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A Symmetric Cogeneration Fuel Cell for Coupled Production of Hydrogen, Ammonia and Formate

水素、アンモニア、ギ酸を同時生成する対称型コジェネレーション燃料電池 (AI 翻訳)

Yingjie Song, Peimiao Zou, R. Wang, Qi Zhang, Yisong Han, C. Waldron, Marc Walker, B. Breeze, Shanwen Tao

Advancement of science📚 査読済 / ジャーナル2026-05-25#水素
DOI: 10.1002/advs.75826
原典: https://doi.org/10.1002/advs.75826

🤖 gxceed AI 要約

日本語

本論文は、ギ酸酸化反応と硝酸還元をカップリングし、発電しながら水素、アンモニア、ギ酸を同時生産する対称型燃料電池を開発。Co(OH)2被覆Cuナノリーフ触媒により、2.35 A cm⁻²の高電流密度と96.38%のファラデー効率を達成した。未補助アンモニア合成系で最高出力密度13.24 mW cm⁻²を記録し、電力を伴う価値ある化学合成の統合戦略を提示する。

English

This paper develops a symmetric cogeneration fuel cell that couples formaldehyde oxidation with nitrate reduction to co-produce hydrogen, ammonia, and formate while generating electricity. Using a Co(OH)2-coated Cu nanoleaf catalyst, it achieves an industrial current density of 2.35 A cm⁻² and Faradaic efficiency of 96.38%. The cell delivers a peak power density of 13.24 mW cm⁻², the highest reported for unassisted ammonia synthesis, offering a versatile platform for paired electrosynthesis.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

本研究成果は、グリーン水素・アンモニアの電解合成に貢献し、日本の水素基本戦略やアンモニア混焼政策と間接的に関連する。実用化にはさらなるスケールアップが必要だが、電力と化学品の同時生産という点で、GX分野での革新的アプローチを示す。

In the global GX context

This work advances the electrification of chemical manufacturing, supporting global decarbonization efforts in the hydrogen and ammonia sectors. It demonstrates a novel approach to integrating renewable electricity with chemical production, which is relevant for emerging green hydrogen and green ammonia standards. However, it remains at the laboratory scale and does not directly address disclosure or policy frameworks.

👥 読者別の含意

🔬研究者:The bifunctional catalyst design and coupled reaction strategy provide a new pathway for high-efficiency electrosynthesis, particularly relevant for those working on electrochemical hydrogen and ammonia production.

🏢実務担当者:Chemical engineers exploring decentralized, electrically driven processes for ammonia and hydrogen may find the high current density and co-generation concept useful for future process design.

🏛政策担当者:Policymakers focused on green hydrogen and ammonia roadmaps should note the potential for electrochemical synthesis to couple chemical production with electricity generation, though further scale-up validation is needed.

📄 Abstract（原文）

Electrochemical synthesis offers a sustainable route to convert abundant feedstocks into value‐added chemicals under mild conditions and couple chemical manufacturing with renewable electricity. However, its practical impact is often limited by system‐level energy inefficiency, motivating rational reaction pairing to reduce energy input while upgrading product value. Here, we develop a symmetric cogeneration fuel cell that couples one‐electron formaldehyde oxidation reaction with nitrate reduction to co‐produce hydrogen, ammonia and formate while generating electricity. This symmetric cell was enabled by a FOR and NO 3 RR bifunctional Cu nano leaves coated with Co(OH) 2 catalyst, which constructs an interfacial hydrogen network capable of synchronizing NO 3 – reduction with active hydrogen delivery. As a result, the catalyst achieves an industrial current density of 2.35 A cm −2 at −1 V vs RHE with a high Faradaic efficiency of 96.38%. Operating at 35°C, the symmetric cell delivers a peak power density of 13.24 mW cm −2 , representing the highest value reported to date for unassisted ammonia synthesis systems. This work establishes a simple yet versatile strategy for integrating value‐added chemical synthesis with electricity generation and offers a generalizable framework for other paired electrosynthesis processes.

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