1
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Mathiesen JK, Quinson J, Blaseio S, Kjær ETS, Dworzak A, Cooper SR, Pedersen JK, Wang B, Bizzotto F, Schröder J, Kinnibrugh TL, Simonsen SB, Theil Kuhn L, Kirkensgaard JJK, Rossmeisl J, Oezaslan M, Arenz M, Jensen KMØ. Chemical Insights into the Formation of Colloidal Iridium Nanoparticles from In Situ X-ray Total Scattering: Influence of Precursors and Cations on the Reaction Pathway. J Am Chem Soc 2023; 145:1769-1782. [PMID: 36631996 DOI: 10.1021/jacs.2c10814] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Iridium nanoparticles are important catalysts for several chemical and energy conversion reactions. Studies of iridium nanoparticles have also been a key for the development of kinetic models of nanomaterial formation. However, compared to other metals such as gold or platinum, knowledge on the nature of prenucleation species and structural insights into the resultant nanoparticles are missing, especially for nanoparticles obtained from IrxCly precursors investigated here. We use in situ X-ray total scattering (TS) experiments with pair distribution function (PDF) analysis to study a simple, surfactant-free synthesis of colloidal iridium nanoparticles. The reaction is performed in methanol at 50 °C with only a base and an iridium salt as precursor. From different precursor salts─IrCl3, IrCl4, H2IrCl6, or Na2IrCl6─colloidal nanoparticles as small as Ir∼55 are obtained as the final product. The nanoparticles do not show the bulk iridium face-centered cubic (fcc) structure but show decahedral and icosahedral structures. The formation route is highly dependent on the precursor salt used. Using IrCl3 or IrCl4, metallic iridium nanoparticles form rapidly from IrxClyn- complexes, whereas using H2IrCl6 or Na2IrCl6, the iridium nanoparticle formation follows a sudden growth after an induction period and the brief appearance of a crystalline phase. With H2IrCl6, the formation of different Irn (n = 55, 55, 85, and 116) nanoparticles depends on the nature of the cation in the base (LiOH, NaOH, KOH, or CsOH, respectively) and larger particles are obtained with larger cations. As the particles grow, the nanoparticle structure changes from partly icosahedral to decahedral. The results show that the synthesis of iridium nanoparticles from IrxCly is a valuable iridium nanoparticle model system, which can provide new compositional and structural insights into iridium nanoparticle formation and growth.
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Affiliation(s)
- Jette K Mathiesen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark.,Department of Physics, Technical University of Denmark, Fysikvej Bldg. 312, 2800Kgs. Lyngby, Denmark
| | - Jonathan Quinson
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark.,Department of Biochemical and Chemical Engineering, Aarhus University, Åbogade 40, 8200Aarhus N, Denmark
| | - Sonja Blaseio
- Institute of Technical Chemistry, Technische Universität Braunschweig, Franz-Liszt Str. 35a, 38106Braunschweig, Germany
| | - Emil T S Kjær
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Alexandra Dworzak
- Institute of Technical Chemistry, Technische Universität Braunschweig, Franz-Liszt Str. 35a, 38106Braunschweig, Germany
| | - Susan R Cooper
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Jack K Pedersen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Baiyu Wang
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Francesco Bizzotto
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012Bern, Switzerland
| | - Johanna Schröder
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012Bern, Switzerland
| | - Tiffany L Kinnibrugh
- X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, 9700 S. Cass Avenue, Lemont, Illinois60439, United States
| | - Søren B Simonsen
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej Bldg. 310, 2800Kgs. Lyngby, Denmark
| | - Luise Theil Kuhn
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej Bldg. 310, 2800Kgs. Lyngby, Denmark
| | - Jacob J K Kirkensgaard
- Department of Food Science, University of Copenhagen, Rolighedsvej 26, 1958Frederiksberg C, Denmark.,Niels-Bohr-Institute, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
| | - Mehtap Oezaslan
- Institute of Technical Chemistry, Technische Universität Braunschweig, Franz-Liszt Str. 35a, 38106Braunschweig, Germany
| | - Matthias Arenz
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, CH-3012Bern, Switzerland
| | - Kirsten M Ø Jensen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100Copenhagen Ø, Denmark
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2
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Bizzotto F, Quinson J, Schröder J, Zana A, Arenz M. Surfactant-free colloidal strategies for highly dispersed and active supported IrO2 catalysts: Synthesis and performance evaluation for the oxygen evolution reaction. J Catal 2021. [DOI: 10.1016/j.jcat.2021.07.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Inaba M, Zana A, Quinson J, Bizzotto F, Dosche C, Dworzak A, Oezaslan M, Simonsen SB, Kuhn LT, Arenz M. The Oxygen Reduction Reaction on Pt: Why Particle Size and Interparticle Distance Matter. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00652] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masanori Inaba
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Alessandro Zana
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Jonathan Quinson
- Nano-Science Center, Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen Ø, Denmark
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Carsten Dosche
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
| | - Alexandra Dworzak
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
- Technical Electrocatalysis Laboratory, Institute of Technical Chemistry, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - Mehtap Oezaslan
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, D-26111 Oldenburg, Germany
- Technical Electrocatalysis Laboratory, Institute of Technical Chemistry, Technische Universität Braunschweig, D-38106 Braunschweig, Germany
| | - Søren Bredmose Simonsen
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej building 310, 2800 Kgs. Lyngby, Denmark
| | - Luise Theil Kuhn
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej building 310, 2800 Kgs. Lyngby, Denmark
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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4
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Schröder J, Mints VA, Bornet A, Berner E, Fathi Tovini M, Quinson J, Wiberg GKH, Bizzotto F, El-Sayed HA, Arenz M. The Gas Diffusion Electrode Setup as Straightforward Testing Device for Proton Exchange Membrane Water Electrolyzer Catalysts. JACS Au 2021; 1:247-251. [PMID: 34467289 PMCID: PMC8395656 DOI: 10.1021/jacsau.1c00015] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Hydrogen production from renewable resources and its reconversion into electricity are two important pillars toward a more sustainable energy use. The efficiency and viability of these technologies heavily rely on active and stable electrocatalysts. Basic research to develop superior electrocatalysts is commonly performed in conventional electrochemical setups such as a rotating disk electrode (RDE) configuration or H-type electrochemical cells. These experiments are easy to set up; however, there is a large gap to real electrochemical conversion devices such as fuel cells or electrolyzers. To close this gap, gas diffusion electrode (GDE) setups were recently presented as a straightforward technique for testing fuel cell catalysts under more realistic conditions. Here, we demonstrate for the first time a GDE setup for measuring the oxygen evolution reaction (OER) of catalysts for proton exchange membrane water electrolyzers (PEMWEs). Using a commercially available benchmark IrO2 catalyst deposited on a carbon gas diffusion layer (GDL), it is shown that key parameters such as the OER mass activity, the activation energy, and even reasonable estimates of the exchange current density can be extracted in a realistic range of catalyst loadings for PEMWEs. It is furthermore shown that the carbon-based GDL is not only suitable for activity determination but also short-term stability testing. Alternatively, the GDL can be replaced by Ti-based porous transport layers (PTLs) typically used in commercial PEMWEs. Here a simple preparation is shown involving the hot-pressing of a Nafion membrane onto a drop-cast glycerol-based ink on a Ti-PTL.
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Affiliation(s)
- Johanna Schröder
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Vladislav A. Mints
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Aline Bornet
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Etienne Berner
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Mohammad Fathi Tovini
- Chair
of Technical Electrochemistry, Department of Chemistry and Catalysis
Research Center, Technical University Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Jonathan Quinson
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Gustav K. H. Wiberg
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Francesco Bizzotto
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Hany A. El-Sayed
- Chair
of Technical Electrochemistry, Department of Chemistry and Catalysis
Research Center, Technical University Munich, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Matthias Arenz
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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5
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Sievers GW, Jensen AW, Quinson J, Zana A, Bizzotto F, Oezaslan M, Dworzak A, Kirkensgaard JJK, Smitshuysen TEL, Kadkhodazadeh S, Juelsholt M, Jensen KMØ, Anklam K, Wan H, Schäfer J, Čépe K, Escudero-Escribano M, Rossmeisl J, Quade A, Brüser V, Arenz M. Self-supported Pt-CoO networks combining high specific activity with high surface area for oxygen reduction. Nat Mater 2021; 20:208-213. [PMID: 32839587 DOI: 10.1038/s41563-020-0775-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/15/2020] [Indexed: 05/23/2023]
Abstract
Several concepts for platinum-based catalysts for the oxygen reduction reaction (ORR) are presented that exceed the US Department of Energy targets for Pt-related ORR mass activity. Most concepts achieve their high ORR activity by increasing the Pt specific activity at the expense of a lower electrochemically active surface area (ECSA). In the potential region controlled by kinetics, such a lower ECSA is counterbalanced by the high specific activity. At higher overpotentials, however, which are often applied in real systems, a low ECSA leads to limitations in the reaction rate not by kinetics, but by mass transport. Here we report on self-supported platinum-cobalt oxide networks that combine a high specific activity with a high ECSA. The high ECSA is achieved by a platinum-cobalt oxide bone nanostructure that exhibits unprecedentedly high mass activity for self-supported ORR catalysts. This concept promises a stable fuel-cell operation at high temperature, high current density and low humidification.
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Affiliation(s)
- Gustav W Sievers
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark.
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany.
| | - Anders W Jensen
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | - Jonathan Quinson
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | - Alessandro Zana
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland
| | - Mehtap Oezaslan
- Department of Chemistry, School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Technical Electrocatalysis Laboratory, Institute of Technical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Alexandra Dworzak
- Department of Chemistry, School of Mathematics and Science, Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Technical Electrocatalysis Laboratory, Institute of Technical Chemistry, Technische Universität Braunschweig, Braunschweig, Germany
| | - Jacob J K Kirkensgaard
- Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
- Department of Food Science, University of Copenhagen, Frederiksberg, Denmark
| | | | | | - Mikkel Juelsholt
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | | | - Kirsten Anklam
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Hao Wan
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | - Jan Schäfer
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Klára Čépe
- Regional Centre of Advanced Technologies and Materials, Olomouc, Czech Republic
| | | | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | - Antje Quade
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Volker Brüser
- Leibniz Institute for Plasma Science and Technology, Greifswald, Germany
| | - Matthias Arenz
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark.
- Department of Chemistry and Biochemistry, University of Bern, Bern, Switzerland.
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6
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Du J, Quinson J, Zhang D, Bizzotto F, Zana A, Arenz M. Bifunctional Pt-IrO 2 Catalysts for the Oxygen Evolution and Oxygen Reduction Reactions: Alloy Nanoparticles versus Nanocomposite Catalysts. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03867] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jia Du
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Jonathan Quinson
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, Copenhagen 2100, Denmark
| | - Damin Zhang
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Alessandro Zana
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland
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7
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Quinson J, Mathiesen JK, Schröder J, Dworzak A, Bizzotto F, Zana A, Simonsen SB, Theil Kuhn L, Oezaslan M, Jensen KMØ, Arenz M. Teaching old precursors new tricks: Fast room temperature synthesis of surfactant-free colloidal platinum nanoparticles. J Colloid Interface Sci 2020; 577:319-328. [PMID: 32497917 DOI: 10.1016/j.jcis.2020.05.078] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/14/2020] [Accepted: 05/19/2020] [Indexed: 10/24/2022]
Abstract
A fast, simple, instrument-free room temperature synthesis of stable electroactive surfactant-free colloidal Pt nanoparticles in alkaline methanol and methanol-water mixtures is presented. Pair distribution function (PDF) analysis suggests that methoxy substitution of chloride ligands from H2PtCl6 occurs in methanol. X-ray absorption spectroscopy (XAS) studies and UV-vis measurements show that solutions of H2PtCl6 in methanol age and are reduced to Pt(II) species over time. These species are ideal precursors to significantly reduce the induction period typically observed in colloidal Pt nanoparticle syntheses as well as the temperature needed to form nanoparticles. The room temperature synthesis presented here allows designing simple in situ studies of the nanoparticle formation. In situ infra-red spectroscopy gives insight into the formation and stabilization mechanism of surfactant-free nanoparticles by CO surface groups. Finally, the surfactant-free nanoparticles ca. 2-3 nm in diameter obtained are shown to be readily active electrocatalysts e.g. for methanol oxidation. The synthesis approach presented bears several advantages to design new studies and new syntheses of surfactant-free colloidal nanomaterials.
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Affiliation(s)
- J Quinson
- University of Copenhagen, Chemistry Department, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - J K Mathiesen
- University of Copenhagen, Chemistry Department, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - J Schröder
- University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3 CH-3012 Bern, Switzerland
| | - A Dworzak
- School of Mathematics and Science, Department of Chemistry, Carl von Ossietzky Universität Oldenburg, 26111 Oldenburg, Germany
| | - F Bizzotto
- University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3 CH-3012 Bern, Switzerland
| | - A Zana
- University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3 CH-3012 Bern, Switzerland
| | - S B Simonsen
- Technical, University of Denmark, Department of Energy Conversion and Storage, Fysikvej Bldg. 310, DK-2800 Kgs. Lyngby, Denmark
| | - L Theil Kuhn
- Technical, University of Denmark, Department of Energy Conversion and Storage, Fysikvej Bldg. 310, DK-2800 Kgs. Lyngby, Denmark
| | - M Oezaslan
- School of Mathematics and Science, Department of Chemistry, Carl von Ossietzky Universität Oldenburg, 26111 Oldenburg, Germany
| | - K M Ø Jensen
- University of Copenhagen, Chemistry Department, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - M Arenz
- University of Bern, Department of Chemistry and Biochemistry, Freiestrasse 3 CH-3012 Bern, Switzerland.
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8
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Delgado D, Bizzotto F, Zana A, Arenz M. Accelerated Durability Test for High-Surface-Area Oxyhydroxide Nickel Supported on Raney Nickel as Catalyst for the Alkaline Oxygen Evolution Reaction. Chemphyschem 2019; 20:3147-3153. [PMID: 31173447 DOI: 10.1002/cphc.201900195] [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] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/10/2019] [Indexed: 11/07/2022]
Abstract
We demonstrate a fit-for-purpose accelerated durability test (ADT) of a high-surface-area catalyst for the alkaline oxygen evolution reaction (OER). Using an automatized electrochemical setup enabled us to run a complex ADT protocol including online detection of the effective solution resistance as well as linear voltammetry, cyclic voltammetry, cyclic galvanograms, and electrochemical impedance spectroscopy (EIS) for 55 h in total. Using this protocol, we tested the service life stability of a nickel oxyhydroxide (NiOx) catalyst based on Raney Ni. The catalyst was prepared by growing nickel oxyhydroxide on high-surface-area Raney Ni and subsequent formation of the active phase. The successful synthesis of the active NiOx phase is supported by cyclic voltammetry and Raman spectroscopy. The as prepared and activated Raney NiOx exhibits an overpotential for the OER of 304 mV at 10 mA cm-2 with a Tafel slope of 53 mV dec-1 and roughness factors as high as 4515 determined by EIS during OER. By concentrating for the ADT protocol on current densities relevant for coupling water electrolysis to photovoltaics, it is demonstrated that Raney NiOx is a promising anode material candidate as it is earth abundant and its active phase exhibits high OER activity as well as stability.
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Affiliation(s)
- Dario Delgado
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Alessandro Zana
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012, Bern, Switzerland
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9
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Dutta A, Bizzotto F, Quinson J, Zana A, Morstein CE, Rahaman MA, López AC, Arenz M, Broekmann P. Catalyst Development for Water/CO₂ Co-electrolysis. Chimia (Aarau) 2019; 73:707-713. [PMID: 31514770 DOI: 10.2533/chimia.2019.707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Herein, we discuss recent research activities on the electrochemical water/CO₂ co-electrolysis at the Department of Chemistry and Biochemistry of the University of Bern (Arenz and Broekmann research groups). For the electrochemical conversion of the greenhouse gas CO₂ into products of higher value catalysts for two half-cell reactions need to be developed, i.e. catalysts for the reductive conversion of CO₂ (CO₂RR) as well as catalysts for the oxidative splitting of water (OER: Oxygen Evolution Reaction). In research, the catalysts are often investigated independently of each other as they can later easily be combined in a technical electrolysis cell. CO₂RR catalysts consist of abundant materials such as copper and silver and thus mainly the product selectivity of the respective catalyst is in focus of the investigation. In contrast to that, OER catalysts (in acidic conditions) mainly consist of precious metals, e.g. Ir, and therefore the minimization of the catalytic current per gram Ir is of fundamental importance.
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Affiliation(s)
- Abhijit Dutta
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern
| | - Jonathan Quinson
- Department of Chemistry, University of Copenhagen, Universitets parken 5, Copenhagen 2100 Denmark
| | - Alessandro Zana
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern
| | | | - Motiar A Rahaman
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern
| | - Alena Cedeño López
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern
| | - Matthias Arenz
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern;,
| | - Peter Broekmann
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern;,
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10
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Bizzotto F, Ouhbi H, Fu Y, Wiberg GKH, Aschauer U, Arenz M. Examining the Structure Sensitivity of the Oxygen Evolution Reaction on Pt Single‐Crystal Electrodes: A Combined Experimental and Theoretical Study. Chemphyschem 2019; 20:3154-3162. [DOI: 10.1002/cphc.201900193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/29/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Francesco Bizzotto
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Hassan Ouhbi
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Yongchun Fu
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
- present address: College of Chemistry and Chemical EngineeringHunan University 410082 Changsha China
| | - Gustav K. H. Wiberg
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
- present address: Department of Physical ScienceHarold Washington College, City colleges of Chicago 30 E Lake St Chicago IL 60601 USA
| | - Ulrich Aschauer
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
| | - Matthias Arenz
- Department of Chemistry and BiochemistryUniversity of Bern Freiestrasse 3 CH-3012 Bern Switzerland
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11
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Bizzotto F, Quinson J, Zana A, Kirkensgaard JJK, Dworzak A, Oezaslan M, Arenz M. Ir nanoparticles with ultrahigh dispersion as oxygen evolution reaction (OER) catalysts: synthesis and activity benchmarking. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01728c] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we present a facile and straightforward approach to synthesize, activate and benchmark small, i.e. 1.6 nm in diameter, Ir nanoparticles (NP) as oxygen evolution reaction (OER) catalysts.
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Affiliation(s)
- Francesco Bizzotto
- Department of Chemistry and Biochemistry
- University of Bern
- CH-3012 Bern
- Switzerland
| | - Jonathan Quinson
- Chemistry Department
- University of Copenhagen
- 2100 Copenhagen Ø
- Denmark
| | - Alessandro Zana
- Department of Chemistry and Biochemistry
- University of Bern
- CH-3012 Bern
- Switzerland
| | | | - Alexandra Dworzak
- School of Mathematics and Science
- Department of Chemistry
- Carl von Ossietzky Universität
- 26111 Oldenburg
- Germany
| | - Mehtap Oezaslan
- School of Mathematics and Science
- Department of Chemistry
- Carl von Ossietzky Universität
- 26111 Oldenburg
- Germany
| | - Matthias Arenz
- Department of Chemistry and Biochemistry
- University of Bern
- CH-3012 Bern
- Switzerland
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Quinson J, Neumann S, Wannmacher T, Kacenauskaite L, Inaba M, Bucher J, Bizzotto F, Simonsen SB, Theil Kuhn L, Bujak D, Zana A, Arenz M, Kunz S. Colloids for Catalysts: A Concept for the Preparation of Superior Catalysts of Industrial Relevance. Angew Chem Int Ed Engl 2018; 57:12338-12341. [PMID: 30051948 PMCID: PMC6175418 DOI: 10.1002/anie.201807450] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [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: 06/28/2018] [Indexed: 11/15/2022]
Abstract
Compared to conventional preparation methods for supported heterogeneous catalysts, the use of colloidal nanoparticles (NPs) allows for a precise control over size, size distribution, and distribution/location of the NPs on the support. However, common colloidal syntheses have restrictions that limit their applicability for industrial catalyst preparation. We present a simple, surfactant-free, and scalable preparation method for colloidal NPs to overcome these restrictions. We demonstrate how precious-metal NPs are prepared in alkaline methanol, how the particle size can be tuned, and how supported catalysts are obtained. The potential of these colloids in the preparation of improved catalysts is demonstrated by two examples from heterogeneous catalysis and electrocatalysis.
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Affiliation(s)
- Jonathan Quinson
- Nano-science center, UniversitetsparkenUniversity of Copenhagen, 52100Copenhagen ØDenmark
| | - Sara Neumann
- Institute of Applied and Physical ChemistryUniversity of BremenLeobenerstraße28359BremenGermany
| | - Tanja Wannmacher
- Institute of Applied and Physical ChemistryUniversity of BremenLeobenerstraße28359BremenGermany
| | - Laura Kacenauskaite
- Nano-science center, UniversitetsparkenUniversity of Copenhagen, 52100Copenhagen ØDenmark
| | - Masanori Inaba
- Nano-science center, UniversitetsparkenUniversity of Copenhagen, 52100Copenhagen ØDenmark
| | - Jan Bucher
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Francesco Bizzotto
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Søren B. Simonsen
- Department of Energy Conversion and StorageTechnical University of DenmarkFrederiksborgvej 3994000RoskildeDenmark
| | - Luise Theil Kuhn
- Department of Energy Conversion and StorageTechnical University of DenmarkFrederiksborgvej 3994000RoskildeDenmark
| | - Dajana Bujak
- Institute of Applied and Physical ChemistryUniversity of BremenLeobenerstraße28359BremenGermany
| | - Alessandro Zana
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Matthias Arenz
- Department of Chemistry and BiochemistryUniversity of BernFreiestrasse 3CH-3012BernSwitzerland
| | - Sebastian Kunz
- Institute of Applied and Physical ChemistryUniversity of BremenLeobenerstraße28359BremenGermany
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Quinson J, Neumann S, Wannmacher T, Kacenauskaite L, Inaba M, Bucher J, Bizzotto F, Simonsen SB, Theil Kuhn L, Bujak D, Zana A, Arenz M, Kunz S. Colloids for Catalysts: A Concept for the Preparation of Superior Catalysts of Industrial Relevance. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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)
- Jonathan Quinson
- Nano-science center, Universitetsparken; University of Copenhagen, 5; 2100 Copenhagen Ø Denmark
| | - Sara Neumann
- Institute of Applied and Physical Chemistry; University of Bremen; Leobenerstraße 28359 Bremen Germany
| | - Tanja Wannmacher
- Institute of Applied and Physical Chemistry; University of Bremen; Leobenerstraße 28359 Bremen Germany
| | - Laura Kacenauskaite
- Nano-science center, Universitetsparken; University of Copenhagen, 5; 2100 Copenhagen Ø Denmark
| | - Masanori Inaba
- Nano-science center, Universitetsparken; University of Copenhagen, 5; 2100 Copenhagen Ø Denmark
| | - Jan Bucher
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 CH-3012 Bern Switzerland
| | - Francesco Bizzotto
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 CH-3012 Bern Switzerland
| | - Søren B. Simonsen
- Department of Energy Conversion and Storage; Technical University of Denmark; Frederiksborgvej 399 4000 Roskilde Denmark
| | - Luise Theil Kuhn
- Department of Energy Conversion and Storage; Technical University of Denmark; Frederiksborgvej 399 4000 Roskilde Denmark
| | - Dajana Bujak
- Institute of Applied and Physical Chemistry; University of Bremen; Leobenerstraße 28359 Bremen Germany
| | - Alessandro Zana
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 CH-3012 Bern Switzerland
| | - Matthias Arenz
- Department of Chemistry and Biochemistry; University of Bern; Freiestrasse 3 CH-3012 Bern Switzerland
| | - Sebastian Kunz
- Institute of Applied and Physical Chemistry; University of Bremen; Leobenerstraße 28359 Bremen Germany
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