Effect of non-uniform parallel channel on performance of passive direct methanol fuel cell

Effect of electrode variable contact angle on the performance and transport characteristics of passive direct methanol fuel cells

“…Yang et al [11] conducted surface treatment on SS316L metal bipolar plates, and showed that these bipolar plates are suitable in both anode and cathode environments of passive DMFCs. Gholami et al [12] found that using nonuniform parallel channels is better than uniform, and one of the reasons is the improvement of CO 2 removal. Chen et al [13] investigated the effects of cell orientation on the fuel utilization efficiency and performance, the different membranes were tested [14,15]; and researchers also experimentally studied the effects of mass transport resistances in anode and cathode [16e18], as well as the design parameters of catalyst layer [19e21].…”

Effect of anode and cathode flow field geometry on passive direct methanol fuel cell performance

“…In this section, according to the results of the previous work [11], the current collector with the trapezoidal channels with opening to upward was used on the anode side. On the cathode side, three types of current collector were used as shown in Figs.…”

“…Extensive researches have been done on the operational parameters of passive methanol fuel cells such as the concentration of methanol [4][5][6][7][8], type and thickness of membrane [4,6,9,10], catalyst loading on membrane [3,8], different flow field configuration with various open ratio [2,[11][12][13].…”

“…Also trapezoidal channels with opening to upward at the anode side [11] and hexagonal holes [18] were used at this kind of fuel cell.…”

“…a) Trapezoidal parallel channel current collector, b) Parallel channel current collector, c) Perforated current collector (Dimensions in mm)[11].…”