Experimental investigation of the interaction of dimethyl sulfide/ethyl mercaptan with nano-manganese dioxide / Jie He in Industrial & engineering chemistry research, Vol. 51 N° 49 (Décembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15912–15917 Titre : Experimental investigation of the interaction of dimethyl sulfide/ethyl mercaptan with nano-manganese dioxide Type de document : texte imprimé Auteurs : Jie He, Auteur ; Xiaotian Liu, Auteur ; Lin Li, Auteur Année de publication : 2013 Article en page(s) : pp. 15912–15917 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Nano manganese dioxide Résumé : Nano-MnO2 was prepared by a sol–gel technology, and the structure was characterized by means of powder X-ray diffraction (XRD). The interaction of dimethyl sulfide (DMS) or ethyl mercaptan (EM) with the as-prepared MnO2 was investigated at ambient temperature with Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and laser Raman spectroscopy (LRS). The results showed that DMS and EM undergo different interactions with the surface of MnO2. The interaction of DMS and MnO2 bring about carbon–sulfur bond cleavage and the oxidation of C. However, there might be hydrogen bonding between EM and MnO2 in addition to chemical bonding, which results in a weaker S–H bond in the EM molecule, so that EM is easily oxidized to sulfonates and sulfates. Tentative interaction mechanisms for DMS and EM on MnO2 are suggested. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302097x [article] Experimental investigation of the interaction of dimethyl sulfide/ethyl mercaptan with nano-manganese dioxide [texte imprimé] / Jie He, Auteur ; Xiaotian Liu, Auteur ; Lin Li, Auteur . - 2013 . - pp. 15912–15917. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15912–15917 Mots-clés : Nano manganese dioxide Résumé : Nano-MnO2 was prepared by a sol–gel technology, and the structure was characterized by means of powder X-ray diffraction (XRD). The interaction of dimethyl sulfide (DMS) or ethyl mercaptan (EM) with the as-prepared MnO2 was investigated at ambient temperature with Fourier transform infrared (FT-IR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and laser Raman spectroscopy (LRS). The results showed that DMS and EM undergo different interactions with the surface of MnO2. The interaction of DMS and MnO2 bring about carbon–sulfur bond cleavage and the oxidation of C. However, there might be hydrogen bonding between EM and MnO2 in addition to chemical bonding, which results in a weaker S–H bond in the EM molecule, so that EM is easily oxidized to sulfonates and sulfates. Tentative interaction mechanisms for DMS and EM on MnO2 are suggested. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie302097x

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