Doped ceria anode interlayer for low-temperature solid oxide fuel cells with nanothin electrolyte

作者：Ji Sanghoon; Lee Yoon Ho; Park Taehyun; Cho Gu Young; Noh Seungtak; Lee Yeageun; Kim Minwoo; Ha Seungbum; An Jihwan^*; Cha Suk Won

来源：Thin Solid Films, 2015, 591: 250-254.

DOI：10.1016/j.tsf.2015.05.005

• Gadolinium-doped ceria
• Anode interlayer
• Nanothin electrolyte
• Radio frequency sputtering
• Solid oxide fuel cell

Gadolinium-doped ceria (GDC) deposited by radio frequency magnetron sputtering is utilized as the anode interlayer for low-temperature solid oxide fuel cells (LT-SOFCs) with a nanothin yttria-stabilized zirconia (YSZ) electrolyte and Ni/Pt electrodes. When the thickness ratio of YSZ electrolyte versus 100 nm GDC anode interlayer is at or below 1.5, the electrochemical performance of the LT-SOFC is severely poor due to the microstructural instability of the GDC anode interlayer under high-temperature reducing atmospheric conditions. At 500 degrees C, the peak power density of the LT-SOFC with a Ni anode and a 20 nm GDC anode interlayer is similar to 30% higher than that without the GDC anode interlayer due to faster reaction kinetics on the anode side.

• 出版日期2015-9-30