Nano-MgO: novel preparation and application as support of Ni catalyst for CO2 reforming of methane

Xu, Bo-Qing; Jin, Wei; Wang, Haiyan; Sun, Kang; Zhu, Quan

doi:10.1016/s0920-5861(01)00303-0

Cited by 206 publications

(114 citation statements)

References 22 publications

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“…MgO can be obtained mainly by thermal treatment of magnesium hydroxide or carbonate (Aramendia et al, 1996;Xu et al, 2001), and, more recently, by the sol-gel method (Choi and Hwang, 2000;López et al, 1998) and sonication method (Tang and Shi, 2008). In the sol-gel procedure, the fabrication of nanocrystalline and nanoparticulate metal oxides involves synthesis from methoxides or alkoxides of the metals followed by controlled drying or dehydration under vacuum (Stark et al, 1996;Znaidi et al, 1996;Koper et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Nanosize MgO as antibacterial agent: preparation and characteristics

Tang

Fang

Zhang

et al. 2012

Braz. J. Chem. Eng.

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-The antibacterial activity of MgO nanoparticles prepared by a sonication method was evaluated in this paper. The effect of calcination conditions on the size and antibacterial activity of MgO nanoparticles was investigated. MgO nanoparticles were characterized for purity (TGA), crystallinity and crystal size (XRD), particle size and morphology (TEM) and surface area (BET). Results showed that the smallest size of 6 nm could be obtained. The lethal effects of nanocrystalline MgO were evaluated on Lactobacillus plantarum. At a concentration of 100 ppm, the killing effect of MgO was close to 1 log reduction for L. plantarum after 24 h exposure. At 1000 ppm and 24 h exposure, the killing effect of MgO was more than a 2.8 log reduction. With the increase of calcination time, the lethal effect of MgO nanoparticles increased after 6 h or 24 h exposure at 100 ppm or 1000 ppm. 2.86 log and 2.89 log were killed at 1000 ppm after 24 h exposure using the sample MgO, sonication, A, and the sample MgO, sonication, B, respectively. When the sample MgO, sonication, C, was used, the lethal quantity of L. plantarum was increased to a 3.36 log reduction.

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Section: Introductionmentioning

confidence: 99%

Nanosize MgO as antibacterial agent: preparation and characteristics

Tang

Fang

Zhang

et al. 2012

Braz. J. Chem. Eng.

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“…There are several ways currently being applied to reach this purpose, such as applying various types of supports with enhanced structural and textural properties [19][20][21], and the application of different promoters and inhibitors are the most important efforts to solve these drawbacks [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Inhibiting Fe–Al Spinel Formation on a Narrowed Mesopore-Sized MgAl2O4 Support as a Novel Catalyst for H2 Production in Chemical Looping Technology

Hafizi

Rahimpour

2018

Catalysts

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Abstract:In this paper, the structure of Al 2 O 3 is modified with magnesium to synthesize MgAl 2 O 4 as an oxygen carrier (OC) support. The surface properties and structural stability of the modified support are improved by the incorporation of magnesium in the structure of the support and additionally by narrowing the pore size distribution (about 2.3 nm). Then, iron oxide is impregnated on both an

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“…The first strategy is using a support with appropriate structural and textural properties that improves Ni dispersion over the carrier surface and inhibits the agglomeration of Ni nanoparticles [30,31]. Previous experiments have shown that the size of nickel particles have remarkable influence on its catalytic activity.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Production from Cyclic Chemical Looping Steam Methane Reforming over Yttrium Promoted Ni/SBA-16 Oxygen Carrier

et al. 2017

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Abstract:In this work, the modification of Ni/SBA-16 oxygen carrier (OC) with yttrium promoter is investigated. The yttrium promoted Ni-based oxygen carrier was synthesized via co-impregnation method and applied in chemical looping steam methane reforming (CL-SMR) process, which is used for the production of clean energy carrier. The reaction temperature (500-750 • C), Y loading (2.5-7.4 wt. %), steam/carbon molar ratio (1-5), Ni loading (10-30 wt. %) and life time of OCs over 16 cycles at 650 • C were studied to investigate and optimize the structure of OC and process temperature with maximizing average methane conversion and hydrogen production yield. The synthesized OCs were characterized by multiples techniques. The results of X-ray powder diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX) of reacted OCs showed that the presence of Y particles on the surface of OCs reduces the coke formation. The smaller NiO species were found for the yttrium promoted OC and therefore the distribution of Ni particles was improved. The reduction-oxidation (redox) results revealed that 25Ni-2.5Y/SBA-16 OC has the highest catalytic activity of about 99.83% average CH 4 conversion and 85.34% H 2 production yield at reduction temperature of 650 • C with the steam to carbon molar ratio of 2.

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Nano-MgO: novel preparation and application as support of Ni catalyst for CO2 reforming of methane

Cited by 206 publications

References 22 publications

Nanosize MgO as antibacterial agent: preparation and characteristics

Nanosize MgO as antibacterial agent: preparation and characteristics

Inhibiting Fe–Al Spinel Formation on a Narrowed Mesopore-Sized MgAl2O4 Support as a Novel Catalyst for H2 Production in Chemical Looping Technology

Hydrogen Production from Cyclic Chemical Looping Steam Methane Reforming over Yttrium Promoted Ni/SBA-16 Oxygen Carrier

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