Research Article

Improving the Stability of Polymer Electrolyte Membrane Fuel Cells via Atomic Layer-Deposited Cerium Oxide

Figure 3

TEM images of PEALD CeOx coated on Pt cathode: (a) Pt-CeOx 10 cycles, (b) Pt-CeOx 20 cycles, and (c) Pt-CeOx 30 cycles. (d) Lattice parameters of CeOx are determined to be 0.31 nm (CeOx(111)) and 0.27 nm (CeOx(200)).
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