Nitrogen and Sulfur Co‐doped Carbon Nanosheets for Electrochemical Reduction of CO2,ChemCatChem

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Nitrogen and Sulfur Co‐doped Carbon Nanosheets for Electrochemical Reduction of CO2
ChemCatChem ( IF 3.8 ) Pub Date : 2020-03-02 , DOI: 10.1002/cctc.201902326
Genxiang Wang ₁ , Mengyan Liu ₁ , Jingchun Jia ₁ , Huimin Xu ₁ , Baisheng Zhao ₁ , Keyuan Lai ₁ , Chaoyang Tu ₂ , Zhenhai Wen ₁

Affiliation

Conversing CO₂ into value‐added chemicals endows electrochemical CO₂ reduction reaction (CO₂RR) with the potential to tackle over issues induced by the increased CO₂ level in the atmosphere. The associated technological viability of this process is highly dependent on exploring efficient electrocatalysts. In this work, we successfully synthesized nitrogen and sulfur co‐doped carbon nanosheets (NS‐CNSs), which are comprehensively characterized by a variety of characterization techniques. When used as the catalyst for CO₂RR, the NS‐CNSs exhibit remarkably high catalytic activity and selectivity with a Faradaic efficiency of ∼85.4 % for CO production and long‐term durability. The superior performance of this material majorly originates from the unique nanosheets structure with large porosity and the co‐doped S and N in the nanosheets, which exposed larger electrochemical activity surface areas and more active sites for promoting CO₂ reduction.

中文翻译：

氮和硫共掺杂碳纳米片，用于电化学还原CO2

将CO ₂转化为高附加值的化学物质可实现电化学的CO ₂还原反应（CO ₂ RR），有可能解决大气中CO ₂含量增加引起的问题。该方法的相关技术可行性高度依赖于探索有效的电催化剂。在这项工作中，我们成功地合成了氮和硫共掺杂的碳纳米片（NS-CNS），这些碳片通过多种表征技术进行了全面表征。当用作CO ₂的催化剂时RR中，NS-CNS表现出显着的高催化活性和选择性，对CO的生产和长期耐久性具有约85.4％的法拉第效率。这种材料的卓越性能主要源自具有大孔隙率的独特纳米片结构以及纳米片中共掺杂的S和N，从而暴露出更大的电化学活性表面积和更多的促进CO ₂还原的活性位点。

更新日期：2020-04-22

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