Facile and rapid one-pot microwave-assisted synthesis of Pd-Ni magnetic nanoalloys confined in mesoporous carbons

Yuso, Alicia Martínez de; Meins, Jean‐Marc Le; Oumellal, Yassine; Paul‐Boncour, V.; Zlotea, Claudia; Ghimbeu, Camélia Matei

doi:10.1007/s11051-016-3682-9

Cited by 19 publications

(5 citation statements)

References 55 publications

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“…Mesoporous support with high surface area, highly ordered pore structure, and narrow pore‐size distribution in the range of nanometers could provide plenty of catalytic active sites as well as stabilize metal nanoparticles. Pd‐Ni alloy nanoparticles confined in mesoporous carbons were synthesized by using a novel one‐pot microwave‐assisted method . Similarly, by using an evaporation‐induced self‐assembly (EISA) and co‐impregnation method, bimetallic Pd‐Ni supported ordered mesoporous alumina was obtained .…”

Section: Recent Developments On Ni‐based Bimetallic Catalystsmentioning

confidence: 99%

A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

et al. 2017

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In recent years, CO2 reforming of methane (dry reforming of methane, DRM) has become an attractive research area because it converts two major greenhouse gasses into syngas (CO and H2), which can be directly used as fuel or feedstock for the chemical industry. Ni‐based catalysts have been extensively used for DRM because of its low cost and good activity. A major concern with Ni‐based catalysts in DRM is severe carbon deposition leading to catalyst deactivation, and a lot of effort has been put into the design and synthesis of stable Ni catalysts with high carbon resistance. One effective and practical strategy is to introduce a second metal to obtain bimetallic Ni‐based catalysts. The synergistic effect between Ni and the second metal has been shown to increase the carbon resistance of the catalyst significantly. In this review, a detailed discussion on the development of bimetallic Ni‐based catalysts for DRM including nickel alloyed with noble metals (Pt, Ru, Ir etc.) and transition metals (Co, Fe, Cu) is presented. Special emphasis has been provided on the underlying principles that lead to synergistic effects and enhance catalyst performance. Finally, an outlook is presented for the future development of Ni‐based bimetallic catalysts.

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Section: Recent Developments On Ni‐based Bimetallic Catalystsmentioning

confidence: 99%

A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

et al. 2017

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“…In general, the energy of a photon is taken up by matter and this is the way to absorption EM radiation. Thus, the EM energy is transformed into the absorber’s internal energy, for example, thermal energy or some other form of molecular energy. , The capacity of a medium to uptake EM mainly relies on some factors, such as the medium thickness, the EM wavelength, and the electronic and nuclear constitution. − As a kind of important EM absorption material, metals (such as Co, Ni, and Fe etc.) are expected to be largely applied because of its abundant reserve and low cost, whose free charge density wave on the surface can interact with the incident EM wave through a surface plasmon resonance (SPR) mechanism, as shown in Figure a.…”

Section: Introductionmentioning

confidence: 99%

Chemical Ni–C Bonding in Ni–Carbon Nanotube Composite by a Microwave Welding Method and Its Induced High-Frequency Radar Frequency Electromagnetic Wave Absorption

Sha

Gao

Wu³

et al. 2017

ACS Appl. Mater. Interfaces

133

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In this work, a microwave welding method has been used for the construction of chemical Ni-C bonding at the interface between carbon nanotubes (CNTs) and metal Ni to provide a different surface electron distribution, which determined the electromagnetic (EM) wave absorption properties based on a surface plasmon resonance mechanism. Through a serial of detailed examinations, such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, and Raman spectrum, the as-expected chemical Ni-C bonding between CNTs and metal Ni has been confirmed. And the Brunauer-Emmett-Teller and surface zeta potential measurements uncovered the great evolution of structure and electronic density compared with CNTs, metal Ni, and Ni-CNT composite without Ni-C bonding. Correspondingly, except the EM absorption due to CNTs and metal Ni in the composite, another wide and strong EM absorption band ranging from 10 to 18 GHz was found, which was induced by the Ni-C bonded interface. With a thinner thickness and more exposed Ni-C interfaces, the Ni-CNT composite displayed less reflection loss.

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“…The bottom of the reactor (reactor inlet) has a higher lattice parameter, meaning that the Pd-Ni contained more Pd in its structure, as the size of Pd atomic radius is $10% larger than Ni (atomic radius of Pd 137 pm and atomic radius of Ni 125 pm. 82 The top of the reactor (reactor outlet) contained less Pd, however the mixed metallic alloy appeared to be retained. During the reduction step the lattice parameter of this mixed phase decreased, meaning that more Ni was incorporated in its structure as the reduction of Ni containing species (mainly NiAl 2 O 4 ) proceed.…”

Section: In Situ Reductionmentioning

confidence: 99%

“…3, indicated that the major element present in the metallic alloy was Pd. 82 In addition, the phase identication of the diffraction data collected at temperatures above 780 C revealed the formation of Aer reaching 800 C, three XRD-CT datasets were collected at different positions in catalyst bed: reactor inlet, middle of reactor and reactor outlet (Fig. 4).…”

Section: Temperature Rampingmentioning

confidence: 99%

Multi-length scale 5D diffraction imaging of Ni–Pd/CeO₂–ZrO₂/Al₂O₃ catalyst during partial oxidation of methane

Matras

Vamvakeros

Jacques³

et al. 2021

J. Mater. Chem. A

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Facile and rapid one-pot microwave-assisted synthesis of Pd-Ni magnetic nanoalloys confined in mesoporous carbons

Cited by 19 publications

References 55 publications

A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

Chemical Ni–C Bonding in Ni–Carbon Nanotube Composite by a Microwave Welding Method and Its Induced High-Frequency Radar Frequency Electromagnetic Wave Absorption

Multi-length scale 5D diffraction imaging of Ni–Pd/CeO₂–ZrO₂/Al₂O₃ catalyst during partial oxidation of methane

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Facile and rapid one-pot microwave-assisted synthesis of Pd-Ni magnetic nanoalloys confined in mesoporous carbons

Cited by 19 publications

References 55 publications

A Review on Bimetallic Nickel‐Based Catalysts for CO2 Reforming of Methane

A Review on Bimetallic Nickel‐Based Catalysts for CO2 Reforming of Methane

Chemical Ni–C Bonding in Ni–Carbon Nanotube Composite by a Microwave Welding Method and Its Induced High-Frequency Radar Frequency Electromagnetic Wave Absorption

Multi-length scale 5D diffraction imaging of Ni–Pd/CeO2–ZrO2/Al2O3 catalyst during partial oxidation of methane

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A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

A Review on Bimetallic Nickel‐Based Catalysts for CO₂ Reforming of Methane

Multi-length scale 5D diffraction imaging of Ni–Pd/CeO₂–ZrO₂/Al₂O₃ catalyst during partial oxidation of methane