Developing selective and cost-effective CO₂ reduction electrocatalysts is critical for electrochemical production of carbon-containing fuels. In this communication, we report on the in situ fabrication of a bromide-derived porous Ag nanowire film (BD-Ag) with adsorbed Br⁻ anions via anodic oxidation of commerical Ag foil and subsequent electrochemical reduction. The resulting BD-Ag behaves as an efficient electrocatalyst for CO₂ reduction to CO with high selectivity, with a low onset overpotential of only 296 mV and a high CO faradaic efficiency of 96.2% in 0.5 M KHCO₃. Furthermore, it also shows excellent long-term electrochemical durability. This work offers an attractive catalyst material toward efficient and selective CO₂ reduction for electrocatalytic applications.

中文翻译：

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的BR ^-阴离子吸附多孔银纳米线膜：原位电化学制备和应用朝向高效CO ₂电还原到CO以高选择性†

开发选择性且具有成本效益的CO ₂还原电催化剂对于含碳燃料的电化学生产至关重要。在该通信中，我们对报告原位溴化物衍生的多孔银纳米线膜（BD-Ag）的具有吸附的Br制造^-阴离子通过商用的Ag箔和随后的电化学还原的阳极氧化。所得的BD-Ag具有高选择性，可作为将CO ₂还原为CO的有效电催化剂，在0.5 M KHCO _3中的起始电位低，仅为296 mV，CO法拉第效率高，为96.2％。。此外，它还显示出优异的长期电化学耐久性。这项工作提供了一种有吸引力的催化剂材料，可用于电催化应用中的有效和选择性的CO ₂还原。