Publications associées à Coordinence

Micromechanical controls of mixed-mode anticrack nucleation in porous solids: application to snow failure

Johan Alexandre Philippe Gaume, Henning Löwe, Jonas Ritter

Porous cohesive materials can fail and collapse under compressive stresses. This mechanical behavior is generally referred to as anticrack and in snow, it is at the origin of catastrophic avalanches. In this study, we investigate how the microstructure of ...

2019

Fine-tuning the coordination atoms of copper redox mediators: an effective strategy for boosting the photovoltage of dye-sensitized solar cells

Chong Liu, Ulf Anders Hagfeldt, Mei Wang

Natural systems have marvelously utilized copper complexes featuring sulfur-coordinating ligands, known as blue copper proteins, as efficient electron-transfer mediators in biological processes. Copper complexes with sulfur-coordinating ligands have been a ...

ROYAL SOC CHEMISTRY2019

Divergent Synthesis of Densely Substituted Arenes and Pyridines via Cyclotrimerization Reactions of Alkynyl Triazenes

Kay Severin, Nicolai Cramer, Carl Thomas Bormann, Florian Gérald Abela, Jin Fay Tan, Frederick Mark Chadwick

Densely substituted fused aromatic triazenes can be prepared by [2 + 2 + 2] cyclotrimerization reactions of 1-alkynyl triazenes. The Cp*Ru-catalyzed cyclization proceeds well with both simple alkynyl triazenes and tethered 1-diynyl triazenes. Attractively, ...

2019

Local structural investigation of hafnia-zirconia polymorphs in powders and thin films by X-ray absorption spectroscopy

Reinis Ignatans

Despite increasing attention for the recently found ferro- and antiferroelectric properties, the polymorphism in hafnia- and zirconia-based thin films is still not sufficiently understood. In the present work, we show that it is important to have a good qu ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Stability of metallo-porphyrin networks under oxygen reduction and evolution conditions in alkaline media

Klaus Kern, Jan Gui-Hyon Dreiser, Markus Etzkorn, Claudius Morchutt, Sebastian Stepanow, Benjamin Wurster

Transition metal atoms stabilised by organic ligands or as oxides exhibit promising catalytic activity for the electrocatalytic reduction and evolution of oxygen. Built-up from earth-abundant elements, they offer affordable alternatives to precious-metal b ...

2019

Crystal field, ligand field, and interorbital effects in two-dimensional transition metal dichalcogenides across the periodic table

Oleg Yazyev, Diego José Pasquier

Two-dimensional (2D) transition metal dichalcogenides (TMDs) exist in two polymorphs, referred to as 1T and 1H, depending on the coordination sphere of the transition metal atom. The broken octahedral and trigonal prismatic symmetries lead to different cry ...

IOP PUBLISHING LTD2019

Crowd Dynamics in Internal Crowdsourcing: Insights From Challenges in Management Higher Education

Christopher Tucci, Gianluigi Viscusi

This article aims to study crowd dynamics in small teams. In particular we are specifically interested to internal crowdsourcing as a venue for innovation and new ideas production, questioning the difference with regard to other cooperative models based, e ...

2019

Metal Coordination Complexes as Redox Mediators in Regenerative Dye-Sensitized Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Nikolaos Vlachopoulos, Ulf Anders Hagfeldt, Yasemin Saygili, Marko Stojanovic, Natalie Flores Diaz

Dye-sensitized solar cells (DSSCs) have attracted a substantial interest in the last 30 years for the conversion of solar power to electricity. An important component is the redox mediator effecting the transport of charge between the photoelectrode and th ...

2019

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Coordinence

Micromechanical controls of mixed-mode anticrack nucleation in porous solids: application to snow failure

Fine-tuning the coordination atoms of copper redox mediators: an effective strategy for boosting the photovoltage of dye-sensitized solar cells

Divergent Synthesis of Densely Substituted Arenes and Pyridines via Cyclotrimerization Reactions of Alkynyl Triazenes

Molecular nanostructures based on polyfunctional clathrochelate complexes

Local structural investigation of hafnia-zirconia polymorphs in powders and thin films by X-ray absorption spectroscopy

Stability of metallo-porphyrin networks under oxygen reduction and evolution conditions in alkaline media

Crystal field, ligand field, and interorbital effects in two-dimensional transition metal dichalcogenides across the periodic table

From structure to application: studies on adenine-, pyrene- and lanthanide-based metal-organic frameworks

Crowd Dynamics in Internal Crowdsourcing: Insights From Challenges in Management Higher Education

Metal Coordination Complexes as Redox Mediators in Regenerative Dye-Sensitized Solar Cells

Graph Chatbot

Chattez avec Graph Search

Crowd Dynamics in Internal Crowdsourcing: Insights From Challenges in Management Higher Education

Local structural investigation of hafnia-zirconia polymorphs in powders and thin films by X-ray absorption spectroscopy

Molecular nanostructures based on polyfunctional clathrochelate complexes

Fine-tuning the coordination atoms of copper redox mediators: an effective strategy for boosting the photovoltage of dye-sensitized solar cells

From structure to application: studies on adenine-, pyrene- and lanthanide-based metal-organic frameworks

Micromechanical controls of mixed-mode anticrack nucleation in porous solids: application to snow failure

Divergent Synthesis of Densely Substituted Arenes and Pyridines via Cyclotrimerization Reactions of Alkynyl Triazenes

Crystal field, ligand field, and interorbital effects in two-dimensional transition metal dichalcogenides across the periodic table

Stability of metallo-porphyrin networks under oxygen reduction and evolution conditions in alkaline media

Metal Coordination Complexes as Redox Mediators in Regenerative Dye-Sensitized Solar Cells