51
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chu B, Ou X, Wei L, Liu H, chen K, Qin Q, Meng L, Fan M, Li B, Dong L. Insight into the effect of oxygen vacancies and OH groups on anatase TiO2 for CO oxidation: A combined FT-IR and density functional theory study. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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52
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Qi T, Li W, Li H, Ji K, Chen S, Zhang Y. Yttria-doped Cu/ZnO catalyst with excellent performance for CO2 hydrogenation to methanol. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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53
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Hernández‐Giménez AM, Kort LM, Whiting GT, Hernando H, Puértolas B, Pérez‐Ramírez J, Serrano DP, Bruijnincx PCA, Weckhuysen BM. Upscaling Effects on Alkali Metal‐Grafted Ultrastable Y Zeolite Extrudates for Modeled Catalytic Deoxygenation of Bio‐oils. ChemCatChem 2021. [DOI: 10.1002/cctc.202001840] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana M. Hernández‐Giménez
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Laura M. Kort
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Gareth T. Whiting
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Héctor Hernando
- Thermochemical Processes Unit IMDEA Energy Institute 28935 Móstoles, Madrid Spain
| | - Begoña Puértolas
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - David P. Serrano
- Thermochemical Processes Unit IMDEA Energy Institute 28935 Móstoles, Madrid Spain
- Environmental and Chemical Engineering Group Rey Juan Carlos University 28933 Móstoles, Madrid Spain
| | - Pieter C. A. Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
- Organic Chemistry and Catalysis Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science Utrecht University Universiteitsweg 99 3584 CG Utrecht The Netherlands
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54
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Hasan M, Asakoshi T, Muroyama H, Matsui T, Eguchi K. CO 2 methanation mechanism over Ni/Y 2O 3: an in situ diffuse reflectance infrared Fourier transform spectroscopic study. Phys Chem Chem Phys 2021; 23:5551-5558. [PMID: 33651045 DOI: 10.1039/d0cp06257j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supported Ni catalysts are active in CO2 methanation. It is important to understand the reaction mechanism for the development of highly-active catalysts. In this study, we investigated the reaction pathways of CO2 methanation over Ni/Y2O3 and Ni/Al2O3 based on the adsorbates observed by diffuse reflectance infrared Fourier transform spectroscopy. For Ni/Al2O3, linear and bridged CO adsorbates were converted to nickel carbonyl hydride and/or formyl species, which would be further hydrogenated to methane. In contrast, the formation of formate adsorbates was specifically confirmed over Ni/Y2O3 under the CO2 methanation condition. The hydrogen molecule was activated by dissociatively-adsorbing on Ni particles. Then, the hydrogenation of formate adsorbates by the activated hydrogen species proceeded sequentially to form methane. The observed bridged CO species would not be a major intermediate for Ni/Y2O3.
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Affiliation(s)
- Masitah Hasan
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Toshiki Asakoshi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Hiroki Muroyama
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Toshiaki Matsui
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
| | - Koichi Eguchi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan.
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55
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Ojha N, Bajpai A, Kumar S. Enriched oxygen vacancies of Cu2O/SnS2/SnO2 heterostructure for enhanced photocatalytic reduction of CO2 by water and nitrogen fixation. J Colloid Interface Sci 2021; 585:764-777. [DOI: 10.1016/j.jcis.2020.10.056] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/09/2020] [Accepted: 10/18/2020] [Indexed: 12/17/2022]
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56
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Abstract
Despite its high thermodynamic stability, the presence of a negative electric field is known to facilitate the activation of CO2 through electrostatic effects. To utilize electric fields for a reverse water gas shift reaction, it is critical to elucidate the role of an electric field on a catalyst surface toward activating a CO2 molecule. We conduct a first-principles study to gain an atomic and electronic description of adsorbed CO2 on YSZ (111) surfaces when external electric fields of +1 V/Å, 0 V/Å, and −1 V/Å are applied. We find that the application of an external electric field generally destabilizes oxide bonds, where the direction of the field affects the location of the most favorable oxygen vacancy. The direction of the field also drastically impacts how CO2 adsorbs on the surface. CO2 is bound by physisorption when a +1 V/Å field is applied, a similar interaction as to how it is adsorbed in the absence of a field. This interaction changes to chemisorption when the surface is exposed to a −1 V/Å field value, resulting in the formation of a CO3− complex. The strong interaction is reflected through a direct charge transfer and an orbital splitting within the Olatticep-states. While CO2 remains physisorbed when a +1 V/Å field value is applied, our total density of states analysis indicates that a positive field pulls the charge away from the adsorbate, resulting in a shift of its bonding and antibonding peaks to higher energies, allowing a stronger interaction with YSZ (111). Ultimately, the effect of an electric field toward CO2 adsorption is not negligible, and there is potential in utilizing electric fields to favor the thermodynamics of CO2 reduction on heterogeneous catalysts.
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57
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Naya SI, Yoshioka H, Tada H. Ammonium ion-promoted electrochemical production of synthetic gas from water and carbon dioxide on a fluorine-doped tin oxide electrode. Chem Commun (Camb) 2021; 57:1438-1441. [PMID: 33479705 DOI: 10.1039/d0cc08040c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In situ generated Sn nanoparticles on fluorine-doped tin oxide act as an electrocatalyst for the CO2 reduction reaction to efficiently and stably produce synthetic gas from water and carbon dioxide with the reaction rate drastically enhanced by the addition of ammonium ions.
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Affiliation(s)
- Shin-Ichi Naya
- Environmental Research Laboratory, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hisayoshi Yoshioka
- Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Hiroaki Tada
- Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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58
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Watschinger M, Ploner K, Winkler D, Kunze-Liebhäuser J, Klötzer B, Penner S. Operando Fourier-transform infrared-mass spectrometry reactor cell setup for heterogeneous catalysis with glovebox transfer process to surface-chemical characterization. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:024105. [PMID: 33648094 DOI: 10.1063/5.0041437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 01/24/2021] [Indexed: 06/12/2023]
Abstract
We describe a new type of operando Fourier transform infrared (FTIR)-mass spectrometry setup for surface-chemical and reactivity characterization of heterogeneous catalysts. On the basis of a sophisticated all-quartz FTIR reactor cell, capable of operating between room temperature and 1000 °C in reactive gas atmospheres, the setup offers a unique opportunity to simultaneously collect and accordingly correlate FTIR surface-chemical adsorption data of the active catalyst state and FTIR gas phase data with complementary reactivity data obtained via mass spectrometry in situ. The full set of catalytic operation modes (recirculating static and flow reactor conditions) is accessible and can be complemented with a variety of temperature-programmed reaction modes or thermal desorption. Due to the unique transfer process involving a home-built portable glovebox to avoid air exposure, a variety of complementary quasi in situ characterization methods for the pre- and post-reaction catalyst states become accessible. We exemplify the capabilities for additional x-ray photoelectron spectroscopy characterization of surface-chemical states, highlighting the unique strength of combining adsorption, electronic structure, and reactivity data to gain detailed insight into the reactive state of a Cu/ZrO2 heterogeneous catalyst during methanol steam reforming operation.
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Affiliation(s)
- Maximilian Watschinger
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Kevin Ploner
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Daniel Winkler
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Julia Kunze-Liebhäuser
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Bernhard Klötzer
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
| | - Simon Penner
- Department of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020 Innsbruck, Austria
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59
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Zhao PP, Chen J, Yu HB, Cen BH, Wang WY, Luo MF, Lu JQ. Insights into propane combustion over MoO3 promoted Pt/ZrO2 catalysts: The generation of Pt-MoO3 interface and its promotional role on catalytic activity. J Catal 2020. [DOI: 10.1016/j.jcat.2020.08.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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60
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Malik AS, Zaman SF, Al-Zahrani AA, Daous MA, Driss H, Petrov LA. Selective hydrogenation of CO2 to CH3OH and in-depth DRIFT analysis for PdZn/ZrO2 and CaPdZn/ZrO2 catalysts. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.05.040] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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61
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Smyrnioti M, Tampaxis C, Steriotis T, Ioannides T. Study of CO2 adsorption on a commercial CuO/ZnO/Al2O3 catalyst. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.07.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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62
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Ploner K, Watschinger M, Kheyrollahi Nezhad PD, Götsch T, Schlicker L, Köck EM, Gurlo A, Gili A, Doran A, Zhang L, Köwitsch N, Armbrüster M, Vanicek S, Wallisch W, Thurner C, Klötzer B, Penner S. Mechanistic insights into the catalytic methanol steam reforming performance of Cu/ZrO2 catalysts by in situ and operando studies. J Catal 2020. [DOI: 10.1016/j.jcat.2020.09.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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63
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64
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Castillo R, Dominguez Garcia E, Santos J, Centeno M, Romero Sarria F, Daturi M, Odriozola J. Upgrading the PtCu intermetallic compounds: The role of Pt and Cu in the alloy. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.11.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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65
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Sun Q, Chen BWJ, Wang N, He Q, Chang A, Yang CM, Asakura H, Tanaka T, Hülsey MJ, Wang CH, Yu J, Yan N. Zeolite-Encaged Pd-Mn Nanocatalysts for CO 2 Hydrogenation and Formic Acid Dehydrogenation. Angew Chem Int Ed Engl 2020; 59:20183-20191. [PMID: 32770613 DOI: 10.1002/anie.202008962] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/05/2020] [Indexed: 11/09/2022]
Abstract
A CO2 -mediated hydrogen storage energy cycle is a promising way to implement a hydrogen economy, but the exploration of efficient catalysts to achieve this process remains challenging. Herein, sub-nanometer Pd-Mn clusters were encaged within silicalite-1 (S-1) zeolites by a ligand-protected method under direct hydrothermal conditions. The obtained zeolite-encaged metallic nanocatalysts exhibited extraordinary catalytic activity and durability in both CO2 hydrogenation into formate and formic acid (FA) dehydrogenation back to CO2 and hydrogen. Thanks to the formation of ultrasmall metal clusters and the synergic effect of bimetallic components, the PdMn0.6 @S-1 catalyst afforded a formate generation rate of 2151 molformate molPd -1 h-1 at 353 K, and an initial turnover frequency of 6860 mol H 2 molPd -1 h-1 for CO-free FA decomposition at 333 K without any additive. Both values represent the top levels among state-of-the-art heterogeneous catalysts under similar conditions. This work demonstrates that zeolite-encaged metallic catalysts hold great promise to realize CO2 -mediated hydrogen energy cycles in the future that feature fast charge and release kinetics.
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Affiliation(s)
- Qiming Sun
- NUS Environmental Research Institute (NERI), National University of Singapore, 138602, Singapore, Singapore.,Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Benjamin W J Chen
- Institute of High Performance Computing, Agency for Science, Technology and Research, 1 Fusionopolis Way, #16-16 Connexis, Singapore, 138632, Singapore
| | - Ning Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Qian He
- Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117575, Singapore
| | - Albert Chang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Chia-Min Yang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Hiroyuki Asakura
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Max J Hülsey
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Chi-Hwa Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, Changchun, 130012, P. R. China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore, Singapore
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66
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Sun Q, Chen BWJ, Wang N, He Q, Chang A, Yang C, Asakura H, Tanaka T, Hülsey MJ, Wang C, Yu J, Yan N. Zeolite‐Encaged Pd–Mn Nanocatalysts for CO
2
Hydrogenation and Formic Acid Dehydrogenation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008962] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Qiming Sun
- NUS Environmental Research Institute (NERI) National University of Singapore 138602 Singapore Singapore
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Benjamin W. J. Chen
- Institute of High Performance Computing Agency for Science, Technology and Research 1 Fusionopolis Way, #16-16 Connexis Singapore 138632 Singapore
| | - Ning Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry International Center of Future Science Jilin University Changchun 130012 P. R. China
| | - Qian He
- Department of Materials Science and Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117575 Singapore
| | - Albert Chang
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Chia‐Min Yang
- Department of Chemistry National Tsing Hua University Hsinchu 30013 Taiwan
| | - Hiroyuki Asakura
- Department of Molecular Engineering Graduate School of Engineering Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering Graduate School of Engineering Kyoto University, Kyotodaigaku Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Max J. Hülsey
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Chi‐Hwa Wang
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry International Center of Future Science Jilin University Changchun 130012 P. R. China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117585 Singapore Singapore
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67
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Suzuki T, Sackmann A, Oprea A, Weimar U, Bârsan N. Chemoresistive CO 2 Gas Sensors Based On La 2O 2CO 3: Sensing Mechanism Insights Provided by Operando Characterization. ACS Sens 2020; 5:2555-2562. [PMID: 32786387 DOI: 10.1021/acssensors.0c00882] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Our previous studies demonstrated that rare-earth oxycarbonates Ln2O2CO3 (Ln = La, Nd, and Sm) and rare-earth oxides Ln2O3 (Ln = Nd, Sm, Gd, Dy, Er, and Yb) are sensitive to CO2 and that hexagonal La2O2CO3 is the best among them in terms of sensitivity, stability, and selectivity. In this study, we have conducted a comprehensive operando characterization on a hexagonal La2O2CO3 based sensor for the basic understanding of the sensing mechanism. This was done by performing under actual operating conditions simultaneous DC resistance and work function changes measurements, AC impedance spectroscopy measurements, and simultaneous DC resistance and DRIFT spectroscopy measurements. The results demonstrate that the double Schottky barriers at grain-grain boundaries are dominant contribution to sensor resistance; there is a competitive adsorption between carbonate species and hydroxyl groups, which depends on both CO2 concentration and humidity and leads to the change in height of the Schottky barriers. Finally, we propose a reaction model stating that there are three types of adsorbates, -CO32-, -OH-, and -O2-, and the relative concentration of which is controlled by a reaction with ambient humidity and CO2. This model is able to consistently explain all our experimental findings.
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Affiliation(s)
- Takuya Suzuki
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
- Corporate R&D Headquarters, Fuji electric Co. Ltd., Hino-city Tokyo 1918502, Japan
| | - Andre Sackmann
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Alexandru Oprea
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Udo Weimar
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
| | - Nicolae Bârsan
- Institute of Physical and Theoretical Chemistry, University of Tuebingen, Auf der Morgenstelle 15, Tuebingen 72076, Germany
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68
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Elucidation of Water Promoter Effect of Proton Conductor in WGS Reaction over Pt-Based Catalyst: An Operando DRIFTS Study. Catalysts 2020. [DOI: 10.3390/catal10080841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A conventional Pt/CeO2/Al2O3 catalyst physically mixed with an ionic conductor (Mo- or Eu-doped ZrO2) was tested at high space velocity (20,000 h−1 and 80 L h−1 gcat−1) under model conditions (only with CO and H2O) and industrial conditions, with a realistic feed. The promoted system with the ionic conductor physically mixed showed better catalytic activity associated with better water dissociation and mobility, considered as a rate-determining step. The water activation was assessed by operando diffuse reflectance infrared fourier transformed spectroscopy (DRIFTS) studies under reaction conditions and the Mo-containing ionic conductor exhibited the presence of both dissociated (3724 cm−1) and physisorbed (5239 cm−1) water on the Eu-doped ZrO2 solid solution, which supports the appearance of proton conductivity by Grotthuss mechanism. Moreover, the band at 3633 cm−1 ascribed to hydrated Mo oxide, which increases with the temperature, explains the increase of catalytic activity when the physical mixture was used in a water gas shift (WGS) reaction.
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69
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Maleki F, Pacchioni G. Characterization of Acid and Basic Sites on Zirconia Surfaces and Nanoparticles by Adsorbed Probe Molecules: A Theoretical Study. Top Catal 2020. [DOI: 10.1007/s11244-020-01328-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AbstractAcid and basic sites on monoclinic and tetragonal zirconia were investigated at the DFT level by computing IR and NMR properties of adsorbed probe molecules. Regular and stepped ZrO2 surfaces as well as stoichiometric zirconia nanoparticles have been considered. Acidity and basicity were probed by the adsorption of carbon monoxide and pyrrole, respectively. CO adsorption shows a positive shift of the C–O stretching frequency in IR spectra while the C atom of CO is shielded and 13C chemical shifts moves to higher field as a function of the strength of the acid site. For the study of basic sites we used a pyrrole molecule, but the interaction between the pyrrole ring and the surface leads to adsorption modes that cannot be used to titrate the surface basicity. On the other hand, at high coverage the molecule assumes an upright position and the formation of a hydrogen bond of the pyrrole NH group with the oxygen atoms of the surfaces provides a proxy of the basic properties of these sites. In particular, we focus on changes of the N–H IR frequency, 1H, 15N, and 17O NMR chemical shifts and their correlations with the surface basicity. Among the correlations found, that between the N–H stretching frequency of adsorbed pyrrole and the 17O NMR chemical shift of the O ion where the molecule is bound show a nice linear correlation. These two properties can provide useful information about the basic character of various O sites on the surface of zirconia.
Graphic Abstract
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70
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Selective photocatalytic CO 2 reduction over Zn-based layered double hydroxides containing tri or tetravalent metals. Sci Bull (Beijing) 2020; 65:987-994. [PMID: 36659027 DOI: 10.1016/j.scib.2020.03.032] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/15/2020] [Accepted: 03/18/2020] [Indexed: 01/21/2023]
Abstract
Photocatalytic CO2 reduction holds promise as a future technology for the manufacture of fuels and commodity chemicals. However, factors controlling product selectivity remain poorly understood. Herein, we compared the performance of a homologous series of Zn-based layered double hydroxide (ZnM-LDH) photocatalysts for CO2 reduction. By varying the trivalent or tetravalent metal cations in the ZnM-LDH photocatalysts (M = Ti4+, Fe3+, Co3+, Ga3+, Al3+), the product selectivity of the reaction could be precisely controlled. ZnTi-LDH afforded CH4 as the main reduction product; ZnFe-LDH and ZnCo-LDH yielded H2 exclusively from water splitting; whilst ZnGa-LDH and ZnAl-LDH generated CO. In-situ diffuse reflectance infrared measurements, valence band XPS and density function theory calculations were applied to rationalize the CO2 reduction selectivities of the different ZnM-LDH photocatalysts. The analyses revealed that the d-band center (εd) position of the M3+ or M4+ cations controlled the adsorption strength of CO2 and thus the selectivity to carbon-containing products or H2. Cations with d-band centers relatively close to the Fermi level (Ti4+, Ga3+ and Al3+) adsorbed CO2 strongly yielding CH4 or CO, whereas metal cations with d-band centers further from the Fermi level (Fe3+ and Co3+) adsorbed CO2 poorly, thereby yielding H2 only (from water splitting). Our findings clarify the role of trivalent and tetravalent metal cations in LDH photocatalysts for the selective CO2 reduction, paving new ways for the development of improved LDH photocatalyst with high selectivities to specific products.
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71
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Moradzaman M, Mul G. Infrared Analysis of Interfacial Phenomena during Electrochemical Reduction of CO2 over Polycrystalline Copper Electrodes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02130] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Mozhgan Moradzaman
- Photocatalytic Synthesis Group, Faculty of Science & Technology of the University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Guido Mul
- Photocatalytic Synthesis Group, Faculty of Science & Technology of the University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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72
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Defects in nanosilica catalytically convert CO 2 to methane without any metal and ligand. Proc Natl Acad Sci U S A 2020; 117:6383-6390. [PMID: 32156731 DOI: 10.1073/pnas.1917237117] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Active and stable metal-free heterogeneous catalysts for CO2 fixation are required to reduce the current high level of carbon dioxide in the atmosphere, which is driving climate change. In this work, we show that defects in nanosilica (E' centers, oxygen vacancies, and nonbridging oxygen hole centers) convert CO2 to methane with excellent productivity and selectivity. Neither metal nor complex organic ligands were required, and the defect alone acted as catalytic sites for carbon dioxide activation and hydrogen dissociation and their cooperative action converted CO2 to methane. Unlike metal catalysts, which become deactivated with time, the defect-containing nanosilica showed significantly better stability. Notably, the catalyst can be regenerated by simple heating in the air without the need for hydrogen gas. Surprisingly, the catalytic activity for methane production increased significantly after every regeneration cycle, reaching more than double the methane production rate after eight regeneration cycles. This activated catalyst remained stable for more than 200 h. Detailed understanding of the role of the various defect sites in terms of their concentrations and proximities as well as their cooperativity in activating CO2 and dissociating hydrogen to produce methane was achieved.
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73
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Liao WM, Zhao PP, Cen BH, Jia AP, Lu JQ, Luo MF. Co–Cr–O mixed oxides for low–temperature total oxidation of propane: Structural effects, kinetics, and spectroscopic investigation. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63480-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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74
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Wang T, Xing JY, Jia AP, Tang C, Wang YJ, Luo MF, Lu JQ. CO oxidation over Pt/Cr1.3Fe0.7O3 catalysts: Enhanced activity on single Pt atom by H2O promotion. J Catal 2020. [DOI: 10.1016/j.jcat.2019.12.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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75
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Vlasenko NV, Kyriienko PI, Valihura KV, Kosmambetova GR, Soloviev SO, Strizhak PE. Yttria-Stabilized Zirconia as a High-Performance Catalyst for Ethanol to n-Butanol Guerbet Coupling. ACS OMEGA 2019; 4:21469-21476. [PMID: 31867542 PMCID: PMC6921634 DOI: 10.1021/acsomega.9b03170] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 11/19/2019] [Indexed: 05/14/2023]
Abstract
It has been shown that yttria-stabilized zirconia is an effective catalyst for ethanol to n-butanol Guerbet coupling. The variation of the calcination temperature allows an improvement in the catalytic characteristics of this material via stabilization of the tetragonal phase of zirconia, having higher basicity than the monoclinic one. The treatment of yttria-stabilized zirconia at an optimal calcination temperature of 500 °C induces the increase in surface basicity required for the aldol condensation step, along with a decrease in surface acidity, which is responsible for the side reaction such as ethylene formation. The catalyst obtained significantly exceeds in selectivity and n-butanol yield than individual zirconia and other oxide systems which have been studied in this reaction.
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76
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Yu X, Moldovan S, Ordomsky VV, Khodakov AY. Design of core-shell titania-heteropolyacid-metal nanocomposites for photocatalytic reduction of CO 2 to CO at ambient temperature. NANOSCALE ADVANCES 2019; 1:4321-4330. [PMID: 36134426 PMCID: PMC9417624 DOI: 10.1039/c9na00398c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/08/2019] [Indexed: 06/03/2023]
Abstract
The photocatalytic conversion of CO2 not only reduces the greenhouse effect, but also provides value-added solar fuels and chemicals. Herein, we report the design of new efficient core-shell nanocomposites for selective photocatalytic CO2 to CO conversion, which occurs at ambient temperature. A combination of characterization techniques (TEM, STEM-EDX, XPS, XRD, FTIR photoluminescence) indicates that the CO2 reduction occurs over zinc species highly dispersed on the heteropolyacid/titania core-shell nanocomposites. These core-shell structures create a semiconductor heterojunction, which increases charge separation and the lifetime of charge carriers' and leads to higher electron flux. In situ FTIR investigation of the reaction mechanism revealed that the reaction involved surface zinc bicarbonates as key reaction intermediates. In a series of catalysts containing noble and transition metals, zinc phosphotungstic acid-titania nanocomposites exhibit high activity reaching 50 μmol CO g-1 h-1 and selectivity (73%) in the CO2 photocatalytic reduction to CO at ambient temperature. The competitive water splitting reaction has been significantly suppressed over the Zn sites in the presence of CO2.
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Affiliation(s)
- Xiang Yu
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide F-59000 Lille France
| | - Simona Moldovan
- Groupe de Physique des Matériaux, CNRS, Université Normandie & INSA Rouen Avenue de l'Université - BP12 76801 St Etienne du Rouvray France
| | - Vitaly V Ordomsky
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide F-59000 Lille France
- Eco-Efficient Products and Processes Laboratory (E2P2L), UMI 3464, CNRS-Solvay 201108 Shanghai People's Republic of China
| | - Andrei Y Khodakov
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide F-59000 Lille France
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77
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Yoshizawa S, Huang Z, Teramura K, Asakura H, Hosokawa S, Tanaka T. Important Role of Strontium Atom on the Surface of Sr 2KTa 5O 15 with a Tetragonal Tungsten Bronze Structure to Improve Adsorption of CO 2 for Photocatalytic Conversion of CO 2 by H 2O. ACS APPLIED MATERIALS & INTERFACES 2019; 11:37875-37884. [PMID: 31550116 DOI: 10.1021/acsami.9b14671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sr1.6K0.37Na1.43Ta5O15, which belongs to the Na-substituted Sr2KTa5O15 series of compounds with a tetragonal tungsten bronze structure, was fabricated using a flux mixture of KCl and NaCl (KCl/NaCl molar ratio = 55:45). It exhibited higher CO formation rate (94.6 μmol h-1), better selectivity for CO evolution (85.5%), and better stability of the photocatalytic activity than those of bare Sr2KTa5O15 and other Na-substituted Sr2KTa5O15 samples synthesized from flux mixtures with different KCl/NaCl ratios. X-ray photoelectron spectroscopic studies revealed that the surface atomic Sr/Ta ratio of Sr1.6K0.37Na1.43Ta5O15 was larger than that of Sr2KTa5O15. To clarify the factor responsible for the improvement in the photocatalytic activity facilitated by Na substitution, as well as to elucidate the reaction mechanism, the surface species were characterized by in situ Fourier transform infrared spectroscopy. It was observed that the bicarbonate species (HCO3-) adsorbed on the active Sr sites of Sr1.6K0.37Na1.43Ta5O15 was reduced to CO via the formate species during photoirradiation. The plot of the CO formation rate vs. the surface atomic Sr/Ta ratio for tetragonal tungsten bronze-type Sr-K-Ta-O complex oxides had the summit, indicating that Sr atoms on the surface enhance the photocatalytic activity, while an excessive amount of Sr on the surface leads to the decrease in the photocatalytic activity. Hence, it can be concluded that while the presence of Sr on the surface has a determining effect on the adsorption of CO2 and eventually on the photocatalytic activity, excess Sr on the surface that exists as SrCO3 or Sr2Ta2O7 suppresses the photocatalytic activity. Thus, Sr1.6K0.37Na1.43Ta5O15 showed higher CO formation rate than Sr2KTa5O15 did.
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Affiliation(s)
- Sumika Yoshizawa
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Zeai Huang
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
| | - Kentaro Teramura
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
- Element Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
| | - Hiroyuki Asakura
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
- Element Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
| | - Saburo Hosokawa
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
- Element Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
| | - Tsunehiro Tanaka
- Department of Molecular Engineering, Graduate School of Engineering , Kyoto University , Kyotodaigaku Katsura, Nishikyo-ku, Kyoto 615-8510 , Japan
- Element Strategy Initiative for Catalysts and Batteries (ESICB) , Kyoto University , 1-30 Goryo-Ohara , Nishikyo-ku, Kyoto 615-8245 , Japan
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Kim J, Sarma BB, Andrés E, Pfänder N, Concepción P, Prieto G. Surface Lewis Acidity of Periphery Oxide Species as a General Kinetic Descriptor for CO2 Hydrogenation to Methanol on Supported Copper Nanoparticles. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02412] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonglack Kim
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Bidyut B. Sarma
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Eva Andrés
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Norbert Pfänder
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstraße 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Patricia Concepción
- ITQ Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Gonzalo Prieto
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
- ITQ Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
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79
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Zhang Z, Zhang L, Hülsey MJ, Yan N. Zirconia phase effect in Pd/ZrO2 catalyzed CO2 hydrogenation into formate. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110461] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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80
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Li YF, Lu W, Chen K, Duchesne P, Jelle A, Xia M, Wood TE, Ulmer U, Ozin GA. Cu Atoms on Nanowire Pd/HyWO3–x Bronzes Enhance the Solar Reverse Water Gas Shift Reaction. J Am Chem Soc 2019; 141:14991-14996. [DOI: 10.1021/jacs.9b08030] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Young Feng Li
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Waylon Lu
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Kai Chen
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Paul Duchesne
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Abdinoor Jelle
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Meikun Xia
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Thomas E. Wood
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Ulrich Ulmer
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Geoffrey A. Ozin
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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81
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Effect of Preparation Method on ZrO2-Based Catalysts Performance for Isobutanol Synthesis from Syngas. Catalysts 2019. [DOI: 10.3390/catal9090752] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Two types of amorphous ZrO2 (am-ZrO2) catalysts were prepared by different co-precipitation/reflux digestion methods (with ethylenediamine and ammonia as the precipitant respectively). Then, copper and potassium were introduced for modifying ZrO2 via an impregnation method to enhance the catalytic performance. The obtained catalysts were further characterized by means of Brunauer-Emmett-Teller surface areas (BET), X-ray diffraction (XRD), H2-temperature-programmed reduction (H2-TPR), and In situ diffuse reflectance infrared spectroscopy (in situ DRIFTS). CO hydrogenation experiments were performed in a fixed-bed reactor for isobutanol synthesis. Great differences were observed on the distribution of alcohols over the two types of ZrO2 catalysts, which were promoted with the same content of Cu and K. The selectivity of isobutanol on K-CuZrO2 (ammonia as precipitant, A-KCZ) was three times higher than that on K-CuZrO2 (ethylenediamine as precipitant, E-KCZ). The characterization results indicated that the A-KCZ catalyst supplied more active hydroxyls (isolated hydroxyls) for anchoring and dispersing Cu. More importantly, it was found that bicarbonate species were formed, which were ascribed as important C1 species for isobutanol formation on the A-KCZ catalyst surface. These C1 intermediates had relatively stronger adsorption strength than those adsorbed on the E-KCZ catalyst, indicating that the bicarbonate species on the A-KCZ catalyst had a longer residence time for further carbon chain growth. Therefore, the selectivity of isobutanol was greatly enhanced. These findings would extend the horizontal of direct alcohols synthesis from syngas.
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82
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Comparative study on the catalytic activity of Fe-doped ZrO 2 nanoparticles without significant toxicity through chemical treatment under various pH conditions. Sci Rep 2019; 9:10965. [PMID: 31358847 PMCID: PMC6662761 DOI: 10.1038/s41598-019-47443-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 07/16/2019] [Indexed: 12/15/2022] Open
Abstract
Despite advances in the construction of catalysts based on metal oxide nanoparticles (MO NPs) for various industrial, biomedical, and daily-life applications, the biosafety concerns about these NPs still remain. Recently, the need to analyze and improve the safety of MO NPs along with attempts to enhance their catalytic performance has been strongly perceived. Here, we prepared multiple variants of Fe-doped zirconium oxide (Fe@ZrO2) NPs under different pH conditions; then, we assessed their toxicity and finally screened the variant that exhibited the best catalytic performance. To assess the NP toxicity, the prepared NPs were introduced into three types of human cells originally obtained from different body parts likely to be most affected by NPs (skin, lung, and kidney). Experimental results from conventional cellular toxicity assays including recently available live-cell imaging indicated that none of the variants exerted severe negative effects on the viability of the human cells and most NPs were intracellular localized outside of nucleus, by which severe genotoxicity is unexpected. In contrast, Fe@ZrO2 NPs synthesized under a basic condition (pH = 13.0), exhibited the highest catalytic activities for three different reactions; each was biochemical (L-cysteine oxidation) or photochemical one (4-chlorophenol degradation and OH radical formation with benzoic acid). This study demonstrates that catalytic Fe@ZrO2 NPs with enhanced activities and modest or insignificant toxicity can be effectively developed and further suggests a potential for the use of these particles in conventional chemical reactions as well as in recently emerging biomedical and daily-life nanotechnology applications.
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83
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Grünbacher M, Klötzer B, Penner S. CO 2 Reduction by Hydrogen Pre-Reduced Acceptor-Doped Ceria. Chemphyschem 2019; 20:1706-1718. [PMID: 31087748 DOI: 10.1002/cphc.201900314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/14/2019] [Indexed: 11/11/2022]
Abstract
The reactivity of H2 pre-reduced acceptor-doped ceria materials Gd0.10 Ce0.90 O2-δ (GDC10) and Sm0.15 Ce0.85 O2-δ (SDC15) was tested with respect to the reduction of CO2 to CO in the context of the reverse water-gas shift reaction. It was demonstrated that not only oxygen vacancies, but also dissolved hydrogen is a reactive species for the reduction of CO2 . Dissolved hydrogen must be considered upon discussion of the mechanism of the reverse water-gas shift reaction on ceria-derived materials apart from oxygen vacancies and formates. The reduction of CO2 is preceded by the formation of carbonate species of different thermal stability and reactivity. The stability of these carbonates was directly demonstrated by in situ infrared spectroscopy and revealed the largely reversible nature of CO2 ad- and desorption. In comparison to pre-reduced samples, decreased carbonate coverage is obtained after oxidative treatments of GDC10 and SDC15. No significant effect of the sample treatment (O2 oxidation or H2 reduction) on the surface carbonate stability was noticed. Mono-dentate carbonates and carboxylates appear to be more easily formed on pre-reduced (i. e. defective) samples. Ce4+ reduction to Ce3+ (by H2 ) and re-oxidation to Ce4+ (by CO2 ) on GDC10/SDC15 were directly monitored by infrared spectroscopic analysis of a distinct, IR-active electronic transition of Ce3+ . These results show the complex interplay of oxygen vacancy/dissolved hydrogen reactivity and surface chemical aspects in acceptor-doped ceria materials.
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Affiliation(s)
- Matthias Grünbacher
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck
| | - Bernhard Klötzer
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck
| | - Simon Penner
- Institute of Physical Chemistry, University of Innsbruck, Innrain 52c, A-6020, Innsbruck
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84
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Influence of CO2 and H2O co-feeding in the NOx abatement by SCR over an efficient Cu-CHA catalyst. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.02.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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85
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Grand J, Talapaneni SN, Aleksandrov HA, Vayssilov GN, Mintova S. Hydrophobic Tungsten-Containing MFI-Type Zeolite Films for Exhaust Gas Detection. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12914-12919. [PMID: 30859810 DOI: 10.1021/acsami.8b17626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The assembly of highly hydrophobic nanosized tungsten-containing MFI-type zeolite nanocrystals (W-MFI) in films and further use of the films for selective exhaust gas (CO, CO2, NO, and NO2) detection were investigated by operando IR spectroscopy. Because of the hydrophobic nature and presence of tungsten in the framework, the W-MFI films showed excellent sorption capacity toward all analytes, in comparison to the pure silica (Si-MFI) film. The high sensitivity of the W-MFI film toward low concentration of CO2 and NO2 (1-3 ppm) was demonstrated. In addition, the interactions between the analytes and zeolite films have been studied by quantum chemical calculation modeling of the W centers based on the density functional theory method.
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Affiliation(s)
- Julien Grand
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie Univ, ENSICAEN, UNICAEN, CNRS , 16000 Caen , France
| | - Siddulu Naidu Talapaneni
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie Univ, ENSICAEN, UNICAEN, CNRS , 16000 Caen , France
| | | | - Georgi N Vayssilov
- Faculty of Chemistry and Pharmacy , University of Sofia , 1126 Sofia , Bulgaria
| | - Svetlana Mintova
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie Univ, ENSICAEN, UNICAEN, CNRS , 16000 Caen , France
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86
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Li YF, Soheilnia N, Greiner M, Ulmer U, Wood T, Jelle AA, Dong Y, Yin Wong AP, Jia J, Ozin GA. Pd@H yWO 3- x Nanowires Efficiently Catalyze the CO 2 Heterogeneous Reduction Reaction with a Pronounced Light Effect. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5610-5615. [PMID: 29856203 DOI: 10.1021/acsami.8b04982] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The design of photocatalysts able to reduce CO2 to value-added chemicals and fuels could enable a closed carbon circular economy. A common theme running through the design of photocatalysts for CO2 reduction is the utilization of semiconductor materials with high-energy conduction bands able to generate highly reducing electrons. Far less explored in this respect are low-energy conduction band materials such as WO3. Specifically, we focus attention on the use of Pd nanocrystal decorated WO3 nanowires as a heretofore-unexplored photocatalyst for the hydrogenation of CO2. Powder X-ray diffraction, thermogravimetric analysis, ultraviolet-visible-near infrared, and in situ X-ray photoelectron spectroscopy analytical techniques elucidate the hydrogen tungsten bronze, H yWO3- x, as the catalytically active species formed via the H2 spillover effect by Pd. The existence in H yWO3- x of Brønsted acid hydroxyls OH, W(V) sites, and oxygen vacancies (VO) facilitate CO2 capture and reduction reactions. Under solar irradiation, CO2 reduction attains CO production rates as high as 3.0 mmol gcat-1 hr-1 with a selectivity exceeding 99%. A combination of reaction kinetic studies and in situ diffuse reflectance infrared Fourier transform spectroscopy measurements provide a valuable insight into thermochemical compared to photochemical surface reaction pathways, considered responsible for the hydrogenation of CO2 by Pd@H yWO3- x.
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Affiliation(s)
- Young Feng Li
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Navid Soheilnia
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Mark Greiner
- Fritz-Haber-Institut der Max-Planck-Gesselschaft , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Ulrich Ulmer
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Thomas Wood
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Abdinoor A Jelle
- Department of Materials Science and Engineering , University of Toronto , 184 College Street , Toronto , Ontario M5S 3E4 , Canada
| | - Yuchan Dong
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Annabelle Po Yin Wong
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Jia Jia
- Department of Materials Science and Engineering , University of Toronto , 184 College Street , Toronto , Ontario M5S 3E4 , Canada
| | - Geoffrey A Ozin
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
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87
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Stotz H, Maier L, Boubnov A, Gremminger A, Grunwaldt JD, Deutschmann O. Surface reaction kinetics of methane oxidation over PdO. J Catal 2019. [DOI: 10.1016/j.jcat.2018.12.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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88
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Hernando H, Ochoa-Hernández C, Shamzhy M, Moreno I, Fermoso J, Pizarro P, Coronado JM, Čejka J, Serrano DP. The crucial role of clay binders in the performance of ZSM-5 based materials for biomass catalytic pyrolysis. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02116c] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of agglomerating ZrO2/n-ZSM-5 catalyst with different clays on biomass catalytic pyrolysis is evaluated.
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Affiliation(s)
- Héctor Hernando
- Thermochemical Processes Unit
- IMDEA Energy Institute
- Madrid
- Spain
- Chemical and Environmental Engineering Group
| | | | - Mariya Shamzhy
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- Prague 8
- Czech Republic
| | - Inés Moreno
- Thermochemical Processes Unit
- IMDEA Energy Institute
- Madrid
- Spain
- Chemical and Environmental Engineering Group
| | - Javier Fermoso
- Thermochemical Processes Unit
- IMDEA Energy Institute
- Madrid
- Spain
| | - Patricia Pizarro
- Thermochemical Processes Unit
- IMDEA Energy Institute
- Madrid
- Spain
- Chemical and Environmental Engineering Group
| | | | - Jiří Čejka
- J. Heyrovský Institute of Physical Chemistry
- Czech Academy of Sciences
- Prague 8
- Czech Republic
| | - David P. Serrano
- Thermochemical Processes Unit
- IMDEA Energy Institute
- Madrid
- Spain
- Chemical and Environmental Engineering Group
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89
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Ojha N, Bajpai A, Kumar S. Visible light-driven enhanced CO2 reduction by water over Cu modified S-doped g-C3N4. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01185d] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We synthesized Cu modified S-doped g-C3N4 thin sheets using calcination followed by a wet-impregnation method. The photocatalytic activity was studied for reduction of CO2 to CO and CH4 in the presence of water and a plausible mechanism is explained.
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Affiliation(s)
- Niwesh Ojha
- Gas-Solid Interaction Laboratory
- Department of Chemical and Biochemical Engineering
- Indian Institute of Technology Patna
- Patna
- India
| | - Abhinav Bajpai
- Gas-Solid Interaction Laboratory
- Department of Chemical and Biochemical Engineering
- Indian Institute of Technology Patna
- Patna
- India
| | - Sushant Kumar
- Gas-Solid Interaction Laboratory
- Department of Chemical and Biochemical Engineering
- Indian Institute of Technology Patna
- Patna
- India
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90
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Wang J, Xia T, Wang L, Zheng X, Qi Z, Gao C, Zhu J, Li Z, Xu H, Xiong Y. Enabling Visible-Light-Driven Selective CO2
Reduction by Doping Quantum Dots: Trapping Electrons and Suppressing H2
Evolution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810550] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jin Wang
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; Zhejiang Normal University; Jinhua Zhejiang 321004 P. R. China
| | - Tong Xia
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Lei Wang
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Xusheng Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zeming Qi
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Junfa Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zhengquan Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; Zhejiang Normal University; Jinhua Zhejiang 321004 P. R. China
| | - Hangxun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
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91
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Wang J, Xia T, Wang L, Zheng X, Qi Z, Gao C, Zhu J, Li Z, Xu H, Xiong Y. Enabling Visible-Light-Driven Selective CO2
Reduction by Doping Quantum Dots: Trapping Electrons and Suppressing H2
Evolution. Angew Chem Int Ed Engl 2018; 57:16447-16451. [DOI: 10.1002/anie.201810550] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Jin Wang
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; Zhejiang Normal University; Jinhua Zhejiang 321004 P. R. China
| | - Tong Xia
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Lei Wang
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Xusheng Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zeming Qi
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Chao Gao
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Junfa Zhu
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Zhengquan Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials; Zhejiang Normal University; Jinhua Zhejiang 321004 P. R. China
| | - Hangxun Xu
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale; i ChEM (Collaborative Innovation Center of Chemistry for Energy Materials); School of Chemistry and Materials Science; National Synchrotron Radiation Laboratory; University of Science and Technology of China; Hefei Anhui 230026 P. R. China
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92
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Yabe T, Yamada K, Oguri T, Higo T, Ogo S, Sekine Y. Ni–Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02476] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomohiro Yabe
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Kensei Yamada
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Task Oguri
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Takuma Higo
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Shuhei Ogo
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Yasushi Sekine
- Department of Applied Chemistry, Waseda University, 3-4-1, Okubo, Shinjuku, Tokyo 169-8555, Japan
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93
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Lukashuk L, Yigit N, Rameshan R, Kolar E, Teschner D, Hävecker M, Knop-Gericke A, Schlögl R, Föttinger K, Rupprechter G. Operando Insights into CO Oxidation on Cobalt Oxide Catalysts by NAP-XPS, FTIR, and XRD. ACS Catal 2018; 8:8630-8641. [PMID: 30221030 PMCID: PMC6135594 DOI: 10.1021/acscatal.8b01237] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 08/02/2018] [Indexed: 01/14/2023]
Abstract
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Cobalt
oxide Co3O4 has recently emerged as promising,
noble metal-free catalyst for oxidation reactions but a better understanding
of the active catalyst under working conditions is required for further
development and potential commercialization. An operando approach
has been applied, combining near ambient (atmospheric) pressure X-ray
photoelectron spectroscopy (NAP-XPS), Fourier transform infrared spectroscopy
(FTIR), or X-ray diffraction (XRD) with simultaneous catalytic tests
of CO oxidation on Co3O4, enabling one to monitor
surface and bulk states under various reaction conditions (steady-state
and dynamic conditions switching between CO and O2). On
the basis of the surface-specific chemical information a complex network
of different reaction pathways unfolded: Mars-van-Krevelen (MvK),
CO dissociation followed by carbon oxidation, and formation of carbonates.
A possible Langmuir–Hinshelwood (LH) pathway cannot be excluded
because of the good activity when no oxygen vacancies were detected.
The combined NAP-XPS/FTIR results are in line with a MvK mechanism
above 100 °C, involving the Co3+/Co2+ redox
couple and oxygen vacancy formation. Under steady state, the Co3O4 surface appeared oxidized and the amount of
reduced Co2+ species at/near the surface remained low up
to 200 °C. Only in pure CO, about 15% of surface reduction were
detected, suggesting that the active sites are a minority species.
The operando spectroscopic studies also revealed additional reaction
pathways: CO dissociation followed by carbon reoxidation and carbonate
formation and its decomposition. However, due to their thermal stability
in various atmospheres, the carbonates are rather spectators and also
CO dissociation seems a minor route. This study thus highlights the
benefits of combining operando surface sensitive techniques to gain
insight into catalytically active surfaces.
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Affiliation(s)
- Liliana Lukashuk
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, Vienna 1060, Austria
| | - Nevzat Yigit
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, Vienna 1060, Austria
| | - Raffael Rameshan
- Institute of Physical Chemistry, University of Innsbruck, Innrain 80/82, Innsbruck A-6020, Austria
| | - Elisabeth Kolar
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, Vienna 1060, Austria
| | - Detre Teschner
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, Mülheim an der Ruhr 45470, Germany
| | - Michael Hävecker
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, Mülheim an der Ruhr 45470, Germany
| | - Axel Knop-Gericke
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
| | - Robert Schlögl
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, Berlin 14195, Germany
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, Mülheim an der Ruhr 45470, Germany
| | - Karin Föttinger
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, Vienna 1060, Austria
| | - Günther Rupprechter
- Institute of Materials Chemistry, Technische Universität Wien, Getreidemarkt 9/BC/01, Vienna 1060, Austria
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94
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Kato Y, Yamamoto M, Akatsuka M, Ito R, Ozawa A, Kawaguchi Y, Tanabe T, Yoshida T. Study on carbon dioxide reduction with water over metal oxide photocatalysts. SURF INTERFACE ANAL 2018. [DOI: 10.1002/sia.6542] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yuma Kato
- Applied Chemistry and Bioengineering, Graduate School of Engineering; Osaka City University; Osaka Japan
| | - Muneaki Yamamoto
- Advanced Research Institute for Natural Science and Technology; Osaka City University; Osaka Japan
| | - Masato Akatsuka
- Applied Chemistry and Bioengineering, Graduate School of Engineering; Osaka City University; Osaka Japan
| | - Ryota Ito
- Applied Chemistry and Bioengineering, Graduate School of Engineering; Osaka City University; Osaka Japan
| | - Akiyo Ozawa
- Applied Chemistry and Bioengineering, Graduate School of Engineering; Osaka City University; Osaka Japan
- Corporate Research Laboratories, Research and Development Division; Sakai Chemical Industry, Co., Ltd.; Sakai Japan
| | - Yu Kawaguchi
- Applied Chemistry and Bioengineering, Graduate School of Engineering; Osaka City University; Osaka Japan
| | - Tetsuo Tanabe
- Advanced Research Institute for Natural Science and Technology; Osaka City University; Osaka Japan
| | - Tomoko Yoshida
- Advanced Research Institute for Natural Science and Technology; Osaka City University; Osaka Japan
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95
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Cazzola M, Ferraris S, Boschetto F, Rondinella A, Marin E, Zhu W, Pezzotti G, Vernè E, Spriano S. Green Tea Polyphenols Coupled with a Bioactive Titanium Alloy Surface: In Vitro Characterization of Osteoinductive Behavior through a KUSA A1 Cell Study. Int J Mol Sci 2018; 19:E2255. [PMID: 30071658 PMCID: PMC6121542 DOI: 10.3390/ijms19082255] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 07/24/2018] [Accepted: 07/29/2018] [Indexed: 01/08/2023] Open
Abstract
A chemically-treated titanium alloy (Ti6Al4V) surface, able to induce hydroxyapatite precipitation from body fluids (inorganic mineralization activity), was functionalized with a polyphenolic extract from green tea (tea polyphenols, TPH). Considering that green tea polyphenols have stimulating effects on bone forming cells (biological mineralization), the aim was to test their osteoinductive behavior due to co-operation of inorganic and biological mineralization on mesenchymal stem cells KUSA A1. The functionalized surfaces were characterized by using the Folin⁻Ciocalteu method and X-ray photoelectron spectroscopy to confirm the successful outcome of the functionalization process. Two cell cultures of mesenchymal stem cells, KUSA A1 were performed, with or without osteoinductive factors. The cells and surfaces were characterized for monitoring cell viability and hydroxyapatite production: Fourier Transform Infrared Spectroscopy and Raman spectroscopy analyses showed deposition of hydroxyapatite and collagen due to the cell activity, highlighting differentiation of KUSA A1 into osteoblasts. A higher production of extracellular matrix was highlighted on the functionalized samples by laser microscope and the fluorescence images showed higher viability of cells and greater presence of osteocalcin in these samples. These results highlight the ability of polyphenols to improve cell differentiation and to stimulate biological mineralization, showing that surface functionalization of metal implants could be a promising way to improve osteointegrability.
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Affiliation(s)
- Martina Cazzola
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Sara Ferraris
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Francesco Boschetto
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8126, Japan.
- Department of immunology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan.
| | - Alfredo Rondinella
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8126, Japan.
| | - Elia Marin
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8126, Japan.
- Department of Dental Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan.
| | - Wenliang Zhu
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8126, Japan.
| | - Giuseppe Pezzotti
- Ceramic Physics Laboratory, Kyoto Institute of Technology, Sakyo-ku, Matsugasaki, Kyoto 606-8126, Japan.
- Department of Molecular Cell Physiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan.
- The Center for Advanced Medical Engineering and Informatics, Osaka University, Yamadaoka, Suita, Osaka 565-0871, Japan.
- Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
| | - Enrica Vernè
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.
| | - Silvia Spriano
- Department of Applied Science and Technology, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129 Torino, Italy.
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96
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Ma R, Li Y, Wu G, He Y, Feng J, Zhao Y, Li D. Fabrication of Pd-based metal-acid-alkali multifunctional catalysts for one-pot synthesis of MIBK. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63092-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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97
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Yazdani P, Wang B, Gao F, Kawi S, Borgna A. Role of the Strong Lewis Base Sites on Glucose Hydrogenolysis. ChemCatChem 2018. [DOI: 10.1002/cctc.201800427] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Parviz Yazdani
- Heterogeneous Catalysis Division; Institute of Chemical and Engineering Sciences; A*STAR 1 Pesek Rd. Singapore 627833 Singapore
- Department of Chemical and Biomolecular Engineering; National University of Singapore; Singapore 21 Lower Kent Ridge Rd. Singapore 119260 Singapore
| | - Bo Wang
- Heterogeneous Catalysis Division; Institute of Chemical and Engineering Sciences; A*STAR 1 Pesek Rd. Singapore 627833 Singapore
| | - Feng Gao
- Heterogeneous Catalysis Division; Institute of Chemical and Engineering Sciences; A*STAR 1 Pesek Rd. Singapore 627833 Singapore
| | - Sibudjing Kawi
- Department of Chemical and Biomolecular Engineering; National University of Singapore; Singapore 21 Lower Kent Ridge Rd. Singapore 119260 Singapore
| | - Armando Borgna
- Heterogeneous Catalysis Division; Institute of Chemical and Engineering Sciences; A*STAR 1 Pesek Rd. Singapore 627833 Singapore
- Department of Chemical and Biomolecular Engineering; National University of Singapore; Singapore 21 Lower Kent Ridge Rd. Singapore 119260 Singapore
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98
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Kiefer J, Bartels J, Kroll S, Rezwan K. Vibrational Spectroscopy as a Promising Toolbox for Analyzing Functionalized Ceramic Membranes. APPLIED SPECTROSCOPY 2018; 72:947-955. [PMID: 29667431 DOI: 10.1177/0003702818769479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ceramic materials find use in many fields including the life sciences and environmental engineering. For example, ceramic membranes have shown to be promising filters for water treatment and virus retention. The analysis of such materials, however, remains challenging. In the present study, the potential of three vibrational spectroscopic methods for characterizing functionalized ceramic membranes for water treatment is evaluated. For this purpose, Raman scattering, infrared (IR) absorption, and solvent infrared spectroscopy (SIRS) were employed. The data were analyzed with respect to spectral changes as well as using principal component analysis (PCA). The Raman spectra allow an unambiguous discrimination of the sample types. The IR spectra do not change systematically with functionalization state of the material. Solvent infrared spectroscopy allows a systematic distinction and enables studying the molecular interactions between the membrane surface and the solvent.
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Affiliation(s)
- Johannes Kiefer
- 1 Technische Thermodynamik, University of Bremen, Bremen, Germany
- 2 Center for Materials and Processes (MAPEX), University of Bremen, Bremen, Germany
- 3 School of Engineering, University of Aberdeen, Aberdeen, UK
| | - Julia Bartels
- 4 Advanced Ceramics, University of Bremen, Bremen, Germany
| | - Stephen Kroll
- 2 Center for Materials and Processes (MAPEX), University of Bremen, Bremen, Germany
- 5 IfBB-Institute for Bioplastics and Biocomposites, Hochschule Hannover- University of Applied Sciences and Arts, Hannover, Germany
| | - Kurosch Rezwan
- 2 Center for Materials and Processes (MAPEX), University of Bremen, Bremen, Germany
- 4 Advanced Ceramics, University of Bremen, Bremen, Germany
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99
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One-Pot Synthesis of N,N′-dialkylureas via Carbonylation of Amines with CO2 Applying Y0.08Zr0.92O1.96 Mixed Oxide (YSZ-8) as a Heterogeneous Catalyst. Catalysts 2018. [DOI: 10.3390/catal8050188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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100
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Kawaguchi Y, Akatsuka M, Yamamoto M, Yoshioka K, Ozawa A, Kato Y, Yoshida T. Preparation of gallium oxide photocatalysts and their silver loading effects on the carbon dioxide reduction with water. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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