Rethinking Co(CO3)0.5(OH)·0.11H2O: a new property for highly selective electrochemical reduction of carbon dioxide to methanol in aqueous solution,Green Chemistry

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Rethinking Co(CO3)0.5(OH)·0.11H2O: a new property for highly selective electrochemical reduction of carbon dioxide to methanol in aqueous solution
Green Chemistry ( IF 9.3 ) Pub Date : 2018-03-02 , DOI: 10.1039/c7gc03744a
Jianzhi Huang _{1,

2,

3,

4,

5} , Qiong Hu _{1,

2,

3,

4,

5} , Xinrong Guo _{1,

2,

3,

4,

5} , Qiang Zeng _{1,

2,

3,

4,

5} , Lishi Wang _{1,

2,

3,

4,

5}

Affiliation

Co(CO₃)_0.5(OH)·0.11H₂O is usually acknowledged and used as a precursor to synthesize other nanomaterials. However, some important properties of Co(CO₃)_0.5(OH)·0.11H₂O have not been discovered yet. Herein, we report an important new property of hollow urchin-like Co(CO₃)_0.5(OH)·0.11H₂O for highly selective electrochemical reduction of carbon dioxide to methanol in NaHCO₃ aqueous solution at −0.98 V versus saturated calomel electrode (SCE) with Faradaic efficiency of up to 97.0% under ambient conditions, which is superior to most of the electrocatalysts reported to date. Finally, this low-cost electrocatalyst shows great potential in CO₂ conversion industry for practical application in the future.

中文翻译：

对Co（CO ₃）_0.5（OH）·0.11H ₂ O的重新思考：水溶液中二氧化碳高选择性电化学还原为甲醇的新性质

通常公认Co（CO ₃）_0.5（OH）·0.11H ₂ O，并用作合成其他纳米材料的前体。但是，尚未发现Co（CO ₃）_0.5（OH）·0.11H ₂ O的一些重要性质。在此，我们报告了空心顽固状的Co（CO ₃）_0.5（OH）·0.11H ₂ O与在-0.98 V下NaHCO ₃水溶液中的二氧化碳高选择性电化学还原成甲醇相比的重要新性能。饱和甘汞电极（SCE），在环境条件下的法拉第效率高达97.0％，优于迄今为止报道的大多数电催化剂。最后，这种低成本的电催化剂在CO ₂转化工业中显示出巨大的潜力，可在将来实际应用。

更新日期：2018-07-02

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