研究成果

Fu Zizhuo, Zhang Jingfang, Wu Haonan, Gao Yanan, Hu Hui, Shi Lijuan, Yi Qun. Ionic Liquids Functionalized Copper Catalytic Systems for Electrocatalytic Carbon Dioxide Reduction. ChemCatChem, e202401049..(SCI, 二区/Q2, IF=3.8)

DOI:10.1002/cctc.202401049

Abstract

  The extensive combustion of fossil fuels results in excessive release of carbon dioxide(CO₂),causing a global environmental crisis. It is imperative to develop sustainable methods for converting CO₂ into renewable energy sources.Electrochemical reduction of CO₂ (CO₂RR) offers the potential to generate valuable chemicals, including C1 products (e.g., carbon mon-oxide,methane, etc.)and C2+ products (e.g., ethene, ethanol, acetic acid, propyl alcohol, etc.). Copper-based (Cu-based) catalysts show promise for producing value-added C2+ products,but they face challenges like low selectivity and stability. The catalytic performances of Cu-based catalysts can be promoted through electronic structure adjustment, selective crystal face exposure,as well as molecular additive approaches. Ionic liquids (ILs), known for their strong CO₂ adsorption capacity, adjustable hydrophobicity, andwide chemical window, hold significant promise for addressing the current challenges associated with Cu-based catalysts. This review provides a comprehensive overview of the structural characterization and catalytic mechanisms of ILs used in Cu-based CO₂RR catalytic systems. Additionally, it offers suggestions for future research avenues regarding IL-functionalized Cu catalysts.

  化石燃料的大量燃烧导致二氧化碳（CO₂）的过量释放，造成全球环境危机。开发将二氧化碳转化为可再生能源的可持续方法势在必行。CO₂的电化学还原（CO₂RR）提供了产生有价值的化学品的潜力，包括C1产品（例如，一氧化碳，甲烷等）和C2+产品（例如，乙烯，乙醇，乙酸，丙醇等）。铜基（Cu-based）催化剂有望生产高附加值的C2+产品，但它们面临着低选择性和稳定性等挑战。铜基催化剂的催化性能可以通过电子结构调整、选择性晶面暴露以及分子添加剂等方法来提高。离子液体（ILs）以其强大的CO₂吸附能力、可调节的疏水性和广泛的化学窗口而闻名，在解决当前与cu基催化剂相关的挑战方面具有重要的前景。本文总结了铜基CO₂RR催化体系中il的结构表征及其催化机理，并对今后离子液体功能化Cu催化剂的研究方向提出了建议。