Vertically aligned 2D carbon doped boron nitride nanofilms for photoelectrochemical water oxidation,Journal of Materials Chemistry A

当前位置： X-MOL 学术 › J. Mater. Chem. A › 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.)

Vertically aligned 2D carbon doped boron nitride nanofilms for photoelectrochemical water oxidation
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-06-18 , DOI: 10.1039/d0ta04593d
Yuanxing Fang _{1,

2,

3,

4,

5} , Ivan S. Merenkov _{6,

7,

8,

9,

10} , Xiaochun Li _{1,

2,

3,

4,

5} , Junkang Xu _{1,

2,

3,

4,

5} , Sen Lin _{1,

2,

3,

4,

5} , Marina L. Kosinova _{9,

10,

11} , Xinchen Wang _{1,

2,

3,

4,

5}

Affiliation

Metal-free photocatalysis has evoked broad research interest in green energy applications. Herein, two-dimensional (2D) carbon-doped BN (C-BN) nanosheets are vertically aligned on a conductive substrate by low-temperature plasma enhanced chemical vapor deposition (PE-CVD) and are demonstrated to be a photoelectrocatalytic device for water oxidation under sunlight irradiation. By virtue of this geometry, the unique 2D material presents advantages for the catalytic reaction. In addition, adjusting the carbon concentration can facilely control the structure and optoelectronic properties of the C-BN nanosheets to improve light harvesting in the solar spectrum. As a result, the photocurrent density exhibits a 60-fold enhancement over that of the C-BN films achieved by traditional deposition of C-BN powder. Experimental and theoretical studies of band structures are performed and the results are in agreement with each other. This 2D C-BN nanofilm based device could stimulate interest in advanced applications in many fields such as catalysis, sensors, transistors and others.

中文翻译：

垂直排列的二维碳掺杂氮化硼纳米薄膜用于光电化学水氧化

无金属光催化引起了绿色能源应用的广泛研究兴趣。本文中，二维（2D）碳掺杂BN（C-BN）纳米片通过低温等离子体增强化学气相沉积（PE-CVD）在导电基板上垂直排列，并被证明是用于水氧化的光电催化装置在阳光照射下。由于这种几何形状，独特的2D材料为催化反应提供了优势。另外，调节碳浓度可以容易地控制C-BN纳米片的结构和光电性质，以改善太阳光谱中的光收集。结果，光电流密度显示出比通过传统的C-BN粉末沉积获得的C-BN膜高60倍。对能带结构进行了实验和理论研究，结果相互一致。这种基于2D C-BN纳米膜的器件可能会激发人们对催化，传感器，晶体管等许多领域的高级应用的兴趣。

更新日期：2020-07-07

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11