Ultrathin Metal-Organic Framework Nanosheets with Ultrahigh Loading of Single Pt Atoms for Efficient Visible-Light-Driven Photocatalytic H2 Evolution

被引：460

作者：

Zuo, Quan ^{[1
]}

Liu, Tingting ^{[2
,3
]}

Chen, Chuanshuang ^{[1
]}

Ji, Yi ^{[1
]}

Gong, Xueqing ^{[2
,3
]}

Mai, Yiyong ^{[1
]}

Zhou, Yongfeng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, State Key Lab Met Matrix Composites, Shanghai Key Lab Elect Insulat & Thermal Ageing, 800 Dongchuan Rd, Shanghai 200240, Peoples R China

[2] East China Univ Sci & Technol, Key Lab Adv Mat, Ctr Computat Chem, Shanghai 200237, Peoples R China

[3] East China Univ Sci & Technol, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2019年 / 58卷 / 30期

基金：

中国国家自然科学基金;

关键词：

hydrogen evolution; metal-organic frameworks; photocatalysis; single-atom catalysts; two-dimensional materials; ACTIVE-SITES; QUANTUM DOTS; CATALYSTS; GRAPHENE; ELECTROCATALYSTS; PERFORMANCE; OXIDATION;

D O I：

10.1002/anie.201904058

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A surfactant-stabilized coordination strategy is used to make two-dimensional (2D) single-atom catalysts (SACs) with an ultrahigh Pt loading of 12.0 wt %, by assembly of pre-formed single Pt atom coordinated porphyrin precursors into free-standing metal-organic framework (MOF) nanosheets with an ultrathin thickness of 2.4 +/- 0.9 nm. This is the first example of 2D MOF-based SACs. Remarkably, the 2D SACs exhibit a record-high photocatalytic H-2 evolution rate of 11 320 mu mol g(-1) h(-1) via water splitting under visible light irradiation (lambda>420 nm) compared with those of reported MOF-based photocatalysts. Moreover, the MOF nanosheets can be readily drop-casted onto solid substrates, forming thin films while still retaining their photocatalytic activity, which is highly desirable for practical solar H-2 production.

引用

页码：10198 / 10203

页数：6

共 58 条

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