Preferential CO oxidation promoted by the presence of H2 over K-Pt/Al2O3

被引：70

作者：

Minemura, Y

Ito, S

Miyao, T

Naito, S

Tomishige, K

Kunimori, K

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Kanagawa Univ, Fac Engn, Dept Appl Chem, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan

来源：

CHEMICAL COMMUNICATIONS | 2005年 / 11期

关键词：

D O I：

10.1039/b416565a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In preferential CO oxidation in H-2-rich gas, K-Pt/Al2O3 (K/Pt = 10) was very effective in decreasing CO concentration below 10 ppm in the 375-410 K range, and the turnover frequency of the K-Pt/Al2O3 was 20 times as high as that of Pt/Al2O3 at 353 K; furthermore, the activity of CO oxidation was promoted drastically by the presence of H-2.

引用

收藏

页码：1429 / 1431

页数：3

相关论文

共 16 条

[1] CO oxidation on Pt(111) promoted by coadsorbed H2O [J].

Bergeld, J ;

Kasemo, B ;

Chakarov, DV .

SURFACE SCIENCE, 2001, 495 (03) :L815-L820

[2] Hydrogen from methanol for fuel cells in mobile systems: Development of a compact reformer [J].

Hohlein, B ;

Boe, M ;

BogildHansen, J ;

Brockerhoff, P ;

Colsman, G ;

Emonts, B ;

Menzer, R ;

Riedel, E .

JOURNAL OF POWER SOURCES, 1996, 61 (1-2) :143-147

[3] Removal of carbon monoxide from hydrogen-rich fuels by selective oxidation over platinum catalyst supported on zeolite [J].

Igarashi, H ;

Uchida, H ;

Suzuki, M ;

Sasaki, Y ;

Watanabe, M .

APPLIED CATALYSIS A-GENERAL, 1997, 159 (1-2) :159-169

[4] Selective CO oxidation in H2-rich gas over K2CO3-promoted Rh/SiO2 catalysts:: effects of preparation method [J].

Ito, S ;

Tanaka, H ;

Minemura, Y ;

Kameoka, S ;

Tomishige, K ;

Kunimori, K .

APPLIED CATALYSIS A-GENERAL, 2004, 273 (1-2) :295-302

[5] Strong rhodium-niobia interaction in Rh/Nb2O5, Nb2O5-Rh/SiO2 and RhNbO4/SiO2 catalysts -: Application to selective CO oxidation and CO hydrogenation [J].

Ito, S ;

Fujimori, T ;

Nagashima, K ;

Yuzaki, K ;

Kunimori, K .

CATALYSIS TODAY, 2000, 57 (3-4) :247-254

[6]

Iwase M., 1995, P 1 INT S PROT COND, V1, P12

[7] Selective catalytic oxidation of CO in H2:: Fuel cell applications [J].

Korotkikh, O ;

Farrauto, R .

CATALYSIS TODAY, 2000, 62 (2-3) :249-254

[8] Selective catalytic oxidation of CO in H2:: structural study of Fe oxide-promoted Pt/alumina catalyst [J].

Liu, XS ;

Korotkikh, O ;

Farrauto, R .

APPLIED CATALYSIS A-GENERAL, 2002, 226 (1-2) :293-303

[9] Selective CO oxidation over Pt/alumina catalysts for fuel cell applications [J].

Manasilp, A ;

Gulari, E .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2002, 37 (01) :17-25

[10] CARBON-MONOXIDE REMOVAL FROM HYDROGEN-RICH FUEL-CELL FEEDSTREAMS BY SELECTIVE CATALYTIC-OXIDATION [J].

OH, SH ;

SINKEVITCH, RM .

JOURNAL OF CATALYSIS, 1993, 142 (01) :254-262