Thermodynamic Analysis of Li Extraction from Brine Using CoPO_4 Ion Sieve AITranslate
Abstract AITranslate
The Δ_fGθ of CoPO_4,Co_3（PO_4）_2 and MeCoPO_4（Me=Li,Na,K,Mg_（0.5））was estimated by congeneric linearity rule.Theφ-pH diagram of the Me-Co-P-H_2O system at 298.15 K was drawn according to the thermodynamic calculation.Thermodynamic analysis was made of lithium extraction using lithium ion battery electrode material LiCoPO_4,and the differences were discussed of adsorption behaviors between Na＋,K＋ or Mg2＋ and Li＋ in salt lake by CoPO_4.The results show that CoPO_4/LiCoPO_4 electrode is stable in aqueous solution（pH=4~11）.Controlling the redox potential of the system at 0.066~0.201V（vs SHE）,CoPO_4 material can absorb Li＋ selectively from the natural brine containing a large number of Na＋,K＋ and Mg2＋,and then Li＋can be desorbed reversibly from lithium-inserted CoPO_4 ion sieve material by controlling the redox potential over 0.201V（vs SHE）.
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DOI：
Chinese Library Classification Number:TQ021.2[化学工程]
Citation Information:
The Δ_fGθ of CoPO_4,Co_3（PO_4）_2 and MeCoPO_4（Me=Li,Na,K,Mg_（0.5））was estimated by congeneric linearity rule.Theφ-pH diagram of the Me-Co-P-H_2O system at 298.15 K was drawn according to the thermodynamic calculation.Thermodynamic analysis was made of lithium extraction using lithium ion battery electrode material LiCoPO_4,and the differences were discussed of adsorption behaviors between Na＋,K＋ or Mg2＋ and Li＋ in salt lake by CoPO_4.The results show that CoPO_4/LiCoPO_4 electrode is stable in aqueous solution（pH=4~11）.Controlling the redox potential of the system at 0.066~0.201V（vs SHE）,CoPO_4 material can absorb Li＋ selectively from the natural brine containing a large number of Na＋,K＋ and Mg2＋,and then Li＋can be desorbed reversibly from lithium-inserted CoPO_4 ion sieve material by controlling the redox potential over 0.201V（vs SHE）.
quote
| GB/T 7714-2015 | [1] WEN Yan-ru, HE Li-hua, LIU Xu-heng. Thermodynamic Analysis of Li Extraction from Brine Using CoPO_4 Ion Sieve[J]. Rare Metals and Cemented Carbides, 2016(2): 6-12. |
| MLA | [1] WEN Yan-ru, et al., "Thermodynamic Analysis of Li Extraction from Brine Using CoPO_4 Ion Sieve." Rare Metals and Cemented Carbides, no. 2, 2016, pp. 6-12. |
| APA | [1] WEN Yan-ru, HE Li-hua, & LIU Xu-heng. (2016). Thermodynamic Analysis of Li Extraction from Brine Using CoPO_4 Ion Sieve. Rare Metals and Cemented Carbides(2), 6-12. |
| IEEE | [1] WEN Yan-ru, HE Li-hua, and LIU Xu-heng, "Thermodynamic Analysis of Li Extraction from Brine Using CoPO_4 Ion Sieve," Rare Metals and Cemented Carbides, no. 2, pp. 6-12, 2016. keywords: {CoPO4ion sieve;LiCoPO4;Li extraction;congeneric linearity rule;thermodynamics;adsorption;brine} |