1
|
Pinheiro Araújo T, Giannakakis G, Morales-Vidal J, Agrachev M, Ruiz-Bernal Z, Preikschas P, Zou T, Krumeich F, Willi PO, Stark WJ, Grass RN, Jeschke G, Mitchell S, López N, Pérez-Ramírez J. Low-nuclearity CuZn ensembles on ZnZrO x catalyze methanol synthesis from CO 2. Nat Commun 2024; 15:3101. [PMID: 38600146 PMCID: PMC11006684 DOI: 10.1038/s41467-024-47447-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/23/2023] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Metal promotion could unlock high performance in zinc-zirconium catalysts, ZnZrOx, for CO2 hydrogenation to methanol. Still, with most efforts devoted to costly palladium, the optimal metal choice and necessary atomic-level architecture remain unclear. Herein, we investigate the promotion of ZnZrOx catalysts with small amounts (0.5 mol%) of diverse hydrogenation metals (Re, Co, Au, Ni, Rh, Ag, Ir, Ru, Pt, Pd, and Cu) prepared via a standardized flame spray pyrolysis approach. Cu emerges as the most effective promoter, doubling methanol productivity. Operando X-ray absorption, infrared, and electron paramagnetic resonance spectroscopic analyses and density functional theory simulations reveal that Cu0 species form Zn-rich low-nuclearity CuZn clusters on the ZrO2 surface during reaction, which correlates with the generation of oxygen vacancies in their vicinity. Mechanistic studies demonstrate that this catalytic ensemble promotes the rapid hydrogenation of intermediate formate into methanol while effectively suppressing CO production, showcasing the potential of low-nuclearity metal ensembles in CO2-based methanol synthesis.
Collapse
Affiliation(s)
- Thaylan Pinheiro Araújo
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Georgios Giannakakis
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Jordi Morales-Vidal
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Zaira Ruiz-Bernal
- Department of Inorganic Chemistry and Materials Institute (IUMA), Faculty of Sciences, University of Alicante, Ap. 99, E-03080, Alicante, Spain
| | - Phil Preikschas
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Tangsheng Zou
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Patrik O Willi
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Wendelin J Stark
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Robert N Grass
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Sharon Mitchell
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Javier Pérez-Ramírez
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland.
| |
Collapse
|
2
|
D'Andria M, Krumeich F, Yao Z, Wang FR, Güntner AT. Structure-Function Relationship of Highly Reactive CuO x Clusters on Co 3 O 4 for Selective Formaldehyde Sensing at Low Temperatures. Adv Sci (Weinh) 2024; 11:e2308224. [PMID: 38143268 PMCID: PMC10933674 DOI: 10.1002/advs.202308224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/08/2023] [Indexed: 12/26/2023]
Abstract
Designing reactive surface clusters at the nanoscale on metal-oxide supports enables selective molecular interactions in low-temperature catalysis and chemical sensing. Yet, finding effective material combinations and identifying the reactive site remains challenging and an obstacle for rational catalyst/sensor design. Here, the low-temperature oxidation of formaldehyde with CuOx clusters on Co3 O4 nanoparticles is demonstrated yielding an excellent sensor for this critical air pollutant. When fabricated by flame-aerosol technology, such CuOx clusters are finely dispersed, while some Cu ions are incorporated into the Co3 O4 lattice enhancing thermal stability. Importantly, infrared spectroscopy of adsorbed CO, near edge X-ray absorption fine structure spectroscopy and temperature-programmed reduction in H2 identified Cu+ and Cu2+ species in these clusters as active sites. Remarkably, the Cu+ surface concentration correlated with the apparent activation energy of formaldehyde oxidation (Spearman's coefficient ρ = 0.89) and sensor response (0.96), rendering it a performance descriptor. At optimal composition, such sensors detected even the lowest formaldehyde levels of 3 parts-per-billion (ppb) at 75°C, superior to state-of-the-art sensors. Also, selectivity to other aldehydes, ketones, alcohols, and inorganic compounds, robustness to humidity and stable performance over 4 weeks are achieved, rendering such sensors promising as gas detectors in health monitoring, air and food quality control.
Collapse
Affiliation(s)
- Matteo D'Andria
- Human‐centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied BiosciencesLaboratory of Inorganic Chemistry, ETH ZurichZurichCH‐8093Switzerland
| | - Zhangyi Yao
- Department of Chemical EngineeringUniversity College LondonLondonWC1E 7JEUK
| | - Feng Ryan Wang
- Department of Chemical EngineeringUniversity College LondonLondonWC1E 7JEUK
| | - Andreas T. Güntner
- Human‐centered Sensing Laboratory, Department of Mechanical and Process Engineering, ETH ZurichZurichCH‐8092Switzerland
| |
Collapse
|
3
|
Yang Q, Surin I, Geiger J, Eliasson H, Agrachev M, Kondratenko VA, Zanina A, Krumeich F, Jeschke G, Erni R, Kondratenko EV, López N, Pérez-Ramírez J. Lattice-Stabilized Chromium Atoms on Ceria for N 2O Synthesis. ACS Catal 2023; 13:15977-15990. [PMID: 38125976 PMCID: PMC10728900 DOI: 10.1021/acscatal.3c04463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/23/2023]
Abstract
The development of selective catalysts for direct conversion of ammonia into nitrous oxide, N2O, will circumvent the conventional five-step manufacturing process and enable its wider utilization in oxidation catalysis. Deviating from commonly accepted catalyst design principles for this reaction, reliant on manganese oxide, we herein report an efficient system comprised of isolated chromium atoms (1 wt %) stabilized in the ceria lattice by coprecipitation. The latter, in contrast to a simple impregnation approach, ensures firm metal anchoring and results in stable and selective N2O production over 100 h on stream up to 79% N2O selectivity at full NH3 conversion. Raman, electron paramagnetic resonance, and in situ UV-vis spectroscopies reveal that chromium incorporation enhances the density of oxygen vacancies and the rate of their generation and healing. Accordingly, temporal analysis of products, kinetic studies, and atomistic simulations show lattice oxygen of ceria to directly participate in the reaction, establishing the cocatalytic role of the carrier. Coupled with the dynamic restructuring of chromium sites to stabilize intermediates of N2O formation, these factors enable catalytic performance on par with or exceeding benchmark systems. These findings demonstrate how nanoscale engineering can elevate a previously overlooked metal into a highly competitive catalyst for selective ammonia oxidation to N2O, paving the way toward industrial implementation.
Collapse
Affiliation(s)
- Qingxin Yang
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Ivan Surin
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Julian Geiger
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Henrik Eliasson
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Mikhail Agrachev
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Vita A. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Anna Zanina
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Frank Krumeich
- Laboratory
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Gunnar Jeschke
- Laboratory
of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 2, 8093 Zürich, Switzerland
| | - Rolf Erni
- Electron
Microscopy Center, Empa - Swiss Federal
Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
| | - Evgenii V. Kondratenko
- Advanced
Methods for Applied Catalysis, Leibniz-Institut
für Katalyse e. V., Albert Einstein-Str. 29a, 18059 Rostock, Germany
| | - Núria López
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007 Tarragona, Spain
| | - Javier Pérez-Ramírez
- Institute
for Chemical and Bioengineering, Department of Chemistry and Applied
Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| |
Collapse
|
4
|
Giulimondi V, Ruiz-Ferrando A, Giannakakis G, Surin I, Agrachev M, Jeschke G, Krumeich F, López N, Clark AH, Pérez-Ramírez J. Evidence of bifunctionality of carbons and metal atoms in catalyzed acetylene hydrochlorination. Nat Commun 2023; 14:5557. [PMID: 37689779 PMCID: PMC10492806 DOI: 10.1038/s41467-023-41344-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 05/09/2023] [Accepted: 08/28/2023] [Indexed: 09/11/2023] Open
Abstract
Carbon supports are ubiquitous components of heterogeneous catalysts for acetylene hydrochlorination to vinyl chloride, from commercial mercury-based systems to more sustainable metal single-atom alternatives. Their potential co-catalytic role has long been postulated but never unequivocally demonstrated. Herein, we evidence the bifunctionality of carbons and metal sites in the acetylene hydrochlorination catalytic cycle. Combining operando X-ray absorption spectroscopy with other spectroscopic and kinetic analyses, we monitor the structure of single metal atoms (Pt, Au, Ru) and carbon supports (activated, non-activated, and nitrogen-doped) from catalyst synthesis, using various procedures, to operation at different conditions. Metal atoms exclusively activate hydrogen chloride, while metal-neighboring sites in the support bind acetylene. Resolving the coordination environment of working metal atoms guides theoretical simulations in proposing potential binding sites for acetylene in the support and a viable reaction profile. Expanding from single-atom to ensemble catalysis, these results reinforce the importance of optimizing both metal and support components to leverage the distinct functions of each for advancing catalyst design.
Collapse
Affiliation(s)
- Vera Giulimondi
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Andrea Ruiz-Ferrando
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007, Tarragona, Spain
- Department of Physical and Inorganic Chemistry, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007, Tarragona, Spain
| | - Georgios Giannakakis
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Ivan Surin
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ-CERCA), Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Adam H Clark
- Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zurich, Switzerland.
| |
Collapse
|
5
|
Baumgärtner JF, Wörle M, Guntlin CP, Krumeich F, Siegrist S, Vogt V, Stoian DC, Chernyshov D, van Beek W, Kravchyk KV, Kovalenko MV. Pyrochlore-Type Iron Hydroxy Fluorides as Low-Cost Lithium-Ion Cathode Materials for Stationary Energy Storage. Adv Mater 2023:e2304158. [PMID: 37522526 DOI: 10.1002/adma.202304158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/26/2023] [Indexed: 08/01/2023]
Abstract
Pyrochlore-type iron (III) hydroxy fluorides (Pyr-IHF) are appealing low-cost stationary energy storage materials due to the virtually unlimited supply of their constituent elements, their high energy densities, and fast Li-ion diffusion. However, the prohibitively high costs of synthesis and cathode architecture currently prevent their commercial use in low-cost Li-ion batteries. Herein, a facile and cost-effective dissolution-precipitation synthesis of Pyr-IHF from soluble iron (III) fluoride precursors is presented. High capacity retention by synthesized Pyr-IHF of >80% after 600 cycles at a high current density of 1 A g-1 is obtained, without elaborate electrode engineering. Operando synchrotron X-ray diffraction guides the selective synthesis of Pyr-IHF such that different water contents can be tested for their effect on the rate capability. Li-ion diffusion is found to occur in the 3D hexagonal channels of Pyr-IHF, formed by corner-sharing FeF6-x (OH)x octahedra.
Collapse
Affiliation(s)
- Julian Felix Baumgärtner
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science & Technology, Dübendorf, CH-8600, Switzerland
| | - Michael Wörle
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
| | - Christoph P Guntlin
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
| | - Sebastian Siegrist
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
| | - Valentina Vogt
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
| | - Dragos C Stoian
- Swiss-Norwegian BeamLines at the European Synchrotron Radiation Facility, Grenoble, 38000, France
| | - Dmitry Chernyshov
- Swiss-Norwegian BeamLines at the European Synchrotron Radiation Facility, Grenoble, 38000, France
| | - Wouter van Beek
- Swiss-Norwegian BeamLines at the European Synchrotron Radiation Facility, Grenoble, 38000, France
| | - Kostiantyn V Kravchyk
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science & Technology, Dübendorf, CH-8600, Switzerland
| | - Maksym V Kovalenko
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, CH-8093, Switzerland
- Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science & Technology, Dübendorf, CH-8600, Switzerland
| |
Collapse
|
6
|
Surin I, Tang Z, Geiger J, Damir S, Eliasson H, Agrachev M, Krumeich F, Mitchell S, Kondratenko VA, Kondratenko EV, Jeschke G, Erni R, López N, Pérez-Ramírez J. Low-Valent Manganese Atoms Stabilized on Ceria for Nitrous Oxide Synthesis. Adv Mater 2023:e2211260. [PMID: 36863934 DOI: 10.1002/adma.202211260] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/17/2023] [Indexed: 05/03/2023]
Abstract
Nitrous oxide, N2 O, exhibits unique reactivity in oxidation catalysis, but the high manufacturing costs limit its prospective uses. Direct oxidation of ammonia, NH3 , to N2 O can ameliorate this issue but its implementation is thwarted by suboptimal catalyst selectivity and stability, and the lack of established structure-performance relationships. Systematic and controlled material nanostructuring offers an innovative approach for advancement in catalyst design. Herein low-valent manganese atoms stabilized on ceria, CeO2 , are discovered as the first stable catalyst for NH3 oxidation to N2 O, exhibiting two-fold higher productivity than the state-of-the-art. Detailed mechanistic, computational and kinetic studies reveal CeO2 as the mediator of oxygen supply, while undercoordinated manganese species activate O2 and facilitate N2 O evolution via NN bond formation between nitroxyl, HNO, intermediates. Synthesis via simple impregnation of a small metal quantity (1 wt%) predominantly generates isolated manganese sites, while full atomic dispersion is achieved upon redispersion of sporadic oxide nanoparticles during reaction, as confirmed by advanced microscopic analysis and electron paramagnetic resonance spectroscopy. Subsequently, manganese speciation is maintained, and no deactivation is observed over 70 h on stream. CeO2 -supported isolated transition metals emerge as a novel class of materials for N2 O production, encouraging future studies to evaluate their potential in selective catalytic oxidations at large.
Collapse
Affiliation(s)
- Ivan Surin
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Zhenchen Tang
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Julian Geiger
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Suyash Damir
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Henrik Eliasson
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
| | - Mikhail Agrachev
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Vita A Kondratenko
- Department of Catalyst Discovery and Reaction Engineering, Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Evgenii V Kondratenko
- Department of Catalyst Discovery and Reaction Engineering, Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Gunnar Jeschke
- Laboratory of Physical Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf, 8600, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, Tarragona, 43007, Spain
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| |
Collapse
|
7
|
Sadykov II, Sushkevich VL, Krumeich F, Nuguid RJG, van Bokhoven JA, Nachtegaal M, Safonova OV. Platinum-Iron(II) Oxide Sites Directly Responsible for Preferential Carbon Monoxide Oxidation at Ambient Temperature: An Operando X-ray Absorption Spectroscopy Study. Angew Chem Int Ed Engl 2023; 62:e202214032. [PMID: 36349828 DOI: 10.1002/anie.202214032] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 09/22/2022] [Indexed: 11/11/2022]
Abstract
Operando X-ray absorption spectroscopy identified that the concentration of Fe2+ species in the working state-of-the-art Pt-FeOx catalysts quantitatively correlates to their preferential carbon monoxide oxidation steady-state reaction rate at ambient temperature. Deactivation of such catalysts with time on stream originates from irreversible oxidation of active Fe2+ sites. The active Fe2+ species are presumably Fe+2 O-2 clusters in contact with platinum nanoparticles; they coexist with spectator trivalent oxidic iron (Fe3+ ) and metallic iron (Fe0 ) partially alloyed with platinum. The concentration of active sites and, therefore, the catalyst activity strongly depends on the pretreatment conditions. Fe2+ is the resting state of the active sites in the preferential carbon monoxide oxidation cycle.
Collapse
Affiliation(s)
- Ilia I Sadykov
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland.,Institute for Chemical and Bioengineering, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093, Zürich, Switzerland
| | - Vitaly L Sushkevich
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093, Zürich, Switzerland
| | - Rob Jeremiah G Nuguid
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Jeroen A van Bokhoven
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland.,Institute for Chemical and Bioengineering, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093, Zürich, Switzerland
| | - Maarten Nachtegaal
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Olga V Safonova
- Energy and Environment Research Division, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| |
Collapse
|
8
|
Genz NS, Kallio A, Oord R, Krumeich F, Pokle A, Prytz Ø, Olsbye U, Meirer F, Huotari S, Weckhuysen BM. Operando Laboratory-Based Multi-Edge X-Ray Absorption Near-Edge Spectroscopy of Solid Catalysts. Angew Chem Int Ed Engl 2022; 61:e202209334. [PMID: 36205032 PMCID: PMC9828672 DOI: 10.1002/anie.202209334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Indexed: 11/19/2022]
Abstract
Laboratory-based X-ray absorption spectroscopy (XAS) and especially X-ray absorption near-edge structure (XANES) offers new opportunities in catalyst characterization and presents not only an alternative, but also a complementary approach to precious beamtime at synchrotron facilities. We successfully designed a laboratory-based setup for performing operando, quasi-simultaneous XANES analysis at multiple K-edges, more specifically, operando XANES of mono-, bi-, and trimetallic CO2 hydrogenation catalysts containing Ni, Fe, and Cu. Detailed operando XANES studies of the multielement solid catalysts revealed metal-dependent differences in the reducibility and re-oxidation behavior and their influence on the catalytic performance in CO2 hydrogenation. The applicability of operando laboratory-based XANES at multiple K-edges paves the way for advanced multielement catalyst characterization complementing detailed studies at synchrotron facilities.
Collapse
Affiliation(s)
- Nina S. Genz
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Antti‐Jussi Kallio
- Department of PhysicsUniversity of HelsinkiP. O. Box 6400014HelsinkiFinland
| | - Ramon Oord
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Frank Krumeich
- Laboratory of Inorganic ChemistryDepartment of ChemistryETH ZürichVladimir-Prelog-Weg 18093ZürichSwitzerland
| | - Anuj Pokle
- Department of PhysicsCenter for Materials Science and NanotechnologyUniversity of OsloP.O. Box 10480316OsloNorway
| | - Øystein Prytz
- Department of PhysicsCenter for Materials Science and NanotechnologyUniversity of OsloP.O. Box 10480316OsloNorway
| | - Unni Olsbye
- Department of ChemistryUniversity of OsloP.O. Box 10330315OsloNorway
| | - Florian Meirer
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| | - Simo Huotari
- Department of PhysicsUniversity of HelsinkiP. O. Box 6400014HelsinkiFinland
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis groupDepartment of ChemistryUtrecht UniversityUniversiteitsweg 993584 CGUtrechtThe Netherlands
| |
Collapse
|
9
|
Marcato T, Krumeich F, Shih CJ. Confinement-Tunable Transition Dipole Moment Orientation in Perovskite Nanoplatelet Solids and Binary Blends. ACS Nano 2022; 16:18459-18471. [PMID: 36350363 DOI: 10.1021/acsnano.2c06600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Tuning the transition dipole moment (TDM) orientation in low-dimensional semiconductors is of fundamental and practical interest, as it enables high-efficiency nanophotonics and light-emitting diodes. However, despite recent progress in nanomaterials physics and chemistry, material systems that allow continuous tuning of the TDM orientation remain rare. Here, combining k-space photoluminescence spectroscopy and multiscale modeling, we demonstrate that the TDM orientation in lead halide perovskite (LHP) nanoplatelet (NPL) solids is largely confinement-tunable through the NPL geometry that regulates the anisotropy of Bloch states, dielectric confinement, and exciton fine structure. We further quantified the role of uniaxial ordering during NPL assembly in modifying the macroscopic emission directionality of thin films, which is especially important in actual optoelectronic devices. Our theoretical framework successfully corroborates the previous prediction of exciton bright level order reversal with experimental evidence of a counterintuitive reduction of in-plane dipole ratio in ultrathin (one- and two-monolayer-thick) NPLs, even at room temperature. More interestingly, the NPLs retain their TDM orientation in binary blends irrespective of interparticle energy transfer, owing to the phase segregation and NPL-NPL decoupling, enabling the design of films whose fluorescence exhibits an intrinsic angle-dependent color gradient.
Collapse
Affiliation(s)
- Tommaso Marcato
- Institute for Chemical and Bioengineering, ETH Zürich, 8093Zürich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, ETH Zürich, 8093Zürich, Switzerland
| | - Chih-Jen Shih
- Institute for Chemical and Bioengineering, ETH Zürich, 8093Zürich, Switzerland
| |
Collapse
|
10
|
Safonova OV, Sadykov II, Sushkevich VL, Krumeich F, Nuguid RJG, van Bokhoven JA, Nachtegaal M. Platinum‐Iron(II) Oxide Sites Directly Responsible for Preferential Carbon Monoxide Oxidation at Ambient Temperature: An Operando X‐ray Absorption Spectroscopy Study. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202214032] [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: 11/11/2022]
Affiliation(s)
- Olga V. Safonova
- Paul Scherrer Institute: Paul Scherrer Institut PSI Energy and Environment Villigen PSI 5232 Villigen SWITZERLAND
| | - Ilia I. Sadykov
- Paul Scherrer Institute: Paul Scherrer Institut PSI Energy and Environment Research Division SWITZERLAND
| | - Vitaly L. Sushkevich
- Paul Scherrer Institute: Paul Scherrer Institut PSI Energy and Environment Research Division SWITZERLAND
| | - Frank Krumeich
- ETH Zurich Department of Biosystems Science and Engineering: Eidgenossische Technische Hochschule Zurich Department of Biosystems Science and Engineering Department of Biosystems Science and Engineering: Eidgenossische Technische Hochschule Zurich Department of Biosystems Science and Engineering SWITZERLAND
| | - Rob Jeremiah G. Nuguid
- Paul Scherrer Institute: Paul Scherrer Institut PSI Energy and Environment Research Division SWITZERLAND
| | - Jeroen A. van Bokhoven
- ETH Zurich Department of Chemistry and Applied Biosciences: Eidgenossische Technische Hochschule Zurich Departement Chemie und Angewandte Biowissenschaften Department of Chemistry and Applied Biosciences: Eidgenossische Technische Hochschule Zurich Departement Chemie und Angewandte Biowissenschaften SWITZERLAND
| | - Maarten Nachtegaal
- Paul Scherrer Institute: Paul Scherrer Institut PSI Energy and Environment Research Division SWITZERLAND
| |
Collapse
|
11
|
Genz NS, Kallio AJ, Oord R, Krumeich F, Pokle A, Prytz Ø, Olsbye U, Meirer F, Huotari S, Weckhuysen BM. Operando Laboratory‐based Multi‐edge X‐ray Absorption Near‐Edge Spectroscopy of Solid Catalysts. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209334] [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: 11/10/2022]
Affiliation(s)
- Nina S. Genz
- Utrecht University: Universiteit Utrecht Chemistry NETHERLANDS
| | | | - Ramon Oord
- Utrecht University: Universiteit Utrecht Chemistry NETHERLANDS
| | - Frank Krumeich
- ETH Zurich: Eidgenossische Technische Hochschule Zurich Chemistry SWITZERLAND
| | - Anuj Pokle
- University of Oslo: Universitetet i Oslo Physics NORWAY
| | - Øystein Prytz
- University of Oslo: Universitetet i Oslo Physics NORWAY
| | - Unni Olsbye
- University of Oslo: Universitetet i Oslo Chemistry NORWAY
| | - Florian Meirer
- Utrecht University: Universiteit Utrecht Chemistry NETHERLANDS
| | - Simo Huotari
- University of Helsinki: Helsingin Yliopisto Physics FINLAND
| | - Bert Marc Weckhuysen
- Utrecht University Dept. of Inorganic Chemistry and Catalysis Universiteitsweg 99 3584 CG Utrecht NETHERLANDS
| |
Collapse
|
12
|
Kaiser SK, Fako E, Surin I, Krumeich F, Kondratenko VA, Kondratenko EV, Clark AH, López N, Pérez-Ramírez J. Performance descriptors of nanostructured metal catalysts for acetylene hydrochlorination. Nat Nanotechnol 2022; 17:606-612. [PMID: 35484211 DOI: 10.1038/s41565-022-01105-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Controlling the precise atomic architecture of supported metals is central to optimizing their catalytic performance, as recently exemplified for nanostructured platinum and ruthenium systems in acetylene hydrochlorination, a key process for vinyl chloride production. This opens the possibility of building on historically established activity correlations. In this study, we derived quantitative activity, selectivity and stability descriptors that account for the metal-dependent speciation and host effects observed in acetylene hydrochlorination. To achieve this, we generated a platform of Au, Pt, Ru, Ir, Rh and Pd single atoms and nanoparticles supported on different types of carbon and assessed their evolution during synthesis and under the relevant reaction conditions. Combining kinetic, transient and chemisorption analyses with modelling, we identified the acetylene adsorption energy as a speciation-sensitive activity descriptor, further determining catalyst selectivity with respect to coke formation. The stability of the different nanostructures is governed by the interplay between single atom-support interactions and chlorine affinity, promoting metal redispersion or agglomeration, respectively.
Collapse
Affiliation(s)
- Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Edvin Fako
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain
| | - Ivan Surin
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | | | | | | | - Núria López
- Institute of Chemical Research of Catalonia, The Barcelona Institute of Science and Technology, Tarragona, Spain.
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
| |
Collapse
|
13
|
Tang Z, Surin I, Rasmussen A, Krumeich F, Kondratenko EV, Kondratenko VA, Pérez‐Ramírez J. Ceria‐Supported Gold Nanoparticles as a Superior Catalyst for Nitrous Oxide Production via Ammonia Oxidation. Angew Chem Int Ed Engl 2022; 61:e202200772. [DOI: 10.1002/anie.202200772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Indexed: 12/21/2022]
Affiliation(s)
- Zhenchen Tang
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ivan Surin
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Asbjörn Rasmussen
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Evgenii V. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Vita A. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
14
|
Tang Z, Surin I, Rasmussen A, Krumeich F, Kondratenko EV, Kondratenko VA, Pérez‐Ramírez J. Back Cover: Ceria‐Supported Gold Nanoparticles as a Superior Catalyst for Nitrous Oxide Production via Ammonia Oxidation (Angew. Chem. Int. Ed. 19/2022). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/anie.202204057] [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: 11/10/2022]
Affiliation(s)
- Zhenchen Tang
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ivan Surin
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Asbjörn Rasmussen
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Evgenii V. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Vita A. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
15
|
Kumar S, Marcato T, Krumeich F, Li YT, Chiu YC, Shih CJ. Anisotropic nanocrystal superlattices overcoming intrinsic light outcoupling efficiency limit in perovskite quantum dot light-emitting diodes. Nat Commun 2022; 13:2106. [PMID: 35440650 PMCID: PMC9018755 DOI: 10.1038/s41467-022-29812-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 03/31/2022] [Indexed: 12/17/2022] Open
Abstract
Quantum dot (QD) light-emitting diodes (LEDs) are emerging as one of the most promising candidates for next-generation displays. However, their intrinsic light outcoupling efficiency remains considerably lower than the organic counterpart, because it is not yet possible to control the transition-dipole-moment (TDM) orientation in QD solids at device level. Here, using the colloidal lead halide perovskite anisotropic nanocrystals (ANCs) as a model system, we report a directed self-assembly approach to form the anisotropic nanocrystal superlattices (ANSLs). Emission polarization in individual ANCs rescales the radiation from horizontal and vertical transition dipoles, effectively resulting in preferentially horizontal TDM orientation. Based on the emissive thin films comprised of ANSLs, we demonstrate an enhanced ratio of horizontal dipole up to 0.75, enhancing the theoretical light outcoupling efficiency of greater than 30%. Our optimized single-junction QD LEDs showed peak external quantum efficiency of up to 24.96%, comparable to state-of-the-art organic LEDs. Controlling the transition-dipole-moment orientation in quantum dot solids at device level has not been achieved before. Here, the authors demonstrated intrinsic light out-coupling enhancement approach to boost the external quantum efficiency up to 25% by using the colloidal lead halide perovskite anisotropic nanocrystals.
Collapse
Affiliation(s)
- Sudhir Kumar
- Institute for Chemical and Bioengineering, ETH Zürich, 8093, Zürich, Switzerland
| | - Tommaso Marcato
- Institute for Chemical and Bioengineering, ETH Zürich, 8093, Zürich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, ETH Zürich, 8093, Zürich, Switzerland
| | - Yen-Ting Li
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, ROC.,National Synchrotron Radiation Research Center, Hsinchu, 30076, Taiwan, ROC
| | - Yu-Cheng Chiu
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan, ROC
| | - Chih-Jen Shih
- Institute for Chemical and Bioengineering, ETH Zürich, 8093, Zürich, Switzerland.
| |
Collapse
|
16
|
Solari SF, Poon LN, Wörle M, Krumeich F, Li YT, Chiu YC, Shih CJ. Stabilization of Lead-Reduced Metal Halide Perovskite Nanocrystals by High-Entropy Alloying. J Am Chem Soc 2022; 144:5864-5870. [PMID: 35319205 PMCID: PMC8991010 DOI: 10.1021/jacs.1c12294] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Colloidal metal halide perovskite (MHP) nanocrystals (NCs) are an emerging class of fluorescent quantum dots (QDs) for next-generation optoelectronics. A great hurdle hindering practical applications, however, is their high lead content, where most attempts addressing the challenge in the literature compromised the material's optical performance or colloidal stability. Here, we present a postsynthetic approach that stabilizes the lead-reduced MHP NCs through high-entropy alloying. Upon doping the NCs with multiple elements in considerably high concentrations, the resulting high-entropy perovskite (HEP) NCs remain to possess excellent colloidal stability and narrowband emission, with even higher photoluminescence (PL) quantum yields, ηPL, and shorter fluorescence lifetimes, τPL. The formation of multiple phases containing mixed interstitial and doping phases is suggested by X-ray crystallography. Importantly, the crystalline phases with higher degrees of lattice expansion and lattice contraction can be stabilized upon high-entropy alloying. We show that the lead content can be approximately reduced by up to 55% upon high-entropy alloying. The findings reported here make one big step closer to the commercialization of perovskite NCs.
Collapse
Affiliation(s)
- Simon F Solari
- Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland
| | - Lok-Nga Poon
- Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland
| | - Michael Wörle
- Laboratory of Inorganic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Yen-Ting Li
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.,National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yu-Cheng Chiu
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.,Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Chih-Jen Shih
- Institute for Chemical and Bioengineering, ETH Zürich, 8093 Zürich, Switzerland
| |
Collapse
|
17
|
Giulimondi V, Kaiser SK, Martín AJ, Büchele S, Krumeich F, Clark AH, Pérez-Ramírez J. Controlled Formation of Dimers and Spatially Isolated Atoms in Bimetallic Au-Ru Catalysts via Carbon-Host Functionalization. Small 2022; 18:e2200224. [PMID: 35224866 DOI: 10.1002/smll.202200224] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The introduction of a foreign metal atom in the coordination environment of single-atom catalysts constitutes an exciting frontier of active-site engineering, generating bimetallic low-nuclearity catalysts often exhibiting unique catalytic synergies. To date, the exploration of their full scope is thwarted by (i) the lack of synthetic techniques with control over intermetallic coordination, and (ii) the challenging characterization of these materials. Herein, carbon-host functionalization is presented as a strategy to selectively generate Au-Ru dimers and isolated sites by simple incipient wetness impregnation, as corroborated by careful X-ray absorption spectroscopy analysis. The distinct catalytic fingerprints are unveiled via the hydrogen evolution reaction, employed as a probe for proton adsorption properties. Intriguingly, the virtually inactive Au atoms enhance the reaction kinetics of their Ru counterparts already when spatially isolated, by shifting the proton adsorption free energy closer to neutrality. Remarkably, the effect is magnified by a factor of 2 in dimers. These results exemplify the relevance of controlling intermetallic coordination for the rational design of bimetallic low-nuclearity catalysts.
Collapse
Affiliation(s)
- Vera Giulimondi
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Antonio J Martín
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Simon Büchele
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Adam H Clark
- Paul Scherrer Institute, Villigen PSI, 5232, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| |
Collapse
|
18
|
Tang Z, Surin I, Rasmussen A, Krumeich F, Kondratenko EV, Kondratenko VA, Pérez‐Ramírez J. Rücktitelbild: Ceria‐Supported Gold Nanoparticles as a Superior Catalyst for Nitrous Oxide Production via Ammonia Oxidation (Angew. Chem. 19/2022). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204057] [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: 11/08/2022]
Affiliation(s)
- Zhenchen Tang
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ivan Surin
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Asbjörn Rasmussen
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Evgenii V. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Vita A. Kondratenko
- Department of Catalyst Discovery and Reaction Engineering Leibniz-Institut für Katalyse Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
19
|
Giulimondi V, Kaiser SK, Agrachev M, Krumeich F, Clark AH, Mitchell S, Jeschke G, Pérez-Ramírez J. Redispersion strategy for high-loading carbon-supported metal catalysts with controlled nuclearity. J Mater Chem A Mater 2022; 10:5953-5961. [PMID: 35401984 PMCID: PMC8922557 DOI: 10.1039/d1ta09238c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/21/2021] [Indexed: 06/14/2023]
Abstract
Supported low-nuclearity metal catalysts integrating single atoms or small clusters have emerged as promising materials for diverse applications. While sophisticated synthetic methods provide a high level of nuclearity control in the subnanometre regime, these routes do not fulfil the requirements for translation into industrial practice of (i) effectiveness for high metal contents and (ii) facile scalability. Herein, we present a gas-phase redispersion strategy consisting of sequential C2H2 and HCl treatments to gradually disperse Ru, Rh and Ir nanoparticles supported on commercial activated carbon with metal content up to 10 wt% and initial average sizes of ≈ 1 nm into small clusters and eventually single atoms. Avoidance of nanoparticle surface overchlorination, which hinders C2H2 adsorption, is identified as key for the redispersion process, as demonstrated by the inefficacy of both C2H2-HCl cofeeding and inverse sequence (i.e., HCl first) treatments. Precise size control (±0.1 nm) is enabled by regulating the number of C2H2-HCl cycles. Detailed characterisation by X-ray absorption spectroscopy, electron paramagnetic resonance and time-resolved mass spectrometry reveals that the redispersion occurs via a layer-by-layer mechanism. Specifically, the migration of surface chlorinated metal species to the carbon support is induced by the C2H2 treatment, depleting accessible surface Cl atoms, while the subsequent HCl treatment rechlorinates the cluster surface. The strategy paves the way for the generation of high-density metal sites with tuneable nuclearity for tailored applications.
Collapse
Affiliation(s)
- Vera Giulimondi
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Mikhail Agrachev
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Adam H Clark
- Paul Scherrer Institute 5232 Villigen PSI Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Gunnar Jeschke
- 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
| |
Collapse
|
20
|
Tang Z, Surin I, Rasmussen A, Krumeich F, Kondratenko EV, Kondratenko VA, Pérez-Ramírez J. Ceria‐Supported Gold Nanoparticles as a Superior Catalyst for Nitrous Oxide Production via Ammonia Oxidation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200772] [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: 11/09/2022]
Affiliation(s)
- Zhenchen Tang
- Eidgenossische Technische Hochschule Zurich Chemistry and Applied Biosciences SWITZERLAND
| | - Ivan Surin
- Eidgenossische Technische Hochschule Zurich Chemistry and Applied Biosciences SWITZERLAND
| | - Asbjörn Rasmussen
- Eidgenossische Technische Hochschule Zurich Chemistry and Applied Biosciences SWITZERLAND
| | - Frank Krumeich
- Eidgenossische Technische Hochschule Zurich Chemistry and Applied Biosciences SWITZERLAND
| | | | | | - Javier Pérez-Ramírez
- ETH Zurich Institute for Chemical and Bioengineering ETH HönggerbergVladimir-Prelog-Weg 1HCI E125 CH-8093 Zurich SWITZERLAND
| |
Collapse
|
21
|
Saedy S, Newton MA, Zabilskiy M, Lee JH, Krumeich F, Ranocchiari M, van Bokhoven JA. Copper–zinc oxide interface as a methanol-selective structure in Cu–ZnO catalyst during catalytic hydrogenation of carbon dioxide to methanol. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00224h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The proper contact of zinc oxide and copper phases is essential achieving high activity/selectivity toward methanol in the Cu–ZnO system.
Collapse
Affiliation(s)
- Saeed Saedy
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Maxim Zabilskiy
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Jin Hee Lee
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Institute for Chemical and Bioengineering, ETH Zurich, 8093 Zurich, Switzerland
| | - Marco Ranocchiari
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Jeroen A. van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institut, 5232 Villigen, Switzerland
- Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| |
Collapse
|
22
|
Bellini M, Bösken J, Wörle M, Thöny D, Gamboa-Carballo JJ, Krumeich F, Bàrtoli F, Miller HA, Poggini L, Oberhauser W, Lavacchi A, Grützmacher H, Vizza F. Remarkable Stability of a Molecular Ruthenium Complex in PEM Water Electrolysis. Chem Sci 2022; 13:3748-3760. [PMID: 35432912 PMCID: PMC8966732 DOI: 10.1039/d1sc07234j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/03/2022] [Indexed: 12/03/2022] Open
Abstract
The dinuclear Ru diazadiene olefin complex, [Ru2(OTf)(μ-H)(Me2dad)(dbcot)2], is an active catalyst for hydrogen evolution in a Polymer Exchange Membrane (PEM) water electrolyser. When supported on high surface area carbon black and at 80 °C, [Ru2(OTf)(μ-H)(Me2dad)(dbcot)2]@C evolves hydrogen at the cathode of a PEM electrolysis cell (400 mA cm−2, 1.9 V). A remarkable turn over frequency (TOF) of 7800 molH2 molcatalyst−1 h−1 is maintained over 7 days of operation. A series of model reactions in homogeneous media and in electrochemical half cells, combined with DFT calculations, are used to rationalize the hydrogen evolution mechanism promoted by [Ru2(OTf)(μ-H)(Me2dad)(dbcot)2]. Molecular dinuclear ruthenium complexes deposited on conducting carbon serve as active sites for the evolution of hydrogen from neutral water in a Polymer Exchange Membrane (PEM) water electrolyser.![]()
Collapse
Affiliation(s)
- Marco Bellini
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| | - Jonas Bösken
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
| | - Michael Wörle
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
| | - Debora Thöny
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
| | - Juan José Gamboa-Carballo
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
- Higher Institute of Technologies and Applied Sciences (InSTEC), University of Havana 10600 Havana Cuba
| | - Frank Krumeich
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
| | - Francesco Bàrtoli
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena Via Aldo Moro 2 Siena 53100 Italy
| | - Hamish A Miller
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| | - Lorenzo Poggini
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| | - Werner Oberhauser
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| | - Alessandro Lavacchi
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences, ETH Hönggerberg CH-8093 Zürich Switzerland
| | - Francesco Vizza
- Institute of Chemistry of Organometallic Compounds - National Research Council (ICCOM-CNR) Via Madonna del Piano 10, 50019 Sesto Fiorentino Florence Italy
| |
Collapse
|
23
|
Li X, Wang X, Sadykov II, Palagin D, Safonova OV, Li J, Beck A, Krumeich F, van Bokhoven JA, Artiglia L. Temperature and Reaction Environment Influence the Nature of Platinum Species Supported on Ceria. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03165] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiansheng Li
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Xing Wang
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Ilia I. Sadykov
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory for Operando Spectroscopy, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Olga V. Safonova
- Laboratory for Operando Spectroscopy, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Junhua Li
- School of Environment, Tsinghua University, 100084 Beijing,, China
| | - Arik Beck
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, 8093 Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| | - Luca Artiglia
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
- Laboratory of Environmental Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
| |
Collapse
|
24
|
Sadykov II, Zabilskiy M, Clark AH, Krumeich F, Sushkevich V, van Bokhoven JA, Nachtegaal M, Safonova OV. Time-Resolved XAS Provides Direct Evidence for Oxygen Activation on Cationic Iron in a Bimetallic Pt-FeO x/Al 2O 3 Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ilia I. Sadykov
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, CH-8093 Zurich, Switzerland
| | | | - Adam H. Clark
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Vitaly Sushkevich
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Jeroen A. van Bokhoven
- Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland
- Institute for Chemical and Bioengineering, ETH Zurich, CH-8093 Zurich, Switzerland
| | | | | |
Collapse
|
25
|
Zabilskiy M, Sushkevich VL, Newton MA, Krumeich F, Nachtegaal M, van Bokhoven JA. Mechanistic Study of Carbon Dioxide Hydrogenation over Pd/ZnO-Based Catalysts: The Role of Palladium-Zinc Alloy in Selective Methanol Synthesis. Angew Chem Int Ed Engl 2021; 60:17053-17059. [PMID: 33983683 PMCID: PMC8361960 DOI: 10.1002/anie.202103087] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 03/02/2021] [Revised: 04/28/2021] [Indexed: 11/23/2022]
Abstract
Pd/ZnO catalysts show good activity and high selectivity to methanol during catalytic CO2 hydrogenation. The Pd‐Zn alloy phase has usually been considered as the active phase, though mechanistic studies under operando conditions have not been conducted to verify this. Here, we report a mechanistic study under realistic conditions of methanol synthesis, using in situ and operando X‐ray absorption spectroscopy, X‐ray powder diffraction, and time‐resolved isotope labeling experiments coupled with FTIR spectroscopy and mass spectrometry. Pd‐Zn alloy‐based catalysts, prepared through reduction of a heterobimetallic PdIIZnII acetate bridge complex, and which do not contain zinc oxide or any PdZn/ZnO interface, produce mostly CO. The Pd‐Zn phase is associated with the formation of CO, and does not provide the active sites required to produce methanol from the direct hydrogenation of carbon dioxide. The presence of a ZnO phase, in contact with a Pd‐Zn phase, is essential for efficient methanol production.
Collapse
Affiliation(s)
- Maxim Zabilskiy
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Vitaly L Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Mark A Newton
- Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Frank Krumeich
- Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Maarten Nachtegaal
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Jeroen A van Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232, Villigen, Switzerland.,Institute for Chemistry and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| |
Collapse
|
26
|
Zabilskiy M, Sushkevich VL, Newton MA, Krumeich F, Nachtegaal M, Bokhoven JA. Mechanistic Study of Carbon Dioxide Hydrogenation over Pd/ZnO‐Based Catalysts: The Role of Palladium–Zinc Alloy in Selective Methanol Synthesis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103087] [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: 11/11/2022]
Affiliation(s)
- Maxim Zabilskiy
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institute 5232 Villigen Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institute 5232 Villigen Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Frank Krumeich
- Institute for Chemistry and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Maarten Nachtegaal
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institute 5232 Villigen Switzerland
| | - Jeroen A. Bokhoven
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institute 5232 Villigen Switzerland
- Institute for Chemistry and Bioengineering ETH Zurich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
27
|
Li T, Beck A, Krumeich F, Artiglia L, Ghosalya MK, Roger M, Ferri D, Kröcher O, Sushkevich V, Safonova OV, van Bokhoven JA. Stable Palladium Oxide Clusters Encapsulated in Silicalite-1 for Complete Methane Oxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04868] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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)
- Teng Li
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Arik Beck
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Luca Artiglia
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
| | - Manoj K. Ghosalya
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
| | - Maneka Roger
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
- École polytechnique fédérale de Lausanne (EPFL), Institute of Chemical Sciences and Engineering, CH-1015 Lausanne, Switzerland
| | - Davide Ferri
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
| | - Oliver Kröcher
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
- École polytechnique fédérale de Lausanne (EPFL), Institute of Chemical Sciences and Engineering, CH-1015 Lausanne, Switzerland
| | | | | | - Jeroen A. van Bokhoven
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
- Paul Scherrer Insitute, CH-5232 Villigen, Switzerland
| |
Collapse
|
28
|
Gao Z, Odstrcil M, Böcklein S, Palagin D, Holler M, Ferreira Sanchez D, Krumeich F, Menzel A, Stampanoni M, Mestl G, van Bokhoven JA, Guizar-Sicairos M, Ihli J. Sparse ab initio x-ray transmission spectrotomography for nanoscopic compositional analysis of functional materials. Sci Adv 2021; 7:7/24/eabf6971. [PMID: 34108209 PMCID: PMC8189584 DOI: 10.1126/sciadv.abf6971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/21/2021] [Indexed: 05/25/2023]
Abstract
The performance of functional materials is either driven or limited by nanoscopic heterogeneities distributed throughout the material's volume. To better our understanding of these materials, we need characterization tools that allow us to determine the nature and distribution of these heterogeneities in their native geometry in 3D. Here, we introduce a method based on x-ray near-edge spectroscopy, ptychographic x-ray computed nanotomography, and sparsity techniques. The method allows the acquisition of quantitative multimodal tomograms of representative sample volumes at sub-30 nm half-period spatial resolution within practical acquisition times, which enables local structure refinements in complex geometries. To demonstrate the method's capabilities, we investigated the transformation of vanadium phosphorus oxide catalysts with industrial use. We observe changes from the micrometer to the atomic level and the formation of a location-specific defect so far only theorized. These results led to a reevaluation of these catalysts used in the production of plastics.
Collapse
Affiliation(s)
- Zirui Gao
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.
- ETH and University of Zürich, Institute for Biomedical Engineering, 8092 Zürich, Switzerland
| | - Michal Odstrcil
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- Carl Zeiss SMT GmbH, 73447 Oberkochen, Germany
| | | | | | - Mirko Holler
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
| | | | - Frank Krumeich
- ETH Zürich, Institute for Chemical and Bioengineering, 8093 Zürich, Switzerland
| | | | - Marco Stampanoni
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH and University of Zürich, Institute for Biomedical Engineering, 8092 Zürich, Switzerland
| | | | - Jeroen Anton van Bokhoven
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland
- ETH Zürich, Institute for Chemical and Bioengineering, 8093 Zürich, Switzerland
| | | | - Johannes Ihli
- Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.
| |
Collapse
|
29
|
Iwase K, Ebner K, Diercks JS, Saveleva VA, Ünsal S, Krumeich F, Harada T, Honma I, Nakanishi S, Kamiya K, Schmidt TJ, Herranz J. Effect of Cobalt Speciation and the Graphitization of the Carbon Matrix on the CO 2 Electroreduction Activity of Co/N-Doped Carbon Materials. ACS Appl Mater Interfaces 2021; 13:15122-15131. [PMID: 33764754 DOI: 10.1021/acsami.0c21920] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The electroreduction of carbon dioxide is considered a key reaction for the valorization of CO2 emitted in industrial processes or even present in the environment. Cobalt-nitrogen co-doped carbon materials featuring atomically dispersed Co-N sites have been shown to display superior activities and selectivities for the reduction of carbon dioxide to CO, which, in combination with H2 (i.e., as syngas), is regarded as an added-value CO2-reduction product. Such catalysts can be synthesized using heat treatment steps that imply the carbonization of Co-N-containing precursors, but the detailed effects of the synthesis conditions and corresponding materials' composition on their catalytic activities have not been rigorously studied. To this end, in the present work, we synthesized cobalt-nitrogen co-doped carbon materials with different heat treatment temperatures and studied the relation among their surface- and Co-speciation and their CO2-to-CO electroreduction activity. Our results reveal that atomically dispersed cobalt-nitrogen sites are responsible for CO generation while suggesting that this CO-selectivity improves when these atomic Co-N centers are hosted in the carbon layers that cover the Co nanoparticles featured in the catalysts synthesized at higher heat treatment temperatures.
Collapse
Affiliation(s)
- Kazuyuki Iwase
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Kathrin Ebner
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Justus S Diercks
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | | | - Seçil Ünsal
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232 Villigen, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Takashi Harada
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Itaru Honma
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Shuji Nakanishi
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Kazuhide Kamiya
- Research Center for Solar Energy Chemistry, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Thomas J Schmidt
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232 Villigen, Switzerland
- Laboratory of Physical Chemistry, ETH Zürich, 8093 Zürich, Switzerland
| | - Juan Herranz
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232 Villigen, Switzerland
| |
Collapse
|
30
|
Franken T, Roger M, Petrov AW, Clark AH, Agote-Arán M, Krumeich F, Kröcher O, Ferri D. Effect of Short Reducing Pulses on the Dynamic Structure, Activity, and Stability of Pd/Al 2O 3 for Wet Lean Methane Oxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00328] [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: 11/29/2022]
Affiliation(s)
- Tanja Franken
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
| | - Maneka Roger
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
- Institute for Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Andrey W. Petrov
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
| | - Adam H. Clark
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
| | - Miren Agote-Arán
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zurich, Switzerland
| | - Oliver Kröcher
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
- Institute for Chemical Sciences and Engineering, École polytechnique fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Davide Ferri
- Paul Scherrer Institut, Forschungsstrasse 111, CH-5232 Villigen PSI, Switzerland
| |
Collapse
|
31
|
Kaiser SK, Clark AH, Cartocci L, Krumeich F, Pérez-Ramírez J. Sustainable Synthesis of Bimetallic Single Atom Gold-Based Catalysts with Enhanced Durability in Acetylene Hydrochlorination. Small 2021; 17:e2004599. [PMID: 33432775 DOI: 10.1002/smll.202004599] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Gold single-atom catalysts (SACs) exhibit outstanding reactivity in acetylene hydrochlorination to vinyl chloride, but their practical applicability is compromised by current synthesis protocols, using aqua regia as chlorine-based dispersing agent, and their high susceptibility to sintering on non-functionalized carbon supports at >500 K and/or under reaction conditions. Herein, a sustainable synthesis route to carbon-supported gold nanostructures in bimetallic catalysts is developed by employing salts as alternative chlorine source, allowing for tailored gold dispersion, ultimately reaching atomic level when using H2 PtCl6 . To rationalize these observations, several synthesis parameters (i.e., pH, Cl-content) as well as the choice of metal chlorides are evaluated, hinting at the key role of platinum in promoting a chlorine-mediated dispersion mechanism. This can be further extrapolated to redisperse large gold agglomerates (>70 nm) on carbon carriers into isolated atoms, which has important implications for catalyst regeneration. Another key role of platinum single atoms is to inhibit the sintering of their spatially isolated gold-based analogs up to 800 K and during acetylene hydrochlorination, without compromising the intrinsic activity of Au(I)-Cl active sites. Accordingly, exploiting cooperativity effects of a second metal is a promising strategy towards practical applicability of gold SACs, opening up exciting opportunities for multifunctional single-atom catalysis.
Collapse
Affiliation(s)
- Selina K Kaiser
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Adam H Clark
- Paul Scherrer Institut, Villigen PSI, 5232, Switzerland
| | - Lucrezia Cartocci
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Frank Krumeich
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| |
Collapse
|
32
|
Solari SF, Kumar S, Jagielski J, Kubo NM, Krumeich F, Shih CJ. Ligand-assisted solid phase synthesis of mixed-halide perovskite nanocrystals for color-pure and efficient electroluminescence. J Mater Chem C Mater 2021; 9:5771-5778. [PMID: 33996098 PMCID: PMC8101407 DOI: 10.1039/d0tc04667a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/20/2021] [Indexed: 06/12/2023]
Abstract
Colloidal nanocrystals (NCs) of lead halide perovskites have generated considerable interest in the fabrication of optoelectronic devices, such as light emitting-diodes (LEDs), because of their tunable optical bandgap, narrow spectral width, and high defect tolerance. However, the inhomogeneous halide distribution within individual NCs remains a critical challenge in order to obtain color-stable electroluminescence in mixed-halide systems. Here, we demonstrate a new post-synthetic approach, ligand-assisted solid phase synthesis (LASPS), for the preparation of electroluminescent colloidal NCs of methylammonium (MA) lead halide perovskites, at room temperature. The slow reaction kinetics preserves the morphology, size, and shape in the resulting NCs whose emission covers the entire visible spectral region with photoluminescence (PL) quantum yields (QYs) of up to >90% and colloidal stability up to several months. The LEDs fabricated using the prepared mixed-halide NCs display narrowband electroluminescence (EL) ranging from 476 to 720 nm. The optimized red LEDs exhibit an external quantum efficiency, η ext, of up to 2.65%, with the CIE 1931 color coordinates of (0.705, 0.290), nearly identical to those of the red primary in the recommendation (rec.) 2020 standard (0.708, 0.292).
Collapse
Affiliation(s)
- Simon F Solari
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| | - Sudhir Kumar
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| | - Jakub Jagielski
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| | - Nikolas M Kubo
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| | - Chih-Jen Shih
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir Prelog Weg 1 CH-8093 Zürich Switzerland
| |
Collapse
|
33
|
Gschwend PM, Keevend K, Aellen M, Gogos A, Krumeich F, Herrmann IK, Pratsinis SE. Bi 2O 3 boosts brightness, biocompatibility and stability of Mn-doped Ba 3(VO 4) 2 as NIR-II contrast agent. J Mater Chem B 2021; 9:3038-3046. [PMID: 33885665 DOI: 10.1039/d0tb02792h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Deep-tissue fluorescence imaging remains a major challenge as there is limited availability of bright biocompatible materials with high photo- and chemical stability. Contrast agents with emission wavelengths above 1000 nm are most favorable for deep tissue imaging, offering deeper penetration and less scattering than those operating at shorter wavelengths. Organic fluorophores suffer from low stability while inorganic nanomaterials (e.g. quantum dots) are based typically on heavy metals raising toxicity concerns. Here, we report scalable flame aerosol synthesis of water-dispersible Ba3(VO4)2 nanoparticles doped with Mn5+ which exhibit a narrow emission band at 1180 nm upon near-infrared excitation. Their co-synthesis with Bi2O3 results in even higher absorption and ten-fold increased emission intensity. The addition of Bi2O3 also improved both chemical stability and cytocompatibility by an order of magnitude enabling imaging deep within tissue. Taken together, these bright particles offer excellent photo-, chemical and colloidal stability in various media with cytocompatibility to HeLa cells superior to existing commercial contrast agents.
Collapse
Affiliation(s)
- Pascal M Gschwend
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland.
| | | | | | | | | | | | | |
Collapse
|
34
|
Affiliation(s)
- Michael Wörle
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
35
|
Ebner K, Ni L, Saveleva VA, Le Monnier BP, Clark AH, Krumeich F, Nachtegaal M, Luterbacher JS, Kramm UI, Schmidt TJ, Herranz J. 57Fe-Enrichment effect on the composition and performance of Fe-based O2-reduction electrocatalysts. Phys Chem Chem Phys 2021; 23:9147-9157. [DOI: 10.1039/d1cp00707f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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 study how the performance and composition of platinum-group metal free catalysts of the Fe–N–C type are affected upon employing 57Fe-enriched precursors in their synthesis.
Collapse
Affiliation(s)
| | - Lingmei Ni
- TU Darmstadt
- Department of Chemistry and Department of Materials- and Earth Sciences
- Catalysts and Electrocatalysts Group
- 64287 Darmstadt
- Germany
| | | | | | | | - Frank Krumeich
- ETH Zürich
- Laboratory of Inorganic Chemistry
- 8093 Zürich
- Switzerland
| | | | - Jeremy S. Luterbacher
- EPFL Lausanne
- Laboratoire des Procédés Durables et Catalytiques
- 1015 Lausanne
- Switzerland
| | - Ulrike I. Kramm
- TU Darmstadt
- Department of Chemistry and Department of Materials- and Earth Sciences
- Catalysts and Electrocatalysts Group
- 64287 Darmstadt
- Germany
| | - Thomas J. Schmidt
- Paul Scherrer Institut
- 5232 Villigen PSI
- Switzerland
- ETH Zürich
- Laboratory of Physical Chemistry
| | - Juan Herranz
- Paul Scherrer Institut
- 5232 Villigen PSI
- Switzerland
| |
Collapse
|
36
|
Abstract
Abstract
Since the 1970s, high-resolution transmission electron microscopy (HRTEM) is well established as the most appropriate method to explore the structural complexity of niobium tungsten oxides. Today, scanning transmission electron microscopy (STEM) represents an important alternative for performing the structural characterization of such oxides. STEM images recorded with a high-angle annular dark field (HAADF) detector provide not only information about the cation positions but also about the distribution of niobium and tungsten as the intensity is directly correlated to the local scattering potential. The applicability of this method is demonstrated here for the characterization of the real structure of Nb7W10O47.5. This sample contains well-ordered domains of Nb8W9O47 and Nb4W7O31 besides little ordered areas according to HRTEM results. Structural models for Nb4W7O31 and twinning occurring in this phase have been derived from the interpretation of HAADF-STEM images. A remarkable grain boundary between well-ordered domains of Nb4W7O31 and Nb8W9O47 has been found that contains one-dimensionally periodic features. Furthermore, short-range order observed in less ordered areas could be attributed to an intimate intergrowth of small sections of different tetragonal tungsten bronze (TTB) based structures.
Collapse
Affiliation(s)
- Frank Krumeich
- Department of Chemistry and Applied Biosciences , Laboratory of Inorganic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 1 , 8093 Zürich , Switzerland
| |
Collapse
|
37
|
Weber IC, Braun HP, Krumeich F, Güntner AT, Pratsinis SE. Superior Acetone Selectivity in Gas Mixtures by Catalyst-Filtered Chemoresistive Sensors. Adv Sci (Weinh) 2020; 7:2001503. [PMID: 33042762 PMCID: PMC7539217 DOI: 10.1002/advs.202001503] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/30/2020] [Indexed: 05/11/2023]
Abstract
Acetone is a toxic air pollutant and a key breath marker for non-invasively monitoring fat metabolism. Its routine detection in realistic gas mixtures (i.e., human breath and indoor air), however, is challenging, as low-cost acetone sensors suffer from insufficient selectivity. Here, a compact detector for acetone sensing is introduced, having unprecedented selectivity (>250) over the most challenging interferants (e.g., alcohols, aldehydes, aromatics, isoprene, ammonia, H2, and CO). That way, acetone is quantified with fast response (<1 min) down to, at least, 50 parts per billion (ppb) in gas mixtures with such interferants having up to two orders of magnitude higher concentration than acetone at realistic relative humidities (RH = 30-90%). The detector consists of a catalytic packed bed (30 mg) of flame-made Al2O3 nanoparticles (120 m2 g-1) decorated with Pt nanoclusters (average size 9 nm) and a highly sensitive chemo-resistive sensor made by flame aerosol deposition and in situ annealing of nanostructured Si-doped ε-WO3 (Si/WO3). Most importantly, the catalytic packed bed converts interferants continuously enabling highly selective acetone sensing even in the exhaled breath of a volunteer. The detector exhibits stable performance over, at least, 145 days at 90% RH, as validated by mass spectrometry.
Collapse
Affiliation(s)
- Ines C. Weber
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Hugo P. Braun
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Frank Krumeich
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Andreas T. Güntner
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| |
Collapse
|
38
|
Ihli J, Bloch L, Krumeich F, Wakonig K, Holler M, Guizar‐Sicairos M, Weber T, Silva JC, Bokhoven JA. Hierarchical Structure of NiMo Hydrodesulfurization Catalysts Determined by Ptychographic X‐Ray Computed Tomography. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008030] [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: 11/08/2022]
Affiliation(s)
- Johannes Ihli
- Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Leonid Bloch
- Inst. f. Chemie- u. Bioingenieurwissenschaften ETH Zürich 8092 Zürich Switzerland
- European Synchrotron Radiation Facility 38000 Grenoble France
| | - Frank Krumeich
- Inst. f. Chemie- u. Bioingenieurwissenschaften ETH Zürich 8092 Zürich Switzerland
| | - Klaus Wakonig
- Paul Scherrer Institut 5232 Villigen PSI Switzerland
- Institute for Biomedical Engineering ETH Zürich, and University of Zürich 8093 Zürich Switzerland
| | - Mirko Holler
- Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | | | - Thomas Weber
- Shell Technology Centre Amsterdam 1031HW Amsterdam The Netherlands
| | - Julio Cesar Silva
- European Synchrotron Radiation Facility 38000 Grenoble France
- Institut Néel CNRS UPR2940 38042 Grenoble France
| | - Jeroen Anton Bokhoven
- Paul Scherrer Institut 5232 Villigen PSI Switzerland
- Inst. f. Chemie- u. Bioingenieurwissenschaften ETH Zürich 8092 Zürich Switzerland
| |
Collapse
|
39
|
Ihli J, Bloch L, Krumeich F, Wakonig K, Holler M, Guizar-Sicairos M, Weber T, da Silva JC, van Bokhoven JA. Hierarchical Structure of NiMo Hydrodesulfurization Catalysts Determined by Ptychographic X-Ray Computed Tomography. Angew Chem Int Ed Engl 2020; 59:17266-17271. [PMID: 32579755 DOI: 10.1002/anie.202008030] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 06/05/2020] [Indexed: 11/09/2022]
Abstract
Hydrodesulphurization, the removal of sulphur from crude oils, is an essential catalytic process in the petroleum industry safeguarding the production of clean hydrocarbons. Sulphur removal is critical for the functionality of downstream processes and vital to the elimination of environmental pollutants. The effectiveness of such an endeavour is among other factors determined by the structural arrangement of the heterogeneous catalyst. Namely, the accessibility of the catalytically active molybdenum disulphide (MoS2 ) slabs located on the surfaces of a porous alumina carrier. Here, we examined a series of pristine sulfided Mo and NiMo hydrodesulphurization catalysts of increasing metal loading prepared on commercial alumina carriers using ptychographic X-ray computed nanotomography. Structural analysis revealed a build consisting of two interwoven support matrix elements differing in nanoporosity. With increasing metal loading, approaching that of industrial catalysts, these matrix elements exhibit a progressively dissimilar MoS2 surface coverage as well as MoS2 cluster formation at the matrix element boundaries. This is suggestive of metal deposition limitations and/ or catalyst activation and following prohibitive of optimal catalytic utilization. These results will allow for diffusivity calculations, a better rationale of current generation catalyst performance as well as a better distribution of the active phase in next-generation hydrodesulphurization catalysts.
Collapse
Affiliation(s)
- Johannes Ihli
- Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Leonid Bloch
- Inst. f. Chemie- u. Bioingenieurwissenschaften, ETH Zürich, 8092, Zürich, Switzerland.,European Synchrotron Radiation Facility, 38000, Grenoble, France
| | - Frank Krumeich
- Inst. f. Chemie- u. Bioingenieurwissenschaften, ETH Zürich, 8092, Zürich, Switzerland
| | - Klaus Wakonig
- Paul Scherrer Institut, 5232, Villigen PSI, Switzerland.,Institute for Biomedical Engineering, ETH Zürich, and University of Zürich, 8093, Zürich, Switzerland
| | - Mirko Holler
- Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | | | - Thomas Weber
- Shell Technology Centre Amsterdam, 1031HW, Amsterdam, The Netherlands
| | - Julio Cesar da Silva
- European Synchrotron Radiation Facility, 38000, Grenoble, France.,Institut Néel CNRS UPR2940, 38042, Grenoble, France
| | - Jeroen Anton van Bokhoven
- Paul Scherrer Institut, 5232, Villigen PSI, Switzerland.,Inst. f. Chemie- u. Bioingenieurwissenschaften, ETH Zürich, 8092, Zürich, Switzerland
| |
Collapse
|
40
|
Büchele S, Chen Z, Fako E, Krumeich F, Hauert R, Safonova OV, López N, Mitchell S, Pérez‐Ramírez J. Carrier‐Induced Modification of Palladium Nanoparticles on Porous Boron Nitride for Alkyne Semi‐Hydrogenation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005842] [Citation(s) in RCA: 4] [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: 11/06/2022]
Affiliation(s)
- Simon Büchele
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Zupeng Chen
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Edvin Fako
- Institute of Chemical Research of Catalonia and The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Roland Hauert
- Empa— Swiss Federal Laboratories for Materials Science and Technology Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Olga V. Safonova
- Paul Scherrer Institute Forschungsstrasse 111 5232 Villigen Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia and The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Javier Pérez‐Ramírez
- Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| |
Collapse
|
41
|
Büchele S, Chen Z, Fako E, Krumeich F, Hauert R, Safonova OV, López N, Mitchell S, Pérez-Ramírez J. Carrier-Induced Modification of Palladium Nanoparticles on Porous Boron Nitride for Alkyne Semi-Hydrogenation. Angew Chem Int Ed Engl 2020; 59:19639-19644. [PMID: 32628798 DOI: 10.1002/anie.202005842] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 04/22/2020] [Indexed: 11/06/2022]
Abstract
Chemical modifiers enhance the efficiency of metal catalysts in numerous applications, but their introduction often involves toxic or expensive precursors and complicates the synthesis. Here, we show that a porous boron nitride carrier can directly modify supported palladium nanoparticles, originating unparalleled performance in the continuous semi-hydrogenation of alkynes. Analysis of the impact of various structural parameters reveals that using a defective high surface area boron nitride and ensuring a palladium particle size of 4-5 nm is critical for maximizing the specific rate. The combined experimental and theoretical analyses point towards boron incorporation from defects in the support to the palladium subsurface, creating the desired isolated ensembles determining the selectivity. This practical approach highlights the unexplored potential of using tailored carriers for catalyst design.
Collapse
Affiliation(s)
- Simon Büchele
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Zupeng Chen
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Edvin Fako
- Institute of Chemical Research of Catalonia and, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Roland Hauert
- Empa-, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600, Dübendorf, Switzerland
| | - Olga V Safonova
- Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Núria López
- Institute of Chemical Research of Catalonia and, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093, Zürich, Switzerland
| |
Collapse
|
42
|
Dubey RJC, Sasikumar PVW, Cerboni N, Aebli M, Krumeich F, Blugan G, Kravchyk KV, Graule T, Kovalenko MV. Silicon oxycarbide-antimony nanocomposites for high-performance Li-ion battery anodes. Nanoscale 2020; 12:13540-13547. [PMID: 32555828 DOI: 10.1039/d0nr02930k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Silicon oxycarbide (SiOC) has recently regained attention in the field of Li-ion batteries, owing to its effectiveness as a host matrix for nanoscale anode materials alloying with Li. The SiOC matrix, itself providing a high Li-ion storage capacity of 600 mA h g-1, assists in buffering volumetric changes upon lithiation and largely suppresses the formation of an unstable solid-electrolyte interface. Herein, we present the synthesis of homogeneously embedded Sb nanoparticles in a SiOC matrix with the size of 5-40 nm via the pyrolysis of a preceramic polymer. The latter is obtained through the Pt-catalyzed gelation reaction of Sb 2-ethylhexanoate and a poly(methylhydrosiloxane)/divinylbenzene mixture. The complete miscibility of these precursors was achieved by the functionalization of poly(methylhydrosiloxane) with apolar divinyl benzene side-chains. We show that anodes composed of SiOC/Sb exhibit a high rate capability, delivering charge storage capacity in the range of 703-549 mA h g-1 at a current density of 74.4-2232 mA g-1. The impact of Sb on the Si-O-C bonding and on free carbon content of SiOC matrix, along with its concomitant influence on Li-ion storage capacity of SiOC was assessed by Raman and 29Si and 7Li solid-state NMR spectroscopies.
Collapse
Affiliation(s)
- Romain J-C Dubey
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. and Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Pradeep Vallachira Warriam Sasikumar
- Laboratory for High-Performance Ceramics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
| | - Noemi Cerboni
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. and Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Marcel Aebli
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. and Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland.
| | - Gurdial Blugan
- Laboratory for High-Performance Ceramics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
| | - Kostiantyn V Kravchyk
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. and Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Thomas Graule
- Laboratory for High-Performance Ceramics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland.
| | - Maksym V Kovalenko
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, CH-8093 Zürich, Switzerland. and Laboratory for Thin Films and Photovoltaics, Empa - Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| |
Collapse
|
43
|
Capasso Palmiero U, Küffner AM, Krumeich F, Faltova L, Arosio P. Inside Cover: Adaptive Chemoenzymatic Microreactors Composed of Inorganic Nanoparticles and Bioinspired Intrinsically Disordered Proteins (Angew. Chem. Int. Ed. 21/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/anie.202005761] [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: 11/10/2022]
Affiliation(s)
- Umberto Capasso Palmiero
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Andreas M. Küffner
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Lenka Faltova
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| |
Collapse
|
44
|
Capasso Palmiero U, Küffner AM, Krumeich F, Faltova L, Arosio P. Innentitelbild: Adaptive Chemoenzymatic Microreactors Composed of Inorganic Nanoparticles and Bioinspired Intrinsically Disordered Proteins (Angew. Chem. 21/2020). Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005761] [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: 11/09/2022]
Affiliation(s)
- Umberto Capasso Palmiero
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Andreas M. Küffner
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Lenka Faltova
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| |
Collapse
|
45
|
Capasso Palmiero U, Küffner AM, Krumeich F, Faltova L, Arosio P. Adaptive Chemoenzymatic Microreactors Composed of Inorganic Nanoparticles and Bioinspired Intrinsically Disordered Proteins. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000835] [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: 11/08/2022]
Affiliation(s)
- Umberto Capasso Palmiero
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Andreas M. Küffner
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Lenka Faltova
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| |
Collapse
|
46
|
Neaţu Ş, Neaţu F, Diculescu VC, Trandafir MM, Petrea N, Somacescu S, Krumeich F, Wennmacher JTC, Knorpp AJ, van Bokhoven JA, Florea M. Undoped SnO 2 as a Support for Ni Species to Boost Oxygen Generation through Alkaline Water Electrolysis. ACS Appl Mater Interfaces 2020; 12:18407-18420. [PMID: 32216306 DOI: 10.1021/acsami.9b19541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, the synergistic behavior of Ni species and bimodal mesoporous undoped SnO2 is investigated in oxygen evolution reactions (OERs) under alkaline conditions without any other modification of the compositional phases or using noble metals. An efficient and environmentally friendly hydrothermal method to prepare bimodal mesoporous undoped SnO2 with a very high surface area (>130 m2 g-1) and a general deposition-precipitation method for the synthesis of well-dispersed Ni species on undoped SnO2 are reported. The powders were characterized by adsorption-desorption isotherms, TG-DTA, XRD, SEM, TEM, Raman, TPR-H2, and XPS. The best NiSn composite generates, under certain experimental conditions, a very high TOF value of 1.14 s-1 and a mass activity higher than 370 A g-1, which are remarkable results considering the low amount of Ni deposited on the electrode (3.78 ng). Moreover, in 1 M NaOH electrolyte, this material produces more than 24 mA cm-2 at an overpotential value of approximately +0.33 V, with only 5 wt % Ni species. This performance stems from the dual role of undoped SnO2, on the one hand, as a support for active and well-dispersed Ni species and on the other hand as an active player through the oxygen vacancies generated upon Ni deposition.
Collapse
Affiliation(s)
- Ştefan Neaţu
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Florentina Neaţu
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Victor C Diculescu
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Mihaela M Trandafir
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| | - Nicoleta Petrea
- Scientific Research Centre for CBRN Defence and Ecology, 225 Oltenitei Road, 041309 Bucharest, Romania
| | - Simona Somacescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Frank Krumeich
- ETH Zurich, Institute for Chemical and Bioengineering, 8093 Zurich, Switzerland
| | - Julian T C Wennmacher
- ETH Zurich, Institute for Chemical and Bioengineering, 8093 Zurich, Switzerland
- Paul Scherrer Institute, 5232 Viligen, Switzerland
| | - Amy J Knorpp
- ETH Zurich, Institute for Chemical and Bioengineering, 8093 Zurich, Switzerland
| | - Jeroen A van Bokhoven
- ETH Zurich, Institute for Chemical and Bioengineering, 8093 Zurich, Switzerland
- Paul Scherrer Institute, 5232 Viligen, Switzerland
| | - Mihaela Florea
- National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
| |
Collapse
|
47
|
Affiliation(s)
- Frank Krumeich
- Laboratory of Inorganic Chemistry; Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Sebastian Abegg
- Particle Technology Laboratory; Department of Mechanical and Process Engineering; ETH Zürich; Sonneggstrasse 3 8092 Zürich Switzerland
| | - Andreas T. Güntner
- Particle Technology Laboratory; Department of Mechanical and Process Engineering; ETH Zürich; Sonneggstrasse 3 8092 Zürich Switzerland
| |
Collapse
|
48
|
Capasso Palmiero U, Küffner AM, Krumeich F, Faltova L, Arosio P. Adaptive Chemoenzymatic Microreactors Composed of Inorganic Nanoparticles and Bioinspired Intrinsically Disordered Proteins. Angew Chem Int Ed Engl 2020; 59:8138-8142. [DOI: 10.1002/anie.202000835] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/28/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Umberto Capasso Palmiero
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Andreas M. Küffner
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Frank Krumeich
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Lenka Faltova
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| | - Paolo Arosio
- Department of Chemistry and Applied BiosciencesInstitute for Chemical and BioengineeringETH Zurich 8093 Zurich Switzerland
| |
Collapse
|
49
|
Saadun AJ, Pablo-García S, Paunović V, Li Q, Sabadell-Rendón A, Kleemann K, Krumeich F, López N, Pérez-Ramírez J. Performance of Metal-Catalyzed Hydrodebromination of Dibromomethane Analyzed by Descriptors Derived from Statistical Learning. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00679] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- A. J. Saadun
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - S. Pablo-García
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - V. Paunović
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - Q. Li
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - A. Sabadell-Rendón
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - K. Kleemann
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - F. Krumeich
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| | - N. López
- Institute of Chemical Research of Catalonia, ICIQ, The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
| | - J. Pérez-Ramírez
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
| |
Collapse
|
50
|
Büchele S, Martín AJ, Mitchell S, Krumeich F, Collins SM, Xi S, Borgna A, Pérez-Ramírez J. Structure Sensitivity and Evolution of Nickel-Bearing Nitrogen-Doped Carbons in the Electrochemical Reduction of CO2. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05333] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Simon Büchele
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Antonio J. Martín
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Frank Krumeich
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| | - Sean M. Collins
- Department of Materials Science and Metallurgy, University of Cambridge, CB3 0FS Cambridge, United Kingdom
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong
Island, 627833 Singapore
| | - Armando Borgna
- Institute of Chemical and Engineering Sciences, Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong
Island, 627833 Singapore
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
| |
Collapse
|