DataVXACS Energy LettersPaper
journal article·2025-10-10

Promotion of Reversible Fuel-Power Generation in Protonic Ceramic Electrochemical Cell via Water-Mediated Ex-Solution

Sejong Ahn, Dongyeon Kim, Incheol Jeong, HeeChan Kang, InSik Lim, Gaon Heo, Dae-Kwang Lim, Jun Kyu Kim, Ki-Min Roh, Bonjae Koo, Jun Hyuk Kim, Kang Taek Lee, WooChul Jung

ACS Energy Letters· Volume 10· Issue 10
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Source abstract

Abstract

It is indicated that water can be an active motif for nanoparticle ex-solution. Yet, only a handful of studies are available, if possible, limited to the elemental composition of Ba(Co,Fe,Zr,Y)O 3−δ as a mother oxide. Here we prove the versatility of water-mediated ex-solution by expanding the perovskite palettes. Among these, our selected composition (i.e., Ag ex-solved Ba 0.95 Ag 0.05 Co 0.8 Nb 0.1 Ta 0.1 O 3-δ, e-BACNT) is demonstrated as an oxygen electrode material for protonic ceramic electrochemical cells, promoting efficient reversible fuel-power generation. Thereby, a peak power density of ∼1.81 W cm –2 and water-splitting current density of ∼2.93 A cm –2 at 1.3 V and 650 °C are achieved within a single cell. Apart from its notable cell performances, this work unveils new opportunities for creating functional metal-oxide heterointerfaces.
Source: openalex_inverted_index · Quality: baseline

Research context

Ceramics & glassesNanomaterialsElectronic materials

OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advancements in Solid Oxide Fuel Cells

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Institute of Advanced Materials

Seoul National University

Department of Mechanical Engineering

KAIST

Resources Utilization Research Center

KIGAM

Department of Future Energy Engineering, Sungkyunkwan University

Korea Electric Power Corp. Research Institute

Samsung Air Science Research Center, Samsung Advanced Institute of Technology (SAIT)

Samsung Electronics Co., Ltd.

School of Chemistry and Energy

Sungshin Women’s University

SKKU Institute of Energy Science and Technology (SIEST), Sungkyunkwan University

KAIST Graduate School of Green Growth and Sustainability

Department of Materials Science and Engineering

Funding

Korea Electric Power Corporation · National Research Foundation of Korea

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