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Hydrodechlorination of carbon tetrachloride was performed at atmospheric pressure over Pd and Pt catalysts supported on various inorganic oxides (Al₂O₃, MgO, CeO₂) and obtained from different organometallic precursors (Pd(acac)₂, [Pd(C₃H₅)Cl]₂, Pt(acac)₂ and Pt(CH₃CN)₂Cl₂. Generally, Pd-based catalysts show low conversion levels and high selectivity to C₁–C₇₊ hydrocarbons with a distribution that fits a typical Schulz–Flory mechanism for alkyl polymerization. On the other hand, Pt catalysts show high and stable activity, the major products are CHCl₃ and in lesser extent methane. Catalytic performances depend on the stability, under reaction conditions, of the metal phase, that could be related to the nature of chlorine species pre-adsorbed on catalysts. Owning to their superior catalytic performances, the structural modifications of Pt catalysts under reaction conditions were characterized by EXAFS …