Electrochemical oxidation and reduction of La4Ni3O10 in alkaline media

被引：13
作者：
Carvalho, MD
Wattiaux, A
Bassat, JM
Grenier, JC
Pouchard, M
Pereira, MID
Costa, FMA
机构：
[1] FCUL, CCMM, Dept Quim & Bioquim, P-1749016 Lisbon, Portugal
[2] Inst Chim Mat Condensee Bordeaux, CNRS, UPR9048, F-33608 Pessac, France
来源：
JOURNAL OF SOLID STATE ELECTROCHEMISTRY | 2003年 / 7卷 / 10期
关键词：
electrochemical oxidation; electrochemical reduction; oxygen intercalation; Ruddlesden-Popper phases;
D O I：
10.1007/s10008-003-0381-0
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this work we used electrochemical polarization for oxidizing and reducing, in a controlled way, the Ruddlesden-Popper phase La4Ni3O10. With a careful choice of electrochemical parameters, we were able to obtain samples of La4Ni3O10+/-delta never obtained before. The oxygen stoichiometry can range between 9.78 (delta= -0.22) and 10.12 (delta= 0.12). The oxidized phase, La4Ni3O10.12, was obtained using a galvanostatic mode (I= 20 muA) and the reduced phase, La4Ni3O9.78, using potentiostatic conditions (E= 0.46 V). The evolution of the electrical conductivity has been studied as a function of delta.
引用
收藏
页码：700 / 705
页数：6
相关论文
共 38 条
[1]  
Armand M., 1994, ELECTROCHEMISTRY NOV, P65
[2]   ELECTROCHEMICAL INTERCALATION OF OXYGEN IN ND2NIO4+X (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.18) AT 298-K [J].
BHAVARAJU, S ;
DICARLO, JF ;
SCARFE, DP ;
YAZDI, I ;
JACOBSON, AJ .
CHEMISTRY OF MATERIALS, 1994, 6 (11) :2172-2176
[3]   Influence of oxygen stoichiometry on the electronic properties of La4Ni3O10±δ [J].
Carvalho, MD ;
Cruz, MM ;
Wattiaux, A ;
Bassat, JM ;
Costa, FMA ;
Godinho, M .
JOURNAL OF APPLIED PHYSICS, 2000, 88 (01) :544-549
[4]   New preparation method of Lan+1NinO3n+1-delta (n = 2, 3) [J].
Carvalho, MD ;
Costa, FMA ;
Pereira, IDS ;
Wattiaux, A ;
Bassat, JM ;
Grenier, JC ;
Pouchard, M .
JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (10) :2107-2111
[5]   Evidence of oxygen intercalation and mobility at room temperature in oxides:: An electrochemical quartz microbalance study of intercalation in La2CuO4 [J].
Casañ-Pastor, N ;
Zinck, C ;
Michel, CR ;
Tejada-Rosales, EM ;
Torres-Gómez, G .
CHEMISTRY OF MATERIALS, 2001, 13 (06) :2118-2126
[6]   ELECTROCHEMICAL OXIDATION OF LA2CUO4 - INFLUENCE OF THERMAL-TREATMENT ON SUPERCONDUCTIVITY [J].
CASANPASTOR, N ;
GOMEZROMERO, P ;
FUERTES, A ;
NAVARRO, JM .
SOLID STATE IONICS, 1993, 63-5 :938-944
[7]  
DANIELBEK VS, 1946, ZH FIZ KHIM, V20, P567
[8]   ADDITIONAL OXYGEN ORDERING IN LA2NIO4.25 (LA8NI4O17) .1. ELECTRON AND NEUTRON-DIFFRACTION STUDY [J].
DEMOURGUES, A ;
WEILL, F ;
DARRIET, B ;
WATTIAUX, A ;
GRENIER, JC ;
GRAVEREAU, P ;
POUCHARD, M .
JOURNAL OF SOLID STATE CHEMISTRY, 1993, 106 (02) :317-329
[9]   ELECTROCHEMICAL PREPARATION AND STRUCTURAL CHARACTERIZATION OF LA2NIO4+DELTA PHASES (0 LESS-THAN-OR-EQUAL-TO DELTA LESS-THAN-OR-EQUAL-TO 0.25) [J].
DEMOURGUES, A ;
WATTIAUX, A ;
GRENIER, JC ;
POUCHARD, M ;
SOUBEYROUX, JL ;
DANCE, JM ;
HAGENMULLER, P .
JOURNAL OF SOLID STATE CHEMISTRY, 1993, 105 (02) :458-468
[10]  
DEMOURGUES A, 1992, THESIS U BORDEAUX 1
1234