Ru/Ni/MgAl2O4 catalysts for steam reforming of methane: effects of Ru content on self-activation property

Baek, Seung Chan; Jun, Kil-Woung; Lee, Yun Jo; Kim, Jae Dong; Park, Dal Young; Lee, Kwan Young

doi:10.1007/s11164-011-0462-0

Cited by 20 publications

(6 citation statements)

References 20 publications

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“…As Ru–Ni bimetallic catalysts have been described in a few reports, − herein we report the use of this catalytic system for DMT hydrogenation. Both the catalysts and the supports were characterized using different techniques, such as transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and H 2 temperature-programmed desorption (H 2 -TPD).…”

Section: Introductionmentioning

confidence: 99%

Dimethyl Terephthalate Hydrogenation to Dimethyl Cyclohexanedicarboxylates over Bimetallic Catalysts on Carbon Nanotubes

Yong

Cheng

et al. 2014

Ind. Eng. Chem. Res.

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The synthesis and utilization of bimetallic catalysts for the hydrogenation of dimethyl terephthalate (DMT) to dimethyl cyclohexanedicarboxylates (DMCD) is described in this Article. A variety of techniques, such as low temperature N 2 adsorption−desorption, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and H 2 temperature-programmed desorption were employed to characterize both the supports and the catalysts. The influence of various operational parameters, for example reaction temperature, pressure, and time, on the catalytic performance for the hydrogenation of DMT was systematically analyzed. Under optimized conditions, a DMT conversion of 80% along with DMCD selectivity of 95% were achieved. Furthermore, efforts were also made to probe the catalyst stability. The enhanced catalytic performance of optimized Ru−Ni/CNT catalysts can be attributed to the tight immobilization of the metal particles on the carbon nanotubes and the unique properties of the nitric acid-treated carbon nanotubes.

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Section: Introductionmentioning

confidence: 99%

Dimethyl Terephthalate Hydrogenation to Dimethyl Cyclohexanedicarboxylates over Bimetallic Catalysts on Carbon Nanotubes

Yong

Cheng

et al. 2014

Ind. Eng. Chem. Res.

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“…In addition, as described in chapter 3, Yoon et al 60 calculated the activation energies of each step involving the CO gas evolution and predicted that the addition of Ru to alloy is effective for suppressing carbon deposition. Baek et al 75 reported that Ru/Ni/MgAl 2 O 4 has self-activation property and that H 2 treatment was not necessary.…”

Section: Effects Of Alloying On Steam Reforming Of Methane (Srm)mentioning

confidence: 99%

Effects of alloying for steam or dry reforming of methane: a review of recent studies

Torimoto

Sekine

2022

Catal. Sci. Technol.

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“…Moreover, Ni-Ru bimetallic materials have been widely studied for other reactions, like CO methanation [15,[19][20][21], CO2 reforming [22,23] and hydrogen production [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Influence of calcination on metallic dispersion and support interactions for NiRu/TiO2 catalyst in the hydrodeoxygenation of phenol

et al. 2019

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Bio-oil upgrading by hydrotreatment has been considered as a renewable and carbon-neutral route for fuels production and potential substitutes for fossil oil distillates. Traditional hydrodesulfurization catalysts (sulfided CoMo and NiMo) used in petroleum refining have been evaluated in hydrodeoxygenation reactions with high selectivity to aromatics. However, significant deactivation has been commonly observed, due to the low sulfur content in biooil. Thus, the development of different active and stable catalytic materials is needed. In this regard, we have previously reported a synergetic effect between Ni and Ru bimetallic materials supported on Al2O3, TiO2 and ZrO2 in phenol HDO with promising activity and selectivity results. In particular, materials supported TiO2 on displayed the highest activities.Therefore, the aim of this work was to evaluate the effect of calcination on dispersion and metal-support interactions and their impact on activity and selectivity for NiRu/TiO2 catalysts in HDO of phenol as a model compound for bio oil. Catalysts were characterized by hydrogen chemisorption, Temperature-programmed reduction, X-ray photoelectron spectroscopy, High resolution electron microscopy. Additionally, hydrogenation of benzene was used as a structure unsensitive reaction in order to obtain more information about metallic dispersion. A highly active NiRu catalyst was obtained when calcination was avoided prior to reduction. The calcination procedure induced the formation of metallic oxides and it provoked less dispersed NiRu species as compared with catalysts without this previous treatment. On the contrary, the formation of metallic species from direct reduction of precursor salts contributed to produce highly dispersed species and possibly a cooperation between both Ni and Ru.

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Ru/Ni/MgAl2O4 catalysts for steam reforming of methane: effects of Ru content on self-activation property

Cited by 20 publications

References 20 publications

Dimethyl Terephthalate Hydrogenation to Dimethyl Cyclohexanedicarboxylates over Bimetallic Catalysts on Carbon Nanotubes

Dimethyl Terephthalate Hydrogenation to Dimethyl Cyclohexanedicarboxylates over Bimetallic Catalysts on Carbon Nanotubes

Effects of alloying for steam or dry reforming of methane: a review of recent studies

Influence of calcination on metallic dispersion and support interactions for NiRu/TiO2 catalyst in the hydrodeoxygenation of phenol

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