Hydrogen Bubble Templated Metal Foams as Efficient Catalysts of CO2 Electroreduction,ChemCatChem

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Hydrogen Bubble Templated Metal Foams as Efficient Catalysts of CO2 Electroreduction
ChemCatChem ( IF 3.8 ) Pub Date : 2020-11-03 , DOI: 10.1002/cctc.202001145
Soma Vesztergom _{1,

2} , Abhijit Dutta ₁ , Motiar Rahaman ₁ , Kiran Kiran ₁ , Iván Zelocualtecatl Montiel ₁ , Peter Broekmann ₁

Affiliation

The creation of open porous structures with an extremely high surface area is of great technological relevance. The electrochemical deposition of metal foams around co‐generated hydrogen bubbles that act as templates for the deposition is a promising, cheap and simple approach to the fabrication of new electrocatalyst materials. Metal foams obtained by dynamic hydrogen bubble templating (DHBT) offer an intrinsically high electrical conductance with an open porous structure that enables the fast transport of gases and liquids. As an additional benefit, the confined space within the pores of DHBT metal foams may act as small reactors that can harbour reactions not possible at an open electrode interface. The number, distribution, and size of the pores can be fine‐tuned by an appropriate choice of the electrolysis parameters so that metal foam catalysts prepared by the DHBT technique meet certain requirements. In this paper, we review the preparation of certain metal foams, and their applications as catalysts for the electrochemical reduction of CO₂.

中文翻译：

氢气泡模板金属泡沫作为高效电还原CO2的催化剂

具有极高表面积的开放式多孔结构的产生具有重大的技术意义。金属泡沫在共生氢气泡周围的电化学沉积，作为沉积模板，是制造新型电催化剂材料的一种有前途，廉价且简单的方法。通过动态氢气泡模板（DHBT）获得的金属泡沫具有固有的高电导率，并具有开放的多孔结构，能够快速输送气体和液体。另一个好处是，DHBT金属泡沫的孔内有限的空间可以充当小的反应器，可以容纳开放电极界面不可能发生的反应。数量，分布，和孔的大小可以被微调通过电解参数的适当选择，从而通过DHBT技术满足一定的要求制备的泡沫金属的催化剂。在本文中，我们回顾了某些金属泡沫的制备及其在催化电化学还原CO方面的应用。₂。

更新日期：2020-11-03

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