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Novel modification of a macroporous stainless steel tube by electroless Ni plating for use as a substrate for preparation of nanoporous carbon membranes / B. S. Liu in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9007-9015 Titre : Novel modification of a macroporous stainless steel tube by electroless Ni plating for use as a substrate for preparation of nanoporous carbon membranes Type de document : texte imprimé Auteurs : B. S. Liu, Auteur ; Y. H. Guo, Auteur ; F. Yuan, Auteur Année de publication : 2012 Article en page(s) : pp. 9007-9015 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Inorganic  membrane  Preparation  Stainless  steel  Macroporosity Résumé : Nanoporous carbon (NPC)/Ni-P composite membranes were prepared on electroless Ni-plating-modified porous stainless steel tubes (PSSTs) by carbonizing polyimide or cellulose acetate precursors at 700 °C, in a nitrogen atmosphere. The performance of the membranes was evaluated by single-gas permeation and binary-gas mixture separation. The effects of the substrate with or without modification on gas permeation were studied, and the diffusion mechanism of the gases through the membranes was analyzed. The real separation factors of gas mixtures through the NPC/Ni-P composite membranes were much higher than those through the nanoporous carbon membranes (NPCMs) prepared on the unmodified substrate, especially those for H2/CH4 and H2/CO2. The weight loss rate of polymer precursors was investigated by TG/DTG. The specific surface areas of the membranes and the crystallization of the Ni-P alloy layer were characterized by means of the BET and DSC techniques, respectively, indicating that localized electroless Ni plating can reduce the pore diameter of PSST effectively and regulate the pore size distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107458 [article] Novel modification of a macroporous stainless steel tube by electroless Ni plating for use as a substrate for preparation of nanoporous carbon membranes [texte imprimé] / B. S. Liu, Auteur ; Y. H. Guo, Auteur ; F. Yuan, Auteur . - 2012 . - pp. 9007-9015. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 9007-9015 Mots-clés : Inorganic  membrane  Preparation  Stainless  steel  Macroporosity Résumé : Nanoporous carbon (NPC)/Ni-P composite membranes were prepared on electroless Ni-plating-modified porous stainless steel tubes (PSSTs) by carbonizing polyimide or cellulose acetate precursors at 700 °C, in a nitrogen atmosphere. The performance of the membranes was evaluated by single-gas permeation and binary-gas mixture separation. The effects of the substrate with or without modification on gas permeation were studied, and the diffusion mechanism of the gases through the membranes was analyzed. The real separation factors of gas mixtures through the NPC/Ni-P composite membranes were much higher than those through the nanoporous carbon membranes (NPCMs) prepared on the unmodified substrate, especially those for H2/CH4 and H2/CO2. The weight loss rate of polymer precursors was investigated by TG/DTG. The specific surface areas of the membranes and the crystallization of the Ni-P alloy layer were characterized by means of the BET and DSC techniques, respectively, indicating that localized electroless Ni plating can reduce the pore diameter of PSST effectively and regulate the pore size distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107458