| Protonic ceramic electrolysis cells for fuel production: a brief review |
Ho‑Il Ji1,2
, Jong‑Ho Lee1,2, Ji‑Won Son1,3, Kyung Joong Yoon1,4, Sungeun Yang1, Byung‑Kook Kim1 |
1Center for Energy Materials Research, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
2Nanomaterials Science and Engineering, Korea University of Science and Technology (UST), KIST Campus, Seoul 02792, Republic of Korea
3KU‑KIST Graduate School of Energy and Environment (Green School), Korea University, Seoul 02841, Republic of Korea
4Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul 03722, Republic of Korea |
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Received: April 2, 2020; Revised: May 6, 2020 Accepted: May 12, 2020. Published online: September 30, 2020. |
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| ABSTRACT |
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Proton-conducting oxides exhibit significant hydrogen ion (proton) conductivity at intermediate temperatures around 300–600 °C. Owing to their distinguished features compared to high-temperature oxygen ion-conducting oxide electrolytes and low-temperature proton-conducting polymer electrolytes, diverse electrochemical applications based on the proton-conducting oxides have attracted great attention for efficient energy conversions. This review particularly aims to introduce protonic ceramic electrolysis cells (PCECs) and their extended applications. The constituent materials, recent developments, remaining issues in PCECs as well as the application integrated with PCEC for electrochemical ammonia synthesis will be presented. In addition, for each section, the relevant prospects and recommendations for future research directions will be discussed. |
| Key words:
Proton-conducting oxide · PCEC · Electrochemical device · Hydrogen · Ammonia |
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