Copéret Group / @coperetgroup.bsky.social
@CoperetGroup
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Student-run twitter account of the Copéret Group @ ETH Zürich. bluesky: @coperetgroup.bsky.social
Zurich, Switzerland
Joined June 2017
Si-Doping Switches the Reactivity of Cobalt from Methanation to Reverse Water–Gas Shift in CO2 Hydrogenation
onlinelibrary.wiley.com
Si-doping is found to switch the reactivity of cobalt catalysts in CO2 hydrogenation from methanation to the reverse water–gas shift reaction. Using a surface organometallic chemistry approach,...
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Disentangling the Promotional Roles of Interfacial and Alloyed Sites in PtCr Catalysts for CO2 Hydrogenation https://t.co/cGLOnfPsGX
@J_A_C_S
pubs.acs.org
Promotional effects are ubiquitous across catalytic processes involving supported nanoparticles, where additional elements, known as promoters, significantly enhance the catalytic performances...
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Our work on the elucidation of g-alumina surface through multinuclear NMR has recently been highlighted in the AMPERE bulletin; congrats to Domenico for being granted the AMPERE Travel Award. https://t.co/RABN4xe2sz
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Studying the silica–alumina interface one #ALD cycle at a time: atomic mixing isolates Al³⁺ sites and tunes Lewis/Brønsted acidity. Solid-state NMR (via @PANACEA_NMR) + collab w/ @CoperetGroup reveal how Al–O–Si coordination shapes catalysis. 👉 https://t.co/qFcRytEuZq
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Congrats to Colin and other awardees of the Talent Program of Catalysis and Sustainabile Chemistry prizes sponsored by @clariant . @ETH_DCHAB @ETH
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Yesterday, Anna, Enzo and Domenico delivered their public presentation. Topics included the study of chlorinated materials with NQR; advanced microscopy of supported catalysts and NMR of metal centers. One further step before their PhD defence. Congratulations!
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Friday, September 12, noon CEST / 6 am EDT, Konstantin Ivanov Seminar, Christophe Copéret @CoperetGroup ETH Zurich https://t.co/TjJiQMj7Me
#NMRchat #NMR 🧲
sites.google.com
Konstantin Ivanov intercontinental magnetic resonance seminar series started on April 8, 2020. It organises seminars on a range of topics in magnetic resonance covering NMR, EPR, hyperpolarisation,...
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Nickel and Palladium Allyl-Triazenide Precursors for the Generation of Supported Nanoparticles (Christophe Copéret and co-workers) •
onlinelibrary.wiley.com
Dinuclear allyl-triazenide complexes of Ni and Pd were synthesized and investigated for their properties in Surface Organometallic Chemistry. Both complexes reacted with the surface OH groups of the...
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NMR Signatures of Transition-Metal Nuclei: From Local Environments and Electronic Structures to Reactivity Descriptors in Molecular and Heterogeneous Catalysis | JACS Au
pubs.acs.org
This Perspective summarizes the current state of the art in understanding the local environments of metal sites across homogeneous and heterogeneous catalysts by means of solid-state nuclear magnetic...
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Thanks to the Software for Chemistry & Materials (SCM) for highlighting our recent work on Pt SAC in their website. Adf computations were used to translate the SACs NMR fingerprints into chemical information on their coordination environments. https://t.co/Ql4SlmuK5w
scm.com
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Thanks to Tim Wogan for the report on our study @ChemistryWorld
https://t.co/z7fHE87fkJ
@catalysis_eth @CoperetGroup @sharonjmitchell @NCCR_Catalysis
chemistryworld.com
Research could improve single-atom catalyst design
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Tellurium flips the script - transforming abundant transition metals into low-temp RWGS catalysts rivaling platinum. CoTe & NiTe hit near-equilibrium CO₂ conversion with >98% CO selectivity. @J_A_C_S
https://t.co/Z4TraSqT85
pubs.acs.org
The reverse water–gas shift (RWGS) reaction is a pivotal industrial process that is central to CO2 utilization. It typically relies on rare platinum group metal catalysts and high temperatures (over...
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Doping the alumina-supported PtGa propane dehydrogenation catalyst with Si increases its stability, as a result of a change in the coking mechanism and carbon dynamics. Read our work in @J_A_C_S
https://t.co/uDgX3FrP3N
pubs.acs.org
The exploitation of shale gas has stimulated the use of on-purpose propane dehydrogenation (PDH) technologies. These technologies rely on continuous and rapid catalyst regeneration to maintain high...
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Surface Enhanced Nuclear Magnetic Resonance Spectroscopy at Solid–Liquid Interfaces Using Overhauser Dynamic Nuclear Polarization | Journal of the American Chemical Society @EPFL @EPFL_en
pubs.acs.org
While solid–liquid interfaces are ubiquitous, detecting the associated surface sites under ambient conditions remains a grand challenge. Here, we demonstrate an approach to efficiently enhance the...
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DNP NMR at solid-liquid interfaces is now possible! In this collaborative work we applied Overhauser DNP to a supported catalyst to gain molecular understanding of interfacial chemistry. @J_A_C_S @EPFL
https://t.co/oj1bXhcuQh
pubs.acs.org
While solid–liquid interfaces are ubiquitous, detecting the associated surface sites under ambient conditions remains a grand challenge. Here, we demonstrate an approach to efficiently enhance the...
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Nature research paper: Coordination environments of Pt single-atom catalysts from NMR signatures https://t.co/7zNdAtra3M
nature.com
Nature - This study presents a nuclear magnetic resonance-based method to determine local structure and bonding of Pt single-atom catalysts.
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This study has been possible thanks to an amazing set of collaborators at ETH Zurich (@catalysis_eth), @crmn_lyon and @AarhusUni_int , participating in the @NCCR_Catalysis and a joint ANR-@snsf_ch research program.
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Are Single Atom Catalysts (SACs) Single-Sites? Not really according to our latest development in 195Pt ssNMR, now out in @Nature. Our methodology enables to understand the nature and distribution of the coordination environment of Pt SACs!
nature.com
Nature - This study presents a nuclear magnetic resonance-based method to determine local structure and bonding of Pt single-atom catalysts.
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Congratulations to Yuya, our synthesis-sensei and NCS analysis champion for the successful defence of his PhD thesis. He studied spectroscopic descriptors for reactivity of olefin conversion catalysts.
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13C Chemical Shift of N-Heterocyclic Carbenes in Coinage Metal(I) Complexes and Clusters: trans-Influence and Spin–Orbit Coupling | Journal of the American Chemical Society @ETH_DCHAB @ETH_en @nmr900
pubs.acs.org
N-Heterocyclic carbenes (NHCs) are versatile ligands in organometallic chemistry, prized for their strong σ-donating and tunable electronic properties. They are used to stabilize a wide range of...
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