Topology and doping effects in three-dimensional nanoporous graphene

被引：45

作者：

Di Bernardo, Iolanda ^{[1
,2
,3
]}

Avvisati, Giulia ^{[1
]}

Chen, Chaoyu ^{[4
,5
]}

Avila, Jose ^{[4
,5
]}

Asensio, Maria Carmen ^{[4
,5
]}

Hu, Kailong ^{[6
]}

Ito, Yoshikazu ^{[6
,7
]}

Hines, Peter ^{[2
,3
]}

Lipton-Duffin, Josh ^{[2
,3
]}

Rintoul, Llew ^{[2
,3
]}

Motta, Nunzio ^{[2
,3
]}

Mariani, Carlo ^{[1
]}

Betti, Maria Grazia ^{[1
]}

机构：

[1] Sapienza Univ, Dept Phys, Rome, Italy

[2] Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld, Australia

[3] Queensland Univ Technol, Inst Future Environm, Brisbane, Qld, Australia

[4] Synchrotron SOLEIL, Gif Sur Yvette, France

[5] Univ Paris Saclay, Gif Sur Yvette, France

[6] Univ Tsukuba, Grad Sch Pure & Appl Sci, Inst Appl Phys, Tsukuba, Ibaraki, Japan

[7] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama, Japan

来源：

CARBON | 2018年 / 131卷

关键词：

OXYGEN REDUCTION REACTION; NITROGEN-DOPED GRAPHENE; CARBON NANOTUBES; ELECTRONIC-PROPERTIES; EPITAXIAL GRAPHENE; AMORPHOUS-CARBON; POROUS GRAPHENE; DIRAC FERMIONS; RAMAN-SPECTRA; FILMS;

D O I：

10.1016/j.carbon.2018.01.076

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report on a spatial mapping of the electronic and vibrational structure of three-dimensional (3D) nanoporous graphene architectures, which have a hierarchical pore structure. We demonstrate that the topology, curvature, and pores lead to local changes in the electronic and vibrational structure and in the hybridization states of the carbon atoms (sp(2) vs. sp(3)-like). Nitrogen substitutions in pyrrolic bonding configurations also contribute to local distortions of the planar geometry of graphene. The distortions influence the electronic density of states at the Fermi level by shifting the Dirac cone apex, opening potential avenues for applications of two-dimensional graphene in 3D devices. (c) 2018 Published by Elsevier Ltd.

引用

页码：258 / 265

页数：8

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