Enhanced electrocatalytic ethanol oxidation reaction in alkaline media over Pt on a 2D BiVO4-modified electrode under visible light irradiation†,Catalysis Science & Technology

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Enhanced electrocatalytic ethanol oxidation reaction in alkaline media over Pt on a 2D BiVO4-modified electrode under visible light irradiation†
Catalysis Science & Technology ( IF 4.4 ) Pub Date : 2018-06-20 00:00:00 , DOI: 10.1039/c8cy00864g
Jiayue Hu _{1,

2,

3,

4} , Chunyang Zhai _{1,

2,

3,

4} , Lixi Zeng _{4,

5,

6,

7,

8} , Yukou Du _{9,

10,

11,

12,

13} , Mingshan Zhu _{1,

2,

3,

4,

5}

Affiliation

Bismuth vanadate (BiVO₄), as a typical visible-light-activated semiconductor, has attracted much attention in water oxidation. In this paper, we extend it to be a visible-light responsive support for the application of electrocatalytic ethanol oxidation reaction (EOR). Firstly, two dimensional (2D) BiVO₄ nanosheets were synthesized, and then worked as the support for the decoration of Pt nanoparticles. Pt nanoparticles of ultra-small size with an average diameter of 3.5 nm were well dispersed on the surface of as-synthesized 2D BiVO₄ nanosheets. By using the as-prepared Pt–BiVO₄ as a working electrode, 2.7 folds enhanced catalytic activity for the EOR were achieved under visible light irradiation compared to that under dark conditions. The synergistic effect of photocatalysis and electrocatalysis together with the 2D structure of BiVO₄ result in the improvement of the catalytic performance.

中文翻译：

在可见光照射下，在二维BiVO ₄修饰电极上的Pt上，在碱性介质上的Pt上增强的电催化乙醇氧化反应†

钒酸铋（BiVO ₄），作为一种典型的可见光激活半导体，在水氧化中引起了很多关注。在本文中，我们将其扩展为电催化乙醇氧化反应（EOR）应用的可见光响应支持。首先，合成了二维（2D）BiVO ₄纳米片，然后将其用作装饰Pt纳米粒子的载体。平均直径为3.5 nm的超小尺寸的Pt纳米颗粒很好地分散在刚合成的2D BiVO ₄纳米片的表面上。通过使用准备好的Pt–BiVO ₄作为工作电极，与黑暗条件下相比，在可见光照射下，EOR的催化活性提高了2.7倍。光催化和电催化的协同作用以及BiVO ₄的2D结构导致催化性能的提高。

更新日期：2018-06-20

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