Sulfonated amorphous carbon, process for producing the same and use thereof
First Claim
1. A proton conductor material comprising a sulfonated amorphous carbon, whereinthe sulfonated amorphous carbon has a sulfonate density of 1.6 to 8 mmol/g,in the sulfonated amorphous carbon, chemical shifts of a condensed aromatic carbon 6-membered ring and a condensed aromatic carbon 6-membered ring having a sulfonate group bonded thereto are detected in a 13C nuclear magnetic resonance spectrum,at least a diffraction peak of carbon (002) face whose half-value width (2θ
- ) is in the range of 5 to 30 is detected in powder X-ray diffractometry, andthe sulfonated amorphous carbon exhibits proton conductivity.
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Abstract
An amorphous carbon having sulfonate group introduced therein is provided which is characterized in that chemical shifts of a condensed aromatic carbon 6-membered ring and a condensed aromatic carbon 6-membered ring having sulfonate group bonded thereto are detected in a 13C nuclear magnetic resonance spectrum and that at least a diffraction peak of carbon (002) face whose half-value width (2θ) is in the range of 5 to 30° is detected in powder X-ray diffractometry, and which exhibits proton conductivity. This sulfonated amorphous carbon is very useful as a proton conductor material or solid acid catalyst because it excels in proton conductivity, acid catalytic activity, thermal stability and chemical stability and can be produced at low cost.
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Citations
17 Claims
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1. A proton conductor material comprising a sulfonated amorphous carbon, wherein
the sulfonated amorphous carbon has a sulfonate density of 1.6 to 8 mmol/g, in the sulfonated amorphous carbon, chemical shifts of a condensed aromatic carbon 6-membered ring and a condensed aromatic carbon 6-membered ring having a sulfonate group bonded thereto are detected in a 13C nuclear magnetic resonance spectrum, at least a diffraction peak of carbon (002) face whose half-value width (2θ - ) is in the range of 5 to 30 is detected in powder X-ray diffractometry, and
the sulfonated amorphous carbon exhibits proton conductivity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- ) is in the range of 5 to 30 is detected in powder X-ray diffractometry, and
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11. A sulfonated amorphous carbon wherein chemical shifts of a condensed aromatic carbon 6-membered ring and a condensed aromatic carbon 6-membered ring having a sulfonate group bonded thereto are detected in a 13C nuclear magnetic resonance spectrum and that at least a diffraction peak of carbon (002) face whose half-value width (2θ
- ) is in the range of 5 to 30 is detected in powder X-ray diffractometry, the sulfonated amorphous carbon exhibiting proton conductivity and wherein the sulfonated amorphous carbon has a sulfonate density of 1.6 to 8 mmol/g.
- View Dependent Claims (12, 13, 14, 15, 16, 17)
Specification