Stabilizing Black Phosphorus via Covalent Functionalization of Solvent Formamide

被引：6

作者：

He, Zuoliang ^{[1
,2
]}

Liu, Rui ^{[1
]}

Shan, Wanyu ^{[1
,2
]}

Zhao, Huachao ^{[1
,2
]}

Lai, Yujian ^{[1
,3
]}

Li, Peng ^{[1
,2
]}

Liu, Jingfu ^{[1
,2
,3
]}

机构：

[1] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China

[2] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China

[3] Univ Chinese Acad Sci, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 310024, Peoples R China

来源：

ADVANCED MATERIALS INTERFACES | 2021年 / 8卷 / 11期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

black phosphorus; covalent functionalization; formamide; stability enhancement;

D O I：

10.1002/admi.202002247

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Black phosphorus (BP) has been attracting increasing scientific and technological interest for its excellent materials properties, but suffers from the intrinsic easy oxidization due to the high reactivity of lone-pair electrons in each phosphorus atom. Herein, solvent formamide (FM) is proposed for the covalent modification of BP by a one-step ultrasonication without any additive. FM is demonstrated to functionalize BP by the formation of single covalent bond P-N, thus occupying the active lone-pair electrons of P atoms and leading to the significant enhancement of the antioxidative capacity of BP. Density functional theory calculations also rationalize the formation of stable P-N bond and its contribution to the high solvent-exfoliated efficiency during the exfoliation of BP. The plausible reaction mechanism of FM with BP and the final 5-membered ring structure of products are also proposed to explain the formation process of the stable P-N bonds.

引用

页数：8

共 35 条

[1] Recent Progress on Stability and Passivation of Black Phosphorus [J].