Selective Ionic Transport Pathways in Phosphorene

被引：89

作者：

Nie, Anmin ^{[1
]}

Cheng, Yingchun ^{[1
,2
,3
]}

Ning, Shoucong ^{[6
]}

Foroozan, Tara ^{[4
]}

Yasaei, Poya ^{[1
]}

Li, Wen ^{[5
]}

Song, Boao ^{[1
]}

Yuan, Yifei ^{[1
]}

Chen, Lin ^{[7
]}

Salehi-Khojin, Amin ^{[1
]}

Mashayek, Farzad ^{[1
]}

Shahbazian-Yassar, Reza ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech & Ind Engn, Chicago, IL 60607 USA

[2] Nanjing Tech Univ, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China

[3] Nanjing Tech Univ, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Inst Adv Mat, 30 South Puzhu Rd, Nanjing 211816, Jiangsu, Peoples R China

[4] Univ Illinois, Dept Civil & Mat Engn, Chicago, IL 60607 USA

[5] IIT, Dept Biol & Chem Sci, Chicago, IL 60616 USA

[6] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Hong Kong, Peoples R China

[7] Argonne Natl Lab, Div Energy Syst, Lemont, IL 60439 USA

来源：

NANO LETTERS | 2016年 / 16卷 / 04期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Phosphorene; ionic transport; edge effect; rechargeable ion battery; in situ electron microscopy; PROMISING ANODE MATERIALS; LAYER BLACK PHOSPHORUS; ELECTRODE MATERIALS; ENERGY-STORAGE; LI STORAGE; BATTERIES; LITHIUM; GRAPHENE; MONOLAYER; CHALLENGES;

D O I：

10.1021/acs.nanolett.5b04514

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Despite many theoretical predictions indicating exceptionally low energy barriers of ionic transport in phosphorene, the ionic transport pathways in this two-dimensional (2D) material has not been experimentally demonstrated. Here, using in situ aberration-corrected transmission electron microscopy (TEM) and density functional theory, we studied sodium ion transport in phosphorene. Our high-resolution TEM imaging complemented by electron energy loss spectroscopy demonstrates a precise description of anisotropic sodium ions migration along the [100] direction in phosphorene. This work also provides new insight into the effect of surface and the edge sites on the transport properties of phosphorene. According to our observation, the sodium ion transport is preferred in zigzag edge rather than the armchair edge. The use of this highly selective ionic transport property may endow phosphorene with new functionalities for novel chemical device applications.

引用

页码：2240 / 2247

页数：8

共 52 条

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