Publications de Laura Piveteau

Carbamate-bond breaking on bulk oxides realizes highly efficient polyurethane depolymerization

Paul Joseph Dyson, Laura Piveteau, Xinbang Wu, Roland Christopher Turnell-Ritson

Springer Science and Business Media LLC2025

Polycondensation as a Universal Method for Preparing High-density Single-atom Catalyst Libraries

Paul Joseph Dyson, Mounir Driss Mensi, Pascal Miéville, Laura Piveteau, Xunhui Wang, Xinbang Wu, Daniel Ortiz Trujillo, Miyeon Chang, Ariana Serban, Timo Markus Oskar Felder

Single-atom catalysts (SACs) present a promising subclass of classic heterogeneous catalysts by maximizing metal dispersion and enhancing efficiency. Although high-density SACs (HD-SACs) are reported, their synthesis is typically constrained to specific me ...

WILEY-V C H VERLAG GMBH2025

Selective light olefin synthesis with high ethylene abundance via CO2 hydrogenation over (Ga-In)2O3/SSZ-13 catalysts

Andreas Züttel, Mounir Driss Mensi, Laura Piveteau

Direct light olefin synthesis from CO2 hydrogenation is a new pathway to decarbonize the chemical industry. Inspired by the promising catalytic activity of Ga2O3-based catalysts in alkane dehydrogenation, this study reveals that optimizing Ga content in th ...

2025

Dynamics of hydrogen-bonded end groups in bulk polymers revealed by solid-state NMR spectroscopy relaxation dispersion experiments

John Christopher Plummer, Holger Frauenrath, Laura Piveteau

The dynamic nature of supramolecular networks of telechelic polymers offers new avenues for the design of novel materials with enhanced melt strength and extensibility, increased energy at break, or self-healing properties. However, monitoring the kinetics ...

2025

From Chalcogen Bonding to S-π Interactions in Hybrid Perovskite Photovoltaics

Ursula Röthlisberger, Laura Piveteau, Virginia Carnevali, Mathias Dankl, Nikolaos Lempesis, Lorenzo Agosta, Dominik Józef Kubicki

The stability of hybrid organic-inorganic halide perovskite semiconductors remains a significant obstacle to their application in photovoltaics. To this end, the use of low-dimensional (LD) perovskites, which incorporate hydrophobic organic moieties, provi ...

WILEY2024

Metal−Solvent Complex Formation at the Surface of InP Colloidal Quantum Dots

Laura Piveteau

Published by American Chemical Society.The surface chemistry of colloidal semiconductor nanocrystals (QDs) profoundly influences their physical and chemical attributes. The insulating organic shell ensuring colloidal stability impedes charge transfer, thus ...

2024

Radiation Chemistry Reveals the Reaction Mechanisms Involved in the Reduction of Vinylene Carbonate in the Solid Electrolyte Interphase of Lithium-Ion Batteries

Laura Piveteau, Daniel Ortiz Trujillo

A safe and efficient lithium-ion battery requires including an additive in the electrolyte. Among the additives used, vinylene carbonate (VC) is particularly interesting, because it leads to the formation of a stable and protective solid electrolyte interp ...

2024

Disorder and Halide Distributions in Cesium Lead Halide Nanocrystals as Seen by Colloidal 133Cs Nuclear Magnetic Resonance Spectroscopy

Laura Piveteau, Nuri Yazdani

Colloidal nuclear magnetic resonance (cNMR) spectroscopy on inorganic cesium lead halide nanocrystals (CsPbX3 NCs) is found to serve for noninvasive characterization and quantification of disorder within these structurally soft and labile particles. In par ...

Amer Chemical Soc2024

Interfacial Modulation through Mixed-Dimensional Heterostructures for Efficient and Hole Conductor-Free Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Felix Thomas Eickemeyer, Jovana Milic, Laura Piveteau, Hong Zhang, Anwar Qasem M Alanazi

Perovskite solar cells have led the new surge of solar energy research. However, their instability is a pressing issue mostly attributed to the perovskite interface with charge-selective transport layers. In this work, diethylammonium iodide (DEAI) surface ...

Wiley-V C H Verlag Gmbh2023

Vanadium complexes with N-heterocyclic vinylidene ligands

Rosario Scopelliti, Kay Severin, Farzaneh Fadaei Tirani, Laura Piveteau, Bastiaan Kooij, Zhaowen Dong, Paul Varava

The preparation and the structural characterization of vanadium complexes with terminal and bridging N-heterocyclic vinylidene ligands is reported. The synthesis of the complexes was enabled by utilization of diazoolefins as ligand precursors. Structural d ...

Royal Society of Chemistry2022