Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

Inna Zvonareva; Xian-Zhu Fu; Dmitry Medvedev; Zongping Shao

doi:10.1039/D1EE03109K

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes†

Inna Zvonareva,

^ab Xian-Zhu Fu,

^c Dmitry Medvedev

*^ab and Zongping Shao

*^de

Author affiliations

* Corresponding authors

^a Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, 620137 Yekaterinburg, Russia
E-mail: dmitrymedv@mail.ru

^b Ural Federal University, 620002 Yekaterinburg, Russia

^c College of Materials Science and Engineering, Shenzhen University, Shenzhen, China

^d State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
E-mail: shaozp@njtech.edu.cn

^e WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, Western Australia 6102, Australia

Abstract

Protonic ceramic electrochemical cells (including fuel cells (PCFCs) and electrolysis cells (PCECs)) are positioned as an eco-friendly means for realizing energy/chemical conversion at low (below 500 °C) and intermediate (500–800 °C) temperatures; as a result, R&D of PCFCs and PCECs are compatible with hydrogen energy and CO₂ utilization programs that play an increasing role in global environmental practice. However, along with ionic transport, the majority of proton-conducting ceramic materials also exhibit electronic transport under oxidizing conditions and elevated temperatures. This feature negatively affects the performance of cells due to the short-circuit effect leading to a reduction in faradaic and energy efficiencies. In response, in order to achieve a compromise between high performance and high efficiency, the present review article aims at revealing the main factors contributing to undesirable electronic transport of materials used in PCFCs and PCECs, as well as possible solutions leading to its suppression for improving their efficiency.

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DOI: https://doi.org/10.1039/D1EE03109K
Article type: Review Article
Submitted: 04 Oct 2021
Accepted: 09 Nov 2021
First published: 10 Nov 2021

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Energy Environ. Sci., 2022,15, 439-465

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Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

I. Zvonareva, X. Fu, D. Medvedev and Z. Shao, Energy Environ. Sci., 2022, 15, 439 DOI: 10.1039/D1EE03109K

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Energy & Environmental Science

Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes†

Abstract

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Electrochemistry and energy conversion features of protonic ceramic cells with mixed ionic-electronic electrolytes

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