Synthesis and characterization of new pyrochlore solid solution Bi1.5Sb1.5Cu1−xMnxO7

Investigation of structural and dielectric behavior of Eu2(B′0.5 B″0.5)2O7 (B′=Ba; B″=W, Mo) ceramics

“…Sellami et al [21] synthesized the pyrochlore solid solution Bi 1.5 Sb 1.5 Cu 1−x Mn x O 7 by using ceramic method at 1000 • C. In this paper they reported 0925-8388/$ -see front matter © 2010 Elsevier B.V. All rights reserved. doi:10.1016/j.jallcom.2010.08.015 that the cell parameter decreases linearly with increasing manganese concentration.…”

Synthesis and characterization of new pyrochlore solid solution Bi1.5Sb1.5–xNbxCuO7

“…Electrical conductivity measurements were carried out using an impedance lock-in EG&G 7220-type with a 10-mV AC signal amplitude at frequencies between 30 Hz and 120 kHz. Previous studies [17] showed that the substitution of copper by manganese in compound Bi 1.5 Sb 1.5 CuO 7 [18] forms a continuous solid solution with a pyrochlore structure. Here, we substitute antimony by niobium according to this system: Bi 1.5 Sb 1.5-x Nb x CuO 7 .…”

A novel photocatalyst and improvement of photocatalytic properties by Cu doping

“…Recently, pyrochlore compounds that belong to ternary system Bi 2 O 3 -ZnO-Me 2 O 5 (Me = Nb and Ta) [14][15][16], which contain octahedral units, have been recognized as potential candidates for capacitor and high-frequency filter applications [17][18][19][20]. But the photocatalytic activity of this system has not been reported.…”