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Updated: Aug 31, 2025

Preparation of Authigenic Pyrite from Methane-bearing Sediments for In Situ Sulfur Isotope Analysis Using SIMS
Published on: August 31, 2017
Energetics of Sulfur-Carbon Interaction
Marie-Vanessa Coulet1, Loïc Gourmellen1, Renaud Denoyel1
1Aix - Marseille Univ and CNRS, MADIREL - UMR7246, Campus de St Jérôme, 13013, Marseille, France.
Abstract:
The energetics of sulfur-carbon interaction are studied using thermo-desorption and immersion microcalorimetry experiments. Sulfur is incorporated in meso- and microporous carbons by impregnation either from the liquid phase or the vapor phase. Varying the temperature of impregnation enables to fill preferentially microporous domains (vapor impregnation) or both micro-meso-macro domains (liquid impregnation). The three carbons lead to similar immersion enthalpies per unit area for liquid sulfur. This suggests that they possess similar surface-liquid interactions and that liquid sulfur, below the polymerization temperature, wets the whole surface accessible to nitrogen.
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