CHARACTERIZATION AND ACTIVITY OF PT-SN/AL2O3 CATALYSTS OF DIFFERENT PREPARATION - COIMPREGNATION AND NEW PT-SN PRECURSOR

被引：32

作者：

KAPPENSTEIN, C ^{[1
]}

SAOUABE, M ^{[1
]}

GUERIN, M ^{[1
]}

MARECOT, P ^{[1
]}

USZKURAT, I ^{[1
]}

PAAL, Z ^{[1
]}

机构：

[1] HUNGARIAN ACAD SCI,INST ISOTOPES,H-1525 BUDAPEST,HUNGARY

来源：

CATALYSIS LETTERS | 1995年 / 31卷 / 01期

关键词：

CATALYST PREPARATION; ALUMINA SUPPORTED PLATINUM-TIN CATALYSTS; COIMPREGNATION; BIMETALLIC PRECURSOR; TPR; CYCLOHEXANE DEHYDROGENATION; CYCLOPENTANE RING OPENING; N-HEXANE SKELETAL REACTIONS;

D O I：

10.1007/BF00817028

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：

A new bimetallic Pt-Sn compound [Pt(NH3)(4)][SnCl6] has been used as precursor for the preparation of supported Pt-Sn/A/O-2(3) catalysts. A comparison of a dried sample with that prepared by coimpregnation displays different behaviour in TPR, chemisorption. The initial catalytic activity properties were checked in the reactions of cyclohexane dehydrogenation and cyclopentane ring opening, while n-hexane skeletal reactions were used to probe the quasisteady-state activity. The catalyst prepared via the Pt-Sn complex precursors exhibited somewhat lower specific activity. This fact, together with enhanced olefin formation from n-hexane was taken as an indication of lower amount of contiguous Pt atoms and some electronic interaction between Pt and Sn in that catalyst.

引用

页码：9 / 17

页数：9

共 40 条

[1]

Anderson J. R., 1973, ADV CATAL, V23, P1

[2]

Baladin A. A., 1969, ADV CATAL, V19, P1, DOI DOI 10.1016/S0360-0564(08)60029-2

[3] A CHEMISORPTION AND XPS STUDY OF BIMETALLIC PT-SN/AL2O3 CATALYSTS [J].

BALAKRISHNAN, K ;

SCHWANK, J .

JOURNAL OF CATALYSIS, 1991, 127 (01) :287-306

[4] STATE OF METALLIC PHASE IN PT-SN/AL2O3 CATALYSTS PREPARED BY DIFFERENT DEPOSITION TECHNIQUES [J].

BARONETTI, GT ;

DEMIGUEL, SR ;

SCELZA, OA ;

CASTRO, AA .

APPLIED CATALYSIS, 1986, 24 (1-2) :109-116

[5] CATALYTIC REFORMING OF N-HEPTANE ON PLATINUM, TIN AND PLATINUM-TIN SUPPORTED ON ALUMINA [J].

BELTRAMINI, J ;

TRIMM, DL .

APPLIED CATALYSIS, 1987, 31 (01) :113-118

[6] CATALYTIC DEHYDROGENATION OF PROPANE TO PROPENE OVER PLATINUM AND PLATINUM-GOLD ALLOYS [J].

BILOEN, P ;

DAUTZENBERG, FM ;

SACHTLER, WMH .

JOURNAL OF CATALYSIS, 1977, 50 (01) :77-86

[7] THE ROLE OF RHENIUM AND SULFUR IN PLATINUM-BASED HYDROCARBON-CONVERSION CATALYSTS [J].

BILOEN, P ;

HELLE, JN ;

VERBEEK, H ;

DAUTZENBERG, FM ;

SACHTLER, WMH .

JOURNAL OF CATALYSIS, 1980, 63 (01) :112-118

[8]

Boudart M., 1969, ADV CATAL, V20, P153, DOI DOI 10.1016/S0360-0564(08)60271-0

[9]

Burch R, 1991, CATAL TODAY, V10, P233, DOI 10.1016/0920-5861(91)80003-R

[10] PLATINUM-TIN REFORMING CATALYSTS .2. ACTIVITY AND SELECTIVITY IN HYDROCARBON REACTIONS [J].

BURCH, R ;

GARLA, LC .

JOURNAL OF CATALYSIS, 1981, 71 (02) :360-372

← 1 2 3 4 →