An advanced method to manufacture hierarchically structured carbide-derived carbon monoliths

Fey, Tobias; Zierath, Bodo; Kern, Andreas; Greil, Peter; Etzold, Bastian J. M.

doi:10.1016/j.carbon.2013.12.052

Cited by 15 publications

(8 citation statements)

References 38 publications

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“…Macroporous carbide monoliths were prepared according to the method explained in 30. Briefly, a mixture of metal powder (Si or Ti), novolac phenolic resin, and biomorphous carbon fibers (prepared from cellulose) is uni‐axially hot‐pressed at 180 °C and then pyrolyzed at 950 °C under N 2 atmosphere.…”

Section: Methodsmentioning

confidence: 99%

“…In the following, the in situ thermal and catalytic graphitization of biomorphic derived hierarchically structured CDC monoliths 30 stemming from different TiC and SiC precursor compositions is studied. This allows the examination of the influence of composition and graphitization on the effective electrical and thermal conductivity of the monoliths.…”

Section: Introductionmentioning

confidence: 99%

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Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths

et al. 2016

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The influence of graphitization and composition of carbide-derived carbon (CDC) monoliths on the electrical and thermal conductivity was investigated. Carbon monoliths with varying porosities were synthesized employing biomorphous macroporous TiC and SiC as precursors. Graphitization was carried out in situ during high-temperature chlorination with and without addition of nickel, iron, and cobalt chloride to the carbide. The graphitized monoliths showed improved properties. The results demonstrate that despite graphitic carbon also glass-like carbon, stemming from the carbide synthesis, increases the thermal and electrical conductivity significantly.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths

et al. 2016

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“…Independent of the pore structure, adsorption capacity on both carbons follows the same linear correlation and increases with the amount of oxygen present on the surface. As a strong hint that this correlation is valid for wet‐chemically oxidized carbons of other origin and geometry as well, data points obtained for monolithic SiC‐CDC prepared according to the method described in 30 and TiC‐CDC powder 9 can also be found on this line.…”

Section: Resultsmentioning

confidence: 57%

Adsorption of Nickel Ions on Oxygen‐Functionalized Carbons

et al. 2016

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The adsorption of nickel(II) ions on pristine and wet‐chemically oxidized microporous carbons is studied. The nature and acidity of the resulting oxygen functional groups are characterized by temperature‐programmed desorption and point of zero charge measurements. The maximal nickel ion adsorption capacity of the resulting high‐affinity Langmuir‐type adsorption equilibrium is strongly influenced by the oxidative pretreatment. At maximum, loadings of 7.5 wt % could be obtained for carbons showing oxygen content of 12.5 mmol g−1. A linear correlation of the ion uptake with the surface oxygen content could be deduced. In a kinetic study, it could be proved that the uptake of nickel at room temperature is a slow process and that the time for adsorption is independent of oxygen content, carbon type, and nickel loading.

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“…Heating the carbonized preform to 1 573 K in vacuum for 180 min caused the Si to react with C to form SiC which is distinguished by a highly interconnected pore structure. Details of the SiC substrate fabrication are given in Fey et al…”

Section: Methodsmentioning

confidence: 99%

Adjustment of the Optical Properties of Dispersion Derived Carbon Nanotube Coatings

et al. 2015

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Porous carbon nanotube coatings for potential solar thermal receiver applications were generated on silicon carbide via an infiltration process from an aqueous dispersion. A screening evaluation was applied to generate carbon nanotube coatings with enhanced absorption, i.e., reduced reflection of solar wavelength spectra from 2 500-500 nm. Structures with low density nanotube packing with a total reflectance <2% were fabricated from a low concentration dispersion of sterically stabilized (PVP) carbon nanotubes. Though the optical performance is lower when compared to carbon nanotube coatings generated by CVD, the filtration method offers control of the nanotube pore structure over a wide range, a greater flexibility with regards to substrate geometry and excellent up-scaling capability. B. Weisenseel, Prof. P. Greil Energy Campus N€ urnberg, F€ urther Str. 250, 90429, N€ urnberg, Germany [**] The authors thank the Energie Campus N€ urnberg for providing services and facilities and financial support through the "Bavaria on the Move" initiative of the state of Bavaria. Furthermore, support from DFG Reinhart Koselleck project GR 961/32 and DFG FE 1209/1 is gratefully acknowledged. 624 wileyonlinelibrary.com

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An advanced method to manufacture hierarchically structured carbide-derived carbon monoliths

Cited by 15 publications

References 38 publications

Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths

Thermal and Electrical Conductivity of Amorphous and Graphitized Carbide‐Derived Carbon Monoliths

Adsorption of Nickel Ions on Oxygen‐Functionalized Carbons

Adjustment of the Optical Properties of Dispersion Derived Carbon Nanotube Coatings

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