Published in:
Angewandte Chemie International Edition, 54 (2015) 18, Seite 5507-5512
Language:
English
DOI:
10.1002/anie.201411685
ISSN:
1433-7851;
1521-3773
Origination:
Footnote:
Description:
AbstractA combination of ionothermal synthesis and hot‐injection techniques leads to novel nanocarbons made from organic solvents. Controlled addition of commonly used organic solvents into a hot ZnCl2 melt gives rise to spherical, sheetlike, and branched nanofibrous carbon nanoparticles with surprisingly high carbon efficiency. When heteroatom‐containing solvents were used, the doping levels reach up to 14 wt. % nitrogen and 13 wt. % sulfur. Materials with high surface areas and large pore volumes of solvent carbons as high as 1666 m2 g−1 and 2.80 cm3 g−1 in addition to CO2 adsorption capacities of 4.13 mmol g−1 at 273 K and 1 bar can be obtained. The new method works not only for pure carbon materials, but was also extended for the synthesis of carbon/inorganic nanocomposites. ZnS@C, Ni@C, and Co@C were successfully prepared with this straightforward procedure. The obtained Ni@C nanocomposites perform well in the electrocatalytic water oxidation, comparable with commercial noble‐metal catalysts.