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MnS clusters were prepared by treating laumontite zeolite with 0.1N aqueous manganese nitrate solutions at 296K (pH 5.8), using a solid/liquid ratio of 1/50, followed by a sulfidation process with H 2 S, at 350K, during 12h. XRD and magnetic resonance measurements proved that the clusters are formed inside the zeolite channels. Examination of SEM revealed that no disintegration of zeolite...
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