Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Yves Piffard"'
Publikováno v:
Solid State Ionics
Solid State Ionics, Elsevier, 2009, 180 (20-22), pp.1157. ⟨10.1016/j.ssi.2009.06.010⟩
Solid State Ionics, Elsevier, 2009, 180 (20-22), pp.1157. ⟨10.1016/j.ssi.2009.06.010⟩
International audience; Ba-2(In1 - xMx)(2)O5-y/2(OH)(y)square(1) (-) (y/2) (y
Publikováno v:
Journal of Power Sources
Journal of Power Sources, Elsevier, 2007, 167 (1), pp.111. ⟨10.1016/j.jpowsour.2007.02.014⟩
Journal of Power Sources, Elsevier, 2007, 167 (1), pp.111. ⟨10.1016/j.jpowsour.2007.02.014⟩
Electrolyte supported as well as anode supported single-cells based on BaIn0.3Ti0.7O2.85 (BIT) electrolyte were developed. In these cells, Ni-BIT cermet was used as anode and La0.8Sr0.2MnO3 as cathode. Electrolyte supported cells were fabricated by c
Autor:
Maria Teresa Caldes, Yves Piffard, Anthony Chesnaud, Samrat Ghosh, Olivier Joubert, Luc Brohan
Publikováno v:
Chemistry of Materials. 16:5372-5379
The Ln4[Ga 2(1-x) Ge 2x O 7+x □ 1-x ]O 2 (Ln = La, Nd, Gd; x ≤ 0.4) compounds have been prepared first by solid-state reaction and then by a new regenerative sol-gel method which allows their sintering. They exhibit a Cuspidine-like structure. Up
Autor:
M.T. Caldes, Arnaud Magrez, Luc Brohan, Olivier Joubert, J Rodriguezcarvajal, F Taulelle, V Jayaraman, Yves Piffard
Publikováno v:
Solid State Ionics. 170:25-32
The proton compounds Ba 2 In 2(1− x ) Ti 2 x O 4+2 x (OH) y [0≤ x ≤1; y ≤2(1− x )] were prepared by reacting Ba 2 In 2(1− x ) Ti 2 x O 5+ x □ 1− x (0≤ x ≤1) phases with water vapor at ∼200 °C. For 0≤ x ≤0.20, the filling of
Publikováno v:
Solid State Ionics. 170:17-24
Ba2In2(1−x)Ti2xO5+x□1−x (0≤x≤1) compounds have been prepared by solid state reaction. At room temperature (RT), when x increases, the progressive filling of oxygen vacancies, concomitant with the substitution of Ti for In, first induces (fo
Autor:
Ming-Wen Chu, and Olivier Joubert, Yves Piffard, M. Ganne, Anne-Marie Marie, Luc Brohan, Maria-Teresa Caldes
Publikováno v:
Chemistry of Materials. 16:31-42
A convergent beam electron diffraction (CBED) study of Bi 2 La 2 Ti 3 O 12 was performed. As in the case of Bi 3 LaTi 3 O 12 , it reveals a lowering of symmetry with respect to the idealized structure (space group I4/mmm) of Aurivillius phases. The s
Autor:
M. Ganne, Ming-Wen Chu, Olivier Joubert, E. Gautier, Yves Piffard, Anne-Marie Marie, Luc Brohan, M.T. Caldes
Publikováno v:
Journal of Solid State Chemistry. 172:389-395
An alternative chemical approach was used to prepare the ferroelectric Aurivillius phase Bi 3 LaTi 3 O 12 (BLT1.00) at low temperature (450°C) leading to well-crystallized compounds at 750°C. The existence of 90°-oriented twin domains, characteris
Synthesis, structure and lithium-ion conductivity of Li2−2xMg2+x(MoO4)3and Li3M(MoO4)3(MIII= Cr, Fe)
Publikováno v:
J. Mater. Chem.. 13:1797-1802
Lithium magnesium molybdates of the general formula Li2−2xMg2+x(MoO4)3, for 0 ≤ x ≤ 0.3, have been synthesized and their structure and lithium ion conductivity investigated. Determination of crystal structure of one of the members, Li2Mg2(MoO4)
Autor:
Venkataraman Jayaraman, Maria Teresa Caldes, Yves Piffard, Luc Brohan, Olivier Joubert, Arnaud Magrez, Anthony Chesnaud
Publikováno v:
Solid State Sciences. 4:1413-1418
The Nd4[Ga2(1−x)M2xO7+x□1−x]O2 (M=Ti, Ge) compounds have been prepared by solid state reaction. Nd4(Ga2O7□)O2 and Nd4(Ti2O8)O2 both exhibit a cuspidine-like structure and they form a complete solid solution. Upon substituting Ge for Ga, the c
Publikováno v:
Journal of Materials Chemistry. 12:374-377
Lithium magnesium fluoride sulfate, LiMgFSO4, has been prepared by reaction of MgSO4·H2O, Li2CO3 and NH4F at 450–500 °C. It crystallizes in space group P of the triclinic system, with Z = 2 and a = 5.1623(7), b = 5.388(1), c = 7.073(1) A, α = 10