Raman spectroscopic evidence for the existence of 6-molybdoaluminate entities on an Mo/Al2O3 oxidic precursor

被引：82

作者：

Le Bihan, L

Blanchard, P

Fournier, M

Grimblot, J

Payen, E

机构：

[1] Univ Sci & Tech Lille Flandres Artois, URA CNRS 402, Catalyse Heterogene & Homogene Lab, F-59650 Villeneuve Dascq, France

[2] Univ Sci & Tech Lille Flandres Artois, URA CNRS 2631, Ctr Etud & Rech Laser & Applicat, Lab Spectrochim Infrarouge & Raman, F-59650 Villeneuve Dascq, France

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1998年 / 94卷 / 07期

关键词：

D O I：

10.1039/a706359h

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 study by Raman spectroscopy of the oxomolybdate surface phase present on an Mo/Al2O3 oxidic precursor reveals the presence of well dispersed 6-molybdoaluminate entities (AlMo6O24H63-) on a 15 wt.% MoO3 oxidic precursor. It is also shown that precipitation of an ammonium 6-molybdoaluminate salt occurs at higher Mo loadings.

引用

页码：937 / 940

页数：4

共 40 条

[1]

[Anonymous], 1978, TOP CURR CHEM

[2]

Blanchard P, 1995, STUD SURF SCI CATAL, V91, P1037

[3] SPECTROSCOPICAL APPROACH TO SOME HETEROPOLYMOLYBDATES WITH THE ANDERSON STRUCTURE [J].

BOTTO, IL ;

GARCIA, AC ;

THOMAS, HJ .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1992, 53 (08) :1075-1080

[4] RAMAN-SPECTRA OF SUPPORTED MOLYBDENA CATALYSTS .1. OXIDE CATALYSTS [J].

BROWN, FR ;

MAKOVSKY, LE ;

RHEE, KH .

JOURNAL OF CATALYSIS, 1977, 50 (01) :162-171

[5] REDUCIBILITY AND THERMAL-BEHAVIOR OF SOME ANDERSON PHASES [J].

CABELLO, CI ;

BOTTO, IL ;

THOMAS, HJ .

THERMOCHIMICA ACTA, 1994, 232 (02) :183-193

[6] Ligand-promoted alumina dissolution in the preparation of MoOx/gamma-Al2O3 catalysts: Evidence for the formation and deposition of an Anderson-type alumino heteropolymolybdate [J].

Carrier, X ;

Lambert, JF ;

Che, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (42) :10137-10146

[7] RELATIVE RAMAN CROSS-SECTIONS OF TUNGSTEN-OXIDES - [WO3,AL2(WO4)3 AND WO3/AL2O3] [J].

CHAN, SS ;

WACHS, IE ;

MURRELL, LL .

JOURNAL OF CATALYSIS, 1984, 90 (01) :150-155

[8]

delaCaillerie JBD, 1996, STUD SURF SCI CATAL, V101, P1321

[9]

delaCaillerie JBD, 1995, STUD SURF SCI CATAL, V91, P169

[10]

Delmon B., 1989, STUD SURF SCI CATAL, V53, P1

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