Rational recipe for bulk growth of graphene/carbon nanotube hybrids: New insights from in-situ characterization on working catalysts

被引：16

作者：

Chen, Tian-Chi ^{[1
]}

Zhang, Qiang ^{[1
]}

Zhao, Meng-Qiang ^{[1
]}

Huang, Jia-Qi ^{[1
]}

Tang, Cheng ^{[1
]}

Wei, Fei ^{[1
]}

机构：

[1] Tsinghua Univ, Beijing Key Lab Green Chem React Engn & Technol, Dept Chem Engn, Beijing 100084, Peoples R China

来源：

CARBON | 2015年 / 95卷

关键词：

CHEMICAL-VAPOR-DEPOSITION; CARBON NANOTUBE/GRAPHENE SANDWICHES; LITHIUM-SULFUR BATTERIES; LAYERED DOUBLE HYDROXIDE; FLUIDIZED-BED; ENERGY-STORAGE; MASS-PRODUCTION; ION BATTERIES; SUPERCAPACITORS; ARCHITECTURES;

D O I：

10.1016/j.carbon.2015.08.044

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：

The graphene/carbon nanotube (CNT) hybrids are considered as one of the most advanced nanostructures with intrinsically self-dispersion properties for large-volume applications. However, owing to the limited understanding on the complex growth mechanism and non-linear kinetics, rational design of growth procedures and related multiphase reactors for the production of the hybrids remain great challenges. In this contribution, the in-situ monitoring of graphene/CNT hybrid synthesis on layered double oxide bifunctional catalysts was carried out in an online thermogravimetric reactor. The rapid growth of CNTs occurred at the initial 90 s and the slow deposition of graphene was throughout the whole process, becoming the dominant reaction in the second stage. Based on this unique growth behavior, a two-stage growth strategy was proposed to improve the quality of hybrid products. The deposition of amorphous carbon byproduct was significantly suppressed and the quality of the hybrids was significantly enhanced through the two-stage growth process. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：292 / 301

页数：10

共 61 条

[1] In situ transmission electron microscope tensile testing reveals structure-property relationships in carbon nanofibers [J].

Beese, Allison M. ;

Papkov, Dimitry ;

Li, Shuyou ;

Dzenis, Yuris ;

Espinosa, Horacio D. .

CARBON, 2013, 60 :246-253

[2] Electrodeposition of transparent and conducting graphene/carbon nanotube thin films [J].

Bon, S. Bittolo ;

Valentini, L. ;

Kenny, J. M. ;

Peponi, L. ;

Verdejo, R. ;

Lopez-Manchado, M. A. .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2010, 207 (11) :2461-2466

[3] Thin films of carbon nanotubes and chemically reduced graphenes for electrochemical micro-capacitors [J].

Byon, Hye Ryung ;

Lee, Seung Woo ;

Chen, Shuo ;

Hammond, Paula T. ;

Shao-Horn, Yang .

CARBON, 2011, 49 (02) :457-467

[4] Highly conductive carbon-nanotube/graphite-oxide hybrid films [J].

Cai, Dongyu ;

Song, Mo ;

Xu, Chenxi .

ADVANCED MATERIALS, 2008, 20 (09) :1706-+

[5] Carbon nanotubes grown in situ on graphene nanosheets as superior anodes for Li-ion batteries [J].

Chen, Shuangqiang ;

Chen, Peng ;

Wang, Yong .

NANOSCALE, 2011, 3 (10) :4323-4329

[6] In Situ Monitoring the Role of Working Metal Catalyst Nanoparticles for Ultrahigh Purity Single-Walled Carbon Nanotubes [J].

Chen, Tian-Chi ;

Zhao, Meng-Qiang ;

Zhang, Qiang ;

Tian, Gui-Li ;

Huang, Jia-Qi ;

Wei, Fei .

ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (40) :5066-5073

[7] Over 99.6 wt%-pure, sub-millimeter-long carbon nanotubes realized by fluidized-bed with careful control of the catalyst and carbon feeds [J].

Chen, Zhongming ;

Kim, Dong Young ;

Hasegawa, Kei ;

Osawa, Toshio ;

Noda, Suguru .

CARBON, 2014, 80 :339-350

[8] Methane decomposition on Ni-Cu alloyed Raney-type catalysts [J].

Cunha, A. F. ;

Orfao, J. J. M. ;

Figueiredo, J. L. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2009, 34 (11) :4763-4772

[9] Fluidized bed catalytic chemical vapor deposition synthesis of carbon nanotubes-A review [J].

Danafar, Firoozeh ;

Fakhru'l-Razi, A. ;

Salleh, Mohd Amran Mohd ;

Biak, Dayang Radiah Awang .

CHEMICAL ENGINEERING JOURNAL, 2009, 155 (1-2) :37-48

[10] Carbon Nanotubes: Present and Future Commercial Applications [J].

De Volder, Michael F. L. ;

Tawfick, Sameh H. ;

Baughman, Ray H. ;

Hart, A. John .

SCIENCE, 2013, 339 (6119) :535-539

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