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Xu H, Wang QY, Jiang M, Li SS. Application of valence-variable transition-metal-oxide-based nanomaterials in electrochemical analysis: A review. Anal Chim Acta 2024; 1295:342270. [PMID: 38355227 DOI: 10.1016/j.aca.2024.342270] [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: 12/03/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/16/2024]
Abstract
The construction of materials with rapid electron transfer is considered an effective method for enhancing electrochemical activity in electroanalysis. It has been widely demonstrated that valence changes in transition metal ions can promote electron transfer and thus increase electrochemical activity. Recently, valence-variable transition metal oxides (TMOs) have shown popular application in electrochemical analysis by using their abundant valence state changes to accelerate electron transfer during electrochemical detection. In this review, we summarize recent research advances in valence changes of TMOs and their application in electrochemical analysis. This includes the definition and mechanism of valence change, the association of valence changes with electronic structure, and their applications in electrochemical detection, along with the use of density functional theory (DFT) to simulate the process of electron transfer during valence changes. Finally, the challenges and opportunities for developing and applying valence changes in electrochemical analysis are also identified.
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Affiliation(s)
- Huan Xu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
| | - Qiu-Yu Wang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
| | - Min Jiang
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang, 330045, China.
| | - Shan-Shan Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Anhui Province Industrial Generic Technology Research Center for Alumics Materials, School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China.
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2
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Catalytic Etching and Oxidation of Platinum Group Metals: Morphology, Chemical Composition and Structure of Pt, Pd and Rh Foils in the O2 Atmosphere and during NH3 Oxidation with Air at 1133 K. Catalysts 2023. [DOI: 10.3390/catal13020249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Platinum alloy gauzes are employed for the high-temperature oxidation of NH3 to NO used in the industrial production of HNO3 for application in agricultural fertilizers. To enhance the efficiency of NH3 oxidation, various Pt–Pd–Rh alloys are employed for the production of such catalytic gauzes. To understand the role of these metals in NH3 oxidation, scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction were applied to investigate the morphology, composition and structure of Pt, Pd and Rh foils after annealing in O2 and oxidation of NH3 with air at 1133 K. After annealing in O2 and NH3 oxidation, the metallic microgranular structure was detected on Pt(poly), whereas oxide layers of Rh2O3 and PdO were observed on Rh(poly) and Pd(poly). At the onset of NH3 oxidation (t = 1 h), fibrous metal-oxide agglomerates of nanofibers formed on these oxide layers. The long-term (5–10 h) oxidation of NH3 led to the formation of a continuous layer of pyramidal crystals on Rh(poly) and palladium “cauliflowers” on Pd(poly). The highly exothermic reaction of NH3 with oxygen on metals and PdO or Rh2O3 initiates strong catalytic etching forming grains and facets on Pt, fibrous metal-oxide agglomerates, pyramidal crystals and metallic “cauliflowers” on Rh and Pd.
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3
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Potapenko KO, Gerasimov EY, Cherepanova SV, Saraev AA, Kozlova EA. Efficient Photocatalytic Hydrogen Production over NiS-Modified Cadmium and Manganese Sulfide Solid Solutions. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15228026. [PMID: 36431512 PMCID: PMC9696279 DOI: 10.3390/ma15228026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 06/12/2023]
Abstract
In this work, new photocatalysts based on Cd1-xMnxS sulfide solid solutions were synthesized by varying the fraction of MnS (x = 0.4, 0.6, and 0.8) and the hydrothermal treatment temperature (T = 100, 120, 140, and 160 °C). The active samples were modified with Pt and NiS co-catalysts. Characterization was performed using various methods, including XRD, XPS, HR TEM, and UV-vis spectroscopy. The photocatalytic activity was tested in hydrogen evolution from aqueous solutions of Na2S/Na2SO3 and glucose under visible light (425 nm). When studying the process of hydrogen evolution using an equimolar mixture of Na2S/Na2SO3 as a sacrificial agent, the photocatalysts Cd0.5Mn0.5S/Mn(OH)2 (T = 120 °C) and Cd0.4Mn0.6S (T = 160 °C) demonstrated the highest activity among the non-modified solid solutions. The deposition of NiS co-catalyst led to a significant increase in activity. The best activity in the case of the modified samples was shown by 0.5 wt.% NiS/Cd0.5Mn0.5S (T = 120 °C) at the extraordinary level of 34.2 mmol g-1 h-1 (AQE 14.4%) for the Na2S/Na2SO3 solution and 4.6 mmol g-1 h-1 (AQE 2.9%) for the glucose solution. The nickel-containing samples possessed a high stability in solutions of both sodium sulfide/sulfite and glucose. Thus, nickel sulfide is considered an alternative to depositing precious metals, which is attractive from an economic point of view. It worth noting that the process of photocatalytic hydrogen evolution from sugar solutions by adding samples based on Cd1-xMnxS has not been studied before.
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Smal E, Bespalko Y, Arapova M, Fedorova V, Valeev K, Eremeev N, Sadovskaya E, Krieger T, Glazneva T, Sadykov V, Simonov M. Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203676. [PMID: 36296866 PMCID: PMC9607641 DOI: 10.3390/nano12203676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 06/12/2023]
Abstract
Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence of support composition and preparation method on the catalysts' morphology and surface features. The oxygen mobility was studied by isotope heteroexchange with C18O2. After testing in DRM, carbon deposits after catalysts' testing in DRM were investigated by temperature-programmed oxidation with thermo-gravimetric analysis. The lowest amounts of carbon deposits were obtained for unmodified Ni-CeZr and Ni-CeNbZr compositions. Ti addition lead to an increased amount of carbon, which was removed at higher temperatures. The use of supercritical supports also resulted in the formation of a higher amount of coke. Catalysts prepared by the supercritical synthesis were tested in DRM for 25 h. The highest activity drop was observed in the first three hours. For all compositions, close values of carbon deposits were revealed.
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Lashina EA, Vinokurov ZS, Saraev AA, Kaichev VV. Self-sustained oscillations in oxidation of methane over palladium: Experimental study and mathematical modeling. J Chem Phys 2022; 157:044703. [DOI: 10.1063/5.0097251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Experimental study of the catalytic oxidation of methane over Pd foil in a flow reactor revealed that regular temporal oscillations in the reaction rate can arise at atmospheric pressure under methane-rich conditions. CO, CO2, H2, and H2O were detected as products. The oscillations of partial pressures of products and reactants in the gas phase were accompanied by oscillations of the catalyst temperature. According to an operando X-ray diffraction and mass-spectrometry study, the oscillations originate due to spontaneous oxidation and reduction of palladium; the high active catalyst surface is represented by metallic palladium, the transition to the low active state is accompanied by the formation of the PdO phase. In addition, it was detected that carbon dissolve in near-surface layers of palladium to form the PdCx phase. To describe the oscillations in the oxidation of methane, a 17-step reaction mechanism and a corresponding kinetic model were developed. The mechanism considers direct dissociative adsorption of methane and oxygen, pyrolytic activation of methane, oxidation and reduction of palladium, and direct formation and desorption of CO, CO2, H2, and H2O. Numerical solutions from the mathematical model of the continuously stirred tank reactor qualitatively reproduce experimentally observed oscillatory dynamics. We have also developed a model, which considers the reversible diffusion of adsorbed oxygen and carbon atoms into the Pd bulk that allows us to explain the long induction period preceding the appearance of the oscillations. Mathematical modeling shows that the concentrations of dissolved oxygen and carbon atoms also oscillate under reaction conditions.
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Affiliation(s)
| | | | - Andrey A. Saraev
- Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia, Russia
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Bychkov VY, Tulenin YP, Gorenberg AY, Gulin AA, Korchak VN. Catalytic and Structural Properties of Cobalt Surface Layers Formed in the Course of Self-Oscillatory Reactions. KINETICS AND CATALYSIS 2022. [DOI: 10.1134/s0023158421060045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Filatov EY, Borodin AO, Kuratieva NV, Plusnin PE, Urlukov AS, Potemkin DI, Korenev SV, Kostin GA. Synthesis and thermal properties of the heterometallic nickel–ruthenium complex: a potential precursor for catalytically active nanosized Ni–Ru alloy. NEW J CHEM 2022. [DOI: 10.1039/d2nj03402f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thermal decomposition of the novel heterometallic complex [RuNO(NO2)4OHNi(En)2] results in a single-phase metastable solid solution Ni0.5Ru0.5. The catalytic activity of the prepared nanoalloy in the CO methanation reaction was demonstrated.
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Affiliation(s)
- E. Yu Filatov
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
| | - A. O. Borodin
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
| | - N. V. Kuratieva
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
| | - P. E. Plusnin
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
| | - A. S. Urlukov
- Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russia
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - D. I. Potemkin
- Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russia
| | - S. V. Korenev
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
| | - G. A. Kostin
- Nicolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk, 630090, Russia
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8
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Structured catalysts with mesoporous nanocomposite active components for transformation of biogas/biofuels into syngas. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Salanov AN, Chesnokova NM, Serkova AN, Isupova LA. Local Chemical Analysis of the Grain Surface, Cauliflowers, and Pores on Pt–Pd–Rh–Ru Gauzes after the Oxidation of NH3 at 1133 K. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421050086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Ni-Cu High-Loaded Sol-Gel Catalysts for Dehydrogenation of Liquid Organic Hydrides: Insights into Structural Features and Relationship with Catalytic Activity. NANOMATERIALS 2021; 11:nano11082017. [PMID: 34443848 PMCID: PMC8398823 DOI: 10.3390/nano11082017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 01/24/2023]
Abstract
The heightened interest in liquid organic hydrogen carriers encourages the development of catalysts suitable for multicycle use. To ensure high catalytic activity and selectivity, the structure-reactivity relationship must be extensively investigated. In this study, high-loaded Ni-Cu catalysts were considered for the dehydrogenation of methylcyclohexane. The highest conversion of 85% and toluene selectivity of 70% were achieved at 325 °C in a fixed-bed reactor using a catalyst with a Cu/Ni atomic ratio of 0.23. To shed light on the relationship between the structural features and catalytic performance, the catalysts were thoroughly studied using a wide range of advanced physicochemical tools. The activity and selectivity of the proposed catalysts are related to the uniformity of Cu distribution and its interaction with Ni via the formation of metallic solid solutions. The method of introduction of copper in the catalyst plays a crucial role in the effectiveness of the interaction between the two metals.
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11
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Huang X, Jones T, Fedorov A, Farra R, Copéret C, Schlögl R, Willinger MG. Phase Coexistence and Structural Dynamics of Redox Metal Catalysts Revealed by Operando TEM. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2101772. [PMID: 34117665 DOI: 10.1002/adma.202101772] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/10/2021] [Indexed: 05/12/2023]
Abstract
Metal catalysts play an important role in industrial redox reactions. Although extensively studied, the state of these catalysts under operating conditions is largely unknown, and assignments of active sites remain speculative. Herein, an operando transmission electron microscopy study is presented, which interrelates the structural dynamics of redox metal catalysts to their activity. Using hydrogen oxidation on copper as an elementary redox reaction, it is revealed how the interaction between metal and the surrounding gas phase induces complex structural transformations and drives the system from a thermodynamic equilibrium toward a state controlled by the chemical dynamics. Direct imaging combined with the simultaneous detection of catalytic activity provides unparalleled structure-activity insights that identify distinct mechanisms for water formation and reveal the means by which the system self-adjusts to changes of the gas-phase chemical potential. Density functional theory calculations show that surface phase transitions are driven by chemical dynamics even when the system is far from a thermodynamic phase boundary. In a bottom-up approach, the dynamic behavior observed here for an elementary reaction is finally extended to more relevant redox reactions and other metal catalysts, which underlines the importance of chemical dynamics for the formation and constant re-generation of transient active sites during catalysis.
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Affiliation(s)
- Xing Huang
- Scientific Center for Optical and Electron Microscopy, ETH Zurich, Otto-Stern-Weg 3, Zurich, 8093, Switzerland
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Travis Jones
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Alexey Fedorov
- Department of Mechanical and Process Engineering, ETH Zurich, Leonhardstrasse 21, 8092, Zurich, Switzerland
| | - Ramzi Farra
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5, Zurich, 8093, Switzerland
| | - Robert Schlögl
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
- Department Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, 45470, Mülheim an der Ruhr, Germany
| | - Marc-Georg Willinger
- Scientific Center for Optical and Electron Microscopy, ETH Zurich, Otto-Stern-Weg 3, Zurich, 8093, Switzerland
- Fritz-Haber Institute of Max-Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
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12
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Bychkov VY, Tulenin YP, Gorenberg AY, Korchak VN. Investigation of Nickel Surface Layers Formed in the Course of Self-Oscillatory Methane Oxidation. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421010018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Hierarchically devising NiFeO H catalyst with surface Fe active sites for efficient oxygen evolution reaction. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.04.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Kaichev VV, Vinokurov ZS, Saraev AA. Self-sustained oscillations in oxidation of methane over palladium: the nature of “low-active” and “highly active” states. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00132a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidation of methane was studied in a flow reactor at atmospheric pressure using palladium foil as a catalyst.
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15
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Slinko MM, Makeev AG. Heterogeneous Catalysis and Nonlinear Dynamics. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420040114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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The role of surface sulfation in mediating the acidity and oxidation ability of nickel modified ceria catalyst for the catalytic elimination of chlorinated organics. J Colloid Interface Sci 2020; 574:251-259. [DOI: 10.1016/j.jcis.2020.04.047] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 01/19/2023]
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17
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Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol. ENERGIES 2020. [DOI: 10.3390/en13143728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A series of 5%Ni-CexZr1−xO2 (x = 0.3, 0.5, 0.7) catalysts has been prepared via one-pot solvothermal continuous synthesis in supercritical isopropanol and incipient wetness impregnation of CexZr1−xO2 obtained by the same route. The textural, structural, red-ox, and catalytic properties in methane dry reforming (MDR) of Ni-modified Ce-Zr oxides synthesized by two routes have been compared. It was shown by XRD, TEM, and Raman spectroscopy that the method of Ni introduction does not affect the phase composition of the catalysts, but determines the dispersion of NiO. Despite a high dispersion of NiO and near-uniform distribution of Ni within Ce-Zr particles observed for the one-pot catalysts, they have shown a lower activity and stability in MDR as compared with impregnated ones. This is a result of a low Ni concentration in the surface layer due to segregation of Ce and decoration of nickel nanoparticles with support species.
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18
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Self-sustained Oscillations in Oxidation of Propane Over Nickel: Experimental Study and Mathematical Modelling. Top Catal 2020. [DOI: 10.1007/s11244-019-01219-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Kaichev VV, Gladky AY, Saraev AA, Kosolobov SS, Sherstyuk OV, Bukhtiyarov VI. Oscillatory Behavior in Oxidation of Propane Over Nickel Foil and Films. Top Catal 2020. [DOI: 10.1007/s11244-020-01225-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Inverse temperature hysteresis and self-sustained oscillations in CO oxidation over Pd at elevated pressures of reaction mixture: Experiment and mathematical modeling. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115312] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Konishcheva MV, Svintsitskiy DA, Potemkin DI, Rogozhnikov VN, Sobyanin VA, Snytnikov PV. Catalytic Performance and Characterization of Highly Efficient Composite Ni(Cl
x
)/CeO
2
/η‐Al
2
O
3
/FeCrAl Wire Mesh Catalysts for Preferential CO Methanation. ChemistrySelect 2020. [DOI: 10.1002/slct.201904630] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Margarita V. Konishcheva
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
| | - Dmitry A. Svintsitskiy
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
| | - Dmitry I. Potemkin
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
| | - Vladimir N. Rogozhnikov
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
| | - Vladimir A. Sobyanin
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
| | - Pavel V. Snytnikov
- Boreskov Institute of Catalysis Pr. Lavrentieva, 5 Novosibirsk 630090 Russia
- Novosibirsk State University Pirogova St., 2 Novosibirsk 630090 Russia
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22
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Smirnov AA, Shilov IN, Bulavchenko OA, Saraev AA, Yakovlev VA. Hydrotreatment of Anisole and Furfural as Model Compounds of Bio‐oil over Chromium Modified Nickel‐Based Catalysts. ChemistrySelect 2019. [DOI: 10.1002/slct.201901087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrey A. Smirnov
- Novosibirsk State University 2 Pirogov St. Novosibirsk 630090 Russia
- Federal Research Center Boreskov lnstitute of Catalysis 5 Acad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Ivan N. Shilov
- Novosibirsk State University 2 Pirogov St. Novosibirsk 630090 Russia
- Federal Research Center Boreskov lnstitute of Catalysis 5 Acad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Olga A. Bulavchenko
- Novosibirsk State University 2 Pirogov St. Novosibirsk 630090 Russia
- Federal Research Center Boreskov lnstitute of Catalysis 5 Acad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Andrey A. Saraev
- Novosibirsk State University 2 Pirogov St. Novosibirsk 630090 Russia
- Federal Research Center Boreskov lnstitute of Catalysis 5 Acad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Vadim A. Yakovlev
- Novosibirsk State University 2 Pirogov St. Novosibirsk 630090 Russia
- Federal Research Center Boreskov lnstitute of Catalysis 5 Acad. Lavrentiev Ave. Novosibirsk 630090 Russia
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23
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Yeletsky P, Reina T, Bulavchenko O, Saraev A, Gerasimov EY, Zaikina O, Bermúdez J, Arcelus-Arrillaga P, Yakovlev V, Millan M. Phenanthrene catalytic cracking in supercritical water: effect of the reaction medium on NiMo/SiO2 catalysts. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.10.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Saraev AA, Vinokurov ZS, Shmakov AN, Kaichev VV, Bukhtiyarov VI. The Reasons for Nonlinear Phenomena in Oxidation of Methane over Nickel. KINETICS AND CATALYSIS 2019. [DOI: 10.1134/s0023158418060149] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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He C, Cheng J, Zhang X, Douthwaite M, Pattisson S, Hao Z. Recent Advances in the Catalytic Oxidation of Volatile Organic Compounds: A Review Based on Pollutant Sorts and Sources. Chem Rev 2019; 119:4471-4568. [DOI: 10.1021/acs.chemrev.8b00408] [Citation(s) in RCA: 769] [Impact Index Per Article: 153.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chi He
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, P.R. China
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Jie Cheng
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
| | - Xin Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
| | - Mark Douthwaite
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Samuel Pattisson
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, U.K
| | - Zhengping Hao
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
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In Situ Study of Self-sustained Oscillations in Propane Oxidation and Propane Steam Reforming with Oxygen Over Nickel. Catal Letters 2018. [DOI: 10.1007/s10562-018-2604-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Derafa W, Paloukis F, Mewafy B, Baaziz W, Ersen O, Petit C, Corbel G, Zafeiratos S. Synthesis and characterization of nickel-doped ceria nanoparticles with improved surface reducibility. RSC Adv 2018; 8:40712-40719. [PMID: 35557907 PMCID: PMC9091644 DOI: 10.1039/c8ra07995a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 11/26/2018] [Indexed: 12/14/2022] Open
Abstract
Nickel-doped ceria nanoparticles (Ni0.1Ce0.9O2−x NPs) were fabricated from Schiff-base complexes and characterized by various microscopic and spectroscopic methods. Clear evidence is provided for incorporation of nickel ions in the ceria lattice in the form of Ni3+ species which is considered as the hole trapped state of Ni2+. The Ni0.1Ce0.9O2−x NPs exhibit enhanced reducibility in H2 as compared to conventional ceria-supported Ni particles, while in O2 the dopant nickel cations are oxidized at higher valence than the supported ones. Nickel-doped ceria nanoparticles (Ni0.1Ce0.9O2−x NPs) were fabricated from Schiff-base complexes and characterized by various microscopic and spectroscopic methods.![]()
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Affiliation(s)
- Wassila Derafa
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- ECPM
- UMR 7515 CNRS
- Université de Strasbourg
- 67087 Strasbourg Cedex 02
| | - Fotios Paloukis
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- ECPM
- UMR 7515 CNRS
- Université de Strasbourg
- 67087 Strasbourg Cedex 02
| | - Basma Mewafy
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- ECPM
- UMR 7515 CNRS
- Université de Strasbourg
- 67087 Strasbourg Cedex 02
| | - Walid Baaziz
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504 du CNRS
- Université de Strasbourg
- 67037 Strasbourg Cedex 08
- France
| | - Ovidiu Ersen
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS)
- UMR 7504 du CNRS
- Université de Strasbourg
- 67037 Strasbourg Cedex 08
- France
| | - Corinne Petit
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- ECPM
- UMR 7515 CNRS
- Université de Strasbourg
- 67087 Strasbourg Cedex 02
| | - Gwenaël Corbel
- Institut des Molécules et Matériaux du Mans
- IMMM-UMR 6283 CNRS
- Le Mans Université
- 72085 Le Mans Cedex 9
- France
| | - Spyridon Zafeiratos
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES)
- ECPM
- UMR 7515 CNRS
- Université de Strasbourg
- 67087 Strasbourg Cedex 02
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29
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Bychkov VY, Tulenin YP, Slinko MM, Gordienko YA, Korchak VN. New Oscillating System: Co Oxidation over Ni. Catal Letters 2017. [DOI: 10.1007/s10562-017-2283-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Lashina EA, Kaichev VV, Saraev AA, Vinokurov ZS, Chumakova NA, Chumakov GA, Bukhtiyarov VI. Experimental Study and Mathematical Modeling of Self-Sustained Kinetic Oscillations in Catalytic Oxidation of Methane over Nickel. J Phys Chem A 2017; 121:6874-6886. [PMID: 28813604 DOI: 10.1021/acs.jpca.7b04525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elena A. Lashina
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Vasily V. Kaichev
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Andrey A. Saraev
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Zakhar S. Vinokurov
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Nataliya A. Chumakova
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
| | - Gennadii A. Chumakov
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
- Sobolev Institute of Mathematics, Akademika Koptyuga Ave. 4, 630090 Novosibirsk, Russia
| | - Valerii I. Bukhtiyarov
- Boreskov Institute of Catalysis, Akademika Lavrentieva Ave. 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova
Str. 2, 630090 Novosibirsk, Russia
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31
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Greiner MT, Jones TE, Klyushin A, Knop-Gericke A, Schlögl R. Ethylene Epoxidation at the Phase Transition of Copper Oxides. J Am Chem Soc 2017; 139:11825-11832. [DOI: 10.1021/jacs.7b05004] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mark T. Greiner
- Fritz-Haber-Institut, Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Travis E. Jones
- Fritz-Haber-Institut, Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Alexander Klyushin
- Fritz-Haber-Institut, Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Axel Knop-Gericke
- Fritz-Haber-Institut, Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Robert Schlögl
- Fritz-Haber-Institut, Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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32
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Paloukis F, Papazisi KM, Dintzer T, Papaefthimiou V, Saveleva VA, Balomenou SP, Tsiplakides D, Bournel F, Gallet JJ, Zafeiratos S. Insights into the Surface Reactivity of Cermet and Perovskite Electrodes in Oxidizing, Reducing, and Humid Environments. ACS APPLIED MATERIALS & INTERFACES 2017; 9:25265-25277. [PMID: 28683200 DOI: 10.1021/acsami.7b05721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Understanding the surface chemistry of electrode materials under gas environments is important in order to control their performance during electrochemical and catalytic applications. This work compares the surface reactivity of Ni/YSZ and La0.75Sr0.25Cr0.9Fe0.1O3, which are commonly used types of electrodes in solid oxide electrochemical devices. In situ synchrotron-based near-ambient pressure photoemission and absorption spectroscopy experiments, assisted by theoretical spectral simulations and combined with microscopy and electrochemical measurements, are used to monitor the effect of the gas atmosphere on the chemical state, the morphology, and the electrical conductivity of the electrodes. It is shown that the surface of both electrode types readjusts fast to the reactive gas atmosphere and their surface composition is notably modified. In the case of Ni/YSZ, this is followed by evident changes in the oxidation state of nickel, while for La0.75Sr0.25Cr0.9Fe0.1O3, a fine adjustment of the Cr valence and strong Sr segregation is observed. An important difference between the two electrodes is their capacity to maintain adsorbed hydroxyl groups on their surface, which is expected to be critical for the electrocatalytic properties of the materials. The insight gained from the surface analysis may serve as a paradigm for understanding the effect of the gas environment on the electrochemical performance and the electrical conductivity of the electrodes.
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Affiliation(s)
- Fotios Paloukis
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-UdS , 25 Rue Becquerel, 67087 Strasbourg, France
| | - Kalliopi M Papazisi
- Chemical Process and Energy Resources Institute/CERTH , 6th km Charilaou-Thermi Road, 57001 Thessaloniki, Greece
| | - Thierry Dintzer
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-UdS , 25 Rue Becquerel, 67087 Strasbourg, France
| | - Vasiliki Papaefthimiou
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-UdS , 25 Rue Becquerel, 67087 Strasbourg, France
| | - Viktoriia A Saveleva
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-UdS , 25 Rue Becquerel, 67087 Strasbourg, France
| | - Stella P Balomenou
- Chemical Process and Energy Resources Institute/CERTH , 6th km Charilaou-Thermi Road, 57001 Thessaloniki, Greece
| | - Dimitrios Tsiplakides
- Chemical Process and Energy Resources Institute/CERTH , 6th km Charilaou-Thermi Road, 57001 Thessaloniki, Greece
- Department of Chemistry, Aristotle University of Thessaloniki , 54124 Thessaloniki, Greece
| | - Fabrice Bournel
- Laboratoire de Chimie Physique-Matière et Rayonnement, Sorbonne Universités, UPMC Universite Paris 06, CNRS , 4 place Jussieu, 75005 Paris, France
- Synchrotron SOLEIL , L'orme des Merisiers, B.P. 48, Saint Aubin, Gif-sur-Yvette, Cedex 91192, France
| | - Jean-Jacques Gallet
- Laboratoire de Chimie Physique-Matière et Rayonnement, Sorbonne Universités, UPMC Universite Paris 06, CNRS , 4 place Jussieu, 75005 Paris, France
- Synchrotron SOLEIL , L'orme des Merisiers, B.P. 48, Saint Aubin, Gif-sur-Yvette, Cedex 91192, France
| | - Spyridon Zafeiratos
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-UdS , 25 Rue Becquerel, 67087 Strasbourg, France
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33
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Kaichev VV, Saraev AA, Gladky AY, Prosvirin IP, Blume R, Teschner D, Hävecker M, Knop-Gericke A, Schlögl R, Bukhtiyarov VI. Reversible Bulk Oxidation of Ni Foil During Oscillatory Catalytic Oxidation of Propane: A Novel Type of Spatiotemporal Self-Organization. PHYSICAL REVIEW LETTERS 2017; 119:026001. [PMID: 28753346 DOI: 10.1103/physrevlett.119.026001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Indexed: 06/07/2023]
Abstract
A novel type of temporal and spatial self-organization in a heterogeneous catalytic reaction is described for the first time. Using in situ x-ray photoelectron spectroscopy, gas chromatography, and mass spectrometry, we show that, under certain conditions, self-sustained reaction-rate oscillations arise in the oxidation of propane over Ni foil because of reversible bulk oxidation of Ni to NiO, which can be observed even with the naked eye as chemical waves propagating over the catalyst surface.
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Affiliation(s)
- V V Kaichev
- Boreskov Institute of Catalysis, Lavrentieva avenue 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova street 2, 630090 Novosibirsk, Russia
| | - A A Saraev
- Boreskov Institute of Catalysis, Lavrentieva avenue 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova street 2, 630090 Novosibirsk, Russia
| | - A Yu Gladky
- Boreskov Institute of Catalysis, Lavrentieva avenue 5, 630090 Novosibirsk, Russia
| | - I P Prosvirin
- Boreskov Institute of Catalysis, Lavrentieva avenue 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova street 2, 630090 Novosibirsk, Russia
| | - R Blume
- Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department of Inorganic Chemistry, Fritz Haber Institute, Faradayweg 4-6, D-14195 Berlin, Germany
| | - D Teschner
- Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department of Inorganic Chemistry, Fritz Haber Institute, Faradayweg 4-6, D-14195 Berlin, Germany
| | - M Hävecker
- Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department of Inorganic Chemistry, Fritz Haber Institute, Faradayweg 4-6, D-14195 Berlin, Germany
| | - A Knop-Gericke
- Department of Inorganic Chemistry, Fritz Haber Institute, Faradayweg 4-6, D-14195 Berlin, Germany
| | - R Schlögl
- Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
- Department of Inorganic Chemistry, Fritz Haber Institute, Faradayweg 4-6, D-14195 Berlin, Germany
| | - V I Bukhtiyarov
- Boreskov Institute of Catalysis, Lavrentieva avenue 5, 630090 Novosibirsk, Russia
- Novosibirsk State University, Pirogova street 2, 630090 Novosibirsk, Russia
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34
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Self-Sustained Oscillations as a Method to Increase an Active Surface and Catalytic Activity of Ni and Pd. Catal Letters 2017. [DOI: 10.1007/s10562-017-2006-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Affiliation(s)
- Robert Schlögl
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Germany
- Max Planck Institute for Chemical Energy Conversion; Stiftstr. 34-36 45470 Mülheim an der Ruhr Germany
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36
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Papaefthimiou V, Niakolas DK, Paloukis F, Dintzer T, Zafeiratos S. Is Steam an Oxidant or a Reductant for Nickel/Doped-Ceria Cermets? Chemphyschem 2017; 18:164-170. [PMID: 27792266 PMCID: PMC5324694 DOI: 10.1002/cphc.201600948] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Indexed: 11/11/2022]
Abstract
Nickel/doped-ceria composites are promising electrocatalysts for solid-oxide fuel and electrolysis cells. Very often steam is present in the feedstock of the cells, frequently mixed with other gases, such as hydrogen or CO2 . An increase in the steam concentration in the feed mixture is considered accountable for the electrode oxidation and the deactivation of the device. However, direct experimental evidence of the steam interaction with nickel/doped-ceria composites, with adequate surface specificity, are lacking. Herein we explore in situ the surface state of nickel/gadolinium-doped ceria (NiGDC) under O2 , H2 , and H2 O environments by using near-ambient-pressure X-ray photoelectron and absorption spectroscopies. Changes in the surface oxidation state and composition of NiGDC in response to the ambient gas are observed. It is revealed that, in the mbar pressure regime and at intermediate temperature conditions (500-700 °C), steam acts as an oxidant for nickel but has a dual oxidant/reductant function for doped ceria.
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Affiliation(s)
- Vasiliki Papaefthimiou
- Institut de Chimie et Procédés pour l'Energie l'Environnement et la Santé (ICPEES), ECPM, UMR 7515, CNRS-Université de Strasbourg, 25, rue Becquerel, 67087, Strasbourg Cedex 02, France
| | | | - Fotios Paloukis
- Institut de Chimie et Procédés pour l'Energie l'Environnement et la Santé (ICPEES), ECPM, UMR 7515, CNRS-Université de Strasbourg, 25, rue Becquerel, 67087, Strasbourg Cedex 02, France
| | - Thierry Dintzer
- Institut de Chimie et Procédés pour l'Energie l'Environnement et la Santé (ICPEES), ECPM, UMR 7515, CNRS-Université de Strasbourg, 25, rue Becquerel, 67087, Strasbourg Cedex 02, France
| | - Spyridon Zafeiratos
- Institut de Chimie et Procédés pour l'Energie l'Environnement et la Santé (ICPEES), ECPM, UMR 7515, CNRS-Université de Strasbourg, 25, rue Becquerel, 67087, Strasbourg Cedex 02, France
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37
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Zhou X, Jiang YF, Guo HL, Wang X, Liu YN, Imran M, Xu AW. Hydrogenation/oxidation triggered highly efficient reversible color switching of organic molecules. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02585d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reversible hydrogenation/oxidative dehydrogenation process of TH+/LTH over a highly active Pd–ZnO1−x hybrid catalyst under ambient conditions.
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Affiliation(s)
- Xiao Zhou
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - Yi-Fan Jiang
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - Hong-Li Guo
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - Xin Wang
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - Ya-Nan Liu
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - M. Imran
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
| | - An-Wu Xu
- Division of Nanomaterials and Chemistry
- Hefei National Laboratory for Physical Sciences at Microscale Department
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
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38
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Saraev AA, Vinokurov ZS, Kaichev VV, Shmakov AN, Bukhtiyarov VI. The origin of self-sustained reaction-rate oscillations in the oxidation of methane over nickel: an operando XRD and mass spectrometry study. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02673g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The self-sustained kinetic oscillations in the catalytic oxidation of methane over Ni foil have been studied at atmospheric pressure using an X-ray diffraction technique and mass spectrometry.
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Affiliation(s)
- A. A. Saraev
- Boreskov Institute of Catalysis
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - Z. S. Vinokurov
- Boreskov Institute of Catalysis
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - V. V. Kaichev
- Boreskov Institute of Catalysis
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - A. N. Shmakov
- Boreskov Institute of Catalysis
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
| | - V. I. Bukhtiyarov
- Boreskov Institute of Catalysis
- Novosibirsk
- Russia
- Novosibirsk State University
- Novosibirsk
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