Air and fuel starvation of phosphoric acid fuel cells: A study using a single cell with multi-reference electrodes

Behaviors of proton exchange membrane fuel cells under oxidant starvation

“…Thus hydrogen is produced to provide the compensatory current [6,7]. The oxidant starvation behavior of fuel cell has been studied by some researchers [7][8][9][10]. Taniguchi et al [10] investigated the changes of cell voltage, electrode potentials against RHE with time during oxidant starvation and found the inhomogeneous degradation of catalyst.…”

Hydrogen pumping effect induced by fuel starvation in a single cell of a PEM fuel cell stack at galvanostatic operation

“…This hydrogen pumping phenomenon has been recognized when the oxygen supply is insufficient in one or several cells inside a galvanostatic discharging PEMFC stack, as discussed in literature [42e44]. Under conditions where the air supply is sufficient, however, to be best of our knowledge, no research has reported this phenomenon except for the experimental work of Mitsuda and Murahashi [45] in a phosphoric acid fuel cell (PAFC). In their work, a single PAFC was tested at a constant current density with insufficient fuel supply, and unexpected hydrogen gas was detected in the cathode exhaust.…”

A distributed dynamic model for chronoamperometry, chronopotentiometry and gas starvation studies in PEM fuel cell cathode

“…Few studies of gas starvation and its influence on the fuel cell performance in the case of phosphoric acid fuel cells (PAFC) have also been reported (Mitsuda andMurahashi, 1990, 1991;Song et al, 2000). Song et al (2000) have shown experimentally that reactant gas starvation leads to performance loss in PAFC in terms of voltage degradation.…”