Synthesis and characterization of mechanically activated bulky molybdenum sulphide catalysts

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• 作者：Taisia Feduschak^a ; ^{taina@ipc.tsc.ru" class="auth_mail" title="E-mail the corresponding author} ; Akim Akimov^a ; ^{zerobox70@mail.ru" class="auth_mail" title="E-mail the corresponding author} ; Maxim Morozov^a ; ^{fr0stm4n@yandex.ru" class="auth_mail" title="E-mail the corresponding author} ; Mikhail Uymin^b ; ^{uimin@imp.uran.ru" class="auth_mail" title="E-mail the corresponding author} ; Vladimir Zaikovskii^c ; ^d ; ^{viz@catalysis.ru" class="auth_mail" title="E-mail the corresponding author} ; Igor Prosvirin^c ; ^d ; ^{prosvirin@catalysis.ru" class="auth_mail" title="E-mail the corresponding author} ; Alexander Vosmerikov^a ; ^{pika@ipc.tsc.ru" class="auth_mail" title="E-mail the corresponding author} ; Sergey Zhuravkov^e ; ^{zhursp@yandex.ru" class="auth_mail" title="E-mail the corresponding author} ; Vitalyi Vlasov^e ; ^{vlvitan75@mail.ru" class="auth_mail" title="E-mail the corresponding author} ; Victor Kogan^f ; ^{vmk@ioc.ac.ru" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Mechanical activation (MA) ; Molybdenum disulphide ; Hydrodesulphurization (HDS)
• 刊名：Comptes Rendus Chimie
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：19
• 期：10
• 页码：1315-1325
• 全文大小：3018 K

文摘

Bulky catalysts on the basis of MoS₂ nano-crystallites have been obtained for the first time from commercial molybdenite in one-step synthesis using mechanical-chemical treatment with small additives of polar liquids. Physical and chemical properties of the synthesized catalysts were studied using sedimentation analysis, XRD, XPS, TEM and thermal analysis. The catalytic activity of the catalysts was examined in the course of dibenzothiophene hydrodesulphurization followed by the GC–MS analysis of the reaction products. Correlations between the catalytic activity and the methanol quantity added in the course of mechanical-chemical activation were established. The pathways of dibenzothiophene hydrodesulfurization reactions over the synthesized catalysts were proposed.