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Functionalized graphene-Pt composites for fuel cells and photoelectrochemical cells

United States Patent

9,748,581
August 29, 2017
View the Complete Patent at the US Patent & Trademark Office
A method of growing crystals on two-dimensional layered material is provided that includes reversibly hydrogenating a two-dimensional layered material, using a controlled radio-frequency hydrogen plasma, depositing Pt atoms on the reversibly hydrogenated two-dimensional layered material, using Atomic Layer Deposition (ALD), where the reversibly hydrogenated two-dimensional layered material promotes loss of methyl groups in an ALD Pt precursor, and forming Pt-O on the reversibly hydrogenated two-dimensional layered material, using combustion by O.sub.2, where the Pt-O is used for subsequent Pt half-cycles of the ALD process, where growth of Pt crystals occurs.
Diankov; Georgi (Millbrae, CA), An; Jihwan (Seoul, KR), Park; Joonsuk (Stanford, CA), Goldhaber; David J. K. (Palo Alto, CA), Prinz; Friedrich B. (Woodside, CA)
The Board of Trustees of the Leland Stanford Junior University (Palo Alto, CA)
14/ 634,791
20150247258
February 28, 2015
STATEMENT OF GOVERNMENT SPONSORED SUPPORT This invention was made with Government support under contract no. DE-SC0001060 awarded by the Department of Energy. The Government has certain rights in the invention.