The role of nanosized nickel particles in microwave-assisted dry reforming of lignin

Цодиков, М. В.; Эллерт, О.Г.; Николаев, С. А.; Арапова, О. В.; Konstantinov, G. I.; Bukhtenko, O. V.; Vasil’kov, A. Yu.

doi:10.1016/j.cej.2016.10.031

Cited by 40 publications

(8 citation statements)

References 57 publications

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“…Nickel-impregnated kraft lignin (14% ash) was prepared by either the careful addition of nickel nitrate solution, or by adsorption of colloidal nickel from its suspension [80]. Since the heating was by microwave, a carbon adsorbent was added, but even so, the heating rates were modest at 10 C/s.…”

Section: Other Metalsmentioning

confidence: 99%

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

Nzihou

Stanmore

Lyczko

et al. 2019

Energy

129

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Relevant literature which deals with the presence of metals during the catalytic pyrolysis of biomass is reviewed. Only those conditions where the metal was in intimate contact with the biomass components are included. Cellulose, hemicellulose and lignin all fuse during the early stages of pyrolytic heating and the dehydration and decomposition processes begin during this transition. Hemicelluloses such as xylan are more labile and difficult to isolate, whereas both cellulose and lignin produce mostly bio-oils when demineralised and flash pyrolysed. The dominant primary products from 'pure' cellulose are anhydrosugars as well as smaller oxygenates. Lignin gives aromatics based on the syringol and guiacol molecules. The alkali and alkaline earth metals are found to curtail the yield of bio-oil and modify product distribution, even in the low concentrations naturally found in biomass. All other metals act to catalyse cross-linking reactions, with the nickel and zinc most studied. The electropositivity of the metal tends to correlate with the extent of catalytic activity. The presence of metals causes little change to the production of gases, but more char is formed at the expense of liquids. If the aim of pyrolysis is bio-oil for fuel, prewashing of biomass to remove metals is beneficial.

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Section: Other Metalsmentioning

confidence: 99%

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

Nzihou

Stanmore

Lyczko

et al. 2019

Energy

129

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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

136

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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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“…A typical MVS reactor [1][2][3][4] has an evacuated volume of 5 l. Nickel or cobalt samples (0.3-0.5 g) are evaporated into vacuum of 10 -2 Ра with a W evaporator.…”

Section: Methodsmentioning

confidence: 99%

Hybrid magnetic materials based on polyethylene containing co and ni nanoparticles

Vasil’kov

Budnikov

Naumkin

2018

CAN

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New hybrid magnetic materials based on HDPE filled with Со and Ni nanoparticles have been prepared via the metal vapor synthesis. Properties of the metal-polymer composites have been elucidated as a function of MVS parameters and metal nature. The Faraday method has been applied to characterize the magnetic properties of the systems. The microstructure of the samples has been studied with a number of X-ray and synchrotron techniques, including XRD, EXAFS and SAXS. Core-level and valence band spectra were measured by XPS. The peak at binding energy of 282.8 eV characteristic of C-Ni bond was recorded in the C 1s spectrum. It was shown that properties of nanocomposite materials with similar compositions are determined both by the synthesis conditions and post-synthesis factors.

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The role of nanosized nickel particles in microwave-assisted dry reforming of lignin

Cited by 40 publications

References 57 publications

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review

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

Hybrid magnetic materials based on polyethylene containing co and ni nanoparticles

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