Back to results
US 2014/0272447 A1Published application
Method to control void formation in nanomaterials using core/alloy nanoparticles with stainless interfaces
AssigneeSyracuse University
InventorsMathew M. Maye, Wenjie Wu
Life of this patent
Estimating the term…
Abstract
The present invention describes the use of nanoparticle interfaces to chemically process solid nanomaterials into ones with tailorable core-void-shell architectures. The internal void sizes are proportional to the nanoparticle size, the shell thickness and composition, and can be either symmetric or asymmetric depending on the nature of the interface, each of which is controlled by the process of making.
Claims21
A nanoparticle, comprising layers of:
- an iron core;
- a chromium alloy shell forming an outer oxide interface rich in chromium;
- a defined void between said iron core and said interface.
A method of forming a nanoparticle, comprising the steps of:
- providing an iron core;
- depositing a chromium shell onto said iron core;
- annealing at high temperature forming a iron-chromium interface between core and shell;
- oxidizing said nanoparticle to form at least one void between said shell and said core.
1 more element
Dependencies are inferred from the claim text.