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18 résultats avec le mot-clé: 'study of pt with the pt pt reaction'

Influence of Pt particle size and reaction phase on the photocatalytic performances of ultradispersed Pt/TiO2 catalysts for hydrogen evolution

Influence of Pt particle size and reaction phase on the photocatalytic performances of ultradispersed Pt/TiO 2 catalysts for hydrogen evolution..

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2022
est celui de la méthode du tri par insertion

3 Remplissage 2 pts • Parcours 1 pt • Détermination de la valeur 1 pt 4 Recherche des chemins 0,75 pt 5 Remplissage du fichier 0,75 pt 6 Affichage 1 pt 7 Divers TDO+mode de passage

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2022
Controlled synthesis and characterization of Ru-core-Pt-shell bimetallic nanoparticles

A redox-transmetalation reaction occurred between the preformed Ru clusters (step 1), and added Pt ions (step 2) will generate Ru core - Pt shell nanoparticles during.. the

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2021
Exo de Bac

Chaque bonne réponse est notée 0.75 pt, chaque mauvaise –0.5 pt et 0 pt si vous choisissez de ne pas répondre..

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2022
Proposition du corrigé

0,5 pt Pour l’expression avec carré au numérateur... 0,5 pt Pour

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2022
EP1 « Techniques esthétiques » Grille d’évaluation

- Maîtrise des techniques utilisant des instruments (1,5 pt) - Utilisation rationnelle des produits, matériels (1 pt) - Habileté du geste (0,5 pt). - Durée d’exécution adaptée

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2022
Small step graphs of cell data versus composition for ccp solid-solution binary alloys: application to the (Pt,Ir), (Pt,Re) and (Pt,Ru) systems

Small step graphs of cell data versus composition for ccp solid-solution binary alloys: Application to the (Pt,Ir), (Pt,Re) and (Pt,Ru) systems..

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2021
Classes Préparatoires PTSI / PT - PT*

Un vœu multiple permet de choisir la ou les formations souhaitées parmi un ensemble de formations qui sont regroupées par type, spécialité ou mention (ex : PTSI…. Un vœu

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2022
Development of new catalysts for proton exchange membrane fuel cells (PEMFCs)

It is structured around three axes: (i) the synthesis and characterization of catalysts constituted of Pt nanoparticles deposited on carbon xerogel (Pt/CX catalysts) with high

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2021
Merci de vulgariser ce message afin de barrer la voie au diabète dans notre village.

0,25 pt 0,5 pt 0,5 pt Maitrise des connaissances Les quatre catégories d'aliments simples organiques énumérées sont scientifiquement connues, ainsi que leurs rôles. 2 pts Cohérence

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2022
PT

Le bloc 4 est exclusivement étudié de manière expérimentale et aborde la question du traitement numérique du signal dans le prolongement du programme de première

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2021
Synthesis and characterization of Pt-Co/carbon xerogel electrocatalysts for Proton Exchange Membrane Fuel Cells (PEMFC)

Several pathways are currently being studied to synthesize Pt-Co alloy particles/CX, Co-Pt core-shell particles/CX and Pt-Co hollow particles/CX (Fig. The first results indicate

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Championnat de France Junior Gréco 3/4 mai Nice (PACA) 62 participant(e)s

1 ABT Bryan Châtenois ALS 2 GEISSLER Eric Maizières les Metz LOR5. Finale Pt Clt

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2022
Simultaneous in situ monitoring of surface and gas species and surface properties by modulation excitation polarization-modulation infrared reflection-absorption spectroscopy: CO oxidation over Pt film

14,15 Two active phases were observed in an O 2 -rich atmosphere; one phase where reaction occurs on Pt terraces with a low activity, and the other phase with a high activity where

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2022
NOx storage capacity, SO2 resistance and regeneration of Pt/(Ba)/CeZr model catalysts for NOx-trap system.

NOx storage capacity, sulphur resistance and regeneration of Pt/CeZr and Pt/Ba/CeZr catalysts were studied and compared to a Pt/Ba/Al model catalyst... Both NO

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2021
Deposition of clusters and nanoparticles onto boron-doped diamond electrodes for electrocatalysis

858.. 20B), water discharge is activated on Pt, and therefore free Pt catalytic sites are available for methanol dehydrogenation. This step is only possible on Pt sites, so that

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2021
Influence of Pt as Mn diffusion barrier on the distribution of blocking temperature in Co/(Pt)/IrMn exchange biased layers

Influence of Pt as Mn diffusion barrier on the distribution of blocking temperature in Co/(Pt)/IrMn exchange biased layers... Influence of Pt as Mn diffusion barrier on the

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2021
The role of the WOx ad-component to Pt and PtRu catalysts in the electrochemical CH3OH oxidation reaction

estimation using the average Pt and PtRu alloy particle size obtained from the XRD data are very similar for the Pt/C and PtWO x /C catalysts. However, the Pt

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2021

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