Neutron Spectroscopic and Thermochemical Characterization of Lithium–Aluminum-Layered Double Hydroxide Chloride: Implications for Lithium Recovery
| Autor: | Stephen Harrison, Bruce A. Moyer, M. Parans Paranthaman, Lili Wu, Yongqiang Cheng, Alexandra Navrotsky, Samuel F. Evans |
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| Rok vydání: | 2019 |
| Předmět: |
Sorbent
Materials science Inorganic chemistry chemistry.chemical_element Infrared spectroscopy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Chloride 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound General Energy Brine chemistry Aluminium medicine Hydroxide Neutron Physical and Theoretical Chemistry 0210 nano-technology Gibbsite medicine.drug |
| Zdroj: | The Journal of Physical Chemistry C. 123:20723-20729 |
| ISSN: | 1932-7455 1932-7447 |
| Popis: | Lithium–aluminum-layered double hydroxide chloride (LDH) has been recently demonstrated to be a promising sorbent material for selective lithium extraction and recovery from geothermal brine. In this research, LDH samples synthesized from two different starting materials (alumina and gibbsite) and with two post-drying conditions (ambient-dried and oven-dried) as well as and Fe-doped LDH are studied using neutron vibrational spectroscopy. The results reveal differences in the ordering of interlayer water molecules. Thermochemical measurements of LDHs show that a higher interlayer ordering of water is directly related to the stability of gibbsite- and alumina-derived LDH. This corroborates with the previous work on increasing the stabilization of LDH via partial substitution of aluminum with iron. These findings on the properties of LDH have implications on their lithium extraction abilities and subsequent recovery. |
| Databáze: | OpenAIRE |
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