Soft Templating and Disorder in an Applied 1D Cobalt Coordination Polymer Electrocatalyst

Disordered materials with resilient and soft-templated functional units bear the potential to fill the pipeline of robust catalysts for renewable energy storage. However, for novel materials lacking long-range order, the ability to discern local structure with atomic resolution still pushes the boundaries of current analytical and modeling approaches. We introduce a two-pillar strategy to monitor the formation and unravel the structure of the first disordered onedimensional cobalt coordination polymer catalyst, Co-dppeO2. This target material excels through proven high performance in commercial alkaline electrolyzers and organic transformations. We demonstrate that the key architecture behind this activity is the unconventional embedding of hydrated {H2O-Co2(OH)2-OH2} edge-site motifs, nested into a flexible organic matrix of highly oxidized and bridging hydrophobic dppeO2 ligands. Our combination of in situ spectroscopy and computational modeling of X-ray scattering and absorption spectra, backed with complementary experimental techniques, holds the key to understanding the atomic-range structure of important disordered materials

Des paradoxes du contrôle d'état sur l'industrie de la sécurité privée : la légitimation et la naissance d'un complexe d'organismes policiers ?

Hoogenboom A.B., Mooré L. Des paradoxes du contrôle d'état sur l'industrie de la sécurité privée : la légitimation et la naissance d'un complexe d'organismes policiers ?. In: Déviance et société. 1988 - Vol. 12 - N°4. pp. 391-400