氧化钴和氮掺杂碳纳米管纳米复合物的催化与容量性质(英文)  

Catalytic and capacity properties of nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers

作　　者：Olga Yu.Podyacheva Andrei I.Stadnichenko Svetlana A.Yashnik Olga A.Stonkus Elena M.Slavinskaya Andrei I.Boronin Andrei V.Puzynin Zinfer R.Ismagilov 

机构地区：[1]Boreskov Institute of Catalysis, Pr.Akademika Lavrentieva 5, Novosibirsk 630090, Russia [2]Novosibirsk State University, Ul.Pirogova 2, Novosibirsk, 630090, Russia [3]Institute of Coal Chemistry and Material Science, Pr.Sovetskiy 18, Kemerovo 650000, Russia

出　　处：《催化学报》2014年第6期960-969,共10页

基　　金：supported by RFBR Grant 12-03-01091-a, Presidium RAS (Project 24.51);Presidium SB RAS (Project 36, Project 75)

摘　　要：The nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers (N-CNFs) with cobalt oxide contents of 10–90 wt% were examined as catalysts in the CO oxidation and supercapacity electrodes. Depending on Со3О4 content, such nanocomposites have different morphologies of cobalt oxide nanoparticles, distributions over the bulk, and ratios of Со3+/Co2+ cations. The 90%Со3О4-N-CNFs nanocomposite showed the best activity because of the increased concentration of defects in N-CNFs. The capacitance of electrodes containing 10%Со3О4-N-CNFs was 95 F/g, which is 1.7 times higher than electrodes made from N-CNFs.The nanocomposites based on cobalt oxide and nitrogen-doped carbon nanofibers （N-CNFs） with cobalt oxide contents of 10-90 wt% were examined as catalysts in the CO oxidation and superca- pacity electrodes. Depending on C0304 content, such nanocomposites have different morphologies of cobalt oxide nanoparticles, distributions over the bulk, and ratios of CO3＋/Co2＋ cations. The 90%Co3O4-N-CNFs nanocomposite showed the best activity because of the increased concentration of defects in N-CNFs. The capacitance of electrodes containing 10%Co3O4-N-CNFs was 95 F/g, which is 1.7 times higher than electrodes made from N-CNFs.

关 键 词：纳米复合材料 碳纳米纤维 氧化催化剂 氧化物 钴含量 氮掺杂 特性 容量 

分 类 号：O643.36[理学—物理化学]