Facile preparation of RuO2/CNT catalyst by a homogenous oxidation precipitation method and its catalytic performance

被引：107

作者：

Fu, Xiaobo ^{[1
]}

Yu, Hao ^{[1
]}

Peng, Feng ^{[1
]}

Wang, Hongjuan ^{[1
]}

Qian, Yu ^{[1
]}

机构：

[1] S China Univ Technol, Sch Chem & Energy Engn, Guangzhou 510640, Peoples R China

来源：

APPLIED CATALYSIS A-GENERAL | 2007年 / 321卷 / 02期

关键词：

carbon nanotubes; ruthenium oxide catalyst; nanoparticles; aerobic oxidation; alcohols; CARBON NANOTUBES; RUTHENIUM OXIDE; ELECTROCHEMICAL CHARACTERIZATION; SELECTIVE OXIDATION; SURFACE; ALCOHOLS; NANOCOMPOSITES; NANOPARTICLES; COMPOSITES; REACTIVITY;

D O I：

10.1016/j.apcata.2007.02.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ruthenium(IV) oxide (RuO2) nanoparticles supported by herringbone carbon nanotubes (CNTs) were synthesized by a homogenous-oxidation-precipitation (HOP) method with H2O2. The morphology and composition of the resulting composite were characterized by TEM, XPS, XRD, TG and TPR. CNTs exhibited the better ability to induce the formation of highly dispersed nanoparticles, compared with common used supports, such as gamma-Al2O3 and activated carbon. Amorphous hydrous RuO2 nanoparticles uniformly dispersed on the surface of CNTs. The average size of RuO2 was significantly reduced to 1.35 nm. This result leads to the high activity and excellent selectivity, which has been demonstrated in the aerobic oxidation of alcohols to aldehydes or ketones. The new preparation technique of CNT-supported oxide nanoparticles reported in this paper has great potential for various catalytic applications. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：190 / 197

页数：8

共 47 条

[1] Work functions and surface functional groups of multiwall carbon nanotubes [J].

Ago, H ;

Kugler, T ;

Cacialli, F ;

Salaneck, WR ;

Shaffer, MSP ;

Windle, AH ;

Friend, RH .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (38) :8116-8121

[2] CAPILLARITY-INDUCED FILLING OF CARBON NANOTUBES [J].

AJAYAN, PM ;

IIJIMA, S .

NATURE, 1993, 361 (6410) :333-334

[3] Enhanced supercapacitance of multiwalled carbon nanotubes functionalized with ruthenium oxide [J].

Arabale, G ;

Wagh, D ;

Kulkarni, M ;

Mulla, IS ;

Vernekar, SP ;

Vijayamohanan, K ;

Rao, AM .

CHEMICAL PHYSICS LETTERS, 2003, 376 (1-2) :207-213

[4] Analysis of the electrochemical characteristics of a direct methanol fuel cell based on a Pt-Ru/C anode catalyst [J].

Arico, AS ;

Creti, P ;

Kim, H ;

Mantegna, R ;

Giordano, N ;

Antonucci, V .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (12) :3950-3959

[5] TiO2 nanotube-supported ruthenium(III) hydrated oxide:: A highly active catalyst for selective oxidation of alcohols by oxygen [J].

Bavykin, DV ;

Lapkin, AA ;

Plucinski, PK ;

Friedrich, JM ;

Walsh, FC .

JOURNAL OF CATALYSIS, 2005, 235 (01) :10-17

[6] Carbon nanotubes: Synthesis, integration, and properties [J].

Dai, HJ .

ACCOUNTS OF CHEMICAL RESEARCH, 2002, 35 (12) :1035-1044

[7] Electrical conductivity of individual carbon nanotubes [J].

Ebbesen, TW ;

Lezec, HJ ;

Hiura, H ;

Bennett, JW ;

Ghaemi, HF ;

Thio, T .

NATURE, 1996, 382 (6586) :54-56

[8] CHEMISTRY OF THE FULLERENES - THE MANIFESTATION OF STRAIN IN A CLASS OF CONTINUOUS AROMATIC-MOLECULES [J].

HADDON, RC .

SCIENCE, 1993, 261 (5128) :1545-1550

[9] OPENING AND PURIFICATION OF CARBON NANOTUBES IN HIGH YIELDS [J].

HIURA, H ;

EBBESEN, TW ;

TANIGAKI, K .

ADVANCED MATERIALS, 1995, 7 (03) :275-276

[10] HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].

IIJIMA, S .

NATURE, 1991, 354 (6348) :56-58

← 1 2 3 4 5 →