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Mao X, Ou M, Zhao W, Shi M, Zheng L. Enhanced durability of Pd/CeO 2-C via metal-support interaction for oxygen reduction reaction. NANOTECHNOLOGY 2024; 35:475701. [PMID: 39173656 DOI: 10.1088/1361-6528/ad726c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 08/22/2024] [Indexed: 08/24/2024]
Abstract
It is a challenge to improve the long-term durability of Pd-based electrocatalysts for oxygen reduction reaction (ORR) in fuel cells. Herein, Pd/CeO2-C-T (T= 800 °C, 900 °C and 1000 °C) hybrid catalysts with metal-support interaction are prepared from Ce-based metal organic framework precursor. Abundant tiny CeO2nanoclusters are produced to form nanorod structures with uniformly distributed carbon through a calcination process. Meanwhile, both carbon and CeO2nanoclusters have good contact with the following deposited surfactant-free Pd nanoclusters. Benefited from the large specific surface area, good conductivity and structure integrity, Pd/CeO2-C-900 exhibits the best electrocatalytic ORR performance: onset potential of 0.968 V and half-wave potential of 0.857 V, outperforming those obtained on Pd/C counterpart. In addition, the half-wave potential only shifts 7 mV after 6000 cycles of accelerated durability testing, demonstrating robust durability.
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Affiliation(s)
- Xinbiao Mao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, People's Republic of China
| | - Mingyu Ou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, People's Republic of China
| | - Wenjun Zhao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, People's Republic of China
| | - Meiqin Shi
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, People's Republic of China
| | - Lingxia Zheng
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, People's Republic of China
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2
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Gashnikova D, Maurer F, Sauter E, Bernart S, Jelic J, Dolcet P, Maliakkal CB, Wang Y, Wöll C, Studt F, Kübel C, Casapu M, Grunwaldt JD. Highly Active Oxidation Catalysts through Confining Pd Clusters on CeO 2 Nano-Islands. Angew Chem Int Ed Engl 2024; 63:e202408511. [PMID: 38877822 DOI: 10.1002/anie.202408511] [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: 05/05/2024] [Revised: 06/06/2024] [Accepted: 06/07/2024] [Indexed: 06/16/2024]
Abstract
CeO2-supported noble metal clusters are attractive catalytic materials for several applications. However, their atomic dispersion under oxidizing reaction conditions often leads to catalyst deactivation. In this study, the noble metal cluster formation threshold is rationally adjusted by using a mixed CeO2-Al2O3 support. The preferential location of Pd on CeO2 islands leads to a high local surface noble metal concentration and promotes the in situ formation of small Pd clusters at a rather low noble metal loading (0.5 wt %), which are shown to be the active species for CO conversion at low temperatures. As elucidated by complementary in situ/operando techniques, the spatial separation of CeO2 islands on Al2O3 confines the mobility of Pd, preventing the full redispersion or the formation of larger noble metal particles and maintaining a high CO oxidation activity at low temperatures. In a broader perspective, this approach to more efficiently use the noble metal can be transferred to further systems and reactions in heterogeneous catalysis.
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Affiliation(s)
- Daria Gashnikova
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Florian Maurer
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Eric Sauter
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Sarah Bernart
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Jelena Jelic
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Paolo Dolcet
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
- Current address: Department of Chemical Sciences, University of Padova, via Francesco Marzolo 1, 35131, Padova, Italy
| | - Carina B Maliakkal
- Institute of Nanotechnology (INT) and, Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Yuemin Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christof Wöll
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christian Kübel
- Institute of Nanotechnology (INT) and, Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Institute of Materials Research, Technical University Darmstadt (TUDa), Peter-Grünberg-Straße 2, 64287, Darmstadt, Germany
| | - Maria Casapu
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
| | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstraße 20, 76131, Karlsruhe, Germany
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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3
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Chen C, Ikemoto S, Yokota GI, Higuchi K, Muratsugu S, Tada M. Low-temperature redox activity and alcohol ammoxidation performance on Cu- and Ru-incorporated ceria catalysts. Phys Chem Chem Phys 2024; 26:17979-17990. [PMID: 38814159 DOI: 10.1039/d4cp01432d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Transition-metal-incorporated cerium oxides with Cu and a small amount of Ru (Cu0.18Ru0.05CeOz) were prepared, and their low-temperature redox performance (<423 K) and catalytic alcohol ammoxidation performance were investigated. Temperature-programmed reduction/oxidation under H2/O2 and in situ X-ray absorption fine structure revealed the reversible redox behavior of the three metals, Cu, Ru, and Ce, in the low-temperature redox processes. The initially reduced Ru species decreased the reduction temperature of Cu oxides and promoted the activation of Ce species. Cu0.18Ru0.05CeOz selectively catalyzed the production of benzonitrile in the ammoxidation of benzyl alcohol. H2-treated Cu0.18Ru0.05CeOz showed a slightly larger initial conversion of benzyl alcohol than O2-treated Cu0.18Ru0.05CeOz, suggesting that the reduced structure of Cu0.18Ru0.05CeOz was active for the ammoxidation. The integration of both Cu and Ru resulted in the efficient promotion of ammoxidation, in which the Ru species were involved in the conversion of benzyl alcohol and Cu species were required for selective production of benzonitrile.
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Affiliation(s)
- Chaoqi Chen
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
| | - Satoru Ikemoto
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
| | - Gen-Ichi Yokota
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
| | - Kimitaka Higuchi
- Institute of Materials and Systems for Sustainability, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
- Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
- Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
- Research Center for Materials Science (RCMS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.
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4
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Chen S, Pleßow PN, Yu Z, Sauter E, Caulfield L, Nefedov A, Studt F, Wang Y, Wöll C. Structure and Chemical Reactivity of Y-Stabilized ZrO 2 Surfaces: Importance for the Water-Gas Shift Reaction. Angew Chem Int Ed Engl 2024; 63:e202404775. [PMID: 38758087 DOI: 10.1002/anie.202404775] [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: 03/11/2024] [Revised: 04/29/2024] [Accepted: 04/30/2024] [Indexed: 05/18/2024]
Abstract
The surface structure and chemical properties of Y-stabilized zirconia (YSZ) have been subjects of intense debate over the past three decades. However, a thorough understanding of chemical processes occurring at YSZ powders faces significant challenges due to the absence of reliable reference data acquired for well-controlled model systems. Here, we present results from polarization-resolved infrared reflection absorption spectroscopy (IRRAS) obtained for differently oriented, Y-doped ZrO2 single-crystal surfaces after exposure to CO and D2O. The IRRAS data reveal that the polar YSZ(100) surface undergoes reconstruction, characterized by an unusual, red-shifted CO band at 2132 cm-1. Density functional theory calculations allowed to relate this unexpected observation to under-coordinated Zr4+ cations in the vicinity of doping-induced O vacancies. This reconstruction leads to a strongly increased chemical reactivity and water spontaneously dissociates on YSZ(100). The latter, which is an important requirement for catalysing the water-gas-shift (WGS) reaction, is absent for YSZ(111), where only associative adsorption was observed. Together with a novel analysis Scheme these reference data allowed for an operando characterisation of YSZ powders using DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy). These findings facilitate rational design and tuning of YSZ-based powder materials for catalytic applications, in particular CO oxidation and the WGS reaction.
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Affiliation(s)
- Shuang Chen
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Philipp N Pleßow
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Zairan Yu
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Eric Sauter
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Lachlan Caulfield
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Alexei Nefedov
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry (ICTP), Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76131, Karlsruhe, Germany
| | - Yuemin Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
| | - Christof Wöll
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344, Eggenstein-Leopoldshafen, Germany
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5
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Moxon S, Symington AR, Tse JS, Flitcroft JM, Skelton JM, Gillie LJ, Cooke DJ, Parker SC, Molinari M. Composition-dependent morphologies of CeO 2 nanoparticles in the presence of Co-adsorbed H 2O and CO 2: a density functional theory study. NANOSCALE 2024; 16:11232-11249. [PMID: 38779821 DOI: 10.1039/d4nr01296h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Catalytic activity is affected by surface morphology, and specific surfaces display greater activity than others. A key challenge is to define synthetic strategies to enhance the expression of more active surfaces and to maintain their stability during the lifespan of the catalyst. In this work, we outline an ab initio approach, based on density functional theory, to predict surface composition and particle morphology as a function of environmental conditions, and we apply this to CeO2 nanoparticles in the presence of co-adsorbed H2O and CO2 as an industrially relevant test case. We find that dissociative adsorption of both molecules is generally the most favourable, and that the presence of H2O can stabilise co-adsorbed CO2. We show that changes in adsorption strength with temperature and adsorbate partial pressure lead to significant changes in surface stability, and in particular that co-adsorption of H2O and CO2 stabilizes the {100} and {110} surfaces over the {111} surface. Based on the changes in surface free energy induced by the adsorbed species, we predict that cuboidal nanoparticles are favoured in the presence of co-adsorbed H2O and CO2, suggesting that cuboidal particles should experience a lower thermodynamic driving force to reconstruct and thus be more stable as catalysts for processes involving these species.
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Affiliation(s)
- Samuel Moxon
- Department of Physical and Life Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Adam R Symington
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Joshua S Tse
- Department of Physical and Life Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Joseph M Flitcroft
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK
| | - Jonathan M Skelton
- Department of Chemistry, University of Manchester, Manchester, M13 9PL, UK
| | - Lisa J Gillie
- Department of Physical and Life Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - David J Cooke
- Department of Physical and Life Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
| | - Stephen C Parker
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Marco Molinari
- Department of Physical and Life Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK.
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6
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Shirayama K, Jin X, Nozaki K. Selective Hydrogenation of Aldehydes under Syngas Using CeO 2-Supported Au Nanoparticle Catalyst. J Am Chem Soc 2024; 146:14086-14094. [PMID: 38634713 DOI: 10.1021/jacs.4c02531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Chemoselective hydrogenation of aldehydes to alcohols is of importance in synthetic chemistry. Here, we report a reusable CeO2-supported Au nanoparticle catalyst for the selective hydrogenation of aldehydes using syngas as the hydrogen source for which CO in syngas works as a site blocker to prevent side reactions. In particular, the hydrogenation of aldehydes with an easily reducible alkene, alkyne, or halogen moiety under syngas gave the corresponding alcohols with high selectivity, while the hydrogenation under pure hydrogen resulted in overreduction or dehalogenation. Of particular interest is that CO works as a site blocker but does not affect the hydrogenation rate significantly. A potential application of the present catalyst system was demonstrated by the conversion of terminal alkenes to alcohols via a one-pot hydroformylation/hydrogenation sequence.
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Affiliation(s)
- Kotaro Shirayama
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Xiongjie Jin
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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7
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Gallucci N, Appavou MS, Cowieson N, D'Errico G, Di Girolamo R, Lettieri S, Sica F, Vitiello G, Paduano L. Ordered hierarchical superlattice amplifies coated-CeO 2 nanoparticles luminescence. J Colloid Interface Sci 2024; 659:926-935. [PMID: 38219311 DOI: 10.1016/j.jcis.2024.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Achieving a controlled preparation of nanoparticle superstructures with spatially periodic arrangement, also called superlattices, is one of the most intriguing and open questions in soft matter science. The interest in such regular superlattices originates from the potentialities in tailoring the physicochemical properties of the individual constituent nanoparticles, eventually leading to emerging behaviors and/or functionalities that are not exhibited by the initial building blocks. Despite progress, it is currently difficult to obtain such ordered structures; the influence of parameters, such as size, softness, interaction potentials, and entropy, are neither fully understood yet and not sufficiently studied for 3D systems. In this work, we describe the synthesis and characterization of spatially ordered hierarchical structures of coated cerium oxide nanoparticles in water suspension prepared by a bottom-up approach. Covering the CeO2 surface with amphiphilic molecules having chains of appropriate length makes it possible to form ordered structures in which the particles occupy well-defined positions. In the present case superlattice arrangement is accompanied by an improvement in photoluminescence (PL) efficiency, as an increase in PL intensity of the superlattice structure of up to 400 % compared with that of randomly dispersed nanoparticles was observed. To the best of our knowledge, this is one of the first works in the literature in which the coexistence of 3D structures in solution, such as face-centered cubic (FCC) and Frank-Kasper (FK) phases, of semiconductor nanoparticles have been related to their optical properties.
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Affiliation(s)
- Noemi Gallucci
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Marie-Sousai Appavou
- Jülich Center for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Nathan Cowieson
- Diamond Light Source, Didcot, Oxfordshire, England, United Kingdom
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Stefano Lettieri
- Department of Physics, University of Naples Federico II, Via Cupa Cintia 21, 80126 Naples, Italy
| | - Filomena Sica
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Giuseppe Vitiello
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy; Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy.
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8
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Ahasan MR, Wang R. CeO 2 nanorods supported CuO x-RuO x bimetallic catalysts for low temperature CO oxidation. J Colloid Interface Sci 2024; 654:1378-1392. [PMID: 37918097 DOI: 10.1016/j.jcis.2023.10.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 09/30/2023] [Accepted: 10/21/2023] [Indexed: 11/04/2023]
Abstract
Bimetallic catalysts often outperform monometallic catalysts due to changeable structural orientation, synergistic effects, and integration of two different metal or metal oxide properties. Here, a series of CeO2 nanorods (NR) supported bimetallic CuOx and RuOx catalysts (Cu: Ru ratios of 9:1, 7:3, and 5:5) were prepared using a wet impregnation method. In situ DRIFTS, H2 temperature programmed reduction (H2-TPR), CO temperature programmed desorption (CO-TPD), and other characterization techniques were used to investigate the effect of the Cu:Ru ratio on the activity of low-temperature CO oxidation. Among three catalysts, CeO2 NR supported 7 wt% Cu-3 wt% Ru catalyst after a reduction activation treatment showed the best performance with 100 % CO conversion at 166 °C and the lowest activation energy of 18.37 kJ mol-1. Raman and XPS profiles revealed that the origin of the superior performance is at least partially related to the high surface oxygen vacancy concentration and other distinct oxygen species (physi-/chemi-sorbed oxygen and bulk lattice oxygen), leading to outstanding adsorption and oxidation property of CO.
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Affiliation(s)
- Md Robayet Ahasan
- Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, United States
| | - Ruigang Wang
- Department of Metallurgical and Materials Engineering, The University of Alabama, Tuscaloosa, AL 35487, United States.
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9
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Zhang X, Liu T, Zhu L, Guan J, Lu Y, Keal TW, Buckeridge J, Catlow CRA, Sokol AA. Bulk and Surface Contributions to Ionisation Potentials of Metal Oxides. Angew Chem Int Ed Engl 2023; 62:e202308411. [PMID: 37503936 PMCID: PMC10953407 DOI: 10.1002/anie.202308411] [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: 06/14/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 07/29/2023]
Abstract
Determining the absolute band edge positions in solid materials is crucial for optimising their performance in wide-ranging applications including photocatalysis and electronic devices. However, obtaining absolute energies is challenging, as seen in CeO2 , where experimental measurements show substantial discrepancies in the ionisation potential (IP). Here, we have combined several theoretical approaches, from classical electrostatics to quantum mechanics, to elucidate the bulk and surface contributions to the IP of metal oxides. We have determined a theoretical bulk contribution to the IP of stoichiometric CeO2 of only 5.38 eV, while surface orientation results in intrinsic IP variations ranging from 4.2 eV to 8.2 eV. Highly tuneable IPs were also found in TiO2 , ZrO2 , and HfO2 , in which surface polarisation plays a pivotal role in long-range energy level shifting. Our analysis, in addition to rationalising the observed range of experimental results, provides a firm basis for future interpretations of experimental and computational studies of oxide band structures.
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Affiliation(s)
- Xingfan Zhang
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
| | - Taifeng Liu
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid NanomaterialsHenan University475004KaifengChina
| | - Lei Zhu
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
| | - Jingcheng Guan
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
| | - You Lu
- Scientific Computing DepartmentSTFC Daresbury LaboratoryWA4 4ADWarringtonCheshireUK
| | - Thomas W. Keal
- Scientific Computing DepartmentSTFC Daresbury LaboratoryWA4 4ADWarringtonCheshireUK
| | - John Buckeridge
- School of EngineeringLondon South Bank UniversitySE1 OAALondonUK
| | - C. Richard A. Catlow
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
- School of ChemistryCardiff UniversityPark PlaceCF10 1ATCardiffUK
| | - Alexey A. Sokol
- Kathleen Lonsdale Materials ChemistryDepartment of ChemistryUniversity College LondonWC1H 0AJLondonUK
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10
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Komiyama M. Ce-based solid-phase catalysts for phosphate hydrolysis as new tools for next-generation nanoarchitectonics. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2250705. [PMID: 37701758 PMCID: PMC10494760 DOI: 10.1080/14686996.2023.2250705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/06/2023] [Accepted: 08/11/2023] [Indexed: 09/14/2023]
Abstract
This review comprehensively covers synthetic catalysts for the hydrolysis of biorelevant phosphates and pyrophosphates, which bridge between nanoarchitectonics and biology to construct their interdisciplinary hybrids. In the early 1980s, remarkable catalytic activity of Ce4+ ion for phosphate hydrolysis was found. More recently, this finding has been extended to Ce-based solid catalysts (CeO2 and Ce-based metal-organic frameworks (MOFs)), which are directly compatible with nanoarchitectonics. Monoesters and triesters of phosphates, as well as pyrophosphates, were effectively cleaved by these catalysts. With the use of either CeO2 nanoparticles or elegantly designed Ce-based MOF, highly stable phosphodiester linkages were also hydrolyzed. On the surfaces of all these solid catalysts, Ce4+ and Ce3+ coexist and cooperate for the catalysis. The Ce4+ activates phosphate substrates as a strong acid, whereas the Ce3+ provides metal-bound hydroxide as an eminent nucleophile. Applications of these Ce-based catalysts to practical purposes are also discussed.
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Affiliation(s)
- Makoto Komiyama
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo, Japan
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11
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Hao X, Zhang X, Xu Y, Zhou Y, Wei T, Hu Z, Wu L, Feng X, Zhang J, Liu Y, Yin D, Ma S, Xu B. Atomic-scale insights into the interfacial charge transfer in a NiO/CeO 2 heterostructure for electrocatalytic hydrogen evolution. J Colloid Interface Sci 2023; 643:282-291. [PMID: 37068362 DOI: 10.1016/j.jcis.2023.04.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 05/12/2023]
Abstract
To understand the underlying mechanism of the interfacial charge transfer and local chemical state variation in the nonprecious-based hydrogen evolution reaction (HER) electrocatalysts, a model system of the NiO/CeO2 heterostructure was chosen for investigation using a combination of the advanced electron microscopic characterization and first-principles calculations. The results directly proved that interfacial charge transfer occurs from Ni to Ce, leading to reduction in the valence state of Ce and increased formation of VO. This would optimize ΔGH* and facilitate the hydrogen evolution process, resulting in outstanding HER performance in 1 M KOH with a low overpotential of 99 mV at the current density of 10 mA•cm-2 and a modest Tafel slope of 78.4 mV•dec-1 for the NiO/CeO2 heterostructure sample. Therefore, the improved HER performance could be attributed to the synergistic coupling interactions and electron redistribution at the interface of NiO and CeO2. These results concretely demonstrate the direct determination of the interfacial structure of the heterostructure and provide atomistic insights to unravel the underlying mechanism of interfacial charge transfer induced HER performance improvement.
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Affiliation(s)
- Xiaodong Hao
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China.
| | - Xishuo Zhang
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China; School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yang Xu
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China; School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yuhao Zhou
- School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Tingting Wei
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Zhuangzhuang Hu
- School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Lei Wu
- School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Xinyi Feng
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China; School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Jin Zhang
- School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yi Liu
- School of Materials Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Deqiang Yin
- College of Aerospace Engineering, Chongqing University, Chongqing 400044, China
| | - Shufang Ma
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China
| | - Bingshe Xu
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science & Technology, Xi'An 710021, China; Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan 030024, China
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12
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Muravev V, Parastaev A, van den Bosch Y, Ligt B, Claes N, Bals S, Kosinov N, Hensen EJM. Size of cerium dioxide support nanocrystals dictates reactivity of highly dispersed palladium catalysts. Science 2023; 380:1174-1179. [PMID: 37319196 DOI: 10.1126/science.adf9082] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
The catalytic performance of heterogeneous catalysts can be tuned by modulation of the size and structure of supported transition metals, which are typically regarded as the active sites. In single-atom metal catalysts, the support itself can strongly affect the catalytic properties. Here, we demonstrate that the size of cerium dioxide (CeO2) support governs the reactivity of atomically dispersed palladium (Pd) in carbon monoxide (CO) oxidation. Catalysts with small CeO2 nanocrystals (~4 nanometers) exhibit unusually high activity in a CO-rich reaction feed, whereas catalysts with medium-size CeO2 (~8 nanometers) are preferred for lean conditions. Detailed spectroscopic investigations reveal support size-dependent redox properties of the Pd-CeO2 interface.
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Affiliation(s)
- Valery Muravev
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
| | - Alexander Parastaev
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
| | - Yannis van den Bosch
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
| | - Bianca Ligt
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
| | - Nathalie Claes
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, 2020 Antwerp, Belgium
| | - Sara Bals
- Electron Microscopy for Materials Science (EMAT), University of Antwerp, 2020 Antwerp, Belgium
| | - Nikolay Kosinov
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
| | - Emiel J M Hensen
- Laboratory of Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, Netherlands
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13
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Gao J, Yang JW, Ma T, Wang J, Xia D, Du B, Cui Y, Yang C. Mechanism study on direct synthesis of glycerol carbonate from CO2 and glycerol over shaped CeO2 model catalysts. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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14
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Pang D, Li W, Zhang N, He H, Mao S, Chen Y, Cao L, Li C, Li A, Han X. Direct observation of oxygen vacancy formation and migration over ceria surface by in situ environmental transmission electron microscopy. J RARE EARTH 2023. [DOI: 10.1016/j.jre.2023.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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15
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Facet-dependent Pd0-O2−-Ce3+ active site for selective hydrogenation of linoleate ester to cis oleic acid ester. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.112996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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16
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Chen D, Su Z, Si W, Qu Y, Zhao X, Liu H, Yang Y, Wang Y, Peng Y, Chen J, Li J. Boosting CO Catalytic Oxidation Performance via Highly Dispersed Copper Atomic Clusters: Regulated Electron Interaction and Reaction Pathways. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2928-2938. [PMID: 36752384 DOI: 10.1021/acs.est.2c07687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Copper-loaded ceria (Cu/CeO2) catalysts have become promising for the catalytic oxidation of industrial CO emissions. Since their superior redox property mainly arises from the synergistic effect between Cu and the CeO2 support, the dispersion state of Cu species may dominate the catalytic performance of Cu/CeO2 catalysts: the extremely high or low dispersity is disadvantageous for the catalytic performance. The nanoparticle catalysts usually present few contact sites, while the single-atom catalysts tend to be passivated due to their relatively single valence state. To achieve a suitable dispersion state, we synthesized a superior Cu/CeO2 catalyst with Cu atomic clusters, realizing high atomic exposure and unit atomic activity simultaneously via favorable electron interaction and an anchoring effect. The catalyst reaches a 90% CO conversion at 130 °C, comparable to noble-metal catalysts. According to combined in situ spectroscopy and density functional theory calculations, the superior CO oxidation performance of the Cu atomic cluster catalyst results from the joint efforts of effective adsorption of CO at the electrophilic sites, the CO spillover phenomenon, and the efficient bicarbonate pathway triggered by hydroxyl. By providing a superior atomic cluster catalyst and uncovering the catalytic oxidation mechanism of Cu-Ce dual-active sites, our work may enlighten future research on industrial gaseous pollutant removal.
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Affiliation(s)
- Deli Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Ziang Su
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Wenzhe Si
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yakun Qu
- Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
| | - Xiaoguang Zhao
- Sinopec Research Institute of Petroleum Processing, Beijing 100083, China
| | - Hao Liu
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yu Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Yu Wang
- School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
| | - Yue Peng
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Jianjun Chen
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
| | - Junhua Li
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China
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17
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Li S, Mo QL, Xiao Y, Xiao FX. Maneuvering cuprous oxide-based photocathodes for solar-to-fuel conversion. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Zhang L, Chen R, Tu Y, Gong X, Cao X, Xu Q, Li Y, Ye B, Ye Y, Zhu J. Revealing the Crystal Facet Effect of Ceria in Pd/CeO 2 Catalysts toward the Selective Oxidation of Benzyl Alcohol. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Leijie Zhang
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Runhua Chen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui230026, People’s Republic of China
| | - Yi Tu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Xiaoyu Gong
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Xu Cao
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Qian Xu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Yu Li
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Bangjiao Ye
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui230026, People’s Republic of China
| | - Yifan Ye
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics and Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei230029, People’s Republic of China
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19
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The role of lanthanum hydride species in La2O3 supported Ru cluster catalyst for ammonia synthesis. J Catal 2022. [DOI: 10.1016/j.jcat.2022.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Su HS, Chang X, Xu B. Surface-enhanced vibrational spectroscopies in electrocatalysis: Fundamentals, challenges, and perspectives. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64157-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Pu T, Ding J, Tang X, Yang K, Wang K, Huang B, Dai S, He Y, Shi Y, Xie P. Rational Design of Precious-Metal Single-Atom Catalysts for Methane Combustion. ACS APPLIED MATERIALS & INTERFACES 2022; 14:43141-43150. [PMID: 36111426 DOI: 10.1021/acsami.2c09347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Supported precious-metal single-atom catalysts (PM SACs) have emerged as a new frontier of high-performance catalytic material with 100% atom utilization efficiency. However, the rational design of such material with guidance from fundamental understandings of the structure-activity relationship remains challenging. Here, we report the synthesis, characterizations, and mechanistic investigation of various PM SACs supported on nanoceria for CH4 combustion. Using density functional theory, two descriptors as the d-band center of PMs and oxygen vacancy formation energy are established, which jointly govern the reactivity for CH4 combustion. These descriptors are thus applied to predict a dual SAC consisting of proximate Pd and Rh sites, demonstrating a remarkable improvement versus Pd or Rh catalyst, respectively. Our results reveal the general strategy of integrating experimental and computational efforts for investigation of various PM SACs in methane combustion, thus paving the way for the next generation of advanced catalytic materials.
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Affiliation(s)
- Tiancheng Pu
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Jiaqi Ding
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Xuan Tang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Kewu Yang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Ke Wang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Bei Huang
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
| | - Yi He
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
- Department of Chemical Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Yao Shi
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
| | - Pengfei Xie
- College of Chemical and Biological Engineering, Zhejiang University, 148 Tianmushan Road, Hangzhou 310027, People's Republic of China
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22
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Chen J, Wu XP, Hope MA, Lin Z, Zhu L, Wen Y, Zhang Y, Qin T, Wang J, Liu T, Xia X, Wu D, Gong XQ, Tang W, Ding W, Liu X, Chen L, Grey CP, Peng L. Surface differences of oxide nanocrystals determined by geometry and exogenously coordinated water molecules. Chem Sci 2022; 13:11083-11090. [PMID: 36320476 PMCID: PMC9517059 DOI: 10.1039/d2sc03885d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/18/2022] [Indexed: 09/06/2024] Open
Abstract
Determining the different surfaces of oxide nanocrystals is key in developing structure-property relations. In many cases, only surface geometry is considered while ignoring the influence of surroundings, such as ubiquitous water on the surface. Here we apply 17O solid-state NMR spectroscopy to explore the facet differences of morphology-controlled ceria nanocrystals considering both geometry and water adsorption. Tri-coordinated oxygen ions at the 1st layer of ceria (111), (110), and (100) facets exhibit distinct 17O NMR shifts at dry surfaces while these 17O NMR parameters vary in the presence of water, indicating its non-negligible effects on the oxide surface. Thus, the interaction between water and oxide surfaces and its impact on the chemical environment should be considered in future studies, and solid-state NMR spectroscopy is a sensitive approach for obtaining such information. The work provides new insights into elucidating the surface chemistry of oxide nanomaterials.
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Affiliation(s)
- Junchao Chen
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University 163 Xianlin Road Nanjing 210023 China
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Sciences, Shanghai Jiao Tong University Shanghai 200240 China
| | - Xin-Ping Wu
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry, Research Institute of Industrial Catalysis, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Michael A Hope
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Zhiye Lin
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University 163 Xianlin Road Nanjing 210023 China
| | - Lei Zhu
- State Key Laboratory of Space Power Technology, Shanghai Institute of Space Power-Sources (SISP), Shanghai Academy of Spaceflight Technology Shanghai 200245 China
| | - Yujie Wen
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University 163 Xianlin Road Nanjing 210023 China
| | - Yixiao Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Sciences, Shanghai Jiao Tong University Shanghai 200240 China
| | - Tian Qin
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Sciences, Shanghai Jiao Tong University Shanghai 200240 China
| | - Jia Wang
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry, Research Institute of Industrial Catalysis, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Tao Liu
- Shanghai Key Laboratory of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University Shanghai 200092 China
| | - Xifeng Xia
- Analysis and Testing Center, Nanjing University of Science and Technology Nanjing 210094 China
| | - Di Wu
- College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics Nanjing 210023 China
| | - Xue-Qing Gong
- Key Laboratory for Advanced Materials, Centre for Computational Chemistry, Research Institute of Industrial Catalysis, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Weiping Tang
- State Key Laboratory of Space Power Technology, Shanghai Institute of Space Power-Sources (SISP), Shanghai Academy of Spaceflight Technology Shanghai 200245 China
| | - Weiping Ding
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University 163 Xianlin Road Nanjing 210023 China
| | - Xi Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Sciences, Shanghai Jiao Tong University Shanghai 200240 China
| | - Liwei Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, In situ Center for Physical Sciences, Shanghai Jiao Tong University Shanghai 200240 China
- i-Lab, CAS Center for Excellence in Nanoscience, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences Suzhou 215123 China
| | - Clare P Grey
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Luming Peng
- Key Laboratory of Mesoscopic Chemistry of MOE, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University 163 Xianlin Road Nanjing 210023 China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Nanjing University Nanjing 210093 China
- Frontiers Science Center for Critical Earth Material Cycling (FSC-CEMaC), Nanjing University Nanjing Jiangsu 210023 China
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23
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Choi Y, Cho HJ, Kim J, Kang JY, Seo J, Kim JH, Jeong SJ, Lim DK, Kim ID, Jung W. Nanofiber Composites as Highly Active and Robust Anodes for Direct-Hydrocarbon Solid Oxide Fuel Cells. ACS NANO 2022; 16:14517-14526. [PMID: 36006905 DOI: 10.1021/acsnano.2c04927] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Direct utilization of methane fuels in solid oxide fuel cells (SOFCs) is a key technology to realize the immediate inclusion of such high-efficiency fuel cells into the current electricity generation infrastructure. However, the broad commercialization of direct-methane fueled SOFCs is critically hindered by the inadequate electrode activity and their poor longevity, which primarily stems from the carbon build-up issues. To make the technology more competitive, a novel electrode structure that can dramatically improve the tolerance against coking is essential. Herein, we present highly active and robust core-shell nanofiber anodes, La0.75Sr0.25Cr0.5Mn0.5O3@Sm0.2Ce0.8O1.9 (LSCM@SDC), directly obtained with a single-nozzle electrospinning process through the use of two immiscible polymers. The intimate coverage of SDC on LSCM not only increases the active reaction sites but also promotes resistance toward carbon deposition and thermal aggregation. As such, the electrode polarization resistance obtained with LSCM@SDC NFs is among the lowest value ever reported with LSCM derivatives (∼0.11 Ω cm2 in wet H2 at 800 °C). The facile fabrication process of such complex heterostructures developed in this work is attractive for the design of not only SOFC electrodes but also other solid-state devices such as electrolysis cells, membrane reformers, and protonic cells.
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Affiliation(s)
- Yoonseok Choi
- High Temperature Energy Conversion Laboratory, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon 34101, Republic of Korea
| | - Hee-Jin Cho
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jinwook Kim
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Joon-Young Kang
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jongsu Seo
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jun Hyuk Kim
- Department of Chemical Engineering, Hongik University, Wausan-ro 94, Mapo-gu, Seoul 04066, Republic of Korea
| | - Seung Jin Jeong
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dae-Kwang Lim
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - WooChul Jung
- Korea Advanced Institute of Science and Technology (KAIST), Department of Materials Science and Engineering, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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24
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Vecchietti J, Pérez-Bailac P, Lustemberg PG, Fornero EL, Pascual L, Bosco MV, Martínez-Arias A, Ganduglia-Pirovano MV, Bonivardi AL. Shape-Controlled Pathways in the Hydrogen Production from Ethanol Steam Reforming over Ceria Nanoparticles. ACS Catal 2022; 12:10482-10498. [PMID: 36033370 PMCID: PMC9396663 DOI: 10.1021/acscatal.2c02117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/26/2022] [Indexed: 11/29/2022]
Abstract
![]()
The ethanol surface reaction over CeO2 nanooctahedra
(NO) and nanocubes (NC), which mainly expose (111) and (100) surfaces,
respectively, was studied by means of infrared spectroscopy (TPSR-IR),
mass spectrometry (TPSR-MS), and density functional theory (DFT) calculations.
TPSR-MS results show that the production of H2 is 2.4 times
higher on CeO2-NC than on CeO2-NO, which is
rationalized starting from the different types of adsorbed ethoxy
species controlled by the shape of the ceria particles. Over the CeO2(111) surface, monodentate type I and II ethoxy species with
the alkyl chain perpendicular or parallel to the surface, respectively,
were identified. Meanwhile, on the CeO2(100) surface, bidentate
and monodentate type III ethoxy species on the checkerboard O-terminated
surface and on a pyramid of the reconstructed (100) surface, respectively,
are found. The more labile surface ethoxy species on each ceria nanoshape,
which are the monodentate type I or III ethoxy on CeO2-NO
and CeO2-NC, respectively, react on the surface to give
acetate species that decompose to CO2 and CH4, while H2 is formed via the recombination of hydroxyl
species. In addition, the more stable monodentate type II and bidentate
ethoxy species on CeO2-NO and CeO2-NC, respectively,
give an ethylenedioxy intermediate, the binding of which is facet-dependent.
On the (111) facet, the less strongly bound ethylenedioxy desorbs
as ethylene, whereas on the (100) facet, the more strongly bound intermediate
also produces CO2 and H2 via formate species.
Thus, on the (100) facet, an additional pathway toward H2 formation is found. ESR activity measurements show an enhanced H2 production on the nanocubes.
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Affiliation(s)
- Julia Vecchietti
- Instituto de Desarrollo Tecnológico para la Industria Química, UNL-CONICET, Güemes 3450, 3000 Santa Fe, Argentina
| | - Patricia Pérez-Bailac
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid, Spain
- PhD Programme in Applied Chemistry, Doctoral School, Universidad Autónoma de Madrid, C/Francisco Tomas y Valiente 2, 28049 Madrid, Spain
| | - Pablo G. Lustemberg
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid, Spain
- Instituto de Física Rosario (IFIR), CONICET-UNR, Bv. 27 de Febrero 210bis, 2000EZP Rosario, Santa Fe, Argentina
| | - Esteban L. Fornero
- Instituto de Desarrollo Tecnológico para la Industria Química, UNL-CONICET, Güemes 3450, 3000 Santa Fe, Argentina
| | - Laura Pascual
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid, Spain
| | - Marta V. Bosco
- Instituto de Desarrollo Tecnológico para la Industria Química, UNL-CONICET, Güemes 3450, 3000 Santa Fe, Argentina
| | - Arturo Martínez-Arias
- Instituto de Catálisis y Petroleoquímica, CSIC, C/Marie Curie 2, 28049 Madrid, Spain
| | | | - Adrian L. Bonivardi
- Instituto de Desarrollo Tecnológico para la Industria Química, UNL-CONICET, Güemes 3450, 3000 Santa Fe, Argentina
- Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santiago del Estero 2829, 3000 Santa Fe, Argentina
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25
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Dependency of CO2 Methanation on the Strong Metal-Support Interaction for Supported Ni/CeO2 Catalysts. J Catal 2022. [DOI: 10.1016/j.jcat.2022.07.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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26
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Bimetallic Cu-Pt catalysts over nanoshaped ceria for hydrogen production via methanol decomposition. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Van Dao D, Choi H, Nguyen TTD, Ki SW, Kim GC, Son H, Yang JK, Yu YT, Kim HY, Lee IH. Light-to-Hydrogen Improvement Based on Three-Factored Au@CeO 2/Gr Hierarchical Photocatalysts. ACS NANO 2022; 16:7848-7860. [PMID: 35522525 DOI: 10.1021/acsnano.2c00509] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Recently, various attempts have been made for light-to-fuels conversion, often with limited performance. Herein we report active and lasting three-factored hierarchical photocatalysts consisting of plasmon Au, ceria semiconductor, and graphene conductor for hydrogen production. The Au@CeO2/Gr2.0 entity (graphene outer shell thickness of 2.0 nm) under visible-light irradiation exhibits a colossal achievement (8.0 μmol mgcat-1 h-1), which is 2.2- and 14.3-fold higher than those of binary Au@CeO2 and free-standing CeO2 species, outperforming the currently available catalysts. Yet, it delivers a high maximum quantum yield efficiency of 38.4% at an incident wavelength of 560 nm. These improvements are unambiguously attributed to three indispensable effects: (1) the plasmon resonant energy is light-excited and transferred to produce hot electrons localizing near the surface of Au@CeO2, where (2) the high-surface-area Gr conductive shell will capture them to direct hydrogen evolution reactions, and (3) the active graphene hybridized on the defect-rich surface of Au@CeO2 favorably adsorbs hydrogen atoms, which all bring up thorough insight into the working of a ternary Au@CeO2/Gr catalyst system in terms of light-to-hydrogen conversion.
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Affiliation(s)
- Dung Van Dao
- Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hyuk Choi
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Thuy T D Nguyen
- Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Sang-Woo Ki
- Department of Optical Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Gyu-Cheol Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hoki Son
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Jin-Kyu Yang
- Department of Optical Engineering, Kongju National University, Cheonan 31080, Republic of Korea
| | - Yeon-Tae Yu
- Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Hyun You Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - In-Hwan Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
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28
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Weyel J, Ziemba M, Hess C. Elucidating Active CO–Au Species on Au/CeO2(111): A Combined Modulation Excitation DRIFTS and Density Functional Theory Study. Top Catal 2022. [DOI: 10.1007/s11244-022-01599-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
AbstractIn this work we elucidate the main steps of the CO oxidation mechanism over Au/CeO2(111), clarifying the course of CO adsorption at a broad variety of surface sites as well as of transmutations of one CO species into another. By combining transient spectroscopy with DFT calculations we provide new evidence that the active centers for CO conversion are single gold atoms. To gain insight into the reaction mechanism, we employ Modulation Excitation (ME) DRIFT spectroscopy in combination with the mathematical tool of Phase Sensitive Detection to identify the active species and perform DFT calculations to facilitate the assignments of the observed bands. The transient nature of the ME-DRIFTS method allows us to sort the observed species temporally, providing further mechanistic insight. Our study highlights the potential of combined transient spectroscopy and theoretical calculations (DFT) to clarify the role of adsorbates observed and to elucidate the reaction mechanism of CO oxidation over supported gold and other noble-metal catalysts.
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29
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Xu Y, Hao X, Zhang X, Wang T, Hu Z, Chen Y, Feng X, Liu W, Hao F, Kong X, He C, Ma S, Xu B. Increasing Oxygen Vacancy of CeO2 Nanocrystals by Ni Doping and reduced Graphene Oxides Decoration towards the Electrocatalytic Hydrogen Evolution. CrystEngComm 2022. [DOI: 10.1039/d2ce00209d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxygen vacancy (VO) engineering is proved to be an effective approach for improving the hydrogen evolution reaction (HER) performance of low-cost metal oxides electrocatalysts. Cerium dioxide (CeO2), one of...
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30
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Jiang D, Yao Y, Li T, Wan G, Pereira‐Hernández XI, Lu Y, Tian J, Khivantsev K, Engelhard MH, Sun C, García‐Vargas CE, Hoffman AS, Bare SR, Datye AK, Hu L, Wang Y. Tailoring the Local Environment of Platinum in Single‐Atom Pt
1
/CeO
2
Catalysts for Robust Low‐Temperature CO Oxidation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dong Jiang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99164 USA
| | - Yonggang Yao
- Department of Materials Science and Engineering University of Maryland College Park MD 20742 USA
- Current address: State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China
| | - Tangyuan Li
- Department of Materials Science and Engineering University of Maryland College Park MD 20742 USA
| | - Gang Wan
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | - Xavier Isidro Pereira‐Hernández
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99164 USA
| | - Yubing Lu
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Jinshu Tian
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Mark H. Engelhard
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
| | - Chengjun Sun
- X-ray Science Division Advanced Photon Source Argonne National Laboratory Lemont IL 60439 USA
| | - Carlos E. García‐Vargas
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99164 USA
| | - Adam S. Hoffman
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | - Simon R. Bare
- Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory Menlo Park CA 94025 USA
| | - Abhaya K. Datye
- Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials University of New Mexico Albuquerque NM 87131 USA
| | - Liangbing Hu
- Department of Materials Science and Engineering University of Maryland College Park MD 20742 USA
| | - Yong Wang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99164 USA
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99354 USA
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31
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Wang X, Li M, Wu Z. In situ spectroscopic insights into the redox and acid-base properties of ceria catalysts. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(21)63806-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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32
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Li T, Tsyshevsky R, Algrim L, McEntee M, Durke EM, Eichhorn B, Karwacki C, Zachariah MR, Kuklja MM, Rodriguez EE. Understanding Dimethyl Methylphosphonate Adsorption and Decomposition on Mesoporous CeO 2. ACS APPLIED MATERIALS & INTERFACES 2021; 13:54597-54609. [PMID: 34730932 DOI: 10.1021/acsami.1c16668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The increased risk of chemical warfare agent usage around the world has intensified the search for high-surface-area materials that can strongly adsorb and actively decompose chemical warfare agents. Dimethyl methylphosphonate (DMMP) is a widely used simulant molecule in laboratory studies for the investigation of the adsorption and decomposition behavior of sarin (GB) gas. In this paper, we explore how DMMP interacts with the as-synthesized mesoporous CeO2. Our mass spectroscopy and in situ diffuse reflectance infrared Fourier transform spectroscopy measurements indicate that DMMP can dissociate on mesoporous CeO2 at room temperature. Two DMMP dissociation pathways are observed. Based on our characterization of the as-synthesized material, we built the pristine and hydroxylated (110) and (111) CeO2 surfaces and simulated the DMMP interaction on these surfaces with density functional theory modeling. Our calculations reveal an extremely low activation energy barrier for DMMP dissociation on the (111) pristine CeO2 surface, which very likely leads to the high activity of mesoporous CeO2 for DMMP decomposition at room temperature. The two reaction pathways are possibly due to the DMMP dissociation on the pristine and hydroxylated CeO2 surfaces. The significantly higher activation energy barrier for DMMP to decompose on the hydroxylated CeO2 surface implies that such a reaction on the hydroxylated CeO2 surface may occur at higher temperatures or proceed after the pristine CeO2 surfaces are saturated.
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Affiliation(s)
- Tianyu Li
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Roman Tsyshevsky
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Lucas Algrim
- Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, California 92521, United States
| | - Monica McEntee
- US Army Combat Capabilities Development Command Chemical Biological Center, 8198 Blackhawk Road, Aberdeen Proving Ground, Aberdeen, Maryland 21010, United States
| | - Erin M Durke
- US Army Combat Capabilities Development Command Chemical Biological Center, 8198 Blackhawk Road, Aberdeen Proving Ground, Aberdeen, Maryland 21010, United States
| | - Bryan Eichhorn
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Christopher Karwacki
- US Army Combat Capabilities Development Command Chemical Biological Center, 8198 Blackhawk Road, Aberdeen Proving Ground, Aberdeen, Maryland 21010, United States
| | - Michael R Zachariah
- Department of Chemical and Environmental Engineering, University of California Riverside, Riverside, California 92521, United States
| | - Maija M Kuklja
- Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States
| | - Efrain E Rodriguez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
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33
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Jeong HS, Kang CW, Myung Y, Lee SM, Kim HJ, Son SU. Defect-rich CeO 2 in a hollow carbon matrix engineered from a microporous organic platform: a hydroxide-assisted high performance pseudocapacitive material. NANOSCALE 2021; 13:18173-18181. [PMID: 34704579 DOI: 10.1039/d1nr05052d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A microporous organic polymer (MOP) was utilized for the engineering of nanoparticulate CeO2 in a hollow carbon matrix (H-C/CeO2). After CeO2 nanoparticles were incorporated into a hollow MOP platform (H-MOP) through the decomposition of cerium acetate, successive carbonization produced H-C/CeO2. The redox feature of defective CeO2 in a conductive carbon matrix induced promising pseudocapacitive behavior. In particular, the H-C/CeO2 showed excellent electrochemical performance in an alkaline electrolyte (KOH), due to the hydroxide ion-assisted redox behavior of defective CeO2. H-C/CeO2-3 with an optimized amount of CeO2 showed specific capacitances of up to 527 (@0.5 A g-1) and 493 F g-1 (@1 A g-1). Even at high current densities of 10 and 20 A g-1, the H-C/CeO2-3 maintained high capacitances of 458 and 440 F g-1, respectively. After 10 000 cycling tests, the H-C/CeO2-3 retained the 94-95% capacitance of the first cycle.
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Affiliation(s)
- Hyeon Seok Jeong
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea.
| | - Chang Wan Kang
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea.
| | - Yoon Myung
- Dongnam Regional Division, Korea institute of Industrial Technology, Busan 46938, Korea
| | | | - Hae Jin Kim
- Korea Basic Science Institute, Daejeon 34133, Korea
| | - Seung Uk Son
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea.
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34
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Etim UJ, Bai P, Gazit OM, Zhong Z. Low-Temperature Heterogeneous Oxidation Catalysis and Molecular Oxygen Activation. CATALYSIS REVIEWS 2021. [DOI: 10.1080/01614940.2021.1919044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ubong J. Etim
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
| | - Peng Bai
- College of Chemical Engineering, China University of Petroleum, Qingdao, China
| | - Oz M. Gazit
- Wolfson Faculty of Chemical Engineering, Technion – Israel Institute of Technology, Haifa, Israel
| | - Ziyi Zhong
- Department of Chemical Engineering, Guangdong Technion-Israel Institute of Technology (GTIIT), Shantou, Guangdong, China
- Technion Israel Institute of Technology (IIT), Haifa, Israel
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35
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Choi S, Kim J. Facile Room-Temperature Synthesis of Cerium Carbonate and Cerium Oxide Nano- and Microparticles Using 1,1'-Carbonyldiimidazole and Imidazole in a Nonaqueous Solvent. ACS OMEGA 2021; 6:26477-26488. [PMID: 34661003 PMCID: PMC8515608 DOI: 10.1021/acsomega.1c03700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Ceria nanoparticles (CeONPs) are versatile materials due to their unique catalytic properties, and cerium carbonate particles (CeCbPs) have been widely used as precursors for cerium oxide due to their ease of production. Urea is a widely used precipitant and a source of carbonate ions for the synthesis of CeONPs and CeCbPs, and the reaction temperature is important for controlling the rate of urea decomposition. However, the precise control of the temperature is often difficult, especially in large-scale reactions. Herein, we propose a homogeneous precipitation method that uses 1,1'-carbonyldiimidazole (CDI) and imidazole in acetone without heating. The decomposition rate of CDI can be controlled by the amount of water in the reaction mixture. In the synthesis of CeCbPs, unique particle morphologies of plate-, flying-saucer-, and macaron-like shapes and a wide range of sizes from 180 nm to 13 μm can be achieved by adjusting the amount of CDI, imidazole, and water in the reaction. These CeCbPs are transformed into ceria particles by calcination while maintaining their characteristic morphology. Moreover, the direct synthesis of 130 nm spherical CeONPs was possible by decreasing the amount of CDI in the reaction and the mixing time. These nanoparticles exhibited higher production efficiency and superior reactive oxygen species (ROS) scavenging properties compared to the other CeONPs obtained from calcination. These results demonstrate a novel method using CDI and imidazole in the synthesis of CeONPs and CeCbPs without the aid of a heating process, which may be useful in the large-scale synthesis and application of CeO nanomaterials.
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Affiliation(s)
- Seung
Woo Choi
- Department
of Health Sciences and Technology, Samsung Advanced Institute for
Health Sciences & Technology (SAIHST), Sungkyunkwan University (SKKU), Seoul 06355, Republic
of Korea
| | - Jaeyun Kim
- Department
of Health Sciences and Technology, Samsung Advanced Institute for
Health Sciences & Technology (SAIHST), Sungkyunkwan University (SKKU), Seoul 06355, Republic
of Korea
- School
of Chemical Engineering, Sungkyunkwan University
(SKKU), Suwon 16419, Republic of Korea
- Biomedical
Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic
of Korea
- Institute
of Quantum Biophysics (IQB), Sungkyunkwan
University (SKKU), Suwon 16419, Republic of Korea
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36
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Pérez-Bailac P, Lustemberg PG, Ganduglia-Pirovano MV. Facet-dependent stability of near-surface oxygen vacancies and excess charge localization at CeO 2surfaces. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:504003. [PMID: 34479232 DOI: 10.1088/1361-648x/ac238b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/03/2021] [Indexed: 05/25/2023]
Abstract
To study the dependence of the relative stability of surface (VA) and subsurface (VB) oxygen vacancies with the crystal facet of CeO2, the reduced (100), (110) and (111) surfaces, with two different concentrations of vacancies, were investigated by means of density functional theory (DFT + U) calculations. The results show that the trend in the near-surface vacancy formation energies for comparable vacancy spacings, i.e. (110) < (100) < (111), does not follow the one in the surface stability of the facets, i.e. (111) < (110) < (100). The results also reveal that the preference of vacancies for surface or subsurface sites, as well as the preferred location of the associated Ce3+polarons, are facet- and concentration-dependent. At the higher vacancy concentration, theVAis more stable than theVBat the (110) facet whereas at the (111), it is the other way around, and at the (100) facet, both theVAand theVBhave similar stability. The stability of theVAvacancies, compared to that of theVB, is accentuated as the concentration decreases. Nearest neighbor polarons to the vacant sites are only observed for the less densely packed (110) and (100) facets. These findings are rationalized in terms of the packing density of the facets, the lattice relaxation effects induced by vacancy formation and the localization of the excess charge, as well as the repulsive Ce3+-Ce3+interactions.
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Affiliation(s)
- Patricia Pérez-Bailac
- Instituto de Catálisis y Petroleoquímica (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain
- PhD Programme in Applied Chemistry, Doctoral School, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 2, 28049 Ciudad Universitaria de Cantoblanco, Madrid, Spain
| | - Pablo G Lustemberg
- Instituto de Catálisis y Petroleoquímica (ICP-CSIC), C/Marie Curie 2, 28049 Madrid, Spain
- Instituto de Física Rosario (IFIR-CONICET), Ocampo y Esmeralda, S2000EKF Rosario, Santa Fe, Argentina
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37
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Yu WZ, Wu MY, Wang WW, Jia CJ. In Situ Generation of the Surface Oxygen Vacancies in a Copper-Ceria Catalyst for the Water-Gas Shift Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10499-10509. [PMID: 34435787 DOI: 10.1021/acs.langmuir.1c01428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The dissociation of H2O is a crucial aspect for the water-gas shift reaction, which often occurs on the vacancies of a reducible oxide support. However, the vacancies sometimes run off, thus inhibiting H2O dissociation. After high-temperature treatment, the ceria supports were lacking vacancies because of sintering. Unexpectedly, the in situ generation of surface oxygen vacancies was observed, ensuring the efficient dissociation of H2O. Due to the surface reconstruction of ceria nanorods, the copper species sustained were highly dispersed on the sintered support, on which CO was adsorbed efficiently to react with hydroxyls from H2O dissociation. In contrast, no surface reconstruction occurred in ceria nanoparticles, leading to the sintering of copper species. The sintered copper species were averse to adsorb CO, so the copper-ceria nanoparticle catalyst had poor reactivity even when surface oxygen vacancies could be generated in situ.
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Affiliation(s)
- Wen-Zhu Yu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Mei-Yao Wu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Wei-Wei Wang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Chun-Jiang Jia
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
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38
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Jiang D, Yao Y, Li T, Wan G, Pereira-Hernández XI, Lu Y, Tian J, Khivantsev K, Engelhard MH, Sun C, García-Vargas CE, Hoffman AS, Bare SR, Datye AK, Hu L, Wang Y. Tailoring the Local Environment of Platinum in Single-Atom Pt 1 /CeO 2 Catalysts for Robust Low-Temperature CO Oxidation. Angew Chem Int Ed Engl 2021; 60:26054-26062. [PMID: 34346155 DOI: 10.1002/anie.202108585] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 11/09/2022]
Abstract
A single-atom Pt1 /CeO2 catalyst formed by atom trapping (AT, 800 °C in air) shows excellent thermal stability but is inactive for CO oxidation at low temperatures owing to over-stabilization of Pt2+ in a highly symmetric square-planar Pt1 O4 coordination environment. Reductive activation to form Pt nanoparticles (NPs) results in enhanced activity; however, the NPs are easily oxidized, leading to drastic activity loss. Herein we show that tailoring the local environment of isolated Pt2+ by thermal-shock (TS) synthesis leads to a highly active and thermally stable Pt1 /CeO2 catalyst. Ultrafast shockwaves (>1200 °C) in an inert atmosphere induced surface reconstruction of CeO2 to generate Pt single atoms in an asymmetric Pt1 O4 configuration. Owing to this unique coordination, Pt1 δ+ in a partially reduced state dynamically evolves during CO oxidation, resulting in exceptional low-temperature performance. CO oxidation reactivity on the Pt1 /CeO2 _TS catalyst was retained under oxidizing conditions.
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Affiliation(s)
- Dong Jiang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA.,Current address: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Tangyuan Li
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Gang Wan
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Xavier Isidro Pereira-Hernández
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Yubing Lu
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Jinshu Tian
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Mark H Engelhard
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
| | - Chengjun Sun
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, IL, 60439, USA
| | - Carlos E García-Vargas
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA
| | - Adam S Hoffman
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Abhaya K Datye
- Department of Chemical and Biological Engineering and Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Yong Wang
- The Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99164, USA.,Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99354, USA
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39
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Zhang Y, Zhao S, Feng J, Song S, Shi W, Wang D, Zhang H. Unraveling the physical chemistry and materials science of CeO2-based nanostructures. Chem 2021. [DOI: 10.1016/j.chempr.2021.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Zhao Y, Jalal A, Uzun A. Interplay between Copper Nanoparticle Size and Oxygen Vacancy on Mg-Doped Ceria Controls Partial Hydrogenation Performance and Stability. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01471] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuxin Zhao
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri
Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University Surface Science and Technology Center (KUYTAM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Ahsan Jalal
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri
Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University Surface Science and Technology Center (KUYTAM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Alper Uzun
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri
Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University Surface Science and Technology Center (KUYTAM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
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41
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Brambila C, Sayle DC, Molinari M, Nutter J, Flitcroft JM, Sayle TXT, Sakthivel T, Seal S, Möbus G. Tomographic Study of Mesopore Formation in Ceria Nanorods. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:10077-10089. [PMID: 34276857 PMCID: PMC8279707 DOI: 10.1021/acs.jpcc.1c01221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/13/2021] [Indexed: 06/13/2023]
Abstract
Porosity in functional oxide nanorods is a recently discovered new type of microstructure, which is not yet fully understood and still under evaluation for its impact on applications in catalysis and gas/ion storage. Here we explore the shape and distribution of pores in ceria in three dimensions using a modified algorithm of geometric tomography as a reliable tool for reconstructing defective and strained nanoobjects. The pores are confirmed as "negative-particle" or "inverse-particle" cuboctahedral shapes located exclusively beneath the flat surface of the rods separated via a sub-5 nm thin ceria wall from the outside. New findings also comprise elongated "negative-rod" defects, seen as embryonic nanotubes, and pores in cube-shaped ceria. Furthermore, we report near-sintering secondary heat treatment of nanorods and cubes, confirming persistence of pores beyond external surface rounding. We support our experiments with molecular modeling and predict that the growth history of voids is via diffusion and aggregation of atomic point defects. In addition, we use density functional theory to show that the relative stability of pore (shape) increases in the order "cuboidal" < "hexagonal-prismatic" < "octahedral". The results indicate that by engineering voids into nanorods, via a high-temperature postsynthetic heat treatment, a potential future alternative route of tuning catalytic activities might become possible.
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Affiliation(s)
- C. Brambila
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
| | - D. C. Sayle
- School
of Physical Sciences, University of Kent, Canterbury CT2 7NZ, U.K.
| | - M. Molinari
- Department
of Chemistry, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - J. Nutter
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
- The
Henry Royce Institute, Sir Robert Hadfield Building, Sheffield S1 3JD, U.K.
| | - J. M. Flitcroft
- Department
of Chemistry, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - T. X. T. Sayle
- School
of Physical Sciences, University of Kent, Canterbury CT2 7NZ, U.K.
| | - T. Sakthivel
- Advanced
Materials Processing and Analysis Center, Nanoscience and Technology
Center (NSTC), Mechanical, Materials and Aerospace Engineering (MMAE),
College of Medicine, Biionix Cluster, University
of Central Florida, Orlando, Florida 32816, United States
| | - S. Seal
- Advanced
Materials Processing and Analysis Center, Nanoscience and Technology
Center (NSTC), Mechanical, Materials and Aerospace Engineering (MMAE),
College of Medicine, Biionix Cluster, University
of Central Florida, Orlando, Florida 32816, United States
| | - G. Möbus
- Department
of Materials Science and Engineering, University
of Sheffield, Sheffield S1 3JD, U.K.
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42
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Chen S, Li S, You R, Guo Z, Wang F, Li G, Yuan W, Zhu B, Gao Y, Zhang Z, Yang H, Wang Y. Elucidation of Active Sites for CH 4 Catalytic Oxidation over Pd/CeO 2 Via Tailoring Metal–Support Interactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00839] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shiyuan Chen
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Songda Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ruiyang You
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ziyi Guo
- School of Chemical Engineering, University of New South Wales, Sydney 2052, New South Wales, Australia
| | - Fei Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Guanxing Li
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Wentao Yuan
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Beien Zhu
- Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai 201210, China
- Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Yi Gao
- Zhangjiang Laboratory, Chinese Academy of Sciences, Shanghai Advanced Research Institute, Shanghai 201210, China
- Key Laboratory of Interfacial Physics and Technology, Chinese Academy of Sciences, Shanghai Institute of Applied Physics, Shanghai 201800, China
| | - Ze Zhang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Hangsheng Yang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong Wang
- Center of Electron Microscopy and State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
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43
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Lustemberg PG, Plessow PN, Wang Y, Yang C, Nefedov A, Studt F, Wöll C, Ganduglia-Pirovano MV. Vibrational Frequencies of Cerium-Oxide-Bound CO: A Challenge for Conventional DFT Methods. PHYSICAL REVIEW LETTERS 2020; 125:256101. [PMID: 33416353 DOI: 10.1103/physrevlett.125.256101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/04/2020] [Accepted: 11/09/2020] [Indexed: 06/12/2023]
Abstract
In ceria-based catalysis, the shape of the catalyst particle, which determines the exposed crystal facets, profoundly affects its reactivity. The vibrational frequency of adsorbed carbon monoxide (CO) can be used as a sensitive probe to identify the exposed surface facets, provided reference data on well-defined single crystal surfaces together with a definitive theoretical assignment exist. We investigate the adsorption of CO on the CeO_{2}(110) and (111) surfaces and show that the commonly applied DFT(PBE)+U method does not provide reliable CO vibrational frequencies by comparing with state-of-the-art infrared spectroscopy experiments for monocrystalline CeO_{2} surfaces. Good agreement requires the hybrid DFT approach with the HSE06 functional. The failure of conventional density-functional theory (DFT) is explained in terms of its inability to accurately describe the facet- and configuration-specific donation and backdonation effects that control the changes in the C─O bond length upon CO adsorption and the CO force constant. Our findings thus provide a theoretical basis for the detailed interpretation of experiments and open up the path to characterize more complex scenarios, including oxygen vacancies and metal adatoms.
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Affiliation(s)
- Pablo G Lustemberg
- Institute of Physics Rosario, IFIR, National Scientific and Technical Research Council, CONICET, and National University of Rosario, UNR, S2000EKF Rosario, Santa Fe, Argentina
- Institute of Catalysis and Petrochemistry, ICP, Spanish National Research Council, CSIC, 28049 Madrid, Spain
| | - Philipp N Plessow
- Institute of Catalysis Research and Technology, IKFT, Karlsruhe Institute of Technology, KIT, 76344 Eggenstein-Leopoldshafen, Germany
| | - Yuemin Wang
- Institute for Chemical Technology and Polymer Chemistry, ITCP, Karlsruhe Institute of Technology, KIT, Karlsruhe 76131, Germany
| | - Chengwu Yang
- Institute for Chemical Technology and Polymer Chemistry, ITCP, Karlsruhe Institute of Technology, KIT, Karlsruhe 76131, Germany
| | - Alexei Nefedov
- Institute for Chemical Technology and Polymer Chemistry, ITCP, Karlsruhe Institute of Technology, KIT, Karlsruhe 76131, Germany
| | - Felix Studt
- Institute of Catalysis Research and Technology, IKFT, Karlsruhe Institute of Technology, KIT, 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, ITCP, Karlsruhe Institute of Technology, KIT, Karlsruhe 76131, Germany
| | - Christof Wöll
- Institute of Functional Interfaces, IFG, Karlsruhe Institute of Technology, KIT, 76344 Eggenstein-Leopoldshafen, Germany
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44
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Recent Advances in the Design and Photocatalytic Enhanced Performance of Gold Plasmonic Nanostructures Decorated with Non-Titania Based Semiconductor Hetero-Nanoarchitectures. Catalysts 2020. [DOI: 10.3390/catal10121459] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Plasmonic photocatalysts combining metallic nanoparticles and semiconductors have been aimed as versatile alternatives to drive light-assisted catalytic chemical reactions beyond the ultraviolet (UV) regions, and overcome one of the major drawbacks of the most exploited photocatalysts (TiO2 or ZnO). The strong size and morphology dependence of metallic nanostructures to tune their visible to near-infrared (vis-NIR) light harvesting capabilities has been combined with the design of a wide variety of architectures for the semiconductor supports to promote the selective activity of specific crystallographic facets. The search for efficient heterojunctions has been subjected to numerous studies, especially those involving gold nanostructures and titania semiconductors. In the present review, we paid special attention to the most recent advances in the design of gold-semiconductor hetero-nanostructures including emerging metal oxides such as cerium oxide or copper oxide (CeO2 or Cu2O) or metal chalcogenides such as copper sulfide or cadmium sulfides (CuS or CdS). These alternative hybrid materials were thoroughly built in past years to target research fields of strong impact, such as solar energy conversion, water splitting, environmental chemistry, or nanomedicine. Herein, we evaluate the influence of tuning the morphologies of the plasmonic gold nanostructures or the semiconductor interacting structures, and how these variations in geometry, either individual or combined, have a significant influence on the final photocatalytic performance.
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45
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Kinetic analysis of morphologies and crystal planes of nanostructured CeO2 catalysts on soot oxidation. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115891] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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46
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Ziemba M, Ganduglia-Pirovano MV, Hess C. Elucidating the Oxygen Storage-Release Dynamics in Ceria Nanorods by Combined Multi-Wavelength Raman Spectroscopy and DFT. J Phys Chem Lett 2020; 11:8554-8559. [PMID: 32970436 DOI: 10.1021/acs.jpclett.0c02607] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The oxygen storage-release dynamics in ceria nanorods is elucidated by using a combination of in situ multi-wavelength Raman spectroscopy and density functional theory calculations. Ceria nanorods exposing CeO2(100) and CeO2(110) facets are shown to be characterized by highly facet-dependent properties regarding molecular oxygen activation and decomposition as well as lattice oxygen dynamics. Temperature-dependent Raman results show that oxygen is stored in the form of peroxide species on the (100) facets, which are then released as gaseous oxygen, whereas lattice oxygen is involved with the (110) facets. On the latter, peroxide species first decompose into oxygen atoms that heal vacant lattice oxygen sites before being released as gaseous oxygen. The exposure of different facets makes ceria nanorods an interesting material for catalytic applications, because they allow the use of a mixture of oxygen storage-release functions, as well as their synergistic interactions, in a single system.
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Affiliation(s)
- Marc Ziemba
- Eduard Zintl Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 8, 64287 Darmstadt, Germany
| | - M Verónica Ganduglia-Pirovano
- Instituto de Catálisis y Petroleoquímica, Consejo Superior de Investigaciones Científicas, Marie Curie 2, 28049 Madrid, Spain
| | - Christian Hess
- Eduard Zintl Institute of Inorganic and Physical Chemistry, Technical University of Darmstadt, Alarich-Weiss-Str. 8, 64287 Darmstadt, Germany
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47
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Yang C, Capdevila-Cortada M, Dong C, Zhou Y, Wang J, Yu X, Nefedov A, Heißler S, López N, Shen W, Wöll C, Wang Y. Surface Refaceting Mechanism on Cubic Ceria. J Phys Chem Lett 2020; 11:7925-7931. [PMID: 32870002 DOI: 10.1021/acs.jpclett.0c02409] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Polar surfaces of solid oxides are intrinsically unstable and tend to reconstruct due to the diverging electrostatic energy and thus often exhibit unique physical and chemical properties. However, a quantitative description of the restructuring mechanism of these polar surfaces remains challenging. Here we provide an atomic-level picture of the refaceting process that governs the surface polarity compensation of cubic ceria nanoparticles based on the accurate reference data acquired from the well-defined model systems. The combined results from advanced infrared spectroscopy, atomic-resolved transmission electron microscopy, and density functional theory calculations identify a two-step scenario where an initial O-terminated (2 × 2) reconstruction is followed by a severe refaceting via massive mass transport at elevated temperatures to yield {111}-dominated nanopyramids. This significant surface restructuring promotes the redox properties of ceria nanocubes, which account for the enhanced catalytic activity for CO oxidation.
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Affiliation(s)
- Chengwu Yang
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing 102206, China
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Marçal Capdevila-Cortada
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Chunyan Dong
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Junjun Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Xiaojuan Yu
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Alexei Nefedov
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Heißler
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 43007 Tarragona, Spain
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Christof Wöll
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
| | - Yuemin Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
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48
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Yang C, Wang W, Nefedov A, Wang Y, Mayerhöfer TG, Wöll C. Polarization-dependent vibrational shifts on dielectric substrates. Phys Chem Chem Phys 2020; 22:17129-17133. [PMID: 32756634 DOI: 10.1039/d0cp02399j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of light with matter at surfaces of dielectrics strongly depends on polarization. Here, we present the first infrared spectroscopic evidence for significant polarization effects in the spectroscopic detection of adsorbate vibrational frequencies. In addition to much larger peak intensities for p-polarized light relative to s-polarization, a small but distinct blue shift was identified for CO adsorbed at the surfaces of two prototype dielectric substrates, CeO2(111) and CaCO3(10.4). A simulation using a layer model yields very good agreement with experiment.
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Affiliation(s)
- C Yang
- Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Space and Environment, Beihang University, Beijing, 100191, China and Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
| | - W Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
| | - A Nefedov
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
| | - Y Wang
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
| | - T G Mayerhöfer
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Str. 9, D-07745 Jena, Germany. and Institute of Physical Chemistry, and Abbe Center of Photonics, Friedrich Schiller University, Helmholtzweg 4, Jena D-07743, Germany
| | - C Wöll
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany.
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49
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Wu T, López N, Vegge T, Hansen HA. Facet-dependent electrocatalytic water splitting reaction on CeO2: A DFT + U study. J Catal 2020. [DOI: 10.1016/j.jcat.2020.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Araiza DG, Gómez-Cortés A, Díaz G. Effect of ceria morphology on the carbon deposition during steam reforming of ethanol over Ni/CeO2 catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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