Electrochimica Acta, Vol.48, No.1, 85-89, 2002
Electrochemical mass-flow control of hydrogen using a fullerene-based proton conductor
A membrane electrode assembly (MEA) was fabricated using proton conductive hydrogensulfated fullerenol (C-60(OSO3H)(n)(OH)(n)). Rate-controlled mass flow of hydrogen was performed by applying voltage to both electrodes of the MEA without humidification. The amount of the electrochemically transported hydrogen through the MEA increased as the applied current increased, obeying Faraday's law. Residual gas analysis of the transported hydrogen showed that the transported hydrogen contains trace amounts of water less than 1%.
Keywords:electrochemical mass-flow;hydrogen mass-flow;hydrogensulfated fullerenol;membrane electrode assembly (MEA);residual gas analysis (RGA)