Engineering oxygen vacancies on dendrite-like IrO2 for the oxygen evolution reaction in acidic solution,Sustainable Energy & Fuels

当前位置： X-MOL 学术 › Sustain. Energy Fuels › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Engineering oxygen vacancies on dendrite-like IrO2 for the oxygen evolution reaction in acidic solution
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-02-27 , DOI: 10.1039/d0se00007h
Chao Cai _{1,

2,

3,

4} , Shaobo Han _{1,

2,

3,

4} , Yongliang Tang _{1,

2,

3,

4}

Affiliation

Here we report IrO₂ with dendrite-like nanostructures (DLNs) as a catalyst for the oxygen evolution reaction (OER) in acidic solution. The IrO₂ DLNs are prepared by the molten salt method and have self-standing three dimensional structures. IrO₂ with DLNs has a high mass activity determined to be 19-fold that of commercial IrO₂. Combining a wide array of ex situ characterization methods, we demonstrate that the sublayer Ir cations and lattice O participate in the OER. The Ir corrosion and O/OH⁻ adsorption during the OER can lead to IrO₂ surface reconstruction, from a compressed one to a stretched one.

中文翻译：

枝晶状IrO2上的工程氧空位，用于酸性溶液中的氧释放反应

在这里，我们报告具有枝状纳米结构（DLNs）的IrO ₂作为酸性溶液中氧释放反应（OER）的催化剂。IrO ₂ DLN通过熔融盐法制备，具有自立的三维结构。具有DLN的IrO ₂具有很高的质量活性，被确定为商业IrO _2的19倍。结合各种各样的异位表征方法，我们证明亚层Ir阳离子和晶格O参与OER。红外腐蚀和O / OH ^-的OER期间吸附能导致的IrO ₂表面重建，从压缩一至拉伸之一。

更新日期：2020-02-27

点击分享查看原文

点击收藏

阅读更多本刊新发论文