FORMATION OF STRONG ELECTRON-ACCEPTOR CENTERS IN REDUCED GA AND PT GA ZEOLITES

被引：24

作者：

SHPIRO, ES

SHEVCHENKO, DP

KHARSON, MS

DERGACHEV, AA

MINACHEV, KM

机构：

[1] N.D. Zelinsky Institute of Organic Chemistry, USSR Academy of Sciences, Moscow

来源：

ZEOLITES | 1992年 / 12卷 / 06期

关键词：

PT-GA PENTASIL; XPS; LR; PY THERMODESORPTION; C4; AROMATIZATION;

D O I：

10.1016/0144-2449(92)90113-4

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：

I.r. of adsorbed pyridine and X.p.s. spectra were obtained for reduced Ga-containing ZSM-5 zeolite catalysts. Platinum introduction was shown to promote Ga reduction to an intermediate oxidation state that exhibits strong Lewis acidity. These species were considered as active sites in lower alkane aromatization over PtGa- and GaZSM-5.

引用

页码：670 / 673

页数：4

共 16 条

[1] CHANGYU T, 1988, 9TH P INT C CAT, V1, P445
[2] THE GENERATION OF BRONSTED AND LEWIS ACID SITES ON THE SURFACE OF SILICA BY ADDITION OF DOPANT CATIONS
CONNELL, G
DUMESIC, JA
[J]. JOURNAL OF CATALYSIS, 1987, 105 (02) : 285 - 298
[3] SELECTIVE CONVERSION OF PROPANE INTO AROMATICS ON PLATINUM ION-EXCHANGED GALLIUM-SILICATE BIFUNCTIONAL CATALYSTS
INUI, T
MAKINO, Y
OKAZUMI, F
MIYAMOTO, A
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1986, (07) : 571 - 573
[4] TRANSFORMATION OF PROPANE INTO AROMATIC-HYDROCARBONS OVER ZSM-5 ZEOLITES
KITAGAWA, H
SENDODA, Y
ONO, Y
[J]. JOURNAL OF CATALYSIS, 1986, 101 (01) : 12 - 18
[5] Minachev Kh.M., 1988, IAN SSSR KH, P2667
[6] MINACHEV KM, 1988, DOKL AKAD NAUK SSSR+, V300, P155
[7] MINACHEV KM, 1988, DOKL AKAD NAUK SSSR+, V303, P412
[8] MINACHEV KM, 1981, PHOTOELECTRON SPECTR
[9] MINACHEV KM, 1990, IZV ACAD NAUK USSR K, P2373
[10] Seddon D., 1990, CATAL TODAY, V6, P351, DOI 10.1016/0920-5861(90)85009-d

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