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Brungs, Attila J.; York, Andrew P. E.; Claridge, John B.; Márquez‐Álvarez, Carlos; Green, Malcolm L. H.

doi:10.1023/a:1018829116093

Cited by 150 publications

(73 citation statements)

References 14 publications

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“…Afterwards the sample was cooled down to room temperature under argon. The carbide was passivated in flowing 1% O 2 /He at 300 K [22]. The surface area of Mo 2 C is 20 m 2 /g.…”

Section: Methodsmentioning

confidence: 99%

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Aromatization of n-hexane on Mo2C catalysts

Solymosi

Barthos

2005

Catal Lett

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The reaction of n-hexane and 1-hexene has been investigated on unsupported and supported Mo 2 C catalysts. Pure Mo 2 C catalyses the dehydrogenation and aromatization of n-hexane at and above 723 K. Benzene was formed with the highest selectivity, $65%, at 773-823 K at a conversion of $25%. Mo 2 C also exhibited high activity towards the reaction of n-hexane when it was deposited in a small amount (2-10%) on SiO 2 . It is assumed that the production of benzene occurs through the formation and subsequent dehydrogenation-cyclization of hexene. Catalysts prepared in situ revealed that the activation and aromatization of hexane and hexene do not require the presence of Mo-O species in the Mo 2 C.

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“…Afterwards the sample was cooled down to room temperature under argon. The carbide was passivated in flowing 1% O 2 /He at 300 K [22]. The surface area of Mo 2 C is 20 m 2 /g.…”

Section: Methodsmentioning

confidence: 99%

“…In searching new catalyst materials Mo 2 C is one of the candidates, which exhibits excellent catalytic behavior in several reaction [1][2][3][4][5]. Recently, it was found that its combination with ZSM-5 zeolite effectively catalyses the aromatization of methane with 80% selectivity at about 10-12% conversion [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Aromatization of n-hexane on Mo2C catalysts

Solymosi

Barthos

2005

Catal Lett

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“…It would be highly desirable from an economical point of view that the CH 4 /CO 2 reaction should be carried out under high pressures [18][19][20]. Although most research on the dry reforming of methane was carried out in atmospheric pressure, a few of studies have also appeared to explore the high pressure reforming reaction [21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Tomishige et al [22] investigated the effect of pressure on the dry reforming reaction over a Ni 0:03 Mg 0:97 O solid solution catalyst that, under atmospheric pressure, is very resistant to carbon deposition.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of atmospheric and high pressure CO2 reforming of methane over Ni/MgO-AN catalyst

Yuhe

2005

Catal Lett

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Catalytic activity of Ni/MgO-AN prepared from alcogel derived MgO was studied for the dry reforming of methane under atmospheric as well as high pressure (1.5 MPa). Different catalytic performances are observed in the atmospheric and high-pressure reactions; while the catalyst was highly active and extremely stable under atmospheric pressure it shows a self-stabilization process under high pressure. The self-stabilization process was characterized initially by a decrease in deactivation rate with increasing the reaction time-on-stream (TOS) up to ca. 12 h and then by a thereafter stabilization during the reaction. Characterizations of the coked catalyst with TPO, TEM, SEM, TPH and XRD techniques detected very little carbon deposits (ca. 0.2 wt% of the catalyst charge) on the used catalyst under atmospheric pressure. In contrast, large amount of whisker carbon deposit (ca. 100 wt% of the catalyst charge) were formed on the used catalyst under high pressure. In the high-pressure reaction, the activity decline during the initial stage was closely related to the amount of carbon deposits on the catalyst, which also became stabilized after the catalyst had served the reaction for ca. 12 h. The carbon deposits on the used catalyst in the high-pressure reaction contained two different components (a-carbon and b-carbon) while the carbon deposits in the atmospheric pressure reaction were in the form of a-carbon. No notable sintering of metallic nickel was detected by XRD on the used catalyst in the reaction under atmospheric pressure whereas unavoidable sintering of metallic Ni particles happened within the very first hours of the high-pressure reaction.

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“…Unsupported Mo 2 C was prepared by the carburization of MoO 3 (products of ALFA AESAR) by C 2 H 6 /H 2 [25]. The oxide was heated under 10% v/v C 2 H 6 /H 2 gas mixture from room temperature to 900 K at a heating rate of 0.8 K/min.…”

Section: Methodsmentioning

confidence: 99%

Aromatization of ethanol on Mo2C/ZSM catalysts

2006

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The reaction of ethanol was investigated on Mo 2 C, Mo 2 C/SiO 2 and Mo 2 C/ZSM-5 catalysts at temperature ranging 573-973 K under atmospheric pressure. Mo 2 C and Mo 2 C/SiO 2 catalyzed only the decomposition of ethanol to H 2 , ethylene, acetaldehyde and different hydrocarbons. The main reaction pathway on pure ZSM-5 is the dehydration reaction yielding ethylene, small amounts of hydrocarbons and aromatics. Deposition of Mo 2 C on zeolite greatly enhanced the yield of benzene and toluene by catalyzing the aromatization of ethylene formed in dehydration process of ethanol.KEY WORDS: ethanol decomposition; aromatization of ethanol; aromatization of ethylene; Mo 2 C/ZSM-5 catalyst.

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Untitled

Cited by 150 publications

References 14 publications

Aromatization of n-hexane on Mo2C catalysts

Aromatization of n-hexane on Mo2C catalysts

Comparative study of atmospheric and high pressure CO2 reforming of methane over Ni/MgO-AN catalyst

Aromatization of ethanol on Mo2C/ZSM catalysts

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