Ultra-lightweight graphene-HBN nanoparticle aerogels
AssigneesThe Trustees of Princeton University, Shandong Lutai Holding Group Co. Ltd
InventorsRodney D. Priestley, Craig B. Arnold, Hejun Li, Sehmus Ozden
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Abstract
Ultra-lightweight aerogels and methods for fabricating such aerogels from ammonia borane and a support structure, where the support structure is either two-dimensional nanostructures, or hydrocarbon polymer colloids. The components are mixed, then annealed. The properties of the disclosed aerogels can be tuned by controlling the ratio between the support structure and the ammonia borane, or by infiltrating the aerogels with additives.
Claims14
A method for creating an aerogel, comprising:
- forming a mixture of solid ammonia borane and either (a) a two-dimensional nanostructured material or (b) hydrocarbon polymer colloids;
- allowing the mixture to self-assemble to form a plurality of hybrid particles, where an average particle size of the plurality of hybrid particles is less than 30 μm;
- and
- annealing the plurality of hybrid particles at a first temperature to form the aerogel.
A method for creating an aerogel, comprising:
- forming a mixture of solid ammonia borane and either (a) a two-dimensional nanostructured material or (b) hydrocarbon polymer colloids;
- allowing the mixture to self-assemble to form a plurality of hybrid particles;
- and
- annealing the plurality of hybrid particles at a first temperature of between 1000 degrees C. and 1500 degrees C., then reducing the temperature to a second temperature of between 500 and 700 degrees C. and annealing at the second temperature in air, to form the aerogel.
A method for creating an aerogel, comprising:
- determining a ratio of an oxide which is a two-dimensional nanostructured material to ammonia borane used to prepare the aerogel based on a target density of the aerogel;
- forming a mixture of solid ammonia borane and
- the oxide which is the two-dimensional nanostructured material;
- allowing the mixture to self-assemble to form a plurality of hybrid particles;
- and
- annealing the plurality of hybrid particles at a first temperature to form the aerogel.
Dependencies are inferred from the claim text.