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US 9,751,076 B1Granted
Synthesis of nano crystalline niobia/carbon composites with improved hydrothermal stability
AssigneeStc.Unm
InventorsHaifeng Xiong, Abhaya Datye
Life of this patent
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Abstract
Novel transition element-embedded carbon materials and methods for forming the same. The embedded transition elements can be oxides or hydroxides and may include a transition metal. In some cases the transition element-embedded materials are catalytic material suitable for use in a variety of catalytic systems. According to one specific example, the transition element that is embedded is a niobia species.
Claims15
A method for preparing a transition element carbon composite material comprising:
- mixing a compound comprising a transition element with a precipitating agent in a sugar-containing solution at a high enough temperature and for a long enough time that the transition element precipitates to yield a hydroxide and/or oxide while the sugar simultaneously undergoes hydrothermal carbonization;
- and
- heat treating the mixture to form a particulate transition element/carbon material having embedded transition element hydroxide and/or oxide species highly and evenly dispersed through the carbon particles.
Dependencies are inferred from the claim text.