Selective Separation of Lithium, Magnesium and Calcium using 4‐Phosphoryl Pyrazolones as pH‐Regulated Receptors

Zhang, Jianfeng; Tanjedrew, Narisara; Wenzel, Marco; Royla, Philipp; Du, Hao; Kiatisevi, Supavadee; Lindoy, Leonard F.; Weigand, Jan J.

doi:10.1002/anie.202216011

Cited by 14 publications

(8 citation statements)

References 55 publications

(57 reference statements)

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“…H L 6 was reproduced according to the procedure developed in our group recently, and the characterization data was also reported . H L 8 was recently reported by our group, and its preparation was reproduced in this work .…”

Section: Methodsmentioning

confidence: 91%

Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation

et al. 2023

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Highly selective rare-earth separation has become increasingly important due to the indispensable role of these elements in various cutting-edge technologies including clean energy. However, the similar physicochemical properties of rare-earth elements (REEs) render their separation very challenging, and the development of new selective receptors for these elements is potentially of very considerable economic and environmental importance. Herein, we report the development of a series of 4-phosphoryl pyrazolone receptors for the selective separation of trivalent lanthanum, europium, and ytterbium as the representatives of light, middle, and heavy REEs, respectively. X-ray crystallography studies were employed to obtain solid-state structures across 11 of the resulting complexes, allowing comparative structure–function relationships to be probed, including the effect of lanthanide contraction that occurs along the series from lanthanum to europium to ytterbium and which potentially provides a basis for REE ion separation. In addition, the influence of ligand structure and lipophilicity on lanthanide binding and selectivity was systematically investigated via n-octanol/water distribution and liquid–liquid extraction (LLE) studies. Corresponding stoichiometry relationships between solid and solution states were well established using slope analyses. The results provide new insights into some fundamental lanthanide coordination chemistry from a separation perspective and establish 4-phosphoryl pyrazolone derivatives as potential practical extraction reagents for the selective separation of REEs in the future.

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Section: Methodsmentioning

confidence: 91%

Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation

et al. 2023

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“…Consequently, the Weigand group developed a series of new 4-phosphorylpyrazolone receptors by inserting a more tunable and versatile phosphoryl moiety into the pyrazolone backbone (Figure 7) Zhang et al, 2023). The lipophilicity of ligands depends on the properties of substituents in positions R 1 and R 2 (Figure 7).…”

Section: Pyrazolone-based Receptorsmentioning

confidence: 99%

Receptors for the recognition and extraction of lithium

Zhang,

Wenzel,

Yang

et al. 2023

Front. Chem. Eng.

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We summarize advances in lithium recognition receptors, focusing on their use as active reagents in circular processes such as liquid–liquid extraction, an established industrial process that is advantageous due to its large processing capacity and high selectivity. High-performance systems are required, given the increasing demand for effective separation processes for the recovery of valuable substances from spent lithium-ion batteries or the exploration of brines. Hence, the availability of powerful and highly selective receptors is particularly crucial. This mini-review summarizes the development of active receptors for lithium ion extraction and covers advances in receptors for both lithium ions and lithium salts. It discusses various receptor types, ranging from heteroditopic macrocyclic systems to simple β-diketones. The latter achieve particularly high lithium ion extraction yields in the presence of phosphine oxides such as trioctylphosphine oxide. Structural studies employing 4-phosphorylpyrazolone exhibited diverse coordination modes of lithium and represent clear evidence for the synergistic role of the co-ligand on a molecular level.

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“…As we know, structure and chemical environment alteration are accompanied with morphological changes. [30,31] To visualize anode morphology, a range of observation tools with various scales including optical microscopes (OM), electron microscopes (EM), and probe technologies (PT) are employed. [32][33][34][35] Optical microscopes usually have low resolution ratio but is easy to operate.…”

Section: Introductionmentioning

confidence: 99%

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

Zhu,

Li,

Rao

et al. 2024

Advanced Energy Materials

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The growing environmental pollution issues and continuous energy dilemma call for high‐performance energy storage systems (ESSs). While the inevitable safety concerns appear and restrict the application of lithium‐ion batteries in large‐scale ESSs. Contrastively, zinc ion batteries (ZIBs) attract increasing attention due to the inherent advantages of high safety, low cost, and environmental friendliness. However, the poor stability and reversibility of Zn anodes bring severe difficulty for its practical application. Considerable efforts are devoted in the anode modification, such as electrolyte adjustment, interfacial engineering, and anode structure design, but there is still a fuzzy field concerning the reaction process, regulation mechanism, and modified effect. Reviewing the history, the development of various electrodes greatly depends on the breakthrough in advanced characterization technologies, while the summarizations of technological advances in the Zn anode are still deficient. Hence, this review concentrates on the recent progress in various characterization techniques and related strategies of anode protection. The information is especially highlighted that each technique can offer the crucial or auxiliary role they play in proving specific issues. Furthermore, the opinions on current limitations and future directions of common characterization techniques are also discussed in detail, aiming to give a comprehensive perspective in designing advanced zinc anodes.

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Selective Separation of Lithium, Magnesium and Calcium using 4‐Phosphoryl Pyrazolones as pH‐Regulated Receptors

Cited by 14 publications

References 55 publications

Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation

Highly Tunable 4-Phosphoryl Pyrazolone Receptors for Selective Rare-Earth Separation

Receptors for the recognition and extraction of lithium

Advanced Characterization Techniques on Mechanism Understanding and Effect Evaluation in Zinc Anode Protection

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