JOINT USE OF XPS AND DIFFUSE REFLECTANCE SPECTROSCOPY FOR THE STUDY OF COBALT OXIDE SUPPORTED ON BORON MODIFIED ALUMINAHOUALLA M; DELMON B.1981; APPL. CATAL.; NLD; DA. 1981; VOL. 1; NO 5; PP. 285-289; BIBL. 14 REF.Article

PHYSICOCHEMICAL CHARACTERIZATION AND REDUCIBILITY OF NICKEL OXIDE SUPPORTED ON A WIDE RANGE OF SILICA-ALUMINASHOUALLA M; DELMON B.1980; J. PHYS. CHEM.; ISSN 0022-3654; USA; DA. 1980; VOL. 84; NO 17; PP. 2194-2199; BIBL. 27 REF.Article

ETUDE, PAR REDUCTION PROGRAMMEE EN TEMPERATURE, DE L'INFLUENCE DU POTASSIUM SUR LA REDUCTIBILITE DE L'OXYDE DE NICKEL DEPOSE SUR ALUMINELEMAITRE J; HOUALLA M.1981; C.R. SEANCES ACAD. SCI., SER. 2; ISSN 502677; FRA; DA. 1981; VOL. 292; NO 2; PP. 177-180; ABS. ENG; BIBL. 7 REF.Article

CONTRIBUTION A L'ETUDE PAR REDUCTION PROGRAMMEE EN TEMPERATURE DE L'OXYDE DE NICKEL SUPPORTE SUR DES SILICES MODIFIEES PAR LE SODIUM OU LE BORELEMAITRE J; HOUALLA M.1980; C.R. HEBDOM. SEANCES ACAD. SCI. C; ISSN 0567-6541; FRA; DA. 1980; VOL. 291; NO 1; PP. 17-19; ABS. ENG; BIBL. 8 REF.Article

JOINT STUDIES BY X-RAY PHOTOELECTRON SPECTROSCOPY AND ANALYTICAL ELECTRON MICROSCOPY OF THE DISPERSION OF NICKEL OXIDE SUPPORTED ON SILICA AND SILICA-ALUMINASHOUALLA M; DELANNAY F; DELMON B et al.1980; CS FARADAY TRANS. 1; ISSN 0300-9599; GBR; DA. 1980; VOL. 76; NO 8; PP. 1766-1772; H.T. 1; BIBL. 21 REF.Article

INFLUENCE OF THE SODIUM CONTENT ON THE STATE, THE DISPERSION, AND THE REPARTITION OF NICKEL OXIDE SUPPORTED ON GAMMA -ALUMINAHOUALLA M; DELANNAY F; DELMON B et al.1981; J. PHYS. CHEM.; ISSN 0022-3654; USA; DA. 1981; VOL. 85; NO 12; PP. 1704-1709; BIBL. 22 REF.Article

INFLUENCE OF THE LITHIUM CONTENT ON THE STATE DISPERSION AND REDUCTIBILITY OF NICKEL OXIDE SUPPORTED ON GAMMA -ALUMINAHOUALLA M; LEMAITRE J; DELMON B et al.1982; CS FARADAY TRANS. I; ISSN 0300-9599; GBR; DA. 1982; VOL. 78; NO 5; PP. 1389-1400; BIBL. 25 REF.Article

A COMBINED STUDY BY XPS, RAMAN, DIFFUSE REFLECTANCE SPECTROSCOPY AND ANALYTICAL ELECTRON MICROSCOPY OF THE INFLUENCE OF THE SEQUENCE AND IMPREGNATION ON THE STATE AND DISPERSION OF COBALT IN COMO/AL₂O₃ CATALYSTSAPECETCHE MA; HOUALLA M; DELMON B et al.1981; SURF. INTERFACE ANAL.; ISSN 0142-2421; GBR; DA. 1981; VOL. 3; NO 2; PP. 90-93; BIBL. 13 REF.Article

HYDROGENATION OF ETHYLENE OVER MOLYBDENA-ALUMINA CATALYSTS.LOMBARDO EA; HOUALLA M; HALL WK et al.1978; J. CATALYS.; U.S.A.; DA. 1978; VOL. 51; NO 2; PP. 256-268; BIBL. 22 REF.Article

LANG. ENGHOUALLA M; NAG NK; SAPRE AV et al.1978; A.I. CH. E.J., NEW YORK; USA; DA. 1978; VOL. 24; NO 6; PP. 1015-1021; BIBL. 19 REF.Article

PHYSICO-CHEMICAL CHARACTERISATION OF IMPREGNATED AND ION-EXCHANGED SILICA-SUPPORTED NICKEL OXIDEHOUALLA M; DELANNAY F; MATSUURA I et al.1980; CS FARADAY TRANS. 1; ISSN 0300-9599; GBR; DA. 1980; VOL. 76; NO 10; PP. 2128-2141; BIBL. 15 REF.Article

HYDRODESULFURIZATION OF DIBENZOTHIOPHENE AND RELATED COMPOUNDS CATALYZED BY SULFIDED COO-MOO₃/GAMMA -AL₂O₃. EFFECTS OF REACTANT STRUCTURE ON REACTIVITY.HOUALLA M; BRODERICK D; DE BEER VHJ et al.1977; AMER. CHEM. SOC., DIV. PETROLEUM CHEM. PREPR.; U.S.A.; DA. 1977; VOL. 22; NO 3; PP. 941-946; BIBL. 10 REF.Article

Quantitative Raman characterization of Mo/TiO₂ catalystsWUINCY, R. B; HOUALLA, M; HERCULES, D. M et al.Journal of catalysis (Print). 1987, Vol 106, Num 1, pp 85-92, issn 0021-9517Article

The effect of boron on the state and dispersion of Co/Al₂O₃ catalystsSTRANICK, M. A; HOUALLA, M; HERCULES, D. M et al.Journal of catalysis (Print). 1987, Vol 104, Num 2, pp 396-412, issn 0021-9517Article

Determination of the surface coverage of Mo/TiO₂ catalysts by ISS and CO₂ chemisorptionRONDON, S; HOUALLA, M; HERCULES, D. M et al.Surface and interface analysis. 1998, Vol 26, Num 4, pp 329-334, issn 0142-2421Article

Effect of F and Mg on the dispersion of Mo/Al₂O₃ and W/Al₂O₃MULCAHY, F. M; HOUALLA, M; HERCULES, D. M et al.Journal of catalysis (Print). 1993, Vol 139, Num 1, pp 72-80, issn 0021-9517Article

Quantitative Raman and ESCA characterization of titania supported tungsten catalystsQUINCY, R. B; HOUALLA, M; HERCULES, D. M et al.Fresenius' journal of analytical chemistry. 1993, Vol 346, Num 6-9, pp 676-682, issn 0937-0633Article

Influence of boron on the state and dispersion of CO/Al₂O₃ catalystsSTRANICK, M. A; HOUALLA, M; HERCULES, D. M et al.Preprints - American Chemical Society. Division of Petroleum Chemistry. 1986, Vol 31, Num 1, pp 266-271, issn 0569-3799Conference Paper

HYDRODESULFURIZATION OF METHYL-SUBSTITUTED DIBENZOTHIOPHENES CATALYZED BY SULFIDED CO-MO/GAMMA -AL₂O₃HOUALLA M; BRODERICK DH; SAPRE AV et al.1980; J. CATALYS.; USA; DA. 1980; VOL. 61; NO 2; PP. 523-527; BIBL. 15 REF.Article

Effect of particle size on CO hydrogenation activity of silica supported cobalt catalystsSUI-WEN HO; HOUALLA, M; HERCULES, D. M et al.Journal of physical chemistry (1952). 1990, Vol 94, Num 16, pp 6396-6399, issn 0022-3654, 4 p.Article

Ion scattering and electron spectroscopic study of catalysts prepared by adsorption of molybdate on aluminaMULCAHY, F. M; HOUALLA, M; HERCULES, D. M et al.Analytical chemistry (Washington, DC). 1990, Vol 62, Num 20, pp 2232-2236, issn 0003-2700Article

Adsorption of perrhenate on modified aluminasMULCAHY, F. M; HOUALLA, M; HERCULES, D. M et al.Journal of catalysis (Print). 1994, Vol 148, Num 2, pp 654-659, issn 0021-9517Article

Surface coverage of WO₃/ZrO₂ catalysts measured by ion scattering spectroscopy and low temperature CO adsorptionVAIDYANATHAN, N; HOUALLA, M; HERCULES, D. M et al.Surface and interface analysis. 1998, Vol 26, Num 6, pp 415-419, issn 0142-2421Article

Determination of the surface coverage of WO3/Ti0₂ catalysts by CO₂ chemisorptionVAIDYANATHAN, N; HOUALLA, M; HERCULES, D. M et al.Catalysis letters. 1997, Vol 43, Num 3-4, pp 209-212, issn 1011-372XArticle

The effect of the isoelectric point on the adsorption of molybdates on fluoride-modified aluminasMULCAHY, F. M; HOUALLA, M; HARCULES, D. M et al.Journal of catalysis (Print). 1987, Vol 106, Num 1, pp 210-215, issn 0021-9517Article