The influence of the nature of the metal on the performance of cerium oxide supported catalysts in the partial oxidation of ethanol

被引：59

作者：

Mattos, LV ^{[1
]}

Noronha, FB ^{[1
]}

机构：

[1] Inst Nacl Tecnol, BR-20081312 Rio De Janeiro, Brazil

来源：

JOURNAL OF POWER SOURCES | 2005年 / 152卷 / 01期

关键词：

fuel cell; partial oxidation of ethanol; hydrogen production; Co/CeO2; catalyst; Pd/CeO2; Pt/CeO2;

D O I：

10.1016/j.jpowsour.2004.12.052

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：

This work studied the effect of the nature of the metal on the performance of Co/CeO2, Pd/CeO2 and Pt/CeO2 catalysts in the partial oxidation of ethanol. Infrared spectroscopy of adsorbed ethanol and temperature programmed desorption of ethanol were performed in order to establish the reaction mechanism. Catalytic experiments revealed that the product distribution is strongly affected by the nature of the metal. Acetaldehyde was practically the only product formed on a Co/Ce\O-2 catalyst while methane was also produced on Pt/CeO2 and Pd/CeO2 catalysts. These results were explained through a reaction mechanism proposed by the characterization techniques.(c) 2005 Elsevier B.V. All rights reserved.

引用

收藏

页码：50 / 59

页数：10

相关论文

共 61 条

[51] CO2 reforming of CH4 over Pt/ZrO2 catalysts promoted with La and Ce oxides [J].

Stagg-Williams, SM ;

Noronha, FB ;

Fendley, G ;

Resasco, DE .

JOURNAL OF CATALYSIS, 2000, 194 (02) :240-249

[52] ELECTRONIC-STATE AND LOCATION OF PT METAL-CLUSTERS IN KL ZEOLITE - FTIR STUDY OF CO CHEMISORPTION [J].

STAKHEEV, AY ;

SHPIRO, ES ;

JAEGER, NI ;

SCHULZEKLOFF, G .

CATALYSIS LETTERS, 1995, 32 (1-2) :147-158

[53]

STRAKEY J, 2003, P 2003 FUEL CELL SEM, P756

[54] Steam reforming and dehydrogenation of methanol: Difference in the catalytic functions of copper and group VIII metals [J].

Takezawa, N ;

Iwasa, N .

CATALYSIS TODAY, 1997, 36 (01) :45-56

[55] DETERMINATION OF IR EXTINCTION COEFFICIENTS FOR LINEAR-BONDED AND BRIDGED-BONDED CO ON SUPPORTED PALLADIUM [J].

VANNICE, MA ;

WANG, SY .

JOURNAL OF PHYSICAL CHEMISTRY, 1981, 85 (17) :2543-2546

[56] Redox behavior of CeO2-ZrO2 mixed oxides I.: Influence of redox treatments on high surface area catalysts [J].

Vidal, H ;

Kaspar, J ;

Pijolat, M ;

Colon, G ;

Bernal, S ;

Cordón, A ;

Perrichon, V ;

Fally, F .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 27 (01) :49-63

[57] Methane combustion over supported palladium catalysts I. Reactivity and active phase [J].

Yang, SW ;

Maroto-Valiente, A ;

Benito-Gonzalez, M ;

Rodriguez-Ramos, I ;

Guerrero-Ruiz, A .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 28 (3-4) :223-233

[58] An XRD and TEM investigation of the structure of alumina-supported ceria-zirconia [J].

Yao, MH ;

Baird, RJ ;

Kunz, FW ;

Hoost, TE .

JOURNAL OF CATALYSIS, 1997, 166 (01) :67-74

[59] The reactions of ethanol over M/CeO2 catalysts -: Evidence of carbon-carbon bond dissociation at low temperatures over Rh/CeO2 [J].

Yee, A ;

Morrison, SJ ;

Idriss, H .

CATALYSIS TODAY, 2000, 63 (2-4) :327-335

[60] A study of ethanol reactions over Pt/CeO2 by temperature-programmed desorption and in situ FT-IR spectroscopy:: Evidence of benzene formation [J].

Yee, A ;

Morrison, SJ ;

Idriss, H .

JOURNAL OF CATALYSIS, 2000, 191 (01) :30-45

← 1 2 3 4 5 6 7 →