1
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Ramadhan ZR, Poerwoprajitno AR, Cheong S, Webster RF, Kumar PV, Cychy S, Gloag L, Benedetti TM, Marjo CE, Muhler M, Wang DW, Gooding JJ, Schuhmann W, Tilley RD. Introducing Stacking Faults into Three-Dimensional Branched Nickel Nanoparticles for Improved Catalytic Activity. J Am Chem Soc 2022; 144:11094-11098. [PMID: 35713612 DOI: 10.1021/jacs.2c04911] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Creating high surface area nanocatalysts that contain stacking faults is a promising strategy to improve catalytic activity. Stacking faults can tune the reactivity of the active sites, leading to improved catalytic performance. The formation of branched metal nanoparticles with control of the stacking fault density is synthetically challenging. In this work, we demonstrate that varying the branch width by altering the size of the seed that the branch grows off is an effective method to precisely tune the stacking fault density in branched Ni nanoparticles. A high density of stacking faults across the Ni branches was found to lower the energy barrier for Ni2+/Ni3+ oxidation and result in enhanced activity for electrocatalytic oxidation of 5-hydroxylmethylfurfural. These results show the ability to synthetically control the stacking fault density in branched nanoparticles as a basis for enhanced catalytic activity.
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Affiliation(s)
- Zeno R Ramadhan
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia
| | | | - Soshan Cheong
- Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Richard F Webster
- Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Priyank V Kumar
- School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Steffen Cychy
- Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
| | - Lucy Gloag
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Tania M Benedetti
- School of Environment and Science and Queensland Micro and Nanotechnology Centre, Griffith University, Brisbane, Queensland 4222, Australia
| | - Christopher E Marjo
- Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Martin Muhler
- Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
| | - Da-Wei Wang
- School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - J Justin Gooding
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.,Australian Centre for NanoMedicine, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
| | - Richard D Tilley
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia.,Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052, Australia.,Australian Centre for NanoMedicine, The University of New South Wales, Sydney, NSW 2052, Australia
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2
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Braun M, Behrendt G, Krebs ML, Dimitri P, Kumar P, Sanjuán I, Cychy S, Brix AC, Morales DM, Hörlöck J, Hartke B, Muhler M, Schuhmann W, Behrens M, Andronescu C. Electrooxidation of Alcohols on Mixed Copper‐Cobalt Hydroxycarbonates in Alkaline Solution. ChemElectroChem 2022. [DOI: 10.1002/celc.202200267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Braun
- Universitat Duisburg-Essen Fakultat fur Chemie Chemical Technology III GERMANY
| | - Gereon Behrendt
- Universitat Duisburg-Essen Fakultat fur Chemie Institute of Inorganic Chemistry GERMANY
| | - Moritz L. Krebs
- Kiel University: Christian-Albrechts-Universitat zu Kiel Institute of Inorganic Chemistry GERMANY
| | - Patricia Dimitri
- Universitat Duisburg-Essen Fakultat fur Chemie Institute of Inorganic Chemistry GERMANY
| | - Piyush Kumar
- Universitat Duisburg-Essen Fakultat fur Chemie Chemical Technology III GERMANY
| | - Ignacio Sanjuán
- University of Duisburg-Essen Faculty of Chemistry: Universitat Duisburg-Essen Fakultat fur Chemie Chemical Technology III GERMANY
| | - Steffen Cychy
- Ruhr Universität Bochum Fakultät für Chemie und Biochemie: Ruhr Universitat Bochum Fakultat fur Chemie und Biochemie Laboratory of Industrial Chemistry GERMANY
| | - Ann Cathrin Brix
- Ruhr Universität Bochum Fakultät für Chemie und Biochemie: Ruhr Universitat Bochum Fakultat fur Chemie und Biochemie Analytical Chemistry, Center for Electrochemical Sciences (CES) GERMANY
| | - Dulce M. Morales
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH: Helmholtz-Zentrum Berlin fur Materialien und Energie GmbH Nachwuchsgruppe „Gestaltung des Sauerstoffentwicklungsmechanismus GERMANY
| | - Jennifer Hörlöck
- Christian-Albrechts-Universitat zu Kiel Theoretical Chemistry GERMANY
| | - Bernd Hartke
- University of Kiel: Christian-Albrechts-Universitat zu Kiel Theoretical Chemistry GERMANY
| | - Martin Muhler
- Ruhr Universität Bochum Fakultät für Chemie und Biochemie: Ruhr Universitat Bochum Fakultat fur Chemie und Biochemie Laboratory of Industrial Chemistry GERMANY
| | - Wolfgang Schuhmann
- Ruhr Universitat Bochum Fakultat fur Chemie und Biochemie Analytical Chemistry, Center for Electrochemical Sciences (CES) GERMANY
| | - Malte Behrens
- Universitat Kiel: Christian-Albrechts-Universitat zu Kiel Institute of Inorganic Chemistry GERMANY
| | - Corina Andronescu
- Universitat Duisburg-Essen Chemical Technology III Carl-Benz-Str. 199 D-47057 Duisburg GERMANY
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3
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Cychy S, Lechler S, Muhler M. Selective Anodic Oxidation of Solketal as Acetal‐Protected Glycerol over Nickel Boride in Alkaline Media to Glyceric Acid. ChemElectroChem 2022. [DOI: 10.1002/celc.202200010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Steffen Cychy
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
| | - Sebastian Lechler
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
| | - Martin Muhler
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
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4
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Cychy S, Lechler S, Muhler M. Selective Anodic Oxidation of Solketal as Acetal‐Protected Glycerol over Nickel Boride in Alkaline Media to Glyceric Acid**. ChemElectroChem 2021. [DOI: 10.1002/celc.202101214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Steffen Cychy
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
| | - Sebastian Lechler
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
| | - Martin Muhler
- Laboratory of Industrial Chemistry Ruhr University Bochum Universitätsstr. 150 44801 Bochum
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5
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Brix AC, Morales DM, Braun M, Jambrec D, Junqueira JRC, Cychy S, Seisel S, Masa J, Muhler M, Andronescu C, Schuhmann W. Electrocatalytic Oxidation of Glycerol Using Solid‐State Synthesised Nickel Boride: Impact of Key Electrolysis Parameters on Product Selectivity. ChemElectroChem 2021. [DOI: 10.1002/celc.202100739] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ann Cathrin Brix
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany
| | - Dulce M. Morales
- Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus Helmholtz-Zentrum Berlin für Materialien und Energie GmbH Hahn-Meintner-Platz 1 14109 Berlin Germany
| | - Michael Braun
- Technical Chemistry III and CENIDE Center for Nanointegration, Faculty of Chemistry University of Duisburg-Essen Carl-Benz-Straße 199 47057 Duisburg Germany
| | - Daliborka Jambrec
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany
| | - João R. C. Junqueira
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany
| | - Steffen Cychy
- Laboratory of Industrial Chemistry Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Sabine Seisel
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany
| | - Justus Masa
- Max-Planck-Institute for Chemical Energy Conversion (MPI-CEC) Stiftstraße 34–36 45470 Mülheim an der Ruhr Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Corina Andronescu
- Technical Chemistry III and CENIDE Center for Nanointegration, Faculty of Chemistry University of Duisburg-Essen Carl-Benz-Straße 199 47057 Duisburg Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany
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6
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Sikdar N, Schwiderowski P, Medina D, Dieckhöfer S, Quast T, Brix AC, Cychy S, Muhler M, Masa J, Schuhmann W. Trace Metal Loading of B‐N‐Co‐doped Graphitic Carbon for Active and Stable Bifunctional Oxygen Reduction and Oxygen Evolution Electrocatalysts. ChemElectroChem 2021. [DOI: 10.1002/celc.202100374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nivedita Sikdar
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Philipp Schwiderowski
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Danea Medina
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Stefan Dieckhöfer
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Thomas Quast
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Ann Cathrin Brix
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Steffen Cychy
- Laboratory of Industrial Chemistry Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
| | - Justus Masa
- Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
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7
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Poerwoprajitno AR, Gloag L, Watt J, Cychy S, Cheong S, Kumar PV, Benedetti TM, Deng C, Wu K, Marjo CE, Huber DL, Muhler M, Gooding JJ, Schuhmann W, Wang D, Tilley RD. Faceted Branched Nickel Nanoparticles with Tunable Branch Length for High-Activity Electrocatalytic Oxidation of Biomass. Angew Chem Int Ed Engl 2020; 59:15487-15491. [PMID: 32449976 PMCID: PMC7497201 DOI: 10.1002/anie.202005489] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/20/2020] [Indexed: 01/08/2023]
Abstract
Controlling the formation of nanosized branched nanoparticles with high uniformity is one of the major challenges in synthesizing nanocatalysts with improved activity and stability. Using a cubic-core hexagonal-branch mechanism to form highly monodisperse branched nanoparticles, we vary the length of the nickel branches. Lengthening the nickel branches, with their high coverage of active facets, is shown to improve activity for electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF), as an example for biomass conversion.
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Affiliation(s)
| | - Lucy Gloag
- School of ChemistryThe University of New South WalesSydneyNSW2052Australia
| | - John Watt
- Center for Integrated NanotechnologiesLos Alamos National LaboratoryLos AlamosNM87545USA
| | - Steffen Cychy
- Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Soshan Cheong
- Mark Wainwright Analytical CentreThe University of New South WalesSydneyNSW2052Australia
| | - Priyank V. Kumar
- School of Chemical EngineeringThe University of New South WalesSydneyNSW2052Australia
| | - Tania M. Benedetti
- School of ChemistryThe University of New South WalesSydneyNSW2052Australia
| | - Chen Deng
- School of Chemical EngineeringThe University of New South WalesSydneyNSW2052Australia
| | - Kuang‐Hsu Wu
- School of Chemical EngineeringThe University of New South WalesSydneyNSW2052Australia
| | - Christopher E. Marjo
- Mark Wainwright Analytical CentreThe University of New South WalesSydneyNSW2052Australia
| | - Dale L. Huber
- Center for Integrated NanotechnologiesSandia National LaboratoriesAlbuquerqueNM87185USA
| | - Martin Muhler
- Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - J. Justin Gooding
- School of ChemistryThe University of New South WalesSydneyNSW2052Australia
- Australian Centre for NanoMedicineThe University of New South WalesSydneyNSW2052Australia
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University BochumUniversitätsstr. 15044780BochumGermany
| | - Da‐Wei Wang
- School of Chemical EngineeringThe University of New South WalesSydneyNSW2052Australia
| | - Richard D. Tilley
- School of ChemistryThe University of New South WalesSydneyNSW2052Australia
- Mark Wainwright Analytical CentreThe University of New South WalesSydneyNSW2052Australia
- Australian Centre for NanoMedicineThe University of New South WalesSydneyNSW2052Australia
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8
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Poerwoprajitno AR, Gloag L, Watt J, Cychy S, Cheong S, Kumar PV, Benedetti TM, Deng C, Wu K, Marjo CE, Huber DL, Muhler M, Gooding JJ, Schuhmann W, Wang D, Tilley RD. Facettierte verzweigte Nickel‐Nanopartikel mit variierbarer Verzweigungslänge für die hochaktive elektrokatalytische Oxidation von Biomasse. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005489] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Lucy Gloag
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australien
| | - John Watt
- Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Steffen Cychy
- Lehrstuhl für Technische Chemie, Fakultät für Chemie und Biochemie Ruhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Soshan Cheong
- Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australien
| | - Priyank V. Kumar
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australien
| | - Tania M. Benedetti
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australien
| | - Chen Deng
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australien
| | - Kuang‐Hsu Wu
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australien
| | - Christopher E. Marjo
- Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australien
| | - Dale L. Huber
- Center for Integrated Nanotechnologies Sandia National Laboratories Albuquerque NM 87185 USA
| | - Martin Muhler
- Lehrstuhl für Technische Chemie, Fakultät für Chemie und Biochemie Ruhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - J. Justin Gooding
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australien
- Australian Centre for NanoMedicine The University of New South Wales Sydney NSW 2052 Australien
| | - Wolfgang Schuhmann
- Analytische Chemie – Zentrum für Elektrochemie (CES) Fakultät für Chemie und Biochemie Ruhr-Universität Bochum Universitätsstraße 150 44780 Bochum Deutschland
| | - Da‐Wei Wang
- School of Chemical Engineering The University of New South Wales Sydney NSW 2052 Australien
| | - Richard D. Tilley
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australien
- Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australien
- Australian Centre for NanoMedicine The University of New South Wales Sydney NSW 2052 Australien
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9
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Tarnev T, Cychy S, Andronescu C, Muhler M, Schuhmann W, Chen Y. A Universal Nano-capillary Based Method of Catalyst Immobilization for Liquid-Cell Transmission Electron Microscopy. Angew Chem Int Ed Engl 2020; 59:5586-5590. [PMID: 31960548 PMCID: PMC7155139 DOI: 10.1002/anie.201916419] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Indexed: 11/09/2022]
Abstract
A universal nano-capillary based method for sample deposition on the silicon nitride membrane of liquid-cell transmission electron microscopy (LCTEM) chips is demonstrated. It is applicable to all substances which can be dispersed in a solvent and are suitable for drop casting, including catalysts, biological samples, and polymers. Most importantly, this method overcomes limitations concerning sample immobilization due to the fragility of the ultra-thin silicon nitride membrane required for electron transmission. Thus, a straightforward way is presented to widen the research area of LCTEM to encompass any sample which can be externally deposited beforehand. Using this method, Nix B nanoparticles are deposited on the μm-scale working electrode of the LCTEM chip and in situ observation of single catalyst particles during ethanol oxidation is for the first time successfully monitored by means of TEM movies.
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Affiliation(s)
- Tsvetan Tarnev
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty for Chemistry and BiochemistryRuhr University Bochum44801BochumGermany
| | - Steffen Cychy
- Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University Bochum44801BochumGermany
| | - Corina Andronescu
- Chemical Technology IIIFaculty of Chemistry and CENIDECenter for NanointegrationUniversity Duisburg EssenCarl-Benz-Strasse 19947057DuisburgGermany
| | - Martin Muhler
- Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University Bochum44801BochumGermany
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES)Faculty for Chemistry and BiochemistryRuhr University Bochum44801BochumGermany
| | - Yen‐Ting Chen
- Center for Solvation Science (ZEMOS)Ruhr University Bochum44801BochumGermany
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10
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Tarnev T, Cychy S, Andronescu C, Muhler M, Schuhmann W, Chen Y. Eine universelle, auf Nanokapillaren basierende Methode zur Katalysatorimmobilisierung für die Flüssigzell‐Transmissionselektronenmikroskopie. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Tsvetan Tarnev
- Lehrstuhl für Analytische Chemie und Zentrum für Elektrochemie (CES) Fakultät für Chemie und Biochemie Ruhr-Universität Bochum 44801 Bochum Deutschland
| | - Steffen Cychy
- Technische Chemie Fakultät für Chemie und Biochemie Ruhr-Universität Bochum 44801 Bochum Deutschland
| | - Corina Andronescu
- Chemical Technology III Faculty of Chemistry and CENIDE Center for Nanointegration University Duisburg Essen Carl-Benz-Straße 199 47057 Duisburg Deutschland
| | - Martin Muhler
- Technische Chemie Fakultät für Chemie und Biochemie Ruhr-Universität Bochum 44801 Bochum Deutschland
| | - Wolfgang Schuhmann
- Lehrstuhl für Analytische Chemie und Zentrum für Elektrochemie (CES) Fakultät für Chemie und Biochemie Ruhr-Universität Bochum 44801 Bochum Deutschland
| | - Yen‐Ting Chen
- Zentrum für molekulare Spektroskopie und Simulation solvensgesteuerter Prozesse (ZEMOS) Ruhr-Universität Bochum 44801 Bochum Deutschland
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11
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Cychy S, Hiltrop D, Andronescu C, Muhler M, Schuhmann W. Operando Thin-Layer ATR-FTIR Spectroelectrochemical Radial Flow Cell with Tilt Correction and Borehole Electrode. Anal Chem 2019; 91:14323-14331. [PMID: 31609106 DOI: 10.1021/acs.analchem.9b02734] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel spectroelectrochemical ATR-FTIR thin-film cell was designed and applied to elucidate the intermediates during electrocatalytic alcohol oxidation. In the novel cell design, the working electrode is positioned coplanar above the internal reflection element (IRE) to ensure uniform electrolyte film thickness at reaction conditions. The depletion of the reactant (i.e., ethanol or ethylene glycol in the case of electrocatalytic alcohol oxidation) is decreased by a specifically designed flow-through glassy carbon borehole electrode embedded in PEEK. The electrolyte can be pumped through the disk-shaped gap between the ring working electrode and the IRE into the borehole via an external peristaltic pump. To ensure a radially uniform electrolyte flow, the working electrode and the internal reflection element need to be aligned in parallel at a well-controlled distance, which was achieved by a three-microelectrode-assisted tilt correction. Tilt correction of this four-electrode ensemble and the IRE was performed by three step-motor-driven micrometer screws that allow adjustment of the electrode orientation. The effect of electrolyte pumping through the borehole electrode was analyzed by performing anodic ethanol oxidation using nickel boride as electrocatalyst. The applicability, reliability, and functionality of the cell was further assessed by oxidizing ethylene glycol and determining the reaction products as a function of the electrolyte flow rate. It is found to be essential to induce forced electrolyte convection into the thin electrolyte layer to achieve well-defined steady-state conditions, as mass transport by diffusion is by far insufficient, resulting in reactant depletion, product accumulation, and local pH changes.
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Affiliation(s)
- Steffen Cychy
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitätsstr. 150 , D-44780 Bochum , Germany
| | - Dennis Hiltrop
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitätsstr. 150 , D-44780 Bochum , Germany
| | - Corina Andronescu
- Chemical Technology III and CENIDE Center for Nanointegration , University Duisburg Essen , Carl-Benz-Str. 199 , D-47057 Duisburg , Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitätsstr. 150 , D-44780 Bochum , Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry , Ruhr University Bochum , Universitätsstr. 150 , D-44780 Bochum , Germany
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12
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Alkan B, Cychy S, Varhade S, Muhler M, Schulz C, Schuhmann W, Wiggers H, Andronescu C. Spray‐Flame‐Synthesized LaCo
1−
x
Fe
x
O
3
Perovskite Nanoparticles as Electrocatalysts for Water and Ethanol Oxidation. ChemElectroChem 2019. [DOI: 10.1002/celc.201900168] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Baris Alkan
- IVG, Institute for Combustion and Gas Dynamics -Reactive Fluids and CENIDE, Center for NanointegrationUniversity of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Steffen Cychy
- Laboratory of Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Swapnil Varhade
- Analytical ChemistryCenter of Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Martin Muhler
- Laboratory of Industrial ChemistryFaculty of Chemistry and BiochemistryRuhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Christof Schulz
- IVG, Institute for Combustion and Gas Dynamics -Reactive Fluids and CENIDE, Center for NanointegrationUniversity of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Wolfgang Schuhmann
- Analytical ChemistryCenter of Electrochemical Sciences (CES)Faculty of Chemistry and BiochemistryRuhr University Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Hartmut Wiggers
- IVG, Institute for Combustion and Gas Dynamics -Reactive Fluids and CENIDE, Center for NanointegrationUniversity of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
| | - Corina Andronescu
- Chemical Technology IIIFaculty of Chemistry and CENIDE Center for Nanointegration University of Duisburg-Essen Carl-Benz-Str. 199 47057 Duisburg Germany
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Barwe S, Weidner J, Cychy S, Morales DM, Dieckhöfer S, Hiltrop D, Masa J, Muhler M, Schuhmann W. Elektrokatalytische Oxidation von 5-(Hydroxymethyl)furfural an Nickelborid mit großer Oberfläche. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806298] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stefan Barwe
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Jonas Weidner
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Steffen Cychy
- Lehrstuhl für Technische Chemie, Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Dulce M. Morales
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Stefan Dieckhöfer
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Dennis Hiltrop
- Lehrstuhl für Technische Chemie, Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Justus Masa
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Martin Muhler
- Lehrstuhl für Technische Chemie, Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
| | - Wolfgang Schuhmann
- Analytische Chemie, Zentrum für Elektrochemie (CES); Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Deutschland
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Barwe S, Weidner J, Cychy S, Morales DM, Dieckhöfer S, Hiltrop D, Masa J, Muhler M, Schuhmann W. Electrocatalytic Oxidation of 5-(Hydroxymethyl)furfural Using High-Surface-Area Nickel Boride. Angew Chem Int Ed Engl 2018; 57:11460-11464. [DOI: 10.1002/anie.201806298] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/05/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Stefan Barwe
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Jonas Weidner
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Steffen Cychy
- Laboratory of Industrial Chemistry; Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Dulce M. Morales
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Stefan Dieckhöfer
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Dennis Hiltrop
- Laboratory of Industrial Chemistry; Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Justus Masa
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry; Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Sciences (CES); Faculty of Chemistry and Biochemistry; Ruhr-Universität Bochum; Universitätsstraße 150 44780 Bochum Germany
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Hiltrop D, Cychy S, Elumeeva K, Schuhmann W, Muhler M. Spectroelectrochemical studies on the effect of cations in the alkaline glycerol oxidation reaction over carbon nanotube-supported Pd nanoparticles. Beilstein J Org Chem 2018; 14:1428-1435. [PMID: 29977406 PMCID: PMC6009201 DOI: 10.3762/bjoc.14.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/24/2018] [Indexed: 01/23/2023] Open
Abstract
The effects of the alkali cations Na+ and K+ were investigated in the alkaline electrochemical oxidation of glycerol over Pd nanoparticles (NPs) deposited on functionalized carbon nanotubes (CNTs). The electrocatalytic activity was assessed by cyclic voltammetry revealing a lower overpotential of glycerol oxidation for nitrogen-functionalized Pd/NCNTs compared with oxygen-functionalized Pd/OCNTs. Whereas significantly lower current densities were observed for Pd/OCNT in NaOH than in KOH in agreement with stronger non-covalent interactions on the Pd surface, Pd/NCNT achieved an approximately three-times higher current density in NaOH than in KOH. In situ electrochemistry/IR spectroscopy was applied to unravel the product distribution as a function of the applied potential in NaOH and KOH. The IR spectra exhibited strongly changing band patterns upon varying the potential between 0.77 and 1.17 V vs RHE: at low potentials oxidized C3 species such as mesoxalate and tartronate were formed predominantly, and with increasing potentials C2 and C1 species originating from C–C bond cleavage were identified. The tendency to produce carbonate was found to be less pronounced in KOH. The less favored formation of highly oxidized C3 species and of carbonate is deduced to be the origin of the lower current densities in the cyclic voltammograms (CVs) for Pd/NCNT in KOH. The enhanced current densities in NaOH are rationalized by the presence of Na+ ions bound to the basic nitrogen species in the NCNT support. Adsorbed Na+ ions can form complexes with the organic molecules, presumably enhanced by the chelate effect. In this way, the organic molecules are assumed to be bound more tightly to the NCNT support in close proximity to the Pd NPs facilitating their oxidation.
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Affiliation(s)
- Dennis Hiltrop
- Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - Steffen Cychy
- Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - Karina Elumeeva
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry - Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44780 Bochum, Germany
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