The first liquid-phase synthesis of high-quality, small-sized rare-earth metal nanoparticles (1–3 nm)—ranging from lanthanum as one the largest (187 pm) to scandium smallest (161 metal—is shown. Size, oxidation state, and reactivity are examined (e.g., electron microscopy, spectroscopy, X-ray absorption selected reactions). Whereas highly reactive (e.g. in contact air water), they chemically st...

We report on the acid dissociation constants (Ka) of diglycolamic acid-type ligands together with comprehensive data on the extraction performance of N,N-dioctyldiglycolamic acid (DODGAA) for 54 metal ions. The pKa of the diglycolamic acid framework was determined to be 3.54 ± 0.03 in water (0.1 M LiCl, 25°C) by potentiometric titration, indicating that DODGAA is strongly acidic compared with a...

Sm2Fe17 compounds are high-performance permanent magnets. Cobalt substitution allows us to further improve their magnetic properties. Depending on the thermal treatment, cobalt-substituted can be synthesized either in TbCu7 (disordered) or Th2Zn17 (ordered) structure type. Rietveld refinement of number transition metal dumbbells replacing rare-earth atoms from synchrotron powder diffraction dat...

Recycling electronic waste is an important subject not only from the point of view of waste treatment, but also regarding the recovery of valuable metals. This research examined the stepwise recovery of metals in mobile phone waste using chemical treatment via pH swing and the biological method using biomineralization. In chemical treatment, the metal fraction attached to the printed circuit bo...

The Cover Feature demonstrated all rare-earth metal elements in the form of RE (abbreviation rare-earth) letters and a C−H bond was activated via catalysts C−R consequently formed. In their Review, X. Xu co-workers provide brief overview on metal-catalyzed functionalization reactions during last decade. Transition catalyzed has attracted great interest witnessed considerable advances owing to i...