Characterization of core-shell structured Ni@GDC anode materials synthesized by ultrasonic spray pyrolysis for solid oxide fuel cells

Nanocomposite electrodes as a new opportunity to transform the performance of solid oxide cells

“…4a–d). 78 The NiO cores were covered by nano-sized crystalline GDC with a spherical shape. Fuel cells fabricated using the NiO@GDC substrate exhibited significantly improved electrochemical performance compared to conventionally mixed Ni–GDC fuel electrodes.…”

“…This approach provides enhanced stability by preventing the agglomeration and sintering of nanoparticles during operation. 78 Additionally, the shell material can be chosen to promote specific catalytic reactions or provide better electronic or ionic conduction properties. A Ni/YSZ fuel electrode for SOFCs was fabricated from a core–shell structured Ni/YSZ powder, which consisted of a Ni core and nano-sized YSZ shell particles.…”

“…In addition, the ultrasonic spray pyrolysis (USP) method is known to be a useful synthesis method based on an aerosol process for easily modification the morphology by controlling several parameters such as the solution preparation method, atomizing frequency, flow rate, and heating temperature. 78 By atomizing and turning the mixed prepared core and shell Ni(CH 3 COO) 2 ·4H 2 O and GDC precursor solutions into mists by an ultrasonic atomizer, Lim et al successfully synthesized the core–shell structured NiO@GDC powders used as fuel electrode materials with a multi-zone furnace without post-heat treatment. 78 They investigated the influence of various parameters ( i.e.…”

“…78 By atomizing and turning the mixed prepared core and shell Ni(CH 3 COO) 2 ·4H 2 O and GDC precursor solutions into mists by an ultrasonic atomizer, Lim et al successfully synthesized the core–shell structured NiO@GDC powders used as fuel electrode materials with a multi-zone furnace without post-heat treatment. 78 They investigated the influence of various parameters ( i.e. the precursor pH, carrier gas flow rate, and zone temperature) on the operation performance of the cell.…”

“…Fig.4 (a-d) HR-TEM images of NiO@GDC particles synthesized by USP with a multi-zone furnace at pH 4 and a carrier gas flow rate of 1 L min −1 78. Copyright 2016, Ceramics International.…”