Compositional control of tunnel features in hollandite-based ceramics: structure and stability of (Ba,Cs)(1.33)(Zn,Ti)(8)O-16

Grote R; Zhao M; Shuller-Nickles L; Amoroso J; Gong W; Lilova K; Navrotsky A; Tang M; Brinkman KS

Journal of Materials Science, Vol.54, No.2, 1112-1125, 2019

DOI10.1007/s10853-018-2904-1 Export Citation

Compositional control of tunnel features in hollandite-based ceramics: structure and stability of (Ba,Cs)(1.33)(Zn,Ti)(8)O-16

Grote R, Zhao M, Shuller-Nickles L, Amoroso J, Gong W, Lilova K, Navrotsky A, Tang M, Brinkman KS

The impact of composition on the tunnel features of hollandite materials for the purpose of radioactive cesium (Cs) immobilization was evaluated. The barium (Ba) to cesium (Cs) ratio was varied in the tunnel sites referred to as the A-site of the hollandite structure. Zinc (Zn) was substituted for titanium (Ti) on the B-site to achieve the targeted stoichiometry with a general formula of BaxCsyZnx+y/2Ti8-x-y/2O16 (0