Water-soluble and air-stable [2Fe-2S]-metallopolymers: A new class of electrocatalysts for H 2 production via water splitting
Water-soluble and air-stable [2Fe-2S]-metallopolymers: A new class of electrocatalysts for H 2 production via water splitting
复制标题
水溶性且空气稳定的[2Fe-2S]金属聚合物：通过水分解生产H 2 的新型电催化剂
DOI：
10.1080/10426507.2019.1603705
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Evans, Dennis H.
中科院分区：
文献类型：
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作者：
Glass, Richard S.;Pyun, Jeffrey;Lichtenberger, Dennis L.;Brezinski, William P.;Karayilan, Metin;Clary, Kayla E.;Pavlopoulos, Nicholas G.;Evans, Dennis H.
[2Fe-2S]金属有机配合物是乙腈中弱酸还原生成分子氢(HER)(析氢反应)的有效电催化剂。通过原子转移自由基聚合(ATRP)将这种[2Fe-2S]催化中心引入到金属聚合物中。这些定义明确的聚合物已经通过SEC、1H核磁共振和红外光谱进行了结构表征。这些金属聚合物催化乙腈中乙酸的电化学还原。此外，[2Fe-2S]金属聚合物中添加了氨基，在pH值为7时具有良好的水溶性和产氢活性。除了在水中具有优异的催化活性外，这些催化剂在空气中的催化活性也不同于同类分子催化剂。
[2Fe–2S] organometallic complexes are effective electrocatalysts for the reduction of weak acids in acetonitrile to generate molecular hydrogen (H 2)(hydrogen evolution reaction, HER). Incorporation of such a [2Fe–2S] catalytic site into metallopolymers has been achieved using atom transfer radical polymerization (ATRP). These well-defined polymers have been structurally characterized by SEC, 1 H NMR and IR spectroscopy. These metallopolymers catalyze the electrochemical reduction of acetic acid in acetonitrile. In addition,[2Fe–2S] metallopolymers appended with amino groups were shown to be water-soluble and potent electrocatalysts for H 2 production at pH 7. In addition to the exceptional activity of these [2Fe–2S] metallopolymers in water, these catalysts maintain catalytic activity in air unlike comparable molecular catalysts.