Preparation of the highly loaded and well-dispersed NiO/SBA-15 for methanation of producer gas

Lu, Baowang; Kawamoto, Katsuya

doi:10.1016/j.fuel.2012.09.009

Cited by 82 publications

(39 citation statements)

References 30 publications

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“…1 (A) (b)) of product was exactly like that of SBA-15, two hysteresis loops were found in desorption isotherm ( Fig. 1 (A) (b)), similar to the post synthesis method for preparing NiO/SBA-15 with high NiO loading, 19 indicating that a blocking effect had taken place since Ni particles were grafted at the entrance of pore, and ink-bottle shaped pores were present. When NH 3 /Ni mole ratios of 2~4 were employed, All isotherms ( Fig.…”

Section: Synthesis Of Catalystssupporting

confidence: 66%

“…For further comparison, according to the previous report, 19 a conventional post synthesis (solvent (ethanol) impregnation (SI)) method was also employed to prepare highly dispersed 10 wt% NiO in SBA-15. The preparation conditions and chemical-physical characteristics of NiO dispersed SBA-15 sample are also summarized in Table 1 (Sample no.…”

Section: Synthesis Of Catalystsmentioning

confidence: 99%

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Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation

Abe

et al. 2015

RSC Adv.

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By a post synthesis method, nickel (Ni) particles could be grafted onto SBA-15 for the first time through a chemical bond (-O-Ni-O-Si-O-) formation between silicon (Si) and Ni via oxygen (O) using Ni ammonia (NH3) complex ions (Ni(NH3)x) 2+ with NH3/Ni mole ratio of 1~5, which existed as Ni phyllosilicate on SBA-15 surface, while Ni particles could not be grafted onto SBA-15 in the absence of NH4OH (NH3/Ni mole ratio of 0). NH3/Ni mole ratio of 2~4 was suitable grafting conditions, which could give a product with the closest Ni amount to raw. This product obtained was named Ni-grafted SBA-15 sample. XPS, UV-vis and H2-TPR analyses demonstrated that a chemical bond was formed between Ni and silicon (Si) via oxygen (O), and no bulk nickel oxides existed in Ni-grafted SBA-15 sample. The formation of -O-Ni-O-Si-O-was completed via the reaction between hydrolyzate Ni(OH)(NH3)x-1) + from (Ni(NH3)x) 2+ and ≡Si-OH (silanol sites) on SBA-15 surface. Ni-grafted SBA-15 catalyst suited CO2 methanation, resulting in higher CO2 conversion and methane selectivity than NiO dispersed SBA-15 catalyst obtained by conventional post synthesis method. The activation energy for CO2 methanation increased with decreasing initial Ni amount used. The rate equation for CO2 methanation could be expressed as: r = kCCO 2 0.64 CH 2 4.05 , C was concentration. Ni-grafted SBA-15 catalyst had high thermal stability for CO2 methanation.

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Section: Synthesis Of Catalystssupporting

confidence: 66%

Section: Synthesis Of Catalystsmentioning

confidence: 99%

Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation

Abe

et al. 2015

RSC Adv.

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“…Firstly, CO 2 conversion increases on increasing the H 2 /CO 2 ratio, up to a value of 6, and the maximum CO 2 conversion increases on increasing the NiO loading regardless of the preparation method (heat treatment (HT) or solvent impregnation (SI)) [140]. However, on using the HT method the NiO particles are preferentially dispersed outside the SBA-15 pores, whereas by the SI method they are included into the SBA-15 pores.…”

Section: Silica-supported Nickelmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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CO 2 methanation is a well-known reaction that is of interest as a capture and storage (CCS) process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas (SNG) production. Integrating water electrolysis and CO 2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO 2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO 2 methanation process. For this reason, research on CO 2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO 2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO 2 methanation process increases their productivity. The present work aims to give a critical overview of CO 2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO 2 methanation, are also included.

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“…So far, few works have been published dealing with the use of micro and mesoporous materials as supports for Ni-based CO2 and CO methanation catalysts [6][7][8][9][10][11][12][13][14][15][16][17] , the mainly used being USY zeolite, SBA-15 and MCM-41. Ni-based USY zeolite catalysts showed interesting performances towards methanation being reported the effect of Ni content, Ce addition, the preparation method conditions and some highlights concerning the reaction mechanism 6,[17][18][19] .…”

Section: Introductionmentioning

confidence: 99%

Micro- and mesoporous supports for CO2 methanation catalysts: A comparison between SBA-15, MCM-41 and USY zeolite

Bacariza

Graça

Bebiano

et al. 2018

Chemical Engineering Science

120

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This version is available at https://strathprints.strath.ac.uk/62298/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. All the results are comparable to the obtained using a HNaUSY zeolite with Si/Al=2.8 as support. Cerium incorporation on Ni/mesoporous supports allowed enhancing the CO2 conversion, especially at lower temperatures, as already reported for the zeolite-based samples.

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Preparation of the highly loaded and well-dispersed NiO/SBA-15 for methanation of producer gas

Cited by 82 publications

References 30 publications

Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation

Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation

Supported Catalysts for CO2 Methanation: A Review

Micro- and mesoporous supports for CO2 methanation catalysts: A comparison between SBA-15, MCM-41 and USY zeolite

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Preparation of the highly loaded and well-dispersed NiO/SBA-15 for methanation of producer gas

Cited by 82 publications

References 30 publications

Grafting Ni particles onto SBA-15, and their enhanced performance for CO2 methanation

Grafting Ni particles onto SBA-15, and their enhanced performance for CO2 methanation

Supported Catalysts for CO2 Methanation: A Review

Micro- and mesoporous supports for CO2 methanation catalysts: A comparison between SBA-15, MCM-41 and USY zeolite

Contact Info

Product

Resources

About

Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation

Grafting Ni particles onto SBA-15, and their enhanced performance for CO₂ methanation