Preparation and stabilization of high specific area zirconia carriers

被引：44

作者：

Duchet, J. C. ^{[1
]}

Tilliette, M. J. ^{[1
]}

Cornet, D. ^{[1
]}

机构：

[1] Univ Caen, ISMRA, CNRS, Lab Catalyse & Spectrochim,URA 0414, F-14050 Caen, France

来源：

CATALYSIS TODAY | 1991年 / 10卷 / 04期

关键词：

D O I：

10.1016/0920-5861(91)80036-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Zirconia samples have been prepared by precipitation from an aqueous solution of zirconyl nitrate followed by calcination in flowing air at temperatures up to 970 K. The textural properties (S(BET) and pore size distribution) of these zirconia powders were very sensitive to the activation procedure. Calcination in carefully controlled conditions at 770 K yielded crystallized zirconia with surface area (S(BET) approximate to 130 m(2) g(-1)) and porosity suitable for use as a catalyst carrier. Zirconia samples doped with yttrium, nickel or aluminium were obtained by impregnation of the amorphous hydrous oxide. For solids calcined at 770-970 K, the surface area and thermal stability were improved, but the porosity was lower.

引用

页码：507 / 520

页数：14

共 22 条

[11] TRANSFORMATION TOUGHENING .3. EXPERIMENTAL-OBSERVATIONS IN THE ZRO2-Y2O3 SYSTEM [J].

LANGE, FF .

JOURNAL OF MATERIALS SCIENCE, 1982, 17 (01) :240-246

[12] IMPORTANCE OF STANDARD ISOTHERMS IN THE ANALYSIS OF ADSORPTION-ISOTHERMS FOR DETERMINING THE POROUS TEXTURE OF SOLIDS [J].

LECLOUX, A ;

PIRARD, JP .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1979, 70 (02) :265-281

[13] STUDIES ON PORE SYSTEMS IN CATALYSTS .V. T METHOD [J].

LIPPENS, BC ;

DEBOER, JH .

JOURNAL OF CATALYSIS, 1965, 4 (03) :319-&

[14]

LIVAGE J, 1968, B SOC CHIM FR, P507

[15]

MAUCHAUSSE C, 1988, P 9 INT C CAT CALG, V2, P775

[16] ZIRCONIA AS A SUPPORT FOR CATALYSTS - EVOLUTION OF THE TEXTURE AND STRUCTURE ON CALCINATION IN AIR [J].

MERCERA, PDL ;

VANOMMEN, JG ;

DOESBURG, EBM ;

BURGGRAAF, AJ ;

ROSS, JRH .

APPLIED CATALYSIS, 1990, 57 (01) :127-148

[17]

NOUGAYREDE J, 1987, OIL GAS J 0810, P65

[18]

PARIS G, 1967, THESIS U LYON

[19]

RIJNTEN T, 1971, U DELFT

[20] ZIRCONIUM-OXIDE CRYSTAL PHASE - THE ROLE OF THE PH AND TIME TO ATTAIN THE FINAL PH FOR PRECIPITATION OF THE HYDROUS OXIDE [J].

SRINIVASAN, R ;

HARRIS, MB ;

SIMPSON, SF ;

DEANGELIS, RJ ;

DAVIS, BH .

JOURNAL OF MATERIALS RESEARCH, 1988, 3 (04) :787-797

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