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Phase selective synthesis of nickel silicide nanocrystals in molten salts for electrocatalysis of the oxygen evolution reaction.
Nanoscale ( IF 5.8 ) Pub Date : 2020-07-02 , DOI: 10.1039/d0nr04284f
Ram Kumar 1 , Mounib Bahri 2 , Yang Song 1 , Francisco Gonell 1 , Cyril Thomas 3 , Ovidiu Ersen 2 , Clément Sanchez 1 , Christel Laberty-Robert 1 , David Portehault 1
Affiliation  

We report phase selective synthesis of intermetallic nickel silicide nanocrystals in inorganic molten salts. NiSi and Ni2Si nanocrystals are obtained by reacting a nickel(II) salt and sodium silicide Na4Si4 in the molten LiI–KI inorganic eutectic salt mixture. We report that nickel silicide nanocrystals are precursors to active electrocatalysts in the oxygen evolution reaction (OER) and may be low-cost alternatives to iridium-based electrocatalysts.

中文翻译:

相选择性合成熔融盐中的硅化镍纳米晶体,用于电催化放氧反应。

我们报告在无机熔融盐中金属间硅化镍纳米晶的相选择合成。硅化镍和Ni 2的Si纳米晶体是由镍(反应得到II)盐和钠盐的Na硅化物4的Si 4在熔融的LiI-KI无机共晶盐混合物。我们报告说,硅化镍纳米晶体是氧析出反应(OER)中活性电催化剂的前体,并且可能是铱基电催化剂的低成本替代品。
更新日期:2020-07-23
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