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Fang S, Brinkman K, Chen F. Unprecedented CO2-promoted hydrogen permeation in Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) membrane. ACS Appl Mater Interfaces. 2013;6(1):725-30doi: 10.1021/am405169d.
Fang, S., Brinkman, K., & Chen, F. (2014). Unprecedented CO2-promoted hydrogen permeation in Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) membrane. ACS applied materials & interfaces, 6(1), 725-30. https://doi.org/10.1021/am405169d
Fang, Shumin, et al. "Unprecedented CO2-promoted hydrogen permeation in Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) membrane." ACS applied materials & interfaces vol. 6,1 (2014): 725-30. doi: https://doi.org/10.1021/am405169d
Fang S, Brinkman K, Chen F. Unprecedented CO2-promoted hydrogen permeation in Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) membrane. ACS Appl Mater Interfaces. 2014 Jan 08;6(1):725-30. doi: 10.1021/am405169d. Epub 2013 Dec 20. PMID: 24328190.
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ACS Appl Mater Interfaces. 2014 Jan 08;6(1):725-30. doi: 10.1021/am405169d. Epub 2013 Dec 20.

Unprecedented CO2-promoted hydrogen permeation in Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) membrane.

ACS applied materials & interfaces

Shumin Fang, Kyle Brinkman, Fanglin Chen

Affiliations

  1. Department of Mechanical Engineering, University of South Carolina , Columbia, South Carolina 29208, United States.

PMID: 24328190 DOI: 10.1021/am405169d

Abstract

Conventional Ni-BaCeO3-based membranes possess high hydrogen permeation flux but suffer serious flux degradation in CO2-containing atmosphere because of the formation of BaCO3 insulating layer. In this work, we report a novel Ni-BaZr0.1Ce0.7Y0.1Yb0.1O(3-δ) (Ni-BZCYYb) membrane, capable of both high hydrogen permeation flux and stable performance in CO2-containing atmosphere at 900 °C. Most importantly, the flux is found to be promoted rather than being diminished by CO2 normally observed for other high temperature proton conductors. The flux enhancement in Ni-BZCYYb membrane is attributed to the increase of moisture content in feed gas. When CO2 is introduced, the reverse water-gas shift reaction takes place generating H2O and CO. This work demonstrates that CO2 can be beneficial rather than detrimental for hydrogen permeation membranes that possess high chemical stability.

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