Efficient Electroreduction CO2 to CO over MnO2 Nanosheets,Inorganic Chemistry

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Efficient Electroreduction CO2 to CO over MnO2 Nanosheets
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2019-05-15 00:00:00 , DOI: 10.1021/acs.inorgchem.9b01018
Xianyun Peng ₁ , Ying Chen ₁ , Yuying Mi ₁ , Longchao Zhuo ₂ , Gaocan Qi ₃ , Junqiang Ren ₄ , Yuan Qiu ₁ , Xijun Liu ₁ , Jun Luo ₁

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As a critical alternative step for the synthesis of important chemical feedstocks and complex carbon-based fuels, the electrochemical transformation of CO₂ into CO holds great significance for the chemical industry. Here, MnO₂ nanosheets array supported nickel foam has been synthesized and adopted as a binder-free catalyst for electrochemical CO₂ reduction reaction (CO₂RR). The well-distributed nanosheets of MnO₂ impart a much higher density of accessible active sites for CO₂RR, enabling the selective CO₂ reduction to CO with a large current density (14.1 mA cm^–2), excellent Faradaic efficiency (71%) and high electrochemical stability (10 h). This work first demonstrates the great potential of Mn-based oxides for electrocatalytic transformation of CO₂ to valuable products.

中文翻译：

高效电还原CO ₂以CO过的MnO ₂纳米片

作为重要的化学原料和复杂的碳基燃料合成的关键替代步骤，CO ₂电化学转化为CO对化学工业具有重要意义。在此，已经合成了MnO ₂纳米片阵列负载的镍泡沫，并被用作电化学CO ₂还原反应（CO ₂ RR）的无粘结剂催化剂。分布均匀的MnO ₂纳米片为CO ₂ RR提供了更高的可及活性位点密度，从而能够以大电流密度（14.1 mA cm ^–2）选择性地将CO ₂还原为CO。），优异的法拉第效率（71％）和高电化学稳定性（10 h）。这项工作首先证明了锰基氧化物在将CO ₂电催化转化为有价值的产品方面的巨大潜力。

更新日期：2019-05-15

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