Platinum nanoparticles supported on nitrogen-containing carbon nanofibers

被引：32
|
作者：
Podyacheva, O. Yu. [1 ]
Ismagilov, Z. R. [1 ]
Boronin, A. I. [1 ,2 ]
Kibis, L. S. [1 ]
Slavinskaya, E. M. [1 ]
Noskov, A. S. [1 ]
Shikina, N. V. [1 ]
Ushakov, V. A. [1 ]
Ischenko, A. V. [1 ]
机构：
[1] Boreskov Inst Catalysis SB RAS, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
CATALYSIS TODAY | 2012年 / 186卷 / 01期
关键词：
Nitrogen-containing carbon nanofibers; Platinum; CO oxidation; SELECTIVE OXIDATION; NANOTUBES; CO; CLUSTERS; CATALYST;
D O I：
10.1016/j.cattod.2011.08.031
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Platinum nanoparticles supported on nitrogen-containing carbon nanofibers (10% Pt/N-CNFs, [N]=0-7.5 wt.%) were synthesized and investigated. X-ray diffraction (XRD) analysis and transmission electron microscopy (TEM) demonstrated the formation of 2-9 nm platinum nanoparticles on the N-CNF surface. Platinum nanoparticles were found to be in a metal state experiencing a strong effect of N-CNFs. Testing of catalytic activity in CO oxidation showed that a nitrogen content in N-CNFs exceeding 3.4 wt.% substantially enhances the low-temperature activity characterized by a reaction ignition temperature of ca. 60 degrees C; however, the enhancement of catalytic activity is non-monotonic with respect to nitrogen concentration in N-CNFs. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码：42 / 47
页数：6
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