尿素分解反應為一種具有前景之產氫途徑，因為比水分解更加高效率所需電位較低，但其六電子轉移降低了反應速率，因此開發高性能的尿素氧化催化劑至關重要。雖然貴金屬為高活性表現之電催化劑材料，但其稀少性及高成本限制其應用。近年來，過渡金屬基催化劑展現了很好的尿素氧化活性，而多元金屬離子參雜可調節電子結構以提供更多活性位點，氫氧化物是為電催化表現極好之尿素氧化催化劑，硫參雜或硫化物因為高導電性及高活性是為極有前途之產氫催化劑，然而常見的過渡金屬基催化劑製程如水熱法等都需耗能又耗時，因而降低產氫之效率及應用性。
本研究開發出一種在室溫下進行，節能且快速之單步驟製程，此製程中，材料直接生長在泡沫鎳上，沒有影響表現的黏著劑，以此節能快速製程合成具有金屬相之硫參雜三元鎳鐵鈷氫氧化物作為尿素氧化催化劑，表現出傑出的電化學性能以及高穩定度，本節能製程製出高效之電催化劑，可以達到真正的節能且高效率的產氫經濟性。本研究中會詳細探討此簡單且節能製程之機制，分析鐵和硫之前驅物影響製程反應，並研究多元金屬之協同反應和硫參雜對催化反應之作用，以及在UOR過程中催化劑之轉變機制。

Urea oxidation reaction (UOR) is a promising energy-saving avenue for sustainable hydrogen production. However, the 6-electron transfer reaction lead the sluggish kinetic. In this work, a new, ultrafast, energy-saving one-step corrosion method are developed to synthesize S-NiFeCo(OH)x with metallic phase as the UOR catalyst. The ternary metal catalyst is successfully synthesized by this new method. Most importantly, the addition of sulfur source efficiently facilitates the corrosion reaction to few minutes. The obtained SNiFeCo(OH)x exhibits the outstanding UOR performance with the potential versus RHE of 1.34, 1.36, 1.38, 1.43, and 1.54 V at the current density of 10, 100, 200, 400, and 900 mA cm-2. The S-NiFeCo(OH)x performs the great durability for 50 hours at 10 mA mA cm-2. The outstanding electrochemical performances are attributed to the high surface area, the faster electron transfer due to the metallic phase, sulfur involved and the binder-free synthesis, and the synergistic effects of ternary metals and sulfur involved that adjust the electronic structure to promote more active sites. Using the new, energy-saving, cost-effective, convenient method at room temperature to fabricate a high-performance UOR catalyst is a promising strategy to fulfill the hydrogen economy.

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