Ethanol steam reforming using Ni(II)-Al(III) layered double hydroxide as catalyst precursor

Mas, V.; Baronetti, Graciela T.; Amadeo, Norma; Laborde, Miguel

doi:10.1016/j.cej.2007.08.035

Cited by 98 publications

(32 citation statements)

References 22 publications

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“…2(a). Likewise, the typical doublet of d(110)-d(113) planes of LDHs can be clearly observed in the zone close to 2θ = 60-62° [17], and no signals of other crystalline phases were detected. A phase assigned to spinel-like structure with the characteristic diffraction peaks at 2θ of 18.9°, 30.7°, 36.8°, 44.4°, 59.8°, and 65.2° was observed in all the calcined samples in Figs.…”

Section: Characterization Resultsmentioning

confidence: 90%

Influence of rare earth promoters on the performance of Ni/Mg(Al)O catalysts for hydrogenation and steam reforming of toluene

Zhang

Cheng

et al. 2009

Rare Metals

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CeO 2 -, La 2 O 3 -, and ZrO 2 -promoted Ni/Mg(Al)O catalysts synthesized by hydrotalcite-type precursors have been investigated with respect to catalytic activity and carbon formation in the hydrogenation and steam reforming of toluene as a model tar compound. X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) specific surface area and H 2 -temperature programmed reduction (TPR) were used to observe the characteristics of the prepared catalysts. The carbon formation and its amount on the used catalysts were examined by transmission electron microscope (TEM), scanning electron microscope (SEM) and thermogravimetric (TG). The trend of catalytic activity as derived from the experimental results followed the order: Ni-Ce>Ni-La>Ni-Zr>Ni. The catalyst modified with CeO 2 exhibited the highest catalytic performance and had good carbon resistance in the hydrogenation and steam reforming of toluene. A toluene conversion of 96.8%, a CH 4 yield of 45.2% and a CO yield of 50.4% have been achieved. The addition of promoters led to better dispersion of nickel species and higher interaction nickel-support, which were favorable for increasing the catalytic activity and effectively preventing carbon formation.

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Section: Characterization Resultsmentioning

confidence: 90%

Influence of rare earth promoters on the performance of Ni/Mg(Al)O catalysts for hydrogenation and steam reforming of toluene

Zhang

Cheng

et al. 2009

Rare Metals

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“…Layered double hydroxides (LDHs), one family of promising inorganic solid matrixes [9][10][11][12][13], can be described by the general formula [M 2+ 1−x M 3+ x (OH) 2 ] x+ (A n− ) x/n ·mH 2 O, where M 2+ and M 3+ are divalent and trivalent metal ions, respectively, and A n− is an exchangeable anion compensating for the positive charge of the hydroxide layers [14]. Recently, some biocompatible LDHs have attracted considerable attention as drug delivery materials due to the following advantages: easy preparation, low cost, good biocompatibility, low cytotoxicity, full protection for the intercalated drugs and good suitability in cellular and animal systems [15,16].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Glycy-l-Tyrosine intercalated layered double hydroxide film and its in vitro release behavior

Kong

Shi

Han

et al. 2010

Chemical Engineering Journal

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“…Among various catalysis applications, a prevailing class of catalyst constitutes well‐dispersed, catalytically active supported metal nanoparticles, which can be obtained by reducing calcined LDHs containing desired metals either in the form of metal cations on the layers or in the form of metal complexes in the interlayers 10–12. This kind of structural transformation endows LDH materials with excellent capability in various metal‐catalyzed reactions 13–17…”

Section: Introductionmentioning

confidence: 99%

Formation and catalytic performance of supported ni nanoparticles via self‐reduction of hybrid NiAl‐LDH/C composites

Xiang¹,

Bai²,

Feng³

2010

AIChE Journal

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In the present work, hybrid NiAl-layered double hydroxide/carbon (LDH/C) composites with adjustable compositions were successfully assembled by crystallization of LDH in combination with carbonization of glucose under hydrothermal conditions, and further utilized as an integrated catalyst for the growth of carbon nanotubes (CNTs) in catalytic chemical vapor deposition (CCVD) of acetylene. The materials were characterized by X-ray diffraction, Fourier transform infrared, elemental analysis, thermogravimetric and differential thermal analysis, SEM, transmission electron microscopy, Xray photoelectron spectra, and Raman spectroscopy. The results revealed that the supported Ni nanoparticles with the small crystallite size of about 10 nm could be obtained by in situ self-reduction of as-assembled hybrid LDH/C composites in the course of CCVD. The carbon in the hybrid structure as a reducing agent played a key role for the high dispersion of resulting Ni nanoparticles. Furthermore, the Ni nanoparticles obtained here exhibited excellent activity for catalytic growth of CNTs, which could be delicately tuned by varying the compositions of hybrid composites. V

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Ethanol steam reforming using Ni(II)-Al(III) layered double hydroxide as catalyst precursor

Cited by 98 publications

References 22 publications

Influence of rare earth promoters on the performance of Ni/Mg(Al)O catalysts for hydrogenation and steam reforming of toluene

Influence of rare earth promoters on the performance of Ni/Mg(Al)O catalysts for hydrogenation and steam reforming of toluene

Preparation of Glycy-l-Tyrosine intercalated layered double hydroxide film and its in vitro release behavior

Formation and catalytic performance of supported ni nanoparticles via self‐reduction of hybrid NiAl‐LDH/C composites

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