A binuclear iron-thiolate catalyst for electrochemical hydrogen production in aqueous micellar solution.

A binuclear iron-thiolate catalyst for electrochemical hydrogen production in aqueous micellar solution.
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一种双核硫醇铁催化剂,用于在胶束水溶液中电化学产氢。

DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
F. Gloaguen
F. Gloaguen
中科院分区:
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文献类型:
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作者:
F. Quentel;Guillaume Passard;F. Gloaguen

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取代铁硫酸盐配合物[Fe(2)(μ-bdt)(CO)(4){P(OMe)(3)}(2)] (bdt=苯二硫酸盐)是十二烷基硫酸钠水溶液中电化学制氢的活性催化剂,具有较高的表观速率常数4×10(6) M(-1) s(-1)。与pH值为3的标准氢电极相比,催化质子还原的半峰电位小于负-0.6 V。伏安数据与扩散控制的电极反应速率一致。提出了一种由硫代铁催化剂的快速质子化开始的机理。在稀HCl溶液中,法拉第效率接近100%,但在醋酸存在下电解时,催化活性在12次左右就衰减了。
The substituted iron-thiolate complex [Fe(2)(μ-bdt)(CO)(4){P(OMe)(3)}(2)] (bdt=benzenedithiolate) is an active catalyst for electrochemical hydrogen production in aqueous sodium dodecyl sulfate solution, with a high apparent rate constant of 4×10(6) M(-1) s(-1). The half-peak potential for catalysis of proton reduction is less negative than -0.6 V versus the standard hydrogen electrode at pH 3. Voltammetric data are consistent with the rate of electrode reaction controlled by diffusion. A mechanism that begins with the rapid protonation of the iron-thiolate catalyst is proposed. The Faradaic efficiency in diluted HCl solutions is close to 100%, but the catalytic activity decayed after about twelve turnovers when electrolysis was carried out in the presence of acetic acid.
DOI: 10.1039/b801796b
发表时间: 2009-01
影响因子: 46.2
作者:
Gloaguen F;Rauchfuss TB
通讯作者: Rauchfuss TB
可见光分解水:用于制氢的纳米光电阴极。
DOI: 10.1002/anie.200906262
发表时间: 2010
期刊: Angewandte Chemie (International ed. in English)
影响因子: --
作者:
Nann T
通讯作者: Nann T