Large-scale synthesis of high-purity well-aligned carbon nanotubes using pyrolysis of iron(II) phthalocyanine and acetylene

Liu, B.C.; Lee, T.J.; Lee, S.H.; Park, C.Y.; Lee, C.J.

doi:10.1016/s0009-2614(03)01092-3

Cited by 38 publications

(18 citation statements)

References 22 publications

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“…Their intriguing properties have attracted much attention after the discovery that Co-Pc might replace platinum as an electrocatalyst in the ORR [6,7]; in extensive follow-up studies [8][9][10][11][12][13][14][15][16][17][18][19][20] it was reported that a pyrolyzed transition-metal Pc can be even more effective. In addition, pyrolyzed phthalocyanines have been used more recently as raw materials in the production of carbon nanotubes [21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Pyrolyzed phthalocyanines as surrogate carbon catalysts: Initial insights into oxygen-transfer mechanisms

Vallejos-Burgos

Utsumi

Hattori

et al. 2012

Fuel

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a b s t r a c tDeposited and heat-treated phthalocyanines are promising electrocatalysts for replacing platinum in the oxygen reduction reaction (ORR), the most important process in energy conversion systems such as fuel cells; and yet its key mechanistic features are not well understood. To optimize their use, it is necessary to understand their behavior in the absence of an electric field. In the pursuit of this goal, we pyrolyzed metal-free, cobalt and copper phthalocyanines between 550 and 1000°C and studied their structural and chemical changes by elemental analysis, N 2 and CO 2 adsorption, X-ray diffraction (XRD), Raman spectroscopy, X-ray analysis fine structure (XAFS) and X-ray photoelectron spectroscopy (XPS). Their catalytic activity was assessed by non-isothermal O 2 gasification and NO reduction reactions. A comparison of these results with their other properties allowed us to reach the following conclusions: (i) the loss of reactivity of metal-free phthalocyanine with heat treatment is attributed to its structural annealing and heteroatom loss, with the porosity changes having no effect; (ii) for metal phthalocyanines at intermediate heat treatment temperatures, the optimum in reactivity correlates with the micropore surface area and the presence of metal particles, with no influence of nitrogen content; (iii) the coordination metal increases phthalocyanine thermal stability in an inert atmosphere, but in an oxidizing atmosphere it acts as a gasification catalyst even below decomposition temperatures. The implications of these findings for catalytic oxygen-transfer mechanisms are discussed.

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Section: Introductionmentioning

confidence: 99%

Pyrolyzed phthalocyanines as surrogate carbon catalysts: Initial insights into oxygen-transfer mechanisms

Vallejos-Burgos

Utsumi

Hattori

et al. 2012

Fuel

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“…or CO as feedstock and Fe, Ni, or Co as catalysts [5][6][7][8][9][10][11][12][13][14]. Large-scale synthesis of CNTs has been developed in recent years [15][16][17][18]. However, it is wellknown that the quality of CNTs made by CVD is usually low.…”

Section: Introductionmentioning

confidence: 99%

Mass production of high-quality multi-walled carbon nanotube bundles on a Ni/Mo/MgO catalyst

Zhang

Tao

et al. 2005

Carbon

167

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“…Such hydrocarbons would undergo different reaction routes, resulting in formation of either arranged graphitic nanostructures or amorphous forms (Alberts 1997;Endo et al, 2001;Andrews et al, 2002;Dai 2002;Prasek et al, 2011;Mishra et al, 2012). In comparison with other carbon sources, such as methane, acetylene and ethanol, those hydrocarbons with broad molecular weight distribution would provide both crystalline and amorphous carbon nanostructures as could be confirmed by Raman spectroscopic analyses Liu et al, 2003;Puengjinda et al, 2009). Therefore, some pre-treatment would be essential for controlling the final quality or purity of CNPs which are synthesized from those hydrocarbon wastes.…”

Section: Liquid Carbon Sourcementioning

confidence: 96%

Present Advancement in Production of Carbon Nanotubes and Their Derivatives from Industrial Waste with Promising Applications

Kerdnawee

Termvidchakorn

Yaisanga

et al. 2017

KONA

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An increase in global consumption has led to an exponential increase in industrial production activities which inevitably results in overwhelming remain of industrial waste. Consequently it has driven increasing attentions of research and development teams in various countries to propose and investigate novel methodologies to utilize such industrial waste. Instead of using as alternative energy sources, usage of industrial waste for production of carbonaceous nanomaterials has been examined via various routes, such as catalytic pyrolysis, hydrothermal treatment and so on. Meanwhile, for sustainable and secure continuity of the carbonaceous nanomaterial production, broad spectra of promising applications have also been examined. Among those emerging applications, utilization of carbonaceous nanomaterials in pollution control and prevention has been focused worldwide. Therefore, in this review, relevant research works focusing on catalytic pyrolysis of carbonaceous industrial waste for carbonaceous nanomaterial production were comprehensively analyzed and summarized. In addition, promising applications involving with antibiotic removal, spilled oil handling and pollutant gas detection were also reviewed.

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Large-scale synthesis of high-purity well-aligned carbon nanotubes using pyrolysis of iron(II) phthalocyanine and acetylene

Cited by 38 publications

References 22 publications

Pyrolyzed phthalocyanines as surrogate carbon catalysts: Initial insights into oxygen-transfer mechanisms

Pyrolyzed phthalocyanines as surrogate carbon catalysts: Initial insights into oxygen-transfer mechanisms

Mass production of high-quality multi-walled carbon nanotube bundles on a Ni/Mo/MgO catalyst

Present Advancement in Production of Carbon Nanotubes and Their Derivatives from Industrial Waste with Promising Applications

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