来源：ACS PublicationsIn recent years, coal fly ash (CFA) has emerged as a sustainable alternative resource for rare-earth elements (REEs). Acid leaching enables efficient REE recovery, yet large-scale processing is hindered by the formation of silica gels that immobilize REE-bearing leachates. This work investigates the depolymerization of the amorphous aluminosilicate glass phase in CFA and its role in the generation of colloidal silica during acid leaching. Structural and chemical analyses reveal that under highly acidic conditions (pH 1), proton-mediated rupture of metal–oxygen bonds release...
Release time:
2026
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来源：ACS PublicationsThe sustainable separation of rare earth elements (REEs) from complex mixtures remains a critical technological challenge. Biomaterials offer a promising route, but their deployment has been hindered by their limited stability and efficiency. Here, we report a robust elastin-based hydrogel incorporating the lanthanide-binding protein, lanmodulin, for efficient and selective REE separation. A fusion protein of elastin-like polypeptide and lanmodulin was synthesized and cross-linked with four-arm polyethylene glycol to form a porous network that enhances REE binding and releas...
Release time:
2026
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来源：ACS PublicationsThe advancement of polymer electrolyte fuel cells (PEFCs) relies on materials capable of enhancing electrochemical performance while maintaining long-term operational stability. Rare earth elements (REEs), characterized by partially filled 4f orbitals, tunable redox chemistry, and oxygen vacancy formation, have emerged as effective modifiers for both polymer electrolyte membranes and electrode catalysts. Their incorporation enables improved proton transport, optimized water management, and modulation of fuel oxidation and oxygen reduction reactions through electronic structu...
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2026
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来源：ACS PublicationsThe first ab initio simulation of Magneto-Chiral Dichroism (MChD) for a lanthanide-based complex is reported. The previously experimentally studied [Yb(hfac)3(P–H6bpy)] complex is investigated with multireference wavefunction-based methods using complete active space self-consistent field (CASSCF) calculations, further refined by second-order perturbation theory (CASPT2) and state-interaction spin–orbit approach (RASSI-SO), in combination with the microscopic MChD theory developed by Barron and Vrbancich (BV). The simulations enable a detailed analysis of the 2F5/2 ← 2F7/2 e...
Release time:
2026
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