A cathodic protection anode composed of a flexible, lightweight conductive polymer wire carrying particles activated by a precious metal oxide is described. Oxygen evolution, a typical non-consumable anode reaction, occurs at the catalyst. The catalyst particles provide sites for the reaction and, therefore, protect the substrate. Long life at high current density is observed. Anode lengths of several hundred feet are possible due to uniform current distribution within the anode substrate. Electrical connections in the anode bed environment can then be eliminated.

Results of accelerated lab tests and field tests of the technology are presented. Future field work is also described.

Subject
Materials, Voltage, Cathodic protection, Substrates, Fresh water, Wiring, Installation, Coke, Polymers, Current densities, Deep wells, Catalysts, Anodes
© 1987 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1987
Association for Materials Protection and Performance (AMPP)
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