Regulating Electrocatalysts via Surface and Interface Engineering for Acidic Water Electrooxidation,ACS Energy Letters

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Regulating Electrocatalysts via Surface and Interface Engineering for Acidic Water Electrooxidation
ACS Energy Letters ( IF 19.3 ) Pub Date : 2019-10-22 , DOI: 10.1021/acsenergylett.9b01758
Jieqiong Shan _{1,

2} , Yao Zheng _{1,

2} , Bingyang Shi ₃ , Kenneth Davey _{1,

2} , Shi-Zhang Qiao _{1,

2}

Affiliation

Although proton exchange membrane (PEM) water electrolyzers offer a promising means for generation of hydrogen fuel from solar and wind energy, in acidic environments the corresponding anodic oxygen evolution reaction (OER) remains a bottleneck. Because the activity and stability of electrocatalysts depend significantly on physicochemical properties, material surface and interface engineering can offer a practical way to boost performance. To date, significant advances have been made using a judicious combination of advanced theoretical computations and spectroscopic characterizations. To provide a critical assessment of this field, we focus on the establishment of material property–catalytic activity relationships. We start with a detailed exploration of prevailing OER mechanisms in acid solution through evaluating the role of catalyst lattice oxygen. We then critically review advances in surface and interface engineering in acidic OER electrocatalysts from both experimental and theoretical perspectives. Finally, a few promising research orientations are proposed to inspire future investigation of high-performance PEM catalysts.

中文翻译：

通过表面和界面工程调节酸性水电氧化的电催化剂

尽管质子交换膜（PEM）水电解槽提供了一种利用太阳能和风能产生氢燃料的有前途的方法，但在酸性环境中，相应的阳极氧析出反应（OER）仍然是瓶颈。由于电催化剂的活性和稳定性在很大程度上取决于理化性质，因此材料表面和界面工程可以提供一种提高性能的实用方法。迄今为止，使用先进的理论计算和光谱表征的明智组合已经取得了重大进展。为了提供对该领域的重要评估，我们专注于建立材料特性与催化活性之间的关系。我们通过评估催化剂晶格氧的作用，开始详细探索酸溶液中普遍存在的OER机理。然后，我们从实验和理论角度严格地回顾了酸性OER电催化剂在表面和界面工程方面的进展。最后，提出了一些有前途的研究方向，以激发对高性能PEM催化剂的未来研究。

更新日期：2019-10-23

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