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Title: Hydrogen Purification in Palladium-Based Membranes: An Operando X-ray Diffraction Study

Abstract

Palladium (Pd)-based membranes are highly selective to H 2, compact, and operationally flexible, and they could facilitate efficient and on-demand production of H 2 as a clean energy carrier. For the first time, we designed an operando X-ray diffraction (XRD) experiment to study a dense Pd membrane during H 2 permeation at typical operating conditions (e.g., 280–440 °C and 1–3 bar pressure difference). By correlating the lattice structure of a metallic membrane with its gas-separation performance in real time, the operando XRD experiment could serve as a diagnostic tool for research on high-temperature gas-separation membranes. As a proof-of-concept study, we simultaneously collected H 2-flux and transmission-XRD measurements, from which we calculated key hydrogen-transport properties, including permeability, solubility, and diffusivity. We also showed that the Pd lattice remained in the α phase throughout the operating conditions investigated. Furthermore these results are in reasonable agreement with the literature.

Authors:
ORCiD logo [1];  [2];  [3];  [4]; ORCiD logo [3]; ORCiD logo [4]
  1. Stanford Univ., Stanford, CA (United States)
  2. Applied Materials, Sunnyvale, CA (United States)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Worcester Polytechnic Institute, Worcester, MA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1503641
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Industrial and Engineering Chemistry Research
Additional Journal Information:
Journal Volume: 58; Journal Issue: 2; Journal ID: ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Yuan, Mengyao, Lee, Kyoungjin, Van Campen, Douglas G., Liguori, Simona, Toney, Michael F., and Wilcox, Jennifer. Hydrogen Purification in Palladium-Based Membranes: An Operando X-ray Diffraction Study. United States: N. p., 2018. Web. doi:10.1021/acs.iecr.8b05017.
Yuan, Mengyao, Lee, Kyoungjin, Van Campen, Douglas G., Liguori, Simona, Toney, Michael F., & Wilcox, Jennifer. Hydrogen Purification in Palladium-Based Membranes: An Operando X-ray Diffraction Study. United States. doi:10.1021/acs.iecr.8b05017.
Yuan, Mengyao, Lee, Kyoungjin, Van Campen, Douglas G., Liguori, Simona, Toney, Michael F., and Wilcox, Jennifer. Thu . "Hydrogen Purification in Palladium-Based Membranes: An Operando X-ray Diffraction Study". United States. doi:10.1021/acs.iecr.8b05017.
@article{osti_1503641,
title = {Hydrogen Purification in Palladium-Based Membranes: An Operando X-ray Diffraction Study},
author = {Yuan, Mengyao and Lee, Kyoungjin and Van Campen, Douglas G. and Liguori, Simona and Toney, Michael F. and Wilcox, Jennifer},
abstractNote = {Palladium (Pd)-based membranes are highly selective to H2, compact, and operationally flexible, and they could facilitate efficient and on-demand production of H2 as a clean energy carrier. For the first time, we designed an operando X-ray diffraction (XRD) experiment to study a dense Pd membrane during H2 permeation at typical operating conditions (e.g., 280–440 °C and 1–3 bar pressure difference). By correlating the lattice structure of a metallic membrane with its gas-separation performance in real time, the operando XRD experiment could serve as a diagnostic tool for research on high-temperature gas-separation membranes. As a proof-of-concept study, we simultaneously collected H2-flux and transmission-XRD measurements, from which we calculated key hydrogen-transport properties, including permeability, solubility, and diffusivity. We also showed that the Pd lattice remained in the α phase throughout the operating conditions investigated. Furthermore these results are in reasonable agreement with the literature.},
doi = {10.1021/acs.iecr.8b05017},
journal = {Industrial and Engineering Chemistry Research},
number = 2,
volume = 58,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
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This content will become publicly available on December 20, 2019
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