Self-Organized Growth of Two-Dimensional GaTe Nanosheet on ZnO Nanowires for Heterojunctional Water Splitting Applications,ACS Applied Materials & Interfaces

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Self-Organized Growth of Two-Dimensional GaTe Nanosheet on ZnO Nanowires for Heterojunctional Water Splitting Applications
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-05-19 00:00:00 , DOI: 10.1021/acsami.7b04199
Qiuguo Li _{1,

2} , Xinzhou Ma _{2,

3} , Huiqiang Liu _{1,

2} , Zuxin Chen _{1,

2} , Hao Chen _{1,

2} , Sheng Chu _{2,

3}

Affiliation

Epitaxial two-dimensional GaTe nanosheets on ZnO nanowires were routinely prepared via a two-step chemical vapor deposition procedure. The epitaxial relationship and growth mechanism of the GaTe/ZnO core/shell structures were explored and attributed to a layer-overlayer model. The hybrid structures increased the surface area and the favorable p-n heterojunction enhanced the charge separation for photoelectrochemical performance in water splitting. The above synergistic effects boosted the photocurrent density from −0.3 mA cm^–2 for the pristine ZnO nanowires to −2.5 mA cm^–2 for the core/shell GaTe/ZnO nanowires at −0.39 V vs RHE under the visible light irradiation. This highlights the promise for utilization of GaTe nanosheet/ZnO nanowires as efficient photoelectrocatalyst for water splitting.

中文翻译：

ZnO纳米线上用于异质结水分解应用的二维GaTe纳米片的自组织生长

ZnO纳米线上的外延二维GaTe纳米片是通过两步化学气相沉积程序常规制备的。探索了GaTe / ZnO核/壳结构的外延关系和生长机理，并将其归因于层-层模型。杂化结构增加了表面积，有利的pn异质结增强了水分离中光电化学性能的电荷分离。上述协同效应将光电流密度从原始ZnO纳米线的-0.3 mA cm ^-2提升到了-2.5 mA cm ^-2-0.39 V vs RHE的核/壳GaTe / ZnO纳米线在可见光辐射下的光通量。这突显了将GaTe纳米片/ ZnO纳米线用作水分解的有效光电催化剂的前景。

更新日期：2017-05-31

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