Characterisation of direct ammonia proton conducting tubular ceramic fuel cells for maritime applications

Kamil M. Nowicki; George Carins; John Bayne; Chayopas Tupberg; Gavin J. Irvine; John T. S. Irvine

doi:10.1039/d2ta07310b

Characterisation of direct ammonia proton conducting tubular ceramic fuel cells for maritime applications

Kamil M. Nowicki, George Carins, John Bayne, Chayopas Tupberg, Gavin J. Irvine, John T. S. Irvine^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

Ammonia is now being widely considered as a carrier for low carbon hydrogen due to its favourable physical properties and the existing infrastructure for its transport, storage and distribution. The direct utilisation of ammonia in Protonic Ceramic Fuel Cells (PCFCs) has the advantages of ammonia cracking activity and avoiding mixing of ammonia with generated steam. Here we seek to demonstrate a low-carbon electrical power generation system based on a PCFC fueled by ammonia for port and maritime applications. The performance of a 36 cm² tubular cell with a proton conductive BaCe_0.7Zr_0.1Y_0.16Zn_0.04O_3−δ (BCZYZ) electrolyte, composite Ni/BaCe_0.7Zr_0.1Y_0.16Zn_0.04O_3−δ (Ni/BCZYZ) fuel electrode and La_0.8Sr_0.2Co_0.5Fe_0.5O_3−δ/BaCe_0.7Zr_0.1Y_0.16Zn_0.04O_3−δ LSCF/BCZYZ air electrode has been investigated using pure ammonia fuel. The tested cell generated up to 8.5 W with a maximum power density of 0.236 W cm⁻² at 750 °C. The cell was operated in pure NH₃, repeatedly characterised using I–V and EIS techniques, and tested under load to generate current for more than 140 h, with a fairly stable performance at a current above 8 A.

Original language	English
Pages (from-to)	352-363
Number of pages	12
Journal	Journal of Materials Chemistry A
Volume	11
Issue number	1
Early online date	28 Nov 2022
DOIs	https://doi.org/10.1039/d2ta07310b
Publication status	Published - 7 Jan 2023

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Nowicki_2022_JoMCA_Characterisation-direct-ammonia_CC
Copyright The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Final published version, 1.16 MBLicence: CC BY

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title = "Characterisation of direct ammonia proton conducting tubular ceramic fuel cells for maritime applications",

abstract = "Ammonia is now being widely considered as a carrier for low carbon hydrogen due to its favourable physical properties and the existing infrastructure for its transport, storage and distribution. The direct utilisation of ammonia in Protonic Ceramic Fuel Cells (PCFCs) has the advantages of ammonia cracking activity and avoiding mixing of ammonia with generated steam. Here we seek to demonstrate a low-carbon electrical power generation system based on a PCFC fueled by ammonia for port and maritime applications. The performance of a 36 cm2 tubular cell with a proton conductive BaCe0.7Zr0.1Y0.16Zn0.04O3−δ (BCZYZ) electrolyte, composite Ni/BaCe0.7Zr0.1Y0.16Zn0.04O3−δ (Ni/BCZYZ) fuel electrode and La0.8Sr0.2Co0.5Fe0.5O3−δ/BaCe0.7Zr0.1Y0.16Zn0.04O3−δ LSCF/BCZYZ air electrode has been investigated using pure ammonia fuel. The tested cell generated up to 8.5 W with a maximum power density of 0.236 W cm−2 at 750 °C. The cell was operated in pure NH3, repeatedly characterised using I–V and EIS techniques, and tested under load to generate current for more than 140 h, with a fairly stable performance at a current above 8 A.",

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AU - Carins, George

AU - Bayne, John

AU - Tupberg, Chayopas

AU - Irvine, Gavin J.

AU - Irvine, John T. S.

PY - 2023/1/7

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AB - Ammonia is now being widely considered as a carrier for low carbon hydrogen due to its favourable physical properties and the existing infrastructure for its transport, storage and distribution. The direct utilisation of ammonia in Protonic Ceramic Fuel Cells (PCFCs) has the advantages of ammonia cracking activity and avoiding mixing of ammonia with generated steam. Here we seek to demonstrate a low-carbon electrical power generation system based on a PCFC fueled by ammonia for port and maritime applications. The performance of a 36 cm2 tubular cell with a proton conductive BaCe0.7Zr0.1Y0.16Zn0.04O3−δ (BCZYZ) electrolyte, composite Ni/BaCe0.7Zr0.1Y0.16Zn0.04O3−δ (Ni/BCZYZ) fuel electrode and La0.8Sr0.2Co0.5Fe0.5O3−δ/BaCe0.7Zr0.1Y0.16Zn0.04O3−δ LSCF/BCZYZ air electrode has been investigated using pure ammonia fuel. The tested cell generated up to 8.5 W with a maximum power density of 0.236 W cm−2 at 750 °C. The cell was operated in pure NH3, repeatedly characterised using I–V and EIS techniques, and tested under load to generate current for more than 140 h, with a fairly stable performance at a current above 8 A.

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Characterisation of direct ammonia proton conducting tubular ceramic fuel cells for maritime applications

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