Stabilizing black phosphorus nanosheets via edge-selective bonding of sacrificial C60 molecules

被引：200

作者：

Zhu, Xianjun ^{[1
]}

Zhang, Taiming ^{[2
]}

Jiang, Daochuan ^{[2
]}

Duan, Hengli ^{[3
]}

Sun, Zijun ^{[2
]}

Zhang, Mengmeng ^{[1
]}

Jin, Hongchang ^{[2
]}

Guan, Runnan ^{[1
]}

Liu, Yajuan ^{[1
]}

Chen, Muqing ^{[1
]}

Ji, Hengxing ^{[2
]}

Du, Pingwu ^{[2
]}

Yan, Wensheng ^{[3
]}

Wei, Shiqiang ^{[3
]}

Lu, Yalin ^{[1
]}

Yang, Shangfeng ^{[1
]}

机构：

[1] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale,CAS Key Lab Ma, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, Dept Mat Sci & Engn, iChEM Collaborat Innovat Ctr Chem Energy Mat, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China

[3] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

基金：

中国国家自然科学基金;

关键词：

GRAPHENE NANOPLATELETS; ABSORPTION; HYBRID; FULLERENES; SCATTERING; SURFACE; ROUTE;

D O I：

10.1038/s41467-018-06437-1

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Few-layer black phosphorus (BP) with an anisotropic two-dimensional (2D)-layered structure shows potential applications in photoelectric conversion and photocatalysis, but is easily oxidized under ambient condition preferentially at its edge sites. Improving the ambient stability of BP nanosheets has been fulfilled by chemical functionalization, however this functionalization is typically non-selective. Here we show that edge-selective functionalization of BP nanosheets by covalently bonding stable C-60 molecules leads to its significant stability improvement. Owing to the high stability of the hydrophobic C-60 molecule, C-60 functions as a sacrificial shield and effectively protects BP nanosheets from oxidation under ambient condition. C-60 bonding leads to a rapid photoinduced electron transfer from BP to C-60, affording enhanced photoelectrochemical and photocatalytic activities. The selective passivation of the reactive edge sites of BP nanosheets by sacrificial C-60 molecules paves the way toward ambient processing and applications of BP.

引用

页数：9

共 50 条

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[Anonymous], 2D MAT

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