Synthesis and Characterization of Ce1‐xGdxO2‐δ Nanorods - Progress in Nanotechnology - Wiley Online Library

Single crystalline Ce_{1_x}Gd_x0_2-#948 nanorods with x = 0.05 and 0.1 as well as x = 0 were synthesized by a sol-gel process without using any template and/or applying high pressure. The length of the nanorods decreases with increasing dopant concentration. The role of the surfactant as a structure-directing agent is critical to the growth of Cei-ˆGdˆOi-a nanorods. CERIUM dioxide is a fluorite-structured nonstoichio-meric oxide with a greater structural tolerance to reduction. Its electrical property as well as oxygen storage capacity have been the center of attention for decades because of the potential for various applications such as exhaust catalysts, oxygen sensors, and a solid electrolyte (SE) for solid oxide fuel cells (SOFCs). This chapter synthesizes single crystalline 5 and 10 mol% Gd doped as well as nominally pure Ce0₂ nanorods using a simple sol-gel method. The growth of the nanorods is preferentially along the direction regardless of the dopant concentration.

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