Functional nanoscale metal oxides for stable metal single atom and cluster catalysts
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorsJingyue Liu, Xu Li
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Abstract
A nanocomposite catalyst includes a support, a multiplicity of nanoscale metal oxide clusters coupled to the support, and one or more metal atoms coupled to each of the nanoscale metal oxide clusters. Fabricating a nanocomposite catalyst includes forming nanoscale metal oxide clusters including a first metal on a support, and depositing one or more metal atoms including a second metal on the nanoscale metal oxide clusters. The nanocomposite catalyst is suitable for catalyzing reactions such as CO oxidation, water-gas-shift, reforming of CO2 and methanol, and oxidation of natural gas.
Claims21
1-21. (canceled)
A method of synthesizing a nanocomposite catalyst, the method comprising:
- combining a particulate support and nanoscale metal oxide particles with an aqueous solution to form a mixture;
- combining a solution comprising a metal precursor with the mixture to yield a precursor solution;
- aging the precursor solution;
- separating a precipitate from the precursor solution;
- and
- annealing the precipitate to yield the nanocomposite catalyst, wherein the nanocomposite catalyst comprises a single metal atom from the metal precursor or a cluster of metal atoms from the metal precursor adhered to particles of the metal oxide.
Dependencies are inferred from the claim text.