Effect of the reactive surface area of proton-conducting Ni Ba0.8Sr0.2Ce0.6Zr0.2Y0.2O3-δ anodes on cell performance

Hsu, Kai-Ti; Song, Sang Jun; Tsai, Pei-Hua; Jang, Jae-il; Lin, Jui-Chang; Lee, Sheng‐Wei; Tseng, Chung Jen; Hung, I‐Ming; Hsi, Chi‐Shiung

doi:10.1016/j.ceramint.2019.04.169

Cited by 4 publications

(2 citation statements)

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“…Many recent studies have focused on the effects of the microstructure of the cermet fuel electrode in R‐PCCs. For example, Hsu et al 13 . varied the NiO content in the material powder of an Ni–BSCZY fuel electrode and revealed that the cell containing the fuel‐electrode material (NiO60–BSCZY) with the highest surface area of 6.91 m 2 g −1 and the lowest total resistance of 2.19 Ω cm 2 exhibited the highest power density of 169.2 mW cm −2 at 800°C.…”

Section: Introductionmentioning

confidence: 99%

“…11,12 Many recent studies have focused on the effects of the microstructure of the cermet fuel electrode in R-PCCs. For example, Hsu et al 13 varied the NiO content in the material powder of an Ni-BSCZY fuel electrode and revealed that the cell containing the fuel-electrode material (NiO60-BSCZY) with the highest surface area of 6.91 m 2 g −1 and the lowest total resistance of 2.19 Ω cm 2 exhibited the highest power density of 169.2 mW cm −2 at 800 • C. Pan et al 14 modified an Ni-BZCYYb support to a straight, open, and macro-porous structure. The presence of fingerlike pores was inferred to facilitate mass transport in the substrate, thereby reducing the concentration polarization.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure optimization of fuel electrodes for high‐efficiency reversible proton ceramic cells

Liu

et al. 2023

J Am Ceram Soc.

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Reversible protonic ceramic cells (R‐PCCs) are efficient energy storage and conversion devices that can operate in two modes, namely, in the fuel cell mode for the conversion of fuel to electricity, and in the electrolysis (EC) mode for the EC of water into hydrogen and oxygen. Fuel electrode is a critical component of fuel‐electrode‐supported R‐PCCs, and its pore structure directly affects the electrochemical performance of the R‐PCCs, but it has not been fully studied yet. Herein, the pore structure of Ni–BaZr0.1Ce0.7Y0.1Yb0.1O3−δ (Ni–BZCYYb) fuel electrodes was systematically modulated by varying the weight ratio (0, 5, 10, and 15 wt.%) of the pore‐former added to Ni–BZCYYb, and the electrochemical performance characteristics in the fuel cell and EC modes were investigated. The cell with 10 wt.% pore‐former in the Ni–BZCYYb electrode achieved a remarkable peak power density of 540.7 mW cm−2 and a high current density of –2.28 A cm−2 at 1.3 V at 700°C in the fuel cell and EC modes, respectively, and showing excellent durability for over 100 h. These results further highlight the critical role of the microstructure of fuel electrodes, which can be modified to achieve exceptional performance, particularly in EC operations.

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Section: Introductionmentioning

confidence: 99%