Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance,Inorganic Chemistry Frontiers

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Electron-withdrawing anion intercalation and surface sulfurization of NiFe-layered double hydroxide nanoflowers enabling superior oxygen evolution performance
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2019-11-18 , DOI: 10.1039/c9qi01367a
Yan-Yan Dong _{1,

2,

3,

4,

5} , Dong-Dong Ma _{1,

2,

3,

4,

5} , Xin-Tao Wu _{1,

2,

3,

4,

5} , Qi-Long Zhu _{1,

2,

3,

4,

5}

Affiliation

Developing earth-abundant, highly active, and durable electrocatalysts for the oxygen evolution reaction (OER) is of crucial importance for renewable energy conversion processes. Herein, we fabricated novel flower-like NiFe-layered double hydroxide nanostructures with electron-withdrawing anion intercalation and surface sulfurization via a two-step hydrothermal treatment. Benefiting from the dual-modified electronic structure of the surface active sites of NiFe-LDHs, the as-obtained catalyst showed excellent electrocatalytic activity for the OER, only demanding a low overpotential of 259 mV to achieve 10 mA cm⁻² in 1.0 M KOH.

中文翻译：

NiFe层状双氢氧化物纳米花的吸电子阴离子嵌入和表面硫化，可实现优异的氧气释放性能

开发用于氧气释放反应（OER）的富含地球，高活性和耐用的电催化剂对于可再生能源转化过程至关重要。在这里，我们通过两步水热处理，制备了具有吸电子阴离子嵌入和表面硫化的新型花状NiFe层状双氢氧化物纳米结构。得益于NiFe-LDHs表面活性位的双重修饰电子结构，所获得的催化剂对OER表现出出色的电催化活性，仅需259 mV的低超电势即可在1.0 M KOH中达到10 mA cm ^-2。。

更新日期：2019-11-18

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