4.7 Article

Multidimensional Perovskite for Visible Light Driven Hydrogen Production in Aqueous HI Solution

期刊

ACS APPLIED ENERGY MATERIALS
卷 5, 期 1, 页码 207-213

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c02751

关键词

perovskite; photocatalysis test; hydrogen generation; stability; multidimensional

资金

  1. Hong Kong Research Grants Council [HKBU 12304320]
  2. Basic and Applied Basic Research Foundation of Guangdong Province [2019B1515120083]
  3. Peacock Team Project - Shenzhen Science and Technology Innovation Committee [KQTD2015033110182370]
  4. Shenzhen Engineering R&D Center for Flexible Solar Cells Project - Shenzhen Development and Reform Committee [2019-126]

向作者/读者索取更多资源

A simple and efficient method was applied to prepare multidimensional perovskite with enhanced performance, demonstrating higher charge transfer ability and improved photocatalytic efficiency compared to traditional 3D and 2D perovskite materials.
A simple and efficient method is applied for the preparation of methylammonium lead iodide perovskite (MAPbI(3)), which is defined as a threedimensional (3D) perovskite, and octadecylammonium lead iodide perovskite (OA(2)PbI(4)), which is defined as a 2D perovskite; meanwhile, multidimensional perovskite (MDP) is based on the two materials mentioned above with a general formula OA(x)MA(1-x)PbI(3) in which x represents the different content of the relative component. It is demonstrated that MDP has a higher charge transfer ability than traditional 3D perovskite and enhanced performance compared to that of 2D perovskite. Finally, it is found that the MDP material can balance good charge transfer and efficient electron-hole separation ability from 2D perovskite and a full visible range absorption ability comes from 3D perovskite. The prepared OA(0.15)MA(0.85)PbI(3) is studied in visible light driven photocatalytic H-2 evolution in aqueous HI solution, resulting in a continuous PHE in 24 h with a rate of 535.9 mu mol g(-1) h(-1), which is much higher than the pristine MAPbI(3) with a rate of 276.1 mu mol g(-1) h(-1). Moreover, the quantum efficiency of PHE was determined to be 1.67% for OA(0.15)MA(0.85)PbI(3) under the irradiation at 420 nm.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据