Catalysts assumed that properly designed bimetallic systems would provide superior catalytic performance due to the cooperative effects between two atoms. Dual single-atom catalyst (DSAC) PdN₄/CuN₄ is synthesized using a simple, cost-effective, and efficient electrochemical reduction method. The palladium single-atom is prepared first by electrochemical reduction of copper phthalocyanine to create defective N₄ sites. The new structural feature is characterized by copper reduction from Cu-N₄ coordination and the formation of defected N₄ (▫_M-N₄) sites, which react with a Pd precursor and form PdN₄ on the host surface. The DSAC PdN₄/CuN₄ technique synergistically improves electrocatalytic performance toward the ethylene glycol oxidation reaction. It possesses excellent glycolate selectivity (above 88%) in an alkaline solution with an onset oxidation potential as low as 0.6 V versus a reversible hydrogen electrode, compared to commercial Pd/C. The DSAC electrocatalyst is characterized by its high current density of 83.92 mA cm⁻² and high faradic efficiency value (>80%) for glycolate at 1.0 V_RHE. The findings suggest a promising method to synthesize the DSACs in varying transition metals to achieve highly efficient, selective, and environmentally friendly catalysts for different applications.

中文翻译：

---

用于乙二醇部分氧化的 Pd?N4/Cu?N4 双单原子催化剂的可持续合成

催化剂认为，由于两个原子之间的协同作用，适当设计的双金属系统将提供卓越的催化性能。双单原子催化剂 (DSAC) Pd  N ₄ /Cu  N ₄采用简单、经济高效的电化学还原方法合成。_{首先通过电化学还原铜酞菁以产生有缺陷的 N 4}位点来制备钯单原子。新的结构特征的特点是铜从 Cu-N ₄配位还原并形成有缺陷的 N ₄ (▫ _M -N ₄ ) 位点，该位点与 Pd 前体反应并形成 Pd N ₄在主体表面上。DSAC Pd  N ₄ /Cu  N ₄技术协同提高了乙二醇氧化反应的电催化性能。与商业 Pd/C 相比，它在碱性溶液中具有优异的乙醇酸选择性（高于 88%），与可逆氢电极相比，起始氧化电位低至 0.6 V。DSAC 电催化剂的特点是其 83.92 mA cm ^{-2的高电流密度和在 1.0} V _RHE下对乙醇酸盐的高法拉第效率值 (>80%). 研究结果提出了一种很有前景的方法，可以在不同的过渡金属中合成 DSAC，从而获得适用于不同应用的高效、选择性和环境友好型催化剂。