Perovskite Microcrystals with Intercalated Monolayer MoS2 Nanosheets as Advanced Photocatalyst for Solar-Powered Hydrogen Generation

被引：115

作者：

Zhao, Xiaole ^{[1
,2
]}

Chen, Shan ^{[1
]}

Yin, Huajie ^{[1
]}

Jiang, Shuaiyu ^{[1
]}

Zhao, Kun ^{[1
]}

Kang, Jian ^{[1
]}

Liu, Peng Fei ^{[4
]}

Jiang, Lixue ^{[1
]}

Zhu, Zhengju ^{[1
]}

Cui, Dandan ^{[5
,6
]}

Liu, Porun ^{[1
]}

Han, Xiaojun ^{[2
]}

Yang, Hua Gui ^{[4
]}

Zhao, Huijun ^{[1
,3
]}

机构：

[1] Griffith Univ, Ctr Clean Environm & Energy, Southport, Qld 4222, Australia

[2] Harbin Inst Technol, Sch Chem & Chem Engn, State Key Lab Urban Water Resource & Environm, 92 West Da Zhi St, Harbin 150001, Peoples R China

[3] Chinese Acad Sci, Inst Solid State Phys, Ctr Environm & Energy Nanomat, CAS Ctr Excellence Nanosci, Hefei 230031, Peoples R China

[4] East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

[5] Beihang Univ, Sch Phys, Beijing 100191, Peoples R China

[6] Beihang Univ, BUAA UOW Joint Res Ctr, Beijing 100191, Peoples R China

来源：

MATTER | 2020年 / 3卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

H-2; EVOLUTION; CHARGE SEPARATION; EFFICIENT; NANOCRYSTALS; MAPBI(3);

D O I：

10.1016/j.matt.2020.07.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Photocatalytic water splitting holds a key to realizing the hydrogen economy but faces a grand challenge, namely, the severe charge recombination causes low solar-to-hydrogen (STH) efficiency. This work reports a new form of MAPbI(3) microcrystal (MAPbI(3)-MC)/monolayer MoS2 nanosheets (ML-MoS2) composite photocatalyst with type II heterojunction to effectively suppress the charge recombination for efficient photocatalytic hydrogen generation via HI splitting. The ML-MoS2/MAPbI(3)-MC is made of a large-sized MAPbI(3)-MC light harvester anchored with electrocatalytically active ML-MoS2 nanosheets to form a type II heterojunction that possesses a strong built-in electric field aligned between the spatially well-defined MAPbI(3)-MC andML-MoS2 nanosheets to empower the photocatalyst with superior capability to effectively promote the charge separation. The ML-MoS2/MAPbI(3)-MC brings the hydrogen generation performance of the perovskite-based photocatalysts to a new horizon with a champion STH efficiency of 1.09% and a record hydrogen generation activity of 13.6 mmol g(-1) h(-1) under visible light.

引用

页码：935 / 949

页数：15

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