Solid‐State Synthesis of “Bamboo‐Like” and Straight Carbon Nanotubes by Thermolysis of Hexa‐<i>peri</i>‐hexabenzocoronene–Cobalt Complexes

Wu, Jishan; Hamaoui, Bassem El; Li, Jixue; Zhi, Linjie; Kolb, Ute; Müllen, Kläus

doi:10.1002/smll.200400049

Cited by 60 publications

(44 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[376][377][378][379] The pyrolysis of an HBC-cobalt complex 141 in the solidstate produces carbon nanotubes ( Figure 13). [380] Nearly quantitative yields of either "bamboo-shaped" or straight nanotubes are obtained. The shape and yield of the carbon nanostructures can be finely controlled by regulation of the heating process.…”

Section: From Discotic Mesophases To Carbon Nano-and Microstructuresmentioning

confidence: 98%

The Chemistry of Organic Nanomaterials

2005

Self Cite

View full text Add to dashboard Cite

The development of nanotechnology using organic materials is one of the most intellectually and commercially exciting stories of our times. Advances in synthetic chemistry and in methods for the investigation and manipulation of individual molecules and small ensembles of molecules have produced major advances in the field of organic nanomaterials. The new insights into the optical and electronic properties of molecules obtained by means of single-molecule spectroscopy and scanning probe microscopy have spurred chemists to conceive and make novel molecular and supramolecular designs. Methods have also been sought to exploit the properties of these materials in optoelectronic devices, and prototypes and models for new nanoscale devices have been demonstrated. This Review aims to show how the interaction between synthetic chemistry and spectroscopy has driven the field of organic nanomaterials forward towards the ultimate goal of new technology.

show abstract

Section: From Discotic Mesophases To Carbon Nano-and Microstructuresmentioning

confidence: 98%

The Chemistry of Organic Nanomaterials

2005

Self Cite

View full text Add to dashboard Cite

show abstract

“…[11,12] The CNTs have a uniform size with an inner diameter of ca. 14 nm and an outer diameter of ca.…”

Section: Full Papermentioning

confidence: 99%

“…1) resulted in bamboo-structured CNTs, which we believe, could be partially due to the presence of the disclike graphene core of 2. [11] Thermolysis of Fe-phthalocyanine in the bulk led to straight CNTs with cablelike structures consisting of an iron carbide core surrounded by a graphitic shell; and when Co-phthalocyanine was chosen as the precursor, highly kinked CNTs were obtained after pyrolysis. [12] The SSP of dendronized precursor 3 yielded uniform carbon-Co nanorods with unique rectangular cross sections, [13] whereas thermolysis of 4 gave uniform spherical nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Solid‐State Pyrolysis of Polyphenylene–Metal Complexes: A Facile Approach Toward Carbon Nanoparticles

Hamaoui

Zhi

et al. 2007

Adv Funct Materials

View full text Add to dashboard Cite

Novel polyphenylene–metal complexes with discotic, linear, and dendritic geometries are synthesized by using a facile approach consisting of reactions between Co2(CO)8 and ethynyl functionalities in dichloromethane. Various carbon nanoparticles (CNPs), including graphitic carbon nanotubes (CNTs), graphitic carbon rods, and carbon–metal hybrid particles are obtained from the solid‐state pyrolysis of these complexes. The ultimate structures of the CNPs are found to be dependant on the structure and composition of the starting compounds. Precursors containing graphenes always result in graphitic CNTs in high yield, whereas dendritic precursors give rodlike carbon materials. Alternatively, linear oligo(arylethylene) precursors afford mostly carbon–metal hybrids with large amounts of amorphous carbon. Furthermore, the CNP structures could be controlled by adjusting the carbon/metal ratio, the type and position of the metal incorporated into the precursor, and the mode of pyrolysis. These results provide further chances toward understanding the mechanism of CNP formation.

show abstract

“…Wurde die Pyrolyse über einen längeren Zeitraum bei 600 8C durchgeführt, führte dies zur Bildung von Kohlenstoff-Nanoröhren. [190] In einer umfangreichen Studie synthetisierten Müllen und Mitarbeiter eine Vielzahl von Übergangsmetall-komplexen kohlenstoffreicher Vorstufenmoleküle -wie HBC-Derivaten, Hexaphenylbenzolderivaten, Thiophenderivaten, großen PAKs und auch linearen oder sternförmigen Oligo(phenylenethinylenen) -und variierten bei der entsprechenden Pyrolyse die Temperatur. [191] Alle mit Cobalt komplexierten PAKs bildeten unter den Pyrolysebedingungen mehrwandige CNTs, wobei sich die Ausbeute über den Cobalt-Gehalt steuern ließ.…”

Section: Selbstorganisation Von Polycyclischen Aromatischen Kohlenwasunclassified

Nanostrukturierte Kohlenstoffmaterialien aus molekularen Vorstufen

et al. 2010

View full text Add to dashboard Cite

Nanostrukturierte Kohlenstoffmaterialien, also Kohlenstoffe, die eine charakteristische Größe im Nanometerbereich sowie eine eventuell funktionalisierte Oberfläche aufweisen, spielen eine zentrale Rolle in vielen wissenschaftlichen Disziplinen. Erste Anwendungen finden derartige Materialien dabei unter anderem in Bereichen wie der Erforschung alternativer Energiequellen, leistungsfähiger Energiespeichermaterialien, nachhaltiger chemischer Technologien oder auch im Gebiet der organisch‐elektronischen Materialien. Des Weiteren könnten diese Materialien mögliche Ansätze und Lösungen bieten, um dem voranschreitenden Verbrauch fossiler Brennstoffe und somit dem Klimawandel entgegenzusteuern. Ferner könnten nanostrukturierte Kohlenstoffmaterialien auch auf dem Gebiet der Mikroelektronik einen Durchbruch herbeiführen. Allerdings ist die Entwicklung neuer Herstellungsverfahren für kohlenstoffreiche Materialien unabdingbar, die unter anderem Kontrolle über die Oberflächenchemie, die mesoskopische Struktur und die Mikrostruktur ermöglichen. Ein vielversprechender Ansatz ist dabei die Synthese dieser Materialien aus wohldefinierten molekularen Vorstufen.

show abstract

Solid‐State Synthesis of “Bamboo‐Like” and Straight Carbon Nanotubes by Thermolysis of Hexa‐peri‐hexabenzocoronene–Cobalt Complexes

Cited by 60 publications

References 36 publications

The Chemistry of Organic Nanomaterials

The Chemistry of Organic Nanomaterials

Solid‐State Pyrolysis of Polyphenylene–Metal Complexes: A Facile Approach Toward Carbon Nanoparticles

Nanostrukturierte Kohlenstoffmaterialien aus molekularen Vorstufen

Contact Info

Product

Resources

About