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Title: Calcium chloride substitution in sodium borohydride

Abstract

Sodium borohydride (NaBH4) has been a material of interest for many years in developing metal boride complexes and shows a great deal of potential as a hydrogen storage material. Though many have used various additives as catalysts to weaken the bonds within NaBH4 to create a more energetically favorable material, very little is understood about how the borohydride interacts with and changes the additives being incorporated. This work uses ball milling to incorporate calcium chloride (CaCl2) into NaBH4. Using several x-ray techniques, thermogravimetric analysis, and Raman spectroscopy, this study shows not only that the salt diffuses into NaBH4 but describes how the borohydride changes the additive itself. In gaining a stronger understanding of what happens to the additives needed to weaken the borohydride bonds, future researchers may have an easier time selecting the appropriate additive to create a borohydride complex that will meet their needs.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF)
OSTI Identifier:
1635443
Alternate Identifier(s):
OSTI ID: 1635195
Grant/Contract Number:  
AC02-05CH11231; AC0494AL85000; AC52-07NA27344.
Resource Type:
Published Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Name: Journal of Solid State Chemistry Journal Volume: 290 Journal Issue: C; Journal ID: ISSN 0022-4596
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; borohydride; calcium chloride; ball milling; hydrogen storage

Citation Formats

Mattox, Tracy M., Bolek, Georgia, Pham, Anne L., Kunz, Martin, Liu, Yi-Sheng, Fakra, Sirine C., Gordon, Madeleine P., Doran, Andrew, Guo, Jinghua, and Urban, Jeffrey J.. Calcium chloride substitution in sodium borohydride. United States: N. p., 2020. Web. https://doi.org/10.1016/j.jssc.2020.121499.
Mattox, Tracy M., Bolek, Georgia, Pham, Anne L., Kunz, Martin, Liu, Yi-Sheng, Fakra, Sirine C., Gordon, Madeleine P., Doran, Andrew, Guo, Jinghua, & Urban, Jeffrey J.. Calcium chloride substitution in sodium borohydride. United States. https://doi.org/10.1016/j.jssc.2020.121499
Mattox, Tracy M., Bolek, Georgia, Pham, Anne L., Kunz, Martin, Liu, Yi-Sheng, Fakra, Sirine C., Gordon, Madeleine P., Doran, Andrew, Guo, Jinghua, and Urban, Jeffrey J.. Thu . "Calcium chloride substitution in sodium borohydride". United States. https://doi.org/10.1016/j.jssc.2020.121499.
@article{osti_1635443,
title = {Calcium chloride substitution in sodium borohydride},
author = {Mattox, Tracy M. and Bolek, Georgia and Pham, Anne L. and Kunz, Martin and Liu, Yi-Sheng and Fakra, Sirine C. and Gordon, Madeleine P. and Doran, Andrew and Guo, Jinghua and Urban, Jeffrey J.},
abstractNote = {Sodium borohydride (NaBH4) has been a material of interest for many years in developing metal boride complexes and shows a great deal of potential as a hydrogen storage material. Though many have used various additives as catalysts to weaken the bonds within NaBH4 to create a more energetically favorable material, very little is understood about how the borohydride interacts with and changes the additives being incorporated. This work uses ball milling to incorporate calcium chloride (CaCl2) into NaBH4. Using several x-ray techniques, thermogravimetric analysis, and Raman spectroscopy, this study shows not only that the salt diffuses into NaBH4 but describes how the borohydride changes the additive itself. In gaining a stronger understanding of what happens to the additives needed to weaken the borohydride bonds, future researchers may have an easier time selecting the appropriate additive to create a borohydride complex that will meet their needs.},
doi = {10.1016/j.jssc.2020.121499},
journal = {Journal of Solid State Chemistry},
number = C,
volume = 290,
place = {United States},
year = {2020},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.jssc.2020.121499

Figures / Tables:

Fig. 1 Fig. 1: a) XRD of NaBH4, CaCl2, and mixtures containing 40% CaCl2 for milling times ranging from 10 min to 60 min and normalized peaks at b) ~6.18° (NaBH4 component), and c) ~ 4.25 (CaCl2 component). Markers ** and * highlight the position of the NaBH4 and CaCl2 diffraction peaks,more » respectively, for easier viewing.« less

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    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.