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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A protocol for quantifying hydrogen evolution by dye-sensitized molecular photocathodes and its implementation for evaluating a new covalent architecture based on an optimized dye-catalyst dyad
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A protocol for quantifying hydrogen evolution by dye-sensitized molecular photocathodes and its implementation for evaluating a new covalent architecture based on an optimized dye-catalyst dyad

机译：一种用于量化染料敏化分子光电量的氢逸出的方案及其基于优化染料催化剂Dyad评估新的共价建筑

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摘要

A protocol that combines gas chromatography and a high-sensitivity micro Clark-type electrode is described to quantify hydrogen production across gas and solution phases for systems operating at very low currents such as dye-sensitized H-2-evolving photocathodes. Data indicate that a significant fraction of H-2 remains in aqueous solution even after several hours of experiments. Using this protocol, re-evaluation of a dye-sensitized H-2-evolving photocathode based on a dye-catalyst dyad showed a reproducible 66% increase of the faradaic efficiency compared with previously reported headspace GC measurements [Kaeffer et al., J. Am. Chem. Soc., 2016, 138, 12308-12311]. This dyad was based on an organic push-pull dye where donor and acceptor are separated by one thiophene group. Insertion of a second thiophene group between the donor and acceptor led to a more efficient system with 30% improved faradaic efficiency for H-2 evolution.
机译：将气相色谱和高灵敏度微克拉克型电极结合的方案来描述用于在气体和溶液相的氢气产生，用于在非常低的电流下操作的系统，例如染料敏化的H-2演化光电阴极。 数据表明，即使在几小时的实验之后，即使在几小时的实验之后，H-2的大部分保持在水溶液中。 使用该方案，基于染料催化剂Dyad的染料敏化的H-2演化光电阴极的再评估与先前报道的网球测量相比，对野蛮效率的再现66％增加了[Kaeffer等，J. 是。 化学。 SOC。，2016,138,12308-12311]。 该二元基于有机推拉染料，供体和受体由一个噻吩基团分离。 在供体和受体之间插入第二个噻吩基团导致更有效的系统，具有30％的H-2进化的野生效率。

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    Windle Christopher D.; Massin Julien; Chavarot-Kerlidou Murielle; Artero Vincent;

  • 作者单位

    Univ Grenoble Alpes Commissariat Energie Atom &

    Energies Alternat CEA CNRS Lab Chim &

    Biol Met 17 Rue Martyrs F-38000 Grenoble France;

    Univ Grenoble Alpes Commissariat Energie Atom &

    Energies Alternat CEA CNRS Lab Chim &

    Biol Met 17 Rue Martyrs F-38000 Grenoble France;

    Univ Grenoble Alpes Commissariat Energie Atom &

    Energies Alternat CEA CNRS Lab Chim &

    Biol Met 17 Rue Martyrs F-38000 Grenoble France;

    Univ Grenoble Alpes Commissariat Energie Atom &

    Energies Alternat CEA CNRS Lab Chim &

    Biol Met 17 Rue Martyrs F-38000 Grenoble France;

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  • 正文语种 eng
  • 中图分类 化学;无机化学;
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