Crystal growth of a series of lithium garnets Ln3Li5Ta2O12 (Ln=La, Pr, Nd): Structural properties, Alexandrite effect and unusual ionic conductivity

Evaluation of Ga0.2Li6.4Nd3Zr2O12 garnets: exploiting dopant instability to create a mixed conductive interface to reduce interfacial resistance for all solid state batteries

“…All patterns correspond to the expected garnet symmetry and could be indexed on a cubic Ia-3d (Li 5+x Nd 3 Nb 2-x Zr x O 12 /Al-NLZO) or I-43d (Ga-NLZO) cell 39,44,48 . All Nd garnets were blue under artificial lighting but instantly turned neodymium glass purple when placed in sunlight, corresponding to the Alexandrite effect as noted previously 80 .…”

Garnet-type solid-state fast Li ion conductors for Li batteries: critical review

“…23 Both of these sites are partially filled in Li 5 La 3 M 2 O 12 . 23 Nb/Ta in Li 5 La 3 M 2 O 12 has been fully replaced or partially doped, including Bi, 24,25 Sb 26,27 and In 28 and La with Pr, Nd, 29 Ba 30 and K. 28 It has been shown that the presence of d 10 (for e.g., Te 6+ , Sb 5+ ) cations, rather than d 0 (for e.g., W 6+ , Ta 5+ , Nb 5+ ) cations in the M site, results in an increase in the lattice parameter (Table 1). 20,27 2.3 Li 6 ALa 2 M 2 O 12 (A = Mg, Ca, Sr, Ba; M = Nb, Ta) (Li 6 -phases) Further garnet-like structures have been obtained by partially substituting the trivalent La 3+ with divalent ions, which resulted in an increased Li ion concentration, producing a new class of garnet-type metal oxides with chemical formula of Li 6 ALa 2 M 2 O 12 (A = Mg, Ca, Sr, Ba, Sr 0.5 Ba 0.5 and M = Nb, Ta) (Table 1).…”

Crystal growth of K2UO4 and Na4UO5 using hydroxide fluxes

“…Our group has focused on employing hightemperature solutions of alkali metal hydroxides and has been successful in synthesizing new oxides as well high-quality single crystals of known compositions and structures [13][14][15][16][17]. The acidbase chemistry of hydroxide melts is best described by the LuxFlood concept of oxoacidity [18,19], where the autodissociation of the hydroxide yields the H 2 O as an acidic species and O 2 À as a basic species (Eq.…”