Unlocking the door to highly active ORR catalysts for PEMFC applications: polyhedron-engineered Pt-based nanocrystals,Energy & Environmental Science

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Unlocking the door to highly active ORR catalysts for PEMFC applications: polyhedron-engineered Pt-based nanocrystals
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2017-12-18 00:00:00 , DOI: 10.1039/c7ee02444d
Yan-Jie Wang _{1,

2,

3,

4,

5} , Wenyu Long _{1,

2,

3,

4,

6} , Lele Wang _{4,

5,

7,

8,

9} , Rusheng Yuan _{4,

5,

7,

8,

9} , Anna Ignaszak _{10,

11,

12,

13} , Baizeng Fang _{6,

13,

14,

15} , David P. Wilkinson _{6,

13,

14,

15}

Affiliation

Proton exchange membrane fuel cells (PEMFCs) are considered to be an important low-carbon energy conversion technology, which has shown impressive performance improvement in the past decades. However, the sluggish kinetics of the oxygen reduction reaction (ORR) at the cathode has been an impediment to the successful commercialization of the technology. Novel highly active electrocatalysts for the ORR are highly desired to meet the US DOE performance targets. In recent years, polyhedron-engineered Pt-alloy nanocrystals have demonstrated unprecedented electrocatalytic activity. Different from previous reviews on shape-manipulated Pt-based ORR catalysts, this review focuses on 3D polyhedron-engineered Pt-based nanocrystal electrocatalysts with an in-depth comparison of different active facet-tailored geometric configurations and their advanced electrocatalytic properties. The review carefully examines and criticizes the aggregated data in this area, and provides an important overview as well as a critical insight into the topic. Understanding the catalytic mechanism taking place with polyhedron-designed Pt-based nanocrystals helps to unlock the door to highly active ORR electrocatalysts for PEMFC applications.

中文翻译：

为PEMFC应用打开高活性ORR催化剂的大门：多面体设计的Pt基纳米晶体

质子交换膜燃料电池（PEMFC）被认为是一种重要的低碳能量转换技术，在过去的几十年中已显示出令人印象深刻的性能提升。然而，在阴极处的氧还原反应（ORR）的动力学缓慢已成为该技术成功商业化的障碍。迫切需要用于ORR的新型高活性电催化剂，以满足美国DOE的性能目标。近年来，多面体工程化的Pt合金纳米晶体表现出前所未有的电催化活性。与先前对形状操纵的基于Pt的ORR催化剂的评论不同，这篇综述着重于3D多面体设计的Pt基纳米晶体电催化剂，并深入比较了不同的活性小面量身定制的几何构型及其先进的电催化性能。该评论仔细检查并批评了该领域中的汇总数据，并提供了重要的概述以及对该主题的重要见解。了解多面体设计的基于Pt的纳米晶体发生的催化机理有助于为PEMFC应用打开通往高活性ORR电催化剂的大门。

更新日期：2017-12-18

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