An Insight into Anchoring of Cobalt Phthalocyanines onto Carbon: Efficiency of the CO2 Reduction Reaction,ACS Applied Energy Materials

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An Insight into Anchoring of Cobalt Phthalocyanines onto Carbon: Efficiency of the CO2 Reduction Reaction
ACS Applied Energy Materials ( IF 5.4 ) Pub Date : 2021-02-01 , DOI: 10.1021/acsaem.0c02645
Jing-Jing Ma ₁ , Hong-Lin Zhu ₁ , Yue-Qing Zheng ₁ , Miao Shui _{1,

2}

Affiliation

Electrochemical CO₂ reduction into CO with metal phthalocyanines/substrate catalysts has been receiving extensive attention due to unique activities and tunability. However, the anchoring sites and reaction mechanism still remain much debatable. In this work, through integrations of Raman spectroscopy with theoretical calculations, the anchoring location site and mechanism of CoPc on substrates were confirmed using cobalt phthalocyanine on acetylene black as model catalysts. The theoretical calculations show that the resultant CoPc/C catalyst exhibits an excellent catalytic activity for electrocatalytic CO₂ reduction with low overpotential and high selectivity of CO because the defect beneath the benzene ring is more effective in anchoring CoPc.

中文翻译：

酞菁钴固定在碳上的见解：CO ₂还原反应的效率

金属酞菁/底物催化剂将电化学将CO ₂还原为CO的方法因其独特的活性和可调节性而受到广泛关注。但是，锚固位点和反应机理仍然值得商de。在这项工作中，通过将拉曼光谱与理论计算相结合，使用钴酞菁在乙炔黑上作为模型催化剂，证实了CoPc在底物上的固定位置和机理。理论计算表明，由于苯环下方的缺陷更有效地固定了CoPc ，因此所得CoPc / C催化剂对电催化还原CO ₂具有优异的催化活性，且电势低，且具有较高的CO选择性。

更新日期：2021-02-22

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