Hydrotreating of crude 2-ethylhexanol over Ni/Al2O3 catalysts: Surface Ni species-catalytic activity correlation

Yang, Renchun; Li, Yong; Wu, Junsheng; Zhang, Xin; Zhang, Zhihua; Cheng, Y. Frank; Guo, Jun

doi:10.1016/j.apcata.2009.08.021

Cited by 74 publications

(32 citation statements)

References 43 publications

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“…XRD was used to study the crystalline phases of the prepared materials. Figure 2 [30]. The XRD pattern of Ni 0.5 Al sample with saturated Ni-Al structure matches well with that of a nickel aluminate spinel structure (NiAl 2 O 4 , JCPDS card 10-0339).…”

Section: Tg-dsc and Xrd Analysessupporting

confidence: 64%

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Template-free synthesis of wormhole-like mesoporous Ni–Al composite oxides and catalytic application for steam reforming of benzene

et al. 2015

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Mesoporous Ni-Al composite oxides (Ni x Al, x = 0.05, 0.1, 0.125, 0.25, 0.5) with different Ni/Al molar ratio have been successfully prepared by partial hydrolysis of aqueous solution of Al(NO 3 ) 3 and Ni(NO 3 ) 2 with (NH 4 ) 2 CO 3 solution without templates or organic surfactants. The samples exhibit a wormhole-like mesoporous structures with large specific surface areas of 105-213 m 2 / g and narrow pore size distributions. With increasing Ni/Al molar ratio, BET surface areas decrease, while BJH pore diameters increase. Nickel species are highly dispersed in the alumina frameworks through the formation of Ni-Al composite oxides. The comparative investigation for the reforming of benzene over the prepared Ni 0.1 Al catalyst and the counterpart obtained by templating method reveals that prepared Ni 0.1 Al catalyst shows high stability and coke resistance ability because of the better mass transfer properties of the wormhole-like mesostructure.

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Section: Tg-dsc and Xrd Analysessupporting

confidence: 64%

“…One is the effect of Ni/Al molar ratio and the other is calcination temperature. Yang et al [30] Fig. 3.…”

Section: H 2 -Tpr Resultsmentioning

confidence: 97%

Template-free synthesis of wormhole-like mesoporous Ni–Al composite oxides and catalytic application for steam reforming of benzene

et al. 2015

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“…Considering the fact that the single-step preparation method of the catalyst was more effective for the formation of finely dispersed nickel species in the alumina support than the impregnation method [34], it is expected that OMNA catalyst retained more nickel-saturated surface nickel aluminate phase than Ni/OMA catalyst. According to the previous studies [35,36], surface nickel aluminate phase with a high degree of nickel-saturation is more reducible than that with a low degree of nickel-saturation. This is because reduction of nickel species is favorable when nickel species are surrounded by less aluminum species which act as electron deficient sites.…”

Section: Metal-support Interaction In the Calcined Catalystsmentioning

confidence: 95%

“…Fig. 12 shows the exemplary comparison result of catalytic performance in the steam reforming of LNG between nickelealumina catalysts prepared by an evaporation-induced selfassembly (EISA) method and those prepared by common single-step surfactant-templating methods [35]. Ni/OMA and OMNA catalysts showed a better catalytic performance than Ni-A-CS (a mesoporous NieAl 2 O 3 catalyst prepared by a single-step cationic surfactant-templating method), Ni-A-AS (a mesoporous NieAl 2 O 3 catalyst prepared by a single-step anionic surfactant-templating method), and Ni-A-NS (a mesoporous NieAl 2 O 3 catalyst prepared by a single-step non-ionic surfactant-templating method) catalysts.…”

Section: 5mentioning

confidence: 99%

Hydrogen production by steam reforming of liquefied natural gas (LNG) over ordered mesoporous nickel–alumina catalyst

Bang

Han

Seo

et al. 2012

International Journal of Hydrogen Energy

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“…in the catalyst can be precluded by the absence of a reduction peak at 260°C [9,13]. The peak with T max at 300°C can be attributed to the reduction of NiO particles with no interaction with the support [15]. The interaction of NiO with the support decreases its reducibility.…”

Section: Tpr Of 5%ni-05%pt/al 2 O 3 -Hy Catalystmentioning

confidence: 96%

Highly Active and Selective Nickel–Platinum Catalyst for the Low Temperature Hydrogenation of Maleic Anhydride to Succinic Anhydride and Synthesis of Succinic Acid at 40 °C

Tian

Shi

2011

Catal Lett

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PtNi bimetallic and Ni monometallic catalysts supported on were prepared and evaluated for the hydrogenation of maleic anhydride in the temperature range of 40-150°C. Results from flow reactor studies showed that supports strongly affected the catalytic properties of different bimetallic and monometallic catalysts. The results showed that the HY-Al 2 O 3 support exhibited the highest activity and selectivity. Using NiPt/ Al 2 O 3 -HY catalyst and performing the reaction, it was possible to carry out the lowest reaction temperature ever carried at 100% conversion. Adding a small amount of Pt (0.5) to the Ni (5%)/Al 2 O 3 -HY catalyst that is effective for increasing the selectivity and activity. We also found that PtNi is an efficient catalyst for the one-pot conversion of maleic acid into succinic acid with 100% conversion at 40°C.

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Hydrotreating of crude 2-ethylhexanol over Ni/Al2O3 catalysts: Surface Ni species-catalytic activity correlation

Cited by 74 publications

References 43 publications

Template-free synthesis of wormhole-like mesoporous Ni–Al composite oxides and catalytic application for steam reforming of benzene

Template-free synthesis of wormhole-like mesoporous Ni–Al composite oxides and catalytic application for steam reforming of benzene

Hydrogen production by steam reforming of liquefied natural gas (LNG) over ordered mesoporous nickel–alumina catalyst

Highly Active and Selective Nickel–Platinum Catalyst for the Low Temperature Hydrogenation of Maleic Anhydride to Succinic Anhydride and Synthesis of Succinic Acid at 40 °C

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