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
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页码:670 / 673
页数:4
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