Cathodic reactivity of alkaline metal iodides toward platinum bulk. The formation of new reducing phases

被引:13
作者
Cougnon, C [1 ]
Simonet, J [1 ]
机构
[1] Univ Rennes 1, Lab Electrochim, UMR 6510, F-35042 Rennes, France
关键词
platinum cathodes; chemically modified electrodes; alkaline electrolytes; iodides;
D O I
10.1016/S1388-2481(02)00272-2
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Cathodic polarization of platinum electrodes in aprotic dipolar solvents such as carefully dried dimethylformamide containing a large palette of electrolytes affords a reduced phase whose thickness can reach several microns. The nature and the conditions for the cathodic reactivity of alkaline iodides are described as well as the information on the stability of these reduced phases, especially in the presence of acceptors. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:266 / 271
页数:6
相关论文
共 13 条
[1]   Surface alloying of lead as a step in the cathodic generation of the Pb94- in KI and RbBr liquid ammonia solutions [J].
Chlistunoff, JB ;
Lagowski, JJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (30) :5800-5809
[2]   Cathodic generation and oxidation of lead zintl ion Pb-9(4-) in potassium iodide solutions in liquid ammonia [J].
Chlistunoff, JB ;
Lagowski, JJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (15) :2867-2873
[3]   Are tetraalkylammonium cations inserted into palladium cathodes? Formation of new palladium phases involving tetraalkylammonium halides [J].
Cougnon, C ;
Simonet, J .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2001, 507 (1-2) :226-233
[4]   The cathodic insertion of tetraalkylammonium iodides into palladium [J].
Cougnon, C ;
Simonet, J .
ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (05) :209-214
[5]   Formation of isolated nickel-centered gallium clusters in Na10Ga10Ni and a 2-D network of gallium octahedra in K2Ga3 [J].
Henning, RW ;
Corbett, JD .
INORGANIC CHEMISTRY, 1999, 38 (17) :3883-3888
[6]   ZINTL PHASES - TRANSITIONS BETWEEN METALLIC AND IONIC BONDING [J].
SCHAFER, H ;
EISENMAN.B ;
MULLER, W .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1973, 12 (09) :694-712
[7]   K10IN10Z (Z = NI, PD, OR PT) - ZINTL PHASES CONTAINING ISOLATED DECAINDIUM CLUSTERS CENTERED BY TRANSITION-ELEMENTS [J].
SEVOV, SC ;
CORBETT, JD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (20) :9089-9094
[8]   On the cathodic behaviour of tetraalkylammonium cations at a platinum electrode [J].
Simonet, J ;
Astier, Y ;
Dano, C .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 451 (1-2) :5-9
[9]   On the cathodic corrosion of platinum in the presence of iodides in dry aprotic solvents [J].
Simonet, J ;
Labaume, E ;
Rault-Berthelot, J .
ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (06) :252-256
[10]  
TANGUY J, UNPUB IMPEDANCE SPEC