Abstract

FERREIRA, Elivelton Alves; POLACHINI, Ferminio Cesar; FUGIVARA, Cecílio Sadao  and  BENEDETTI, Assis Vicente. Construction of a cell-autoclave for electrochemical measurements at high temperatures. Quím. Nova [online]. 2011, vol.34, n.9, pp. 1647-1650. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422011000900027.

Measurements at high temperature using liquid solutions require special cells and materials which are able to support the temperature and pressure developed inside. The constructed cell was designed to support pressures up to 20 bar, temperatures relatively high up to around 200 ºC, depending on the pressure developed inside the system. It also supports aggressive solutions since its inner wall is made of Teflon. The electrolyte has no contact with the metallic body of the cell. Then, it is supposed that this work represents a great contribution to the electrochemical studies of materials in solutions at high pressure and temperature

Keywords : electrochemical cell-autoclave; electrochemical polarization; high pressure electrochemical cell.