cobalt(II) 5,10,15,20-tetraethynylporphyrin | 1604802-80-3

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: cobalt(II) 5,10,15,20-tetraethynylporphyrin
• CAS: 1604802-80-3
• 化学式: C₂₈H₁₂CoN₄
• 分子量: 463.423
• InChiKey: KMXJMGQDWVLXOP-QYXUKJHESA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  5,10,15,20-tetrakis[(trimethylsilyl)ethynyl]porphyrinato Co(II) 在 四丁基氟化铵 作用下， 以 四氢呋喃 为溶剂， 以95%的产率得到cobalt(II) 5,10,15,20-tetraethynylporphyrin
  参考文献：
  名称：

  Carbon Nanotube-Templated Synthesis of Covalent Porphyrin Network for Oxygen Reduction Reaction

  摘要：

  The development of innovative techniques for the functionalization of carbon nanotubes that preserve their exceptional quality, while robustly enriching their properties, is a central issue for their integration in applications. In this work, we describe the formation of a covalent network of porphyrins around MWNT surfaces. The approach is based on the adsorption of cobalt(II) meso-tetraethynylporphyrins on the nanotube sidewalls followed by the dimerization of the triple bonds via Hay-coupling; during the reaction, the nanotube acts as a template for the formation of the polymeric layer. The material shows an increased stability resulting from the cooperative effect of the multiple pi-stacking interactions between the porphyrins and the nanotube and by the covalent links between the porphyrins. The nanotube hybrids were fully characterized and tested as the supported catalyst for the oxygen reduction reaction (ORR) in a series of electrochemical measurements under. acidic conditions. Compared to similar systems in which monomeric porphyrins are simply physisorbed, MWNT-CoP hybrids showed a higher ORR activity associated with a number of exchanged electrons close to four, corresponding to the complete reduction of oxygen into water.

  DOI：

  10.1021/ja500984k

文献信息

• Covalent Cobalt Porphyrin Framework on Multiwalled Carbon Nanotubes for Efficient Water Oxidation at Low Overpotential
  作者：Hongxing Jia、Zijun Sun、Daochuan Jiang、Pingwu Du

  DOI：10.1021/acs.chemmater.5b00882

  日期：2015.7.14

  A noble-metal-free, efficient, and robust catalyst made of Earth-abundant elements for water oxidation is vital to achieve practical water splitting for future clean energy production. Herein, we report the synthesis of multilayer covalent cobalt porphyrin framework on multiwalled carbon nanotubes ((CoP)n-MWCNTs) to produce a highly active electrocatalyst for water oxidation. A linear sweep voltammetry

  一种由无土金属制成的高效，无贵金属的催化剂，可用于水氧化，对于实现未来的清洁能源生产中实际的水分解至关重要。在本文中，我们报道了在多壁碳纳米管（（CoP）n -MWCNTs）上合成多层共价钴卟啉骨架以生产用于水氧化的高活性电催化剂。线性扫描伏安曲线表明催化电流密度为1.0 mA / cm 2在pH为13.6的碱性溶液中，仅需在1.52 V（vs RHE，对应于仅0.29 V的超电势）的电势下即可实现。这样的发作电位远低于钴卟啉单体（CoP-TIPS）和纯MWCNT。另外，计时电位数据证实了其优异的催化活性，并表明（CoP）n -MWCNTs催化剂对水氧化催化具有良好的耐久性。通过本体电解测量获得的Tafel斜率为每十年60.8 mV，氧气产生的法拉第效率为> 86％。