Graphene-ceramic composite membrane for hydrogen separation membranes

US10899613B2 · kind B2 · utility

Assignees

• UNIVERSITY OF SOUTH CAROLINA · US
• CLEMSON UNIVERSITY RESEARCH FOUNDATION · US

Inventors

• Fanglin Chen · Irmo, US
• Shumin Fang · Lexington, US
• Kyle S. Brinkman · Clemson, US
• Siwei Wang · Columbia, US
• Jian He · Blue Bell, US
• Yufei Liu · Nanhu, CN

Key dates

• Filing date: Oct 12, 2018
• Grant date: Jan 26, 2021
• Expiry date: Mar 27, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/80
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A hydrogen permeation membrane is provided that can include a carbon-based material (C) and a ceramic material (BZCYT) mixed together. The carbon-based material can include graphene, graphite, carbon nanotubes, or a combination thereof. The ceramic material can have the formula BaZr1-x-y-zCexYyTzO3-δ, where 0≤x≤0.5, 0≤y≤0.5, 0≤z≤0.5, (x+y+z)>0; 0≤δ≤0.5, and T is Yb, Sc, Ti, Nb, Ta, Mo, Mn, Fe, Co, Ni, Cu, Zn, Ga, In, or a combination thereof. In addition, the BZYCT can be present in the C-BZCYT mixture in an amount ranging from about 40% by volume to about 80% by volume. Further, a method of forming such a membrane is also provided. A method is also provided for extracting hydrogen from a feed stream.