Fig. 4: Energy harvesting application of CNT-bots in PEM fuel cell.
From: Multimodal chemo-/magneto-/phototaxis of 3G CNT-bots to power fuel cells
Image a shows the PEM fuel cell setup for electricity generation using the CNT-bots. Containers 1 (filled with CNT-bots and peroxide) and 2 (filled with acidic water and CNT-bots) generated pure O2 and H2 gases in real time, which were supplied to the fuel cell (3) through gas tubing (4), as shown. The generated current was measured by a digital multimeter (5). Images a and b show a progressive increase in the potential with time. Image c shows the potential developed against the amount of CNT-bots fed in the fuels, and image d shows the transient potential output across the PEM fuel cell.
