Infrared Studies of the Surface Structure of Commercial Pt-Re/Al2O3 Reforming Catalyst

被引：0

作者：

Hu Yongren ^{[1
]}

Zhang Lanxin ^{[1
]}

Xin Qin ^{[2
]}

Gao Xingtao ^{[2
]}

Ying Pinliang ^{[2
]}

机构：

[1] Res Inst Petrochem Proc, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 1995年 / 11卷 / 07期

关键词：

Infrared spectroscopy; CO; NO; Pt; Re; Surface structure;

D O I：

10.3866/PKU.WHXB19950714

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：

Infrared studies of adsorbed CO and NO on Pt/Al2O3, Re/Al2O3 and Pt-Re/Al2O3 were made to obtain information on the surface properties of Pt and Pt-Re reforming catalysts. The Pt/Al2O3 and Re/Al2O3 catalyst with very low concentration of supported metals and commercial Pt/Al2O3 catalyst have heen studied. The concentration of Pt is 0.22%, and Re is 0.43%(mass fraction). The results indicate that the infrared spectra of competitively adsorbed probe molecules NO and CO can be used to characterize the surfae structure of Pt and Re on reduced Pt-Re/Al2O3 catalyst, and to make semiquantitative analysis. More direct evidence of infrared spectra of competitively adsorbed NO and CO indicates that there is no formation of Pt-Re alloys or metallic clusters on the surface of reduced Pt-Re/Al2O3 catalyst.

引用

页码：636 / 641

页数：6

共 8 条

[1] Anabtawi J. A., 1991, FUEL SCI TECHNOLOGY, V9, P1, DOI [10.1080/08843759108942250, DOI 10.1080/08843759108942250]
[2] VARIATION OF CATALYTIC ACTIVITY OVER PTRE/GAMMA-AL2O3
AUGUSTINE, SM
SACHTLER, WMH
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (23): : 5953 - 5956
[3] ON THE MECHANISM FOR THE PLATINUM-CATALYZED REDUCTION OF RHENIUM IN PTRE/GAMMA-AL2O3
AUGUSTINE, SM
SACHTLER, WMH
[J]. JOURNAL OF CATALYSIS, 1989, 116 (01) : 184 - 194
[4] BERTOLACINI BJ, 1980, CATALYST DEACTIVATIO, P73
[5] JOSSENS LW, 1982, CATAL, V76, P256
[6] EFFECT OF CHLORINE IN THE FORMATION OF PTRE ALLOYS IN PTRE/AL2O3 CATALYSTS
MALET, P
MUNUERA, G
CABALLERO, A
[J]. JOURNAL OF CATALYSIS, 1989, 115 (02) : 567 - 579
[7] ONUFERKO JH, 1984, APPL SURF SCI, V19, P227
[8] INFRARED STUDIES OF PT AND PT-RE REFORMING CATALYSTS
PERI, JB
[J]. JOURNAL OF CATALYSIS, 1978, 52 (01) : 144 - 156

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