Catalytic Chemical Vapor Deposition Synthesis of Carbon Aerogels of High-Surface Area and Porosity

Abstract

In this work carbon aerogels were synthesized by catalytic chemical vapor deposition method (CCVD). Ferrocene were employed as a source both of catalytic material (Fe) and of carbon. Gaseous hydrogen and argon were used as reductant and carrier gas, respectively. The products of reaction were collected over alumina. The morphology and textural properties of the soot produced in the reaction chamber were investigated using Scanning Electron Microscopy, High-Resolution Transmission Electron Microscopy, X-ray photoelectron spectroscopy, and N2physisorption (BET and BHJ methods). After the evaluation of the porous structure of the synthesized products, 780 ± 20 m2/g ofSBETand 0.55 ± 0.02 cm3/g ofVBJHwere found. The presence of iron carbide and the partial oxidation of carbon nanostructures were revealed by XPS.

CO2-Derived Nanocarbons with Controlled Morphology and High Specific Capacitance

“…In present research, the metallothermic CO 2 reduction was performed over a mixture of Mg with ferrocene (C 10 H 10 Fe) powder. Ferrocene was chosen because it is a widely used metal catalyst and carbon source for the preparation of carbon nanomaterials with different morphologies by chemical vapor deposition (CVD), − pyrolysis, ,− solvothermal, , and other techniques where it participates alone or in combination with other catalysts and carbon sources. In particular, it is best known for the synthesis of CNTs, − ,− but morphologies like graphene, , carbon nanospheres, , aerogels, sponges, etc.…”

Mechanism and Kinetics of the Thermal Decomposition of Fe(C5H5)2 in Inert and Reductive Atmosphere: A Synchrotron‐Assisted Investigation in A Microreactor

“…[23][24][25][26] Those functional nanomaterials are often manufactured by high yield, low-temperature methods, [14] as for instance by catalytic chemical vapor deposition (CCVD). The underlying synthesis routes and processes were extensively studied experimentally [15][16][17]19,20,[27][28] and numerically. [29][30][31][32][33][34] It can be concluded, that the hydrocarbon source has a major influence on the morphology, crystallinity, and growth kinetics of CNTs, mediated through its gas-phase decomposition products pertaining to its initial structure, [35] as well as the catalyst activity.…”

Synthesis of carbon nanostructures from coal by chemical solid synthesis method

“…1. Introduction: For over a decade, carbon nanostructures with different geometrical forms such as cylindrical (nanotubes and nanofibres), spherical (fullerene and nanosphere), flat (graphene) structures and carbon nanomeshes [1][2][3][4][5], carbon nano-onions [6], carbon nanobeads [7], carbon aerogels [8] and carbon nanocross [9] have been the source of many theoretical and experimental researches due to their extraordinary mechanical, electrical and optical properties.…”