The Formation of Carbon Nanostructures via Catalytic Pyrolysis of Naphthalene under Its Autogenic Pressure

The formation of carbon nanotubes (CNTs), spherical carbon nanocapsules (CNCs), and carbon spheres (CSs) is accomplished by using the method of reactions under autogenic pressure at elevated temperatures (RAPET). A powder mixture of naphthalene and nickel acetate tetrahydrate is dissociated under its autogenic pressure. The resultant CNTs and CNCs exhibit good graphitic quality, and the diameters range from 50~200 nm. Smooth and monodisperse CSs with the diameter ranging from 5~10 μm can be obtained by pyrolysis of pure naphthalene. Our results show that the reaction temperature and catalyst proportion play a key role in the formation of carbon nanostructures with RAPET method.

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Synthesis of Nickel-Encapsulated Carbon Nanocapsules and Cup-Stacked-Type Carbon Nanotubes via Nickel-Doped Fullerene Nanowhiskers

Journal of Nanotechnology ◽

10.1155/2012/376160 ◽

2012 ◽

Vol 2012 ◽

pp. 1-5

Author(s):

Tokushi Kizuka ◽

Kun'ichi Miyazawa ◽

Akira Akagawa

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanostructures ◽

Heating Temperature ◽

Toluene Solution ◽

Precipitation Method ◽

Nitrate Hexahydrate ◽

Ni Nanoparticles ◽

One Dimensional ◽

Carbon Nanocapsules

Nickel- (Ni) doped C60nanowhiskers (NWs) were synthesized by a liquid-liquid interfacial precipitation method using a C60-saturated toluene solution and isopropanol with Ni nitrate hexahydrate Ni(NO3)2·6H2O. By varying the heating temperature of Ni-doped C60NWs, two types of one-dimensional carbon nanostructures were produced. By heating the NWs at 973 and 1173 K, carbon nanocapsules (CNCs) that encapsulated Ni nanoparticles were produced. The Ni-encapsulated CNCs joined one dimensionally to form chain structures. Upon heating the NWs to 1373 K, cup-stacked-type carbon nanotubes were synthesized.

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Room-temperature synthesis of various allotropes of carbon nanostructures (graphene, graphene polyhedra, carbon nanotubes and nano-onions, n-diamond nanocrystals) with aid of ultrasonic shock using ethanol and potassium hydroxide

Carbon ◽

10.1016/j.carbon.2021.04.038 ◽

2021 ◽

Vol 179 ◽

pp. 133-141

Author(s):

Dejian Dai ◽

Yuanyuan Li ◽

Jiyang Fan

Keyword(s):

Carbon Nanotubes ◽

Potassium Hydroxide ◽

Carbon Nanostructures ◽

Room Temperature ◽

Temperature Synthesis ◽

Room Temperature Synthesis

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Non-cytotoxic carbon nanocapsules synthesized via one-pot filling and end-closing of multi-walled carbon nanotubes

Carbon ◽

10.1016/j.carbon.2018.10.006 ◽

2019 ◽

Vol 141 ◽

pp. 782-793 ◽

Cited By ~ 6

Author(s):

Markus Martincic ◽

Sandra Vranic ◽

Elzbieta Pach ◽

Stefania Sandoval ◽

Belén Ballesteros ◽

...

Keyword(s):

Carbon Nanotubes ◽

One Pot ◽

Multi Walled Carbon Nanotubes ◽

Carbon Nanocapsules ◽

Walled Carbon Nanotubes

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The growth of carbon nanostructures in the channels of aligned carbon nanotubes

Carbon ◽

10.1016/j.carbon.2005.12.038 ◽

2006 ◽

Vol 44 (7) ◽

pp. 1310-1313 ◽

Cited By ~ 6

Author(s):

Xiaowei Zhao ◽

Peng Jiang ◽

Weiguo Chu ◽

Shicheng Mu ◽

Dongfang Liu ◽

...

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanostructures ◽

Aligned Carbon Nanotubes

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Filling of carbon nanotubes and nanofibres

Beilstein Journal of Nanotechnology ◽

10.3762/bjnano.6.53 ◽

2015 ◽

Vol 6 ◽

pp. 508-516 ◽

Cited By ~ 14

Author(s):

Reece D Gately ◽

Marc in het Panhuis

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanostructures ◽

Biomedical Applications ◽

Unique Structure ◽

New Development

The reliable production of carbon nanotubes and nanofibres is a relatively new development, and due to their unique structure, there has been much interest in filling their hollow interiors. In this review, we provide an overview of the most common approaches for filling these carbon nanostructures. We highlight that filled carbon nanostructures are an emerging material for biomedical applications.

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Synthesis of Carbon Nanotubes and Carbon Spheres and Study of their Hydrogen Storage Property by Electrochemical Method

Procedia Materials Science ◽

10.1016/j.mspro.2014.07.397 ◽

2014 ◽

Vol 5 ◽

pp. 1056-1065 ◽

Cited By ~ 11

Author(s):

G. Krishnamurthy ◽

R. Namitha ◽

Sarika Agarwal

Keyword(s):

Carbon Nanotubes ◽

Hydrogen Storage ◽

Electrochemical Method ◽

Carbon Spheres ◽

Synthesis Of Carbon Nanotubes ◽

Storage Property ◽

Hydrogen Storage Property

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Pressure Isotherms of Hydrogen Adsorption in Carbon Nanostructures

MRS Proceedings ◽

10.1557/proc-706-z9.11.1 ◽

2001 ◽

Vol 706 ◽

Cited By ~ 2

Author(s):

Xiaohong Chen ◽

Urszula Dettlaff-Weglikowska ◽

Miroslav Haluska ◽

Martin Hulman ◽

Siegmar Roth ◽

...

Keyword(s):

Carbon Nanotubes ◽

Activated Carbon ◽

Hydrogen Storage ◽

Carbon Nanostructures ◽

Room Temperature ◽

Storage Capacity ◽

Hydrogen Adsorption ◽

Single Wall Carbon Nanotubes ◽

Hydrogen Storage Capacity ◽

Carbon And Graphite

AbstractThe hydrogen adsorption capacity of various carbon nanostructures including single-wall carbon nanotubes, graphitic nanofibers, activated carbon, and graphite has been measured as a function of pressure and temperature. Our results show that at room temperature and a pressure of 80 bar the hydrogen storage capacity is less than 1 wt.% for all samples. Upon cooling, the capacity of hydrogen adsorption increases with decreasing temperature and the highest value was observed to be 2.9 wt. % at 50 bar and 77 K. The correlation between hydrogen storage capacity and specific surface area is discussed.

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