IrOx@In2O3 Heterojunction from Individually Crystallized Oxides for Weak-Light-Promoted Electrocatalytic Water Oxidation,Angewandte Chemie International Edition

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IrOx@In2O3 Heterojunction from Individually Crystallized Oxides for Weak-Light-Promoted Electrocatalytic Water Oxidation
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-09-30 , DOI: 10.1002/anie.202112042
Yumei Yang ₁ , Yujin Ji ₂ , Guangyu Li ₁ , Youyong Li ₂ , Baohua Jia ₃ , Junqing Yan ₁ , Tianyi Ma ₄ , Shengzhong (Frank) Liu ₁

Affiliation

During heterogeneous nucleation for the formation of the IrO_x@In₂O₃ heterojunction, IrO_x and In₂O₃ are observed to crystallize independently. This crystallization avoids Ir loss and ensures that all Ir-based sites are fully exposed. More importantly, surface-exposed nano-sized IrO_x can be 100 % activated by weak-light (1.8 mW cm⁻²) irradiation, which can enhance the oxygen evolution reaction (OER). This work focuses on the importance of multi-field coupling for promoting OER performance.

中文翻译：

来自单独结晶氧化物的 IrOx@In2O3 异质结用于弱光促进电催化水氧化

在形成 IrO _x @In ₂ O ₃异质结的异相成核过程中，观察到IrO _x和 In ₂ O ₃独立结晶。这种结晶避免了 Ir 损失并确保所有基于 Ir 的位点都完全暴露。更重要的是，表面暴露的纳米级 IrO _x可以通过弱光 (1.8 mW cm ^-2 ) 照射100% 激活，这可以增强析氧反应 (OER)。这项工作的重点是多场耦合对提高 OER 性能的重要性。

更新日期：2021-12-06

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