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Achieving global carbon neutrality requires transformative technologies capable of converting, storing, and utilizing renewable energy efficiently. Among the most promising solutions are reversible proton ceramic electrochemical cells (RPCECs), which can operate in two modes: producing clean hydrogen from electricity and generating electricity from hydrogen. This unique flexibility positions RPCECs as a key technology for integrating renewable energy into future energy systems.

My research focuses on developing advanced ceramic electrode materials that improve the efficiency, durability, and commercial viability of RPCECs. Although these devices have demonstrated significant potential, their large-scale deployment remains limited by the performance and long-term stability of electrode materials under demanding operating conditions.

To address these challenges, our group explores innovative material design strategies, including high-entropy engineering, defect regulation, and multifunctional ceramic architectures. By tailoring the atomic-scale structure and chemical composition of electrode materials, we seek to accelerate electrochemical reactions while enhancing resistance to degradation. We also investigate triple-conducting ceramics capable of simultaneously transporting electrons, oxygen ions, and protons, thereby significantly improving device performance at intermediate temperatures.

Beyond material discovery, our work aims to establish a fundamental understanding of how electrochemical reactions occur within complex ceramic interfaces. Through advanced characterization techniques and theoretical analysis, we reveal the mechanisms governing energy conversion processes and use this knowledge to guide the design of next-generation materials.

The broader goal of this research extends far beyond laboratory-scale performance records. Efficient hydrogen production and energy storage are essential components of future carbon-neutral societies. By improving the materials that underpin these technologies, we hope to contribute to cleaner industrial processes, renewable energy integration, and sustainable energy infrastructures worldwide.

As nations accelerate efforts toward net-zero emissions, advanced ceramic energy materials will play an increasingly important role. Through international collaboration and interdisciplinary research, we aim to help transform scientific discoveries into practical solutions that support a more sustainable future.

https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/aenm.202405466

https://advanced.onlinelibrary.wiley.com/doi/abs/10.1002/adfm.74663

"Hydrogen is not only a fuel—it is a bridge connecting renewable electricity, energy storage, and a carbon-neutral future. My goal is to develop materials that make this bridge more efficient, reliable, and accessible."

Yunfeng Tian

School of Materials and Chemistry, China University of Geosciences (Wuhan), China

yunfengup@cug.edu.cn

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