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Title: Composite mixed oxide ionic and electronic conductors for hydrogen separation

Abstract

A mixed ionic and electronic conducting membrane includes a two-phase solid state ceramic composite, wherein the first phase comprises an oxygen ion conductor and the second phase comprises an n-type electronically conductive oxide, wherein the electronically conductive oxide is stable at an oxygen partial pressure as low as 10.sup.-20 atm and has an electronic conductivity of at least 1 S/cm. A hydrogen separation system and related methods using the mixed ionic and electronic conducting membrane are described.

Inventors:
 [1];  [2];  [3];  [4]
  1. Westborough, MA
  2. Dover, MA
  3. Quincy, MA
  4. Allston, MA
Issue Date:
Research Org.:
Trustees of Boston University (Boston, MA)
Sponsoring Org.:
USDOE
OSTI Identifier:
988821
Patent Number(s):
7588626
Application Number:
11/255,650
Assignee:
Trustees of Boston University (Boston, MA)
Patent Classifications (CPCs):
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
FC26-03NT41958
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN

Citation Formats

Gopalan, Srikanth, Pal, Uday B, Karthikeyan, Annamalai, and Hengdong, Cui. Composite mixed oxide ionic and electronic conductors for hydrogen separation. United States: N. p., 2009. Web.
Gopalan, Srikanth, Pal, Uday B, Karthikeyan, Annamalai, & Hengdong, Cui. Composite mixed oxide ionic and electronic conductors for hydrogen separation. United States.
Gopalan, Srikanth, Pal, Uday B, Karthikeyan, Annamalai, and Hengdong, Cui. Tue . "Composite mixed oxide ionic and electronic conductors for hydrogen separation". United States. https://www.osti.gov/servlets/purl/988821.
@article{osti_988821,
title = {Composite mixed oxide ionic and electronic conductors for hydrogen separation},
author = {Gopalan, Srikanth and Pal, Uday B and Karthikeyan, Annamalai and Hengdong, Cui},
abstractNote = {A mixed ionic and electronic conducting membrane includes a two-phase solid state ceramic composite, wherein the first phase comprises an oxygen ion conductor and the second phase comprises an n-type electronically conductive oxide, wherein the electronically conductive oxide is stable at an oxygen partial pressure as low as 10.sup.-20 atm and has an electronic conductivity of at least 1 S/cm. A hydrogen separation system and related methods using the mixed ionic and electronic conducting membrane are described.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

Works referenced in this record:

Gd[sub 0.2]Ce[sub 0.8]O[sub 1.9]-Y[sub 0.08]Sr[sub 0.88]Ti[sub 0.95]Al[sub 0.05]O[sub 3+δ] Composite Mixed Conductors for Hydrogen Separation
journal, January 2005


A natural gas-assisted steam electrolyzer for high-efficiency production of hydrogen
journal, May 2003


Oxidation of Hydrogen on Ni/Yttria-Stabilized Zirconia Cermet Anodes
journal, January 1997


Electrocatalytic properties of La 0.9 Sr 0.1 MnO 3 -based electrodes for oxygen reduction
journal, August 2002


Polarization Study on Doped Lanthanum Gallate Electrolyte Using Impedance Spectroscopy
journal, June 2004