Pyridinium functionalized coordination containers as highly efficient electrocatalysts for sustainable oxygen evolution
Pyridinium functionalized coordination containers as highly efficient electrocatalysts for sustainable oxygen evolution
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吡啶功能化配位容器作为可持续析氧的高效电催化剂
DOI：
10.1039/c7ta05797k
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发表时间：
2017-12-07
影响因子：
11.9
通讯作者：
Chen, Zhong-Ning
中科院分区：
文献类型：
--
作者：
Bhuvaneswari, Nagarajan;Annamalai, K. P.;Chen, Zhong-Ning
通过M2+（M = Co，Ni）、对叔丁基磺酰基杯[4]芳烃和吡啶功能化的角柔性二羧酸连接体H2 BrL 1的自组装，合成了精心设计的八核配位容器。吡啶功能化配位容器作为水氧化的强分子电氧化催化剂已经得到了很好的研究。它们表现出有效的电催化析氧反应（OER）活性，具有0.290 V的最低过电位以提供10 mA cm-2电流密度，并且在48 h内具有显著的稳定性，而过电位没有任何显著的偏移。配位容器的功能化策略为实现具有高效率和优异稳定性的可持续析氧提供了新的方法，并且为设计和实现用于能量存储和转换技术的功能性超分子材料提供了新的机会。
Elaborately designed octanuclear coordination containers were synthesized through the self-assembly of M2+ (M = Co, Ni), p-tert-butylsulfonylcalix[4]arene, and pyridinium functionalized angular flexible dicarboxylate linker, H2BrL1. The pyridinium functionalized coordination containers as robust molecular electrooxidation catalysts for water oxidation have been well investigated. They exhibited efficient electrocatalytic oxygen evolution reaction (OER) activity with the lowest overpotential of 0.290 V to afford 10 mA cm−2 current density and remarkable stability over 48 h without any significant shift in the overpotential. The strategy for the functionalization of coordination containers provides a novel approach to achieve sustainable oxygen evolution with high efficiency and excellent stability, and a new opportunity for designing and realizing functional supramolecular materials for energy storage and conversion technologies.