Application of Precursors of Catalytically Active Materials on Preshaped Supports by Impregnation with Solutions of Badly Crystallizing Compounds

Meima, G.R.; Dekker, B.G.; Dillen, A.J. van; Geus, J.W.; Bongaarts, J.E.; Buren, F.R. van; Delcour, K.; Wigman, J.M.

doi:10.1016/s0167-2991(08)65399-9

Cited by 10 publications

(3 citation statements)

References 20 publications

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“…First examples in the academic literature have been published in several PhD theses supervised by Geus and co-workers. A case in point is the work of Meima et al [8], which discloses the application of aqueous tin(II)-citrate onto alpha alumina. For completeness we note that ion exchange/adsorption of diamine metal chelates is also a frequently used method for catalyst preparation [3].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of supported catalysts by impregnation and drying using aqueous chelated metal complexes

Dillen

Terorde

Lensveld

et al. 2003

Journal of Catalysis

317

150

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Work is reviewed on the synthesis of supported metal and metal oxide catalysts using impregnation of an aqueous solution of chelated metal ions followed by drying. The nature of the aqueous solutions of chelated complexes is discussed first. Upon solvent evaporation a steep increase in viscosity is apparent, which inhibits redistribution of impregnated solution upon drying of the support bodies. Furthermore, a gel-like phase is formed that favors high dispersions of the active phase after full drying. Second, several examples are dealt with in some detail, in particular supported iron, nickel, and cobalt-molybdenum catalysts. Finally an overview is presented for metal and metal oxide precursors that can be suitably deposited upon support materials using chelated aqueous metal complex solutions.

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Section: Introductionmentioning

confidence: 99%

Synthesis of supported catalysts by impregnation and drying using aqueous chelated metal complexes

Dillen

Terorde

Lensveld

et al. 2003

Journal of Catalysis

317

150

View full text Add to dashboard Cite

show abstract

“…On the other hand, the most extensively used method to prepare these catalysts is the impregnation with different salt solutions, such as nickel nitrate 18,33-37,41 and nickel citrate. − Thus, Lensveld et al have concluded that the incipient wetness impregnation with an aqueous nickel citrate solution is an excellent method to prepare MCM-41-supported nickel catalysts, with 10 wt % Ni and highly dispersed nickel oxide nanoparticles confined inside the pores.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation and Ring Opening of Tetralin on Supported Nickel Zirconium-Doped Mesoporous Silica Catalysts. Influence of the Nickel Precursor

et al. 2003

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When mesoporous silica doped with zirconium with a MCM-41-type structure as a support was used, three different supported nickel catalysts were prepared by means of incipient wetness impregnation using different nickel salt solutions. Impregnation with aqueous or ethanolic nickel nitrate solutions gives rise to large Ni particles, whereas with an aqueous nickel citrate solution, the formation of small particles with a high metallic area is observed. Therefore, the use of nickel citrate as the nickel source effectively inhibits the aggregation of nickel particles. This catalyst showed the highest catalytic activity in the hydrogenation and ring opening of tetralin at a moderate temperature (648 K) and high hydrogen pressure (6 MPa), exhibiting a THN conversion of 90% with a high yield of hydrogenation products (53.8%) and cracking compounds (36.1%).

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“…However, recent works have demonstrated that nickel citrate [15][16][17][18] can give rise to catalysts with a high degree of nickel dispersion.…”

Section: Introductionmentioning

confidence: 99%

Nickel supported on porous silica as catalysts for the gas-phase hydrogenation of acetonitrile

Infantes‐Molina

2004

Journal of Catalysis

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Application of Precursors of Catalytically Active Materials on Preshaped Supports by Impregnation with Solutions of Badly Crystallizing Compounds

Cited by 10 publications

References 20 publications

Synthesis of supported catalysts by impregnation and drying using aqueous chelated metal complexes

Synthesis of supported catalysts by impregnation and drying using aqueous chelated metal complexes

Hydrogenation and Ring Opening of Tetralin on Supported Nickel Zirconium-Doped Mesoporous Silica Catalysts. Influence of the Nickel Precursor

Nickel supported on porous silica as catalysts for the gas-phase hydrogenation of acetonitrile

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