Synthesis, characterization, and application of ruthenium-doped SrTiO 3 perovskite catalysts for microwave-assisted methane dry reforming

Gangurde, Lalit; Sturm, Guido; Valero-Romero, María José; Mallada, Reyes; Santamarı́a, Jesús; Stankiewicz, Andrzej; Stefanidis, Georgios D.

doi:10.1016/j.cep.2018.03.024

Cited by 77 publications

(27 citation statements)

References 36 publications

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“…Very recently, Gangurde and coworkers synthesized Ru-doped SrTiO 3 perovskite catalysts that could also absorb MW energy for DRM. 49 Nonetheless, an excessive amount of CO 2 was needed to be present in the feed gas to limit C formation. This, without doubt, increases the downstream burden to separate or recycle the unreacted CO 2 , leading to complexities in the DRM process.…”

Section: Catalytic Activitymentioning

confidence: 99%

Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

Nguyen

Pham

Ran

et al. 2018

Catal. Sci. Technol.

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Section: Catalytic Activitymentioning

confidence: 99%

Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

Nguyen

Pham

Ran

et al. 2018

Catal. Sci. Technol.

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“…An enhancement of Ni particles' dispersion and stability may be provided via the deposition of noble metal nanoparticles. Noble metal particles, such as platinum, gold, rhodium, and ruthenium, may enhance the dispersion of nickel particles and inhibit carbon deposition [10,[12][13][14][15]. Arora et al [1] typed the properties of noble metals, such as a good dispersion ability in the form of nanoscale particles that promote the dissociative adsorption of hydrogen and oxygen, and the exposure of d-subshell electrons as the main features responsible for the high activity and coke resistance.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Nickel and Ruthenium–Nickel Catalysts Supported on SiO2, ZrO2, Al2O3, and MgAl2O4 in a Dry Reforming Process

2019

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Dry reforming of methane (DRM) is an eco-friendly method of syngas production due to the utilization of two main greenhouse gases—methane and carbon dioxide. An industrial application of methane dry reforming requires the use of a catalyst with high activity, stability over a long time, and the ability to catalyze a reaction, leading to the needed a hydrogen/carbon monoxide ratio. Thus, the aim of the study was to investigate the effect of support and noble metal particles on catalytic activity, stability, and selectivity in the dry reforming process. Ni and Ni–Ru based catalysts were prepared via impregnation and precipitation methods on SiO2, ZrO2, Al2O3, and MgAl2O4 supports. The obtained catalysts were characterized using X-ray diffractometry (XRD), inductively coupled plasma optical emission spectrometry (ICP-OES), Brunauer–Emmett–Teller (BET) specific surface area, and elemental carbon-hydrogen-nitrogen-sulphur analysis (CHNS) techniques. The catalytic activity was investigated in the carbon dioxide reforming of a methane process at 800 °C. Catalysts supported on commercial Al2O3 and spinel MgAl2O4 exhibited the highest activity and stability under DRM conditions. The obtained results clearly indicate that differences in catalytic activity result from the dispersion, size of an active metal (AM), and interactions of the AM with the support. It was also found that the addition of ruthenium particles enhanced the methane conversion and shifted the H2/CO ratio to lower values.

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“…[21][22][23] Over the past decade, many attempts have been made to reform methane with CO2 under microwave irradiation. [24][25][26][27][28] Zhang et al reported MDR using microwave dielectric heating over an Al2O3 supported platinum catalyst. They claimed, due to the formation of hot spots under microwave irradiation, higher conversion and selectivity were obtained under microwave conditions than those obtained with conventional thermal process when operating at the same measured temperature.…”

Section: Introductionmentioning

confidence: 99%

MnO_x-Promoted, Coking-Resistant Nickel-Based Catalysts for Microwave-Initiated CO₂ Utilization

Jie

Wang

et al. 2020

Ind. Eng. Chem. Res.

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The most important factors in improving the stability of nickel-based catalysts for methane reforming with carbon dioxide (so-called methane dry reforming, MDR) lie both in suppressing carbon formation and inhibiting metal sintering at the high operating temperatures of this process (typically above 700 °C). Many efforts had been made to overcome these challenges, for example, by enhancing metal catalyst-support interactions. In this work, we used microwaves as an energy source to drive the MDR reactions under mild conditions with an overall measured catalyst bed temperature of below 220˚C. High CH4 conversion of ca. 94% and 97% conversion of CO2 were achieved over manganese-oxide modified ZrO2-supported nickel catalysts, exhibiting excellent anticoking properties. Compared with Ni/ZrO2 and Mn/ZrO2 catalysts, the Ni-Mn bimetal catalytic system stabilizes the catalytic activity of MDR by suppressing carbon deposition with the mixedvalent Mn 3+ /Mn 2+ chemical states enhancing the absorption and conversion of CO2 during the reactions.

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Synthesis, characterization, and application of ruthenium-doped SrTiO 3 perovskite catalysts for microwave-assisted methane dry reforming

Abstract: Synthesis, characterization, and application of ruthenium-doped SrTiO3 perovskite catalysts for microwave-assisted methane dry reforming

Cited by 77 publications

References 36 publications

Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

Catalytic Activity of Nickel and Ruthenium–Nickel Catalysts Supported on SiO2, ZrO2, Al2O3, and MgAl2O4 in a Dry Reforming Process

MnO_x-Promoted, Coking-Resistant Nickel-Based Catalysts for Microwave-Initiated CO₂ Utilization

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Synthesis, characterization, and application of ruthenium-doped SrTiO 3 perovskite catalysts for microwave-assisted methane dry reforming

Abstract: Synthesis, characterization, and application of ruthenium-doped SrTiO3 perovskite catalysts for microwave-assisted methane dry reforming

Cited by 77 publications

References 36 publications

Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation

Dry reforming of methane over Co–Mo/Al2O3 catalyst under low microwave power irradiation

Catalytic Activity of Nickel and Ruthenium–Nickel Catalysts Supported on SiO2, ZrO2, Al2O3, and MgAl2O4 in a Dry Reforming Process

MnOx-Promoted, Coking-Resistant Nickel-Based Catalysts for Microwave-Initiated CO2 Utilization

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Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

Dry reforming of methane over Co–Mo/Al₂O₃ catalyst under low microwave power irradiation

MnO_x-Promoted, Coking-Resistant Nickel-Based Catalysts for Microwave-Initiated CO₂ Utilization