A scalable chemical vapor deposition synthesis of high purity hollow carbon onions

Features of Onion-Like Carbon Obtained in the Process of Partial Oxidation of Natural Gas

“…Key words: onion-like carbon, nanotube, partial oxidation, Raman spectroscopy, trans-polyacetylene [7][8][9][10], каталитическое осаждение из газовой фазы [11][12][13], сольвотермический метод [14], синтез в пламени [15][16][17][18][19]. Структура и свойства УЛС меняются в зависимости от способа получения.…”

Fabrication of ultra-bright carbon nano-onions via a one-step microwave pyrolysis of fish scale waste in seconds

“…18 In CVD systems, the decomposition of ethylene gas with magnesium–oxide-supported cobalt as the catalyst was utilized for the generation of CNOs. 19 Furthermore, through carbon ion implantation into a polycrystalline silver substrate target at a constant temperature of 500 °C, a CNO thin film was obtained. 20 Estrada-Guel et al reported the preparation of CNO through a mechanochemically initiated reaction between graphite powder and an aluminium catalyst through high-energy ball-milling for 1 h, followed by a leaching process with hydrochloric acid; however, the obtained CNOs exhibited poor crystallization and a large, hollow center.…”

Nitrogen-doped porous carbon nanosheets as a robust catalyst for tunable CO2 electroreduction to syngas

“…Currently, although there have been some methods which aim to prepare heteroatom-doped 2D carbon or porous carbon materials, the methods are expensive and have complex methodologies. 39–42 Therefore, developing a simple and large-scale methodology for synthesising advanced nanostructured metal-free carbon materials with controllable chemical composition, 2D structure and porosity is in urgent demand for use as a tunable electrochemical CO 2 -to-syngas process.…”