Patent · US Active

Method of fabricating nanoporous metal structure

US10612152B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

CITY UNIVERSITY OF HONG KONG · CN

Inventors

Yi Xu · 东风镇, CN
Pak-Man Yiu · New Taipei, TW
Chan Hung Shek · Kowloon, CN

Key dates

Filing date	Nov 18, 2016
Grant date	Apr 7, 2020
Priority date	—
Expiry date	Jun 7, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method of fabricating a nanoporous metal structure, such as a nanoporous metal (NMP) supported Pd catalyst suitable for use in a direct methanol fuel cell (DMFC), is includes the steps of (a) providing a piece of Au55Cu25Si20 alloy glass ribbon with a thickness of 50 μm, (b) dealloying the piece of alloy glass ribbon by reacting with iron (III) chloride solution to form a free-standing NPM ribbon, (c) depositing a thin film of PdCo of a thickness of 100 nm on the NPM ribbon by RF magnetron sputtering with Pd0.5Co0.5 (atomic percent) as target in an argon atmosphere, and (d) electrochemically dissolving some of the Co on the thin film of PdCo to induce migration of Au from the NPM ribbon to the thin layer of PdCo.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.