A tetrafluoro substituted CoPc (CoF₄Pc), which is well dispersed in N,N-dimethylformamide (DMF), was used to modify carbon nanotubes (CNTs) via a facile sonication method, resulting in CoF₄Pc nanorods with the length lower than 30 nm on the CNT surface. The as-fabricated CoF₄Pc-CNT composites showed superior CO₂RR catalytic activity compared with that of individual CoF₄Pc, due to enhanced mass transfer and electrical conductivity arising from the CNT substrate. The CoF₄Pc-CNT composite with the CoF₄Pc/CNT weight ratio of 2:30 exhibited the highest CO current density of 29.0 mA cm⁻² and CO selectivity of 91.8% at − 0.85 V vs. reversible hydrogen electrode (RHE) in a flow cell setup containing 0.5 M KHCO₃, which was ascribed to enhanced charge transfer induced by highly dispersion of CoF₄Pc nanorods, and good conductivity of CNT substrates. The work provides new insights for developing low-cost, effective, phthalocyanine-based catalysts for electrochemical CO₂RR.

四氟取代的 CoPc (CoF ₄ Pc) 很好地分散在 N,N-二甲基甲酰胺 (DMF) 中，用于通过简便的超声处理方法对碳纳米管 (CNT) 进行改性，得到长度小于的 CoF 4 Pc纳米_棒CNT 表面 30 nm。_{与单个 CoF 4} Pc相比，制造的 CoF ₄ Pc-CNT 复合材料显示出优异的 CO ₂ RR 催化活性，这是由于 CNT 基板产生的增强的传质和导电性。CoF ₄ Pc/CNT重量比为2:30的CoF ₄ Pc-CNT复合材料表现出最高的CO电流密度为29.0 mA cm ^-2_{在包含 0.5 M KHCO 3 的}流通池装置中，在 − 0.85 V 与可逆氢电极 (RHE) 下，CO 选择性为 91.8%，这归因于 CoF ₄ Pc 纳米棒的高度分散引起的电荷转移增强，以及良好的导电性碳纳米管基板。_{该工作为开发用于电化学 CO 2} RR的低成本、有效的酞菁基催化剂提供了新的见解。