A strategy to control the grain boundary density and Cu+/Cu0 ratio of Cu-based catalysts for efficient electroreduction of CO2 to C2 products,Green Chemistry

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A strategy to control the grain boundary density and Cu+/Cu0 ratio of Cu-based catalysts for efficient electroreduction of CO2 to C2 products
Green Chemistry ( IF 9.3 ) Pub Date : 2020/02/13 , DOI: 10.1039/d0gc00247j
Chunjun Chen _{1,

2,

3,

4,

5} , Xiaofu Sun _{1,

2,

3,

4,

5} , Xupeng Yan _{1,

2,

3,

4,

5} , Yahui Wu _{1,

2,

3,

4,

5} , Mingyang Liu _{1,

2,

3,

4,

5} , Shuaishuai Liu _{1,

2,

3,

4,

5} , Zhijuan Zhao _{1,

2,

3,

4,

5} , Buxing Han _{1,

2,

3,

4,

5}

Affiliation

Cu(OH)₂/CuO nanocomposite-derived Cu₂O/Cu was highly efficient for CO₂ electroreduction to C2 products. The highest faradaic efficiency and current density could reach 64.5% and 26.2 mA cm⁻², respectively. By changing the calcination time, moderate grain boundary density and the Cu⁺/Cu⁰ ratio in catalysts can be controlled, leading to a large number of active sites and low interfacial charge transfer resistance.

中文翻译：

控制铜基催化剂的晶界密度和Cu + / Cu0比的策略，以有效地将CO2电还原为C2产品

Cu（OH）₂ / CuO纳米复合材料衍生的Cu ₂ O / Cu对于将CO ₂电还原为C2产品非常有效。最高法拉第效率和电流密度分别可以达到64.5％和26.2 mA cm ^-2。通过改变煅烧时间，可以控制适度的晶界密度和催化剂中的Cu ⁺ / Cu ⁰比，从而导致大量的活性位点和较低的界面电荷转移阻力。

更新日期：2020-03-09

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