Carbon sulfur material and method for producing same
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsTomonari Takeuchi, Toshikatsu Kojima, Hiroyuki Kageyama
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Abstract
The present invention provides an organic sulfur material comprising carbon, hydrogen, and sulfur as constituent elements, and having peaks in the vicinity of 480 cm−1, 1250 cm−1, 1440 cm−1, and 1900 cm−1 in a Raman spectrum detected by Raman spectroscopy. The peak in the vicinity of 1440 cm−1 is the most intense peak. This organic sulfur material, which is produced by using a liquid organic starting material, achieves high capacity. This organic sulfur material preferably does not have peaks in the vicinity of 846 cm−1 or 1066 cm−1.
Claims16
A sulfur material comprising carbon, hydrogen, sulfur, oxygen, and nitrogen as constituent elements, and having a peak of 2473±0.5 eV in an S K-edge X-ray absorption fine structure spectrum, the peak being of highest intensity in the spectrum, wherein the sulfur material has a carbon content of 30 to 45 wt %, a sulfur content of 55 to 70 wt %, a hydrogen content of 0.01 to 1 wt %, an oxygen content of 0.01 to 1 wt %, and a nitrogen content of 0.01 to 1 wt %.
A method for producing a sulfur material comprising carbon, hydrogen, sulfur, oxygen, and nitrogen as constituent elements, and having a peak of 2473±0.5 eV in an S K-edge X-ray absorption fine structure spectrum, the peak being of highest intensity in the spectrum and the sulfur material having a carbon content of 30 to 45 wt %, a sulfur content of 55 to 70 wt %, a hydrogen content of 0.01 to 1 wt %, an oxygen content of 0.01 to 1 wt %, and a nitrogen content of 0.01 to 1 wt %,
- the method comprising the step of subjecting a solution containing a sulfur-containing starting material and at least one member selected from the group consisting of linear or branched alcohols, linear or branched carboxylic acids, and linear or branched aldehydes to heat treatment in an inert atmosphere.
Dependencies are inferred from the claim text.