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Adatom Surface Modification of Metal Nanoparticle Electrodes Though Underpotential Deposition for CO_2 Electroreduction Catalysis

机译:金属纳米颗粒电极的ADATOM表面改性虽然CO_2电催化催化下电沉积

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The electrocatalytic CO_2 reduction reaction to form higher order carbon-coupled products is a complex interplay of CO binding energies, kinetic rate-constant branching ratios, CO_2 solubility, and pH gradients. The result of this wide, and often uncontrolled parameter space is a distribution of CO_2RR products, especially in carbon-coupled reactions. Designing electrocatalysts that promote any of these parameters individually is an attractive route to not only build selective CO_2RR catalysts, but also to provide the framework of design principals for selective electrocatalysis. To this end, systematically varying the electrode kinetics of CO_2 reduction reactions on model system substrates through minor surface modifications is an informative approach for understanding this complicated reaction and how certain products can be expressed or suppressed.
机译:形成高阶碳偶联产物的电催化CO_2还原反应是CO结合能量,动力率 - 恒定支化比,CO_2溶解度和pH梯度的复杂相互作用。 这一宽,通常不受控制的参数空间是CO_2RR产品的分布,尤其是碳偶联反应。 设计促进任何这些参数的电催化剂单独地是一个有吸引力的路线,不仅是构建选择性CO_2RR催化剂的途径,还提供了用于选择性电常分的设计主体框架。 为此,通过轻微的表面修饰系统地改变CO_2还原反应的电极动力学是模型系统衬底上的一种信息,以了解这种复杂反应以及如何表达或抑制某些产品。

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