Carbon nanotube formation on Ni- or Pd-loaded diamond catalysts

Higashi, Na-oki; Ikenaga, Naoki; Miyake, Takanori; Suzuki, Toshimitsu

doi:10.1016/j.diamond.2004.10.024

Cited by 8 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In a series of the development of catalysts and catalytic reactions such as dehydrogenation of alkanes 18) or ethylbenzene 19) , selective oxidation of methane 20) and ethane 21) to aldehydes, and carbon nanotube formation 22) were successfully carried out using a new type of carbon-based support material, oxidized powdered diamond (O-Dia) and the results are summarized in a review article 23) . All these reactions are performed under oxidative conditions.…”

Section: Introductionmentioning

confidence: 99%

Use of Trickle Bed Reactor for Fischer-Tropsch Reaction over Co–Mn/Oxidized Diamond Catalyst

敦夫¹,

哲史²,

直樹³

et al. 2014

J. Jpn. Petrol. Inst.

Self Cite

View full text Add to dashboard Cite

Fischer-Tropsch synthesis (FTS) using a Co _ Mn/oxidized diamond (O-Dia) catalyst was compared among a fixed bed reactor (FBR), a trickle bed reactor (TBR), and a slurry phase reactor (SPR). For TBR and SPR, hexadecane was employed as a solvent. Regardless of the reactor, the addition of 10 mol% of Mn to Co/O-Dia catalyst greatly increased CO conversion without changing selectivity to C5 liquid products. The highest initial CO conversion was obtained with FBR. However, with an increase in the time on stream, CO conversion decreased, due mainly to the accumulation of high molecular weight hydrocarbons (wax) on the catalyst bed. Although with TBR the initial CO conversion was 5 % lower than that with FBR, at a feed rate of the solvent from 3 to 12 mL/(g-catalyst h), CO conversion did not decrease during a prolonged run. SPR maintained the initial CO conversion for 24 h on stream, but the CO conversion was half of that with TBR. From these findings, we propose that TBR is the most appropriate reactor type for FTS.

show abstract

Section: Introductionmentioning

confidence: 99%

Use of Trickle Bed Reactor for Fischer-Tropsch Reaction over Co–Mn/Oxidized Diamond Catalyst

敦夫¹,

哲史²,

直樹³

et al. 2014

J. Jpn. Petrol. Inst.

Self Cite

View full text Add to dashboard Cite

show abstract

“…, carbon nanofilament or nanotube syntheses on Ni 18), 19) or Pd 20) loaded O-Dia, ammonia synthesis with Ru loaded O-Dia 21) , Fischer-Tropsch synthesis over Co loaded O-Dia 21) , and decomposition of CH3OH to synthesis gas 22) on Ni/O-Dia. O-Dia supported Pd catalyst can be used in the selective oxidation of alcohols to aldehydes in the liquid phase 23) .…”

Section: Introductionmentioning

confidence: 99%

Oxidized Diamond: Novel Catalyst Support Material for Various Catalytic Reactions

Suzuki

Nakagawa

2011

J. Jpn. Petrol. Inst.

Self Cite

View full text Add to dashboard Cite

As a new catalyst support, powdered diamond was first investigated. Although diamond has been considered to be a stable material, the surface carbon was found to react to give C _ H and C _ O _ C or C=O bonds by hydrogenation and oxidation. Oxygen treated diamond (O-Dia) was evaluated as a catalyst support material, which was considered to be a pseudo solid carbon oxide phase corresponding to the well known catalyst support SiO2. Following reactions were successfully carried out using O-Dia supported metal oxides or metal catalysts: Dehydrogenation of light alkanes and ethylbenzene to give light alkenes and styrene on Cr2O3 and V2O5/O-Dia catalysts; direct oxidation of C2H6 and CH4 to aldehydes using CO2 as the oxidant over V2O5/O-Dia catalyst; oxidation of methane to syn-gas over Ni or Co/O-Dia catalysts; carbon nanofilament or nanotube synthesis over Ni and Pd/O-Dia catalysts; ammonia synthesis over Ru/O-Dia catalyst. This review article summarizes the characteristics of these reactions.

show abstract

Carbon nanotube and nanofiber syntheses by the decomposition of methane on group 8–10 metal-loaded MgO catalysts

Ichioka

Higashi

Yamada

et al. 2007

Diamond and Related Materials

View full text Add to dashboard Cite

Carbon nanotube formation on Ni- or Pd-loaded diamond catalysts

Cited by 8 publications

References 11 publications

Use of Trickle Bed Reactor for Fischer-Tropsch Reaction over Co–Mn/Oxidized Diamond Catalyst

Use of Trickle Bed Reactor for Fischer-Tropsch Reaction over Co–Mn/Oxidized Diamond Catalyst

Oxidized Diamond: Novel Catalyst Support Material for Various Catalytic Reactions

Carbon nanotube and nanofiber syntheses by the decomposition of methane on group 8–10 metal-loaded MgO catalysts

Contact Info

Product

Resources

About