▌Sustainable Ammonia Electrosynthesis Coupled With Glycerol Valorization via an Adaptive Tri-Component Catalyst
以自適應三組分催化劑實現耦合甘油增值的永續電合成氨
C. Nickel, D. L. Troglauer, C. Y. Chang, T. Bai, T. Rios-Studer, I. Lieberwirth, K. Sowa, B. Mashtakov, B. F. Mohazzab, L. Ci, D. Li*, X. Lin*, B. J. Hwang*, R. Liu* and D. Gao*
https://doi.org/10.1002/anie.202522014
SEED Member: B. J. Hwang

Major Contributions
1. A Cu-Ni-W tri-component tandem catalyst synthesized via sequential microwave-hydrothermal deposition delivers 97.1% Faradaic efficiency and a record 43.87 mg h⁻¹ cm⁻² ammonia yield from electrochemical nitrate reduction under pulsed electrolysis.
2. Online DEMS and DFT reveal cooperative catalytic roles: Cu facilitates NO₃⁻ adsorption and deoxygenation, Ni promotes water dissociation for *H supply, and W acts as a dynamic *H reservoir to suppress competing hydrogen evolution.
3. Coupling the nitrate reduction anode with glycerol valorization (formic acid production) demonstrates an energy-efficient integrated system, providing a design blueprint for multi-component tandem catalysts for sustainable ammonia electrosynthesis.
主要貢獻
1. 以微波水熱法合成的 Cu-Ni-W 三組分串聯催化劑在脈衝電解條件下從電化學硝酸鹽還原實現 97.1% 法拉第效率與創紀錄的 43.87 mg h⁻¹ cm⁻² 氨產率。
2. 線上 DEMS 與 DFT 揭示協同催化作用:Cu 促進 NO₃⁻ 吸附與去氧,Ni 促進水解離提供 *H,W 作為動態 *H 儲庫抑制競爭性析氫。
3. 將硝酸鹽還原陽極與甘油增值(甲酸生產)耦合,展示高效能源整合體系,為多組分串聯催化劑用於永續電合成氨提供設計藍圖。





