Caroline E Clifford

US Patent:

20070148080, Jun 28, 2007

Filed:

Dec 20, 2006

Appl. No.:

11/613968

Inventors:

Angela Lueking - State College PA, US
Humberto Gutierrez - State College PA, US
Deepa Narayanan - Redmond WA, US
Caroline Burgess Clifford - State College PA, US
Dirk Van Essendelft - Hudsonville MI, US
Puja Jain - King Of Prussia PA, US

Assignee:

The Penn State Research Foundation - University Park PA

International Classification:

C01B 31/06

US Classification:

423446000

Abstract:

Methods of synthesizing a diamond material, particularly nanocrystalline diamond, diamond-like carbon and bucky diamond are provided. In particular embodiments, a composition including a carbon source, such as coal, is subjected to addition of energy, such as high energy reactive milling, producing a milling product enriched in hydrogenated tetrahedral amorphous diamond-like carbon compared to the coal. A milling product is treated with heat, acid and/or base to produce nanocrystalline diamond and/or crystalline diamond-like carbon. Energy is added to produced crystalline diamond-like carbon in particular embodiments to produce bucky diamonds.