Effect of nickel oxide - Modified BaCe0.54Zr0.36Y0.1O2.95 as composite anode on the performance of proton-conducting solid oxide fuel cell

• Published in: International Journal of Hydrogen Energy
• Main Author: Abdul Malik L.; Mahmud N.A.; Mohd Affandi N.S.; Mazlan N.W.; Zakaria N.H.A.; Abd Malek N.I.; Hassan O.H.; Md Jani A.M.; Osman N.
• Format: Article
• Language: English
• Published: Elsevier Ltd 2021
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85096187203&doi=10.1016%2fj.ijhydene.2020.10.219&partnerID=40&md5=6c1a5ecc0897683ed0b5a33fd5e14ac8

The effect of NiO-m-BCZY64 (BCZY64 = BaCe0.54Zr0.36Y0.1O2.95) as a composite anode with a single anode functional layer (AFL) and gradient AFL on the performance of a button cell was systematically evaluated. The m-BCZY64 is referred to the pristine BCZY64 that was modified by a functionalized activated carbon derived from palm-oil empty fruit bunch (EFB). The electrochemical performance of the cell was investigated by impedance spectroscopy in a controlled atmosphere. The NiO-m-BCZY64 exhibited smaller grain size and homogenous elemental distribution compared to pristine NiO-BCZY64 as observed by SEM/EDX. At T = 800 °C, a button cell consists of NiO:m-BCZY64 with gradient AFL showed the best performance with total resistance (RT) of 21.12 Ωcm2 compared to the cell with single AFL (RT = 86.04 Ωcm2) and pristine NiO-BCZY64 (RT = 145.64 Ωcm2). The significant reduction of RT indicates that the NiO:m-BCZY64 with gradient AFL showed high potential to be used as a composite anode for proton-conducting solid oxide fuel cells. © 2020 Hydrogen Energy Publications LLC