Ruthenium—platinum bimetallic catalysts supported on silica: Characterization and study of benzene hydrogenation and CO methanation

Well-dispersed bimetallic catalysts with confinement effects and strong interaction lead to superior low-temperature activity and excellent thermostability.

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Synthesis of natural gas from CO methanation over SiC supported Ni–Co bimetallic catalysts

Catalysis Communications ◽

10.1016/j.catcom.2012.11.005 ◽

2013 ◽

Vol 31 ◽

pp. 5-10 ◽

Cited By ~ 61

Author(s):

Yue Yu ◽

Guoqiang Jin ◽

Yingyong Wang ◽

XiangYun Guo

Keyword(s):

Natural Gas ◽

Bimetallic Catalysts ◽

Co Methanation ◽

Supported Ni

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Preparation of bimetallic Ni–Fe/MCM-41 catalysts and their catalytic activity for CO methanation

Progress in Reaction Kinetics and Mechanism ◽

10.1177/1468678319870327 ◽

2019 ◽

Vol 45 ◽

pp. 146867831987032

Author(s):

Zhang Jiaying

Keyword(s):

Bimetallic Catalysts ◽

Space Velocity ◽

Molar Ratio ◽

Incipient Wetness Impregnation ◽

Impregnation Method ◽

Activity Increase ◽

Co Methanation ◽

Weight Hourly Space Velocity ◽

Temperature Programmed ◽

Mcm 41

A series of Ni–Fe/MCM-41 bimetallic catalysts and also Ni/MCM-41 and Fe/MCM-41 catalysts were prepared by the incipient-wetness impregnation method and tested for their activity for CO methanation in a continuous-flow microreactor. The results showed that the catalytic activities of the Ni–Fe/MCM-41 bimetallic catalysts were much higher than those of the Ni/MCM-41 and Fe/MCM-41 catalysts at low temperatures (200°C–325°C). The 10%Ni–5%Fe/MCM-41 catalyst showed the best activity with a CO conversion of almost 100% and a CH4 selectivity of 98% at 350°C under a pressure of 1.5 MPa with a 3:1 molar ratio of H2 to CO and a weight hourly space velocity of 12,000 mL h−1 g−1. The catalysts were characterized by N2 physisorption measurements, X-ray diffraction, and H2-temperature-programmed reduction. The results showed that the addition of Fe will lead to the formation of finer Ni particles and Ni–Fe alloy, which were the main reasons for the activity increase in the Ni–Fe/MCM-41 catalysts.

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Active Ni/SiO2 catalysts with high Ni content for benzene hydrogenation and CO methanation

Applied Catalysis A General ◽

10.1016/j.apcata.2019.05.020 ◽

2019 ◽

Vol 581 ◽

pp. 67-73 ◽

Cited By ~ 5

Author(s):

Thien An Le ◽

Jong Kyu Kang ◽

Eun Duck Park

Keyword(s):

Benzene Hydrogenation ◽

Co Methanation ◽

Ni Content

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Structure and composition of metal particles in Pt-Sn/Al2O3 bimetallic catalysts

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100174527 ◽

1990 ◽

Vol 48 (4) ◽

pp. 278-279

Author(s):

A. Sachdev ◽

J. Schwank

Keyword(s):

Bimetallic Catalysts ◽

Bimetallic Catalyst ◽

Size Structure ◽

High Surface ◽

High Surface Area ◽

Metal Particles ◽

Alloy Formation ◽

Particle Size Range ◽

Oxide Supports ◽

Petroleum Fractions

Platinum - tin bimetallic catalysts have been primarily utilized in the chemical industry in the catalytic reforming of petroleum fractions. In this process the naphtha feedstock is converted to hydrocarbons with higher octane numbers and high anti-knock qualities. Most of these catalysts contain small metal particles or crystallites supported on high surface area insulating oxide supports. The determination of the structure and composition of these particles is crucial to the understanding of the catalytic behavior. In a bimetallic catalyst it is important to know how the two metals are distributed within the particle size range and in what way the addition of a second metal affects the size, structure and composition of the metal particles. An added complication in the Pt-Sn system is the possibility of alloy formation between the two elements for all atomic ratios.

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