GENERATION OF PROTONIC ACID SITES ORIGINATING FROM MOLECULAR-HYDROGEN ON THE SURFACE OF ZIRCONIUM-OXIDE PROMOTED BY SULFATE ION AND PLATINUM

被引：14

作者：

EBITANI, K ^{[1
]}

HATTORI, H ^{[1
]}

TANABE, K ^{[1
]}

机构：

[1] HOKKAIDO UNIV, FAC SCI, DEPT CHEM, SAPPORO, HOKKAIDO 060, JAPAN

来源：

LANGMUIR | 1990年 / 6卷 / 12期

关键词：

D O I：

10.1021/la00102a006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An infrared spectroscopic study of pyridine adsorbed on the surface of zirconium oxide promoted by both sulfate ions and platinum shows that molecular hydrogen converts into protonic acid sites on the surface with concomitant decrease in Lewis acid sites at temperatures above 423 K. It seems that the molecular hydrogen in vapor phase is dissociated on platinum to form hydrogen atoms which migrate onto the oxide and loose their electrons to convert into protonic sites.

引用

页码：1743 / 1744

页数：2

共 19 条

[1] HYDROGEN SPILLOVER IN THE SYSTEM PT/AL2O3 .1. FUNDAMENTAL OBSERVATIONS [J].

BAUMGARTEN, E ;

DENECKE, E .

JOURNAL OF CATALYSIS, 1985, 95 (01) :296-299

[2] HYDROGEN SPILLOVER ON ALUMINA - A STUDY BY INFRARED-SPECTROSCOPY [J].

CAVANAGH, RR ;

YATES, JT .

JOURNAL OF CATALYSIS, 1981, 68 (01) :22-26

[3]

CONNER WC, 1986, ADV CATAL, V34, P1

[4] THERMODYNAMIC CONSIDERATIONS OF STRONG METAL SUPPORT INTERACTION IN A REAL PT/TIO2 CATALYST [J].

HERRMANN, JM .

JOURNAL OF CATALYSIS, 1989, 118 (01) :43-52

[5] SOLID CATALYST TREATED WITH ANION .2. REACTIONS OF BUTANE AND ISOBUTANE CATALYZED BY ZIRCONIUM-OXIDE TREATED WITH SULFATE ION - SOLID SUPERACID CATALYST [J].

HINO, M ;

KOBAYASHI, S ;

ARATA, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (21) :6439-6441

[6] A STUDY OF SURFACE STRUCTURE OF DECATIONIZED Y ZEOLITE BY QUANTITATIVE INFRARED SPECTROSCOPY [J].

HUGHES, TR ;

WHITE, HM .

JOURNAL OF PHYSICAL CHEMISTRY, 1967, 71 (07) :2192-&

[7]

HUIGINGA T, 1981, J PHYS CHEM-US, V85, P2156

[8] MECHANISM OF ACIDITY GENERATION ON SULFUR-PROMOTED METAL-OXIDES [J].

JIN, T ;

YAMAGUCHI, T ;

TANABE, K .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (20) :4794-4796

[9]

LEVY R, 1973, IND CHIM BELG, V38, P506

[10] KINETICS AND MECHANISM OF SPILLOVER [J].

LEVY, RB ;

BOUDART, M .

JOURNAL OF CATALYSIS, 1974, 32 (02) :304-314

← 1 2 →