Engineering University of Illinois Urbana-Champaign Urbana IL 61801 USA
| | - Bin Wang
- School of Chemical, Biological, and Materials Engineering The University of Oklahoma Norman OK 73019 USA
| | - Wenyu Huang
- Department of Chemistry Iowa State University Ames IA 50011 USA
- Ames Laboratory U.S. Department of Energy Ames IA 50011 USA
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18
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A Comparison of Experimental Procedures for the Application of Infrared Spectroscopy to Probe the Surface Morphology of an Alumina-Supported Palladium Catalyst. Top Catal 2021. [DOI: 10.1007/s11244-021-01435-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractStructure/function relationships in heterogeneous catalysis play an important role in catalyst design strategies. The combination of chemisorption of suitable probe molecules alongside application of infrared spectroscopy is an established technique for providing information on the metal crystallite morphology of supported metal catalysts. Following a review of key literature on this topic, a variety of experimental arrangements that may be adopted for this task are examined. Specifically, the adsorption of CO over a 5wt% Pd/Al2O3 catalyst is investigated using transmission and diffuse reflectance sampling options and two research grade spectrometers. Although comparable spectra are obtained on all the platforms examined, differences are noted. In particular, temperature-programmed IR spectroscopy on one platform enables resolution of two features assigned to linear CO bound to the Pd particles. The relevance of this sub-division of terminal sites with respect to selective hydrogenation reactions is briefly considered.
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19
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Fabrication of PdZn alloy catalysts supported on ZnFe composite oxide for CO 2 hydrogenation to methanol. J Colloid Interface Sci 2021; 597:260-268. [PMID: 33872882 DOI: 10.1016/j.jcis.2021.03.135] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/11/2021] [Accepted: 03/23/2021] [Indexed: 11/23/2022]
Abstract
The conversion of CO2 to methanol is of great significance for providing a means of CO2 fixation and the development of future fuels. Supported Pd catalysts have been demonstrated to be active for CO2 hydrogenation to methanol and PdZn alloy plays a key role in this reaction. Therefore, using ZnO-enriched support to increase the amount of nanometric PdZn alloy particles on the surface is an effective strategy to develop ideal catalysts. Herein, we fabricated a PdZn alloy catalyst supported on ZnO-enriched ZnFe2O4 spinel for efficient CO2 hydrogenation to methanol. The amount of formed PdZn alloy and catalyst structure influenced by ZnO concentration on ZnFe2O4 were explored to obtain the best Pd-Z1FO catalyst, which achieves a methanol space-time yield (STY) of 593 gkgcat-1h-1 (12 ggPd-1h-1) with CO2 conversion of 14% under reaction conditions of 290 °C, 4.5 MPa and 21600 mLg-1h-1. Furthermore, the amount of exposed PdZn alloy sites were measured by using CO-pulse chemisorption and we find a linearity between methanol production rate and PdZn alloy sites.
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20
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Chen H, Yang SZ, Yang Z, Lin W, Xu H, Wan Q, Suo X, Wang T, Jiang DE, Fu J, Dai S. Sinter-Resistant Nanoparticle Catalysts Achieved by 2D Boron Nitride-Based Strong Metal-Support Interactions: A New Twist on an Old Story. ACS CENTRAL SCIENCE 2020; 6:1617-1627. [PMID: 32999937 PMCID: PMC7517410 DOI: 10.1021/acscentsci.0c00822] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Indexed: 05/12/2023]
Abstract
Strong metal-support interaction (SMSI) is recognized as a pivotal strategy in hetereogeneous catalysis to prevent the sintering of metal nanoparticles (NPs), but issues including restriction of supports to reducible metal oxides, nonporous architecture, sintering by thermal treatment at >800 °C, and unstable nature limit their practical application. Herein, the construction of non-oxide-derived SMSI nanocatalysts based on highly crystalline and nanoporous hexagonal boron nitride (h-BN) 2D materials was demonstrated via in situ encapsulation and reduction using NaBH4, NaNH2, and noble metal salts as precursors. The as-prepared nanocatalysts exhibited robust thermal stability and sintering resistance to withstand thermal treatment at up to 950 °C, rendering them with high catalytic efficiency and durability in CO oxidation even in the presence of H2O and hydrocarbon simulated to realistic exhaust systems. More importantly, our generic strategy offers a novel and efficient avenue to design ultrastable hetereogeneous catalysts with diverse metal and support compositions and architectures.
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Affiliation(s)
- Hao Chen
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Shi-Ze Yang
- Eyring
Materials Center, Arizona State University, Tempe, Arizona 85257, United States
| | - Zhenzhen Yang
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
- (Zhenzhen Yang)
| | - Wenwen Lin
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haidi Xu
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Qiang Wan
- Department
of Chemistry, University of California, Riverside, California 92521, United States
- State Key Laboratory
of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 35002, China
| | - Xian Suo
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Tao Wang
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - De-en Jiang
- Department
of Chemistry, University of California, Riverside, California 92521, United States
| | - Jie Fu
- Key
Laboratory of Biomass Chemical Engineering of Ministry of Education,
College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
- (Jie Fu)
| | - Sheng Dai
- Chemical
Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
- (Sheng Dai)
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21
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Mukhi P, Roy S. Bimetallic Pd‐Sn Nanocatalysts for Selective Synthesis of Amines and Imines in Water. ChemistrySelect 2020. [DOI: 10.1002/slct.201903671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Priyabrata Mukhi
- Organometallics and Catalysis LaboratorySchool of Basic Sciences, Indian Institute of Technology Bhubaneswar Argul, Khurda 752050 Odisha India
- Department of Education inScience and Mathematics Regional Institute of Education Bhubneshwar 751022 Odisha India
| | - Sujit Roy
- Organometallics and Catalysis LaboratorySchool of Basic Sciences, Indian Institute of Technology Bhubaneswar Argul, Khurda 752050 Odisha India
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22
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Manrique R, Rodríguez-Pereira J, Rincón-Ortiz SA, Bravo-Suárez JJ, Baldovino-Medrano VG, Jiménez R, Karelovic A. The nature of the active sites of Pd–Ga catalysts in the hydrogenation of CO2 to methanol. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00956c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The Pd/Ga ratio influences the phases formed during catalysis. The best catalyst necessitates the formation of Pd–Ga intermetallic compounds and also a low content of Ga2O3, whose excess tend to block surface sites.
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Affiliation(s)
- Raydel Manrique
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Chile
| | - Jhonatan Rodríguez-Pereira
- Centro de Investigaciones en Catálisis
- Escuela de Ingeniería Química
- Universidad Industrial de Santander
- Colombia
| | - Sergio A. Rincón-Ortiz
- Laboratorio Central de Ciencia de Superficies
- Universidad Industrial de Santander
- Colombia
| | - Juan J. Bravo-Suárez
- Chemical & Petroleum Engineering Department
- The University of Kansas
- Lawrence
- USA
- Center for Environmentally Beneficial Catalysis
| | - Víctor G. Baldovino-Medrano
- Centro de Investigaciones en Catálisis
- Escuela de Ingeniería Química
- Universidad Industrial de Santander
- Colombia
- Laboratorio Central de Ciencia de Superficies
| | - Romel Jiménez
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Chile
- Unidad de Desarrollo Tecnológico (UDT)
| | - Alejandro Karelovic
- Carbon and Catalysis Laboratory (CarboCat)
- Department of Chemical Engineering
- Universidad de Concepción
- Chile
- Unidad de Desarrollo Tecnológico (UDT)
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23
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Arrahli A, Kherbeche A, Bianchi D. Surface reconstruction of Pt–Sn nanoparticles supported on Al2O3 in the presence of carbon monoxide. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3686-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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A Contribution to the Experimental Microkinetic Approach of Gas/Solid Heterogeneous Catalysis: Measurement of the Individual Heats of Adsorption of Coadsorbed Species by Using the AEIR Method. Catalysts 2018. [DOI: 10.3390/catal8070265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The two first surface elementary steps of a gas/solid catalytic reaction are the adsorption/desorption at least one of the reactants leading to its adsorption equilibrium which can be or not disturbed by the others surface elementary steps leading to the products. The variety of the sites of a conventional catalyst may lead to the formation of different coadsorbed species such as linear, bridged and threefold coordinated species for the adsorption of CO on supported metal particles. The aim of the present article is to summarize works performed in the last twenty years for the development and applications of an analytical method named Adsorption Equilibrium InfraRed spectroscopy (AEIR) for the measurement of the individual heats of adsorption of coadsorbed species and for the validation of mathematical expressions for their adsorption coefficients and adsorption models. The method uses the evolution of the IR bands characteristic of each of coadsorbed species during the increase in the adsorption temperature in isobaric conditions. The presentation shows that the versatility of AEIR leads to net advantages as compared to others conventional methods particularly in the context of the microkinetic approach of catalytic reactions.
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25
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Meunier F, Maffre M, Schuurman Y, Colussi S, Trovarelli A. Acetylene semi-hydrogenation over Pd-Zn/CeO2: Relevance of CO adsorption and methanation as descriptors of selectivity. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2017.11.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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26
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Fabrication of Crumpled Ball-Like Nickel Doped Palladium-Iron Oxide Hybrid Nanoparticles with Controlled Morphology as Effective Catalyst for Suzuki–Miyaura Coupling Reaction. Catalysts 2017. [DOI: 10.3390/catal7090247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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27
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Verduyckt J, Van Hoof M, De Schouwer F, Wolberg M, Kurttepeli M, Eloy P, Gaigneaux EM, Bals S, Kirschhock CEA, De Vos DE. PdPb-Catalyzed Decarboxylation of Proline to Pyrrolidine: Highly Selective Formation of a Biobased Amine in Water. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02561] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jasper Verduyckt
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
| | - Maarten Van Hoof
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
| | - Free De Schouwer
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
| | - Marike Wolberg
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
| | - Mert Kurttepeli
- Electron
Microscopy for Materials Science, UA—University of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
| | | | | | - Sara Bals
- Electron
Microscopy for Materials Science, UA—University of Antwerp, Groenenborgerlaan
171, 2020 Antwerp, Belgium
| | - Christine E. A. Kirschhock
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
| | - Dirk E. De Vos
- Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems, KU Leuven—University of Leuven, Leuven Chem&Tech, Celestijnenlaan 200F, Post Box 2461, 3001 Heverlee, Belgium
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