Influence of carbon support pretreatment on properties of Pd/C catalysts

Gurevich, S.; Simonov, P.A.; Lisitsyn, A.S.; Likholobov, V. A.; Мороз, Э. М.; Kolomiichuk, V. N.

doi:10.1007/bf02075506

Cited by 13 publications

(3 citation statements)

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“…37,40 Besides the material cost, Ag acts on the bimetallic PdAg by expanding its active area, with the substitution of Pd in favorable sites. 38,[40][41][42] to the literature, [43][44][45] by adding the carbon black support to these bimetallic particles, more active planes of the metals are exposed and the interaction between all particles is strengthened, helping in the stabilization of the nanoparticles. Thus this bimetallic composite has potential for electrochemical sensing, as presented in the works of Mallikarjuna et al 46 used PdAg nanostructures for the determination of uric acid.…”

Section: Supplementary Materials For This Article Is Available Onlinementioning

confidence: 95%

Pd and Ag Binary Nanoparticles Supported on Carbon Black and Tapioca for Nitrite Electrochemical Detection

Freitas¹,

Orzari²,

Oliveira³

et al. 2021

J. Electrochem. Soc.

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This study reports the use of Pd and Ag bimetallic nanoparticles, supported on carbon black and tapioca for the modification of glassy carbon electrodes. The characterization of PdAg/carbon black and tapioca film on the electrode surface was performed by scanning electron microscopy, Fourier-transform infrared and electrochemical impedance spectroscopies, X-ray diffraction, and cyclic voltammetry techniques. In addition, the proposed sensor was used for the electrochemical determination of nitrite, by differential pulse voltammetry, with a linear range from 5.0 to 1000 μmol L−1, and a detection limit of 1.24 μmol L−1. The proposed method was applied for the detection of the analyte of interest in environmental and food samples. The bimetallic composite production is simple and the sensor proved to be sensitive for electrochemical sensing of nitrite.

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Section: Supplementary Materials For This Article Is Available Onlinementioning

confidence: 95%

Pd and Ag Binary Nanoparticles Supported on Carbon Black and Tapioca for Nitrite Electrochemical Detection

Freitas¹,

Orzari²,

Oliveira³

et al. 2021

J. Electrochem. Soc.

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“…Ермакова и В.А. Лихолобова были разработаны палладиевые и биметаллические (содержащие палладий) катализаторы гидрирования органических соединений [140][141][142][143][144][145][146][147][148][149][150][151], в том числе ряда алкинов [146], которые были успешно внедре-ны на промышленные предприятия СССР и России. В экспериментах коллектива исследователей ИППУ СО РАН Сибунит (S уд= 300 м 2 /г) был выбран как носитель, не содержащий кислотных центров, ответственных за олигомеризацию ацетилена [17,152].…”

Section: жидкофазное гидрирование ацетилена в обогащенных ацетиленом unclassified

Газофазное И Жидкофазное Гидрирование Ацетилена В Обедненных И Обогащенных Смесях На Нанесенных Модифицированных Палладиевых Катализаторах

Глыздова¹,

Смирнова²,

Shlyapin³

et al. 2019

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In the presented review the results of studies devoted to the selective hydrogenation of acetylene to ethylene over bimetallic palladium-containing catalysts are systematized. General regularities and peculiarities of the catalysts action in gas-phase hydrogenation of traces of acetylene in the acetylene-ethylene mixture obtained by pyrolysis of petroleum raw materials, as well as in the process of liquid-phase hydrogenation of mixtures enriched with acetylene and hydrogen are analyzed. The advantages of obtaining ethylene by hydrogenation of acetylene in the liquid phase are shown and ways of increasing the selectivity of this process are considered.

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“…It has been pointed out that the more thermally stable oxygen surface groups are more effective in anchoring metal species and increasing its dispersion. The metallic dispersion on carbon support has been linked to porous structure of the activated carbon [26], the oxygen groups present on activated carbons [27] and specific interactions of metal precursors with surface defects [28].…”

Section: Introductionmentioning

confidence: 99%

Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

et al. 2020

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Glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO) was performed over activated carbon supported copper-based catalysts. The catalysts were prepared by impregnation using a pristine carbon support and thermally-treated carbon supports (450, 600, 750, and 1000 °C). The final hydrogen adsorption capacity, porous structure, and total acidity of the catalysts were found to be important descriptors to understand catalytic performance. Oxygen surface groups on the support controlled copper dispersion by modifying acidic and adsorption properties. The amount of oxygen species of thermally modified carbon supports was also found to be a function of its specific surface area. Carbon supports with high specific surface areas contained large amount of oxygen surface species, inducing homogeneous distribution of Cu species on the carbon support during impregnation. The oxygen surface groups likely acted as anchorage centers, whereby the more stable oxygen surface groups after the reduction treatment produced an increase in the interaction of the copper species with the carbon support, and determined catalytic performances.

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Influence of carbon support pretreatment on properties of Pd/C catalysts

Cited by 13 publications

References 1 publication

Pd and Ag Binary Nanoparticles Supported on Carbon Black and Tapioca for Nitrite Electrochemical Detection

Pd and Ag Binary Nanoparticles Supported on Carbon Black and Tapioca for Nitrite Electrochemical Detection

Газофазное И Жидкофазное Гидрирование Ацетилена В Обедненных И Обогащенных Смесях На Нанесенных Модифицированных Палладиевых Катализаторах

Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

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