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Title: In-situ/operando X-ray characterization of metal hydrides

Abstract

Here in this article, the capabilities of soft and hard X-ray techniques, including X-ray absorption (XAS), soft X-ray emission spectroscopy (XES), resonant inelastic soft X-ray scattering (RIXS), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD), and their application to solid-state hydrogen storage materials are presented. These characterization tools are indispensable for interrogating hydrogen storage materials at the relevant length scales of fundamental interest, which range from the micron scale to nanometer dimensions.Since nanostructuring is now well established as an avenue to improve the thermodynamics and kinetics of hydrogen release and uptake, due to properties such as reduced mean free paths of transport and increased surface-to-volume ratio, it becomes of critical importance to explicitly identify structure-property relationships on the nanometer scale. X-ray diffraction and spectroscopy are effective tools for probing size-, shape-, and structure-dependent material properties at the nanoscale. This article also discusses the recent development of in-situ soft X-ray spectroscopy cells, which enable investigation of critical solid/liquid or solid/gas interfaces under more practical conditions. These unique tools are providing a window into the thermodynamics and kinetics of hydrogenation and dehydrogenation reactions and informing a quantitative understanding of the fundamental energetics of hydrogen storage processes at the microscopic level. In particular,more » in-situ soft X-ray spectroscopies can be utilized to probe the formation of intermediate species, byproducts, as well as the changes in morphology and effect of additives, which all can greatly affect the hydrogen storage capacity, kinetics, thermodynamics, and reversibility.A few examples using soft X-ray spectroscopies to study these materials are discussed to demonstrate how these powerful characterization tools could be helpful to further understand the hydrogen storage systems.« less

Authors:
 [1];  [2];  [3];  [1];  [4];  [3];  [3]; ORCiD logo [2];  [5]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry
  3. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry; Korea Advanced Inst. of Science and Technology (KAIST), Daejeon, (South Korea). Dept. of Chemical and Biomolecular Engineering
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source; Univ. of California, Santa Cruz, CA (United States). Dept. of Chemistry and Biochemistry
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1496974
Alternate Identifier(s):
OSTI ID: 1502276
Report Number(s):
SAND-2019-1392J; SAND-2019-8426J
Journal ID: ISSN 1439-4235; 672417
Grant/Contract Number:  
AC04-94AL85000; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
ChemPhysChem
Additional Journal Information:
Journal Volume: 20; Journal Issue: 10; Journal ID: ISSN 1439-4235
Publisher:
ChemPubSoc Europe
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Liu, Yi-Sheng, Jeong, Sohee, White, James, Feng, Xuefei, Cho, Eun Seon, Stavila, Vitalie, Allendorf, Mark, Urban, Jeffrey, and Guo, Jinghua. In-situ/operando X-ray characterization of metal hydrides. United States: N. p., 2019. Web. doi:10.1002/cphc.201801185.
Liu, Yi-Sheng, Jeong, Sohee, White, James, Feng, Xuefei, Cho, Eun Seon, Stavila, Vitalie, Allendorf, Mark, Urban, Jeffrey, & Guo, Jinghua. In-situ/operando X-ray characterization of metal hydrides. United States. doi:10.1002/cphc.201801185.
Liu, Yi-Sheng, Jeong, Sohee, White, James, Feng, Xuefei, Cho, Eun Seon, Stavila, Vitalie, Allendorf, Mark, Urban, Jeffrey, and Guo, Jinghua. Fri . "In-situ/operando X-ray characterization of metal hydrides". United States. doi:10.1002/cphc.201801185.
@article{osti_1496974,
title = {In-situ/operando X-ray characterization of metal hydrides},
author = {Liu, Yi-Sheng and Jeong, Sohee and White, James and Feng, Xuefei and Cho, Eun Seon and Stavila, Vitalie and Allendorf, Mark and Urban, Jeffrey and Guo, Jinghua},
abstractNote = {Here in this article, the capabilities of soft and hard X-ray techniques, including X-ray absorption (XAS), soft X-ray emission spectroscopy (XES), resonant inelastic soft X-ray scattering (RIXS), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD), and their application to solid-state hydrogen storage materials are presented. These characterization tools are indispensable for interrogating hydrogen storage materials at the relevant length scales of fundamental interest, which range from the micron scale to nanometer dimensions.Since nanostructuring is now well established as an avenue to improve the thermodynamics and kinetics of hydrogen release and uptake, due to properties such as reduced mean free paths of transport and increased surface-to-volume ratio, it becomes of critical importance to explicitly identify structure-property relationships on the nanometer scale. X-ray diffraction and spectroscopy are effective tools for probing size-, shape-, and structure-dependent material properties at the nanoscale. This article also discusses the recent development of in-situ soft X-ray spectroscopy cells, which enable investigation of critical solid/liquid or solid/gas interfaces under more practical conditions. These unique tools are providing a window into the thermodynamics and kinetics of hydrogenation and dehydrogenation reactions and informing a quantitative understanding of the fundamental energetics of hydrogen storage processes at the microscopic level. In particular, in-situ soft X-ray spectroscopies can be utilized to probe the formation of intermediate species, byproducts, as well as the changes in morphology and effect of additives, which all can greatly affect the hydrogen storage capacity, kinetics, thermodynamics, and reversibility.A few examples using soft X-ray spectroscopies to study these materials are discussed to demonstrate how these powerful characterization tools could be helpful to further understand the hydrogen storage systems.},
doi = {10.1002/cphc.201801185},
journal = {ChemPhysChem},
number = 10,
volume = 20,
place = {United States},
year = {2019},
month = {2}
}

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