Conversion of CO2 to methanol using NiGa/mesosilica (NiGa/MSO) catalyst

Nguyen, Hong Khanh Dieu; Dang, Toan

doi:10.1007/s10934-019-00730-0

Cited by 8 publications

(13 citation statements)

References 15 publications

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“…The BJH results illustrated that the mesoporous channels in the M2 catalyst were ordered, and the porewidth concentrated at around 3.5 nm which very similar to other typical materials [17,21,23].…”

Section: Characterizations Of Nigaco/mso Catalystsupporting

confidence: 66%

“…The support possessed higher specific surface area than the alloy one, and it could help to strengthen the active site distribution. The Ni-Ga/mesosilica reported in another paper [17], behaved as the best candidate for the conversion of CO 2 to methanol at mild pressure (30-35 bar). However, the pressure of the process was not mild enough and need to be further reduced.…”

Section: Introductionmentioning

confidence: 87%

“…As a development of the NiGa/MSO catalyst [17,23], another metal component as a promoter was introduced to the catalyst. The Co promoter was chosen because Co 2+ had the same cation dimension with Ni 2+ , and in many situation, had been used as a promoter for Ni based catalysts [24].…”

Section: Characterizations Of Nigaco/mso Catalystmentioning

confidence: 99%

“…7). The isotherm was very specified for a mesoporous material with a hysteresis loop occurred between the adsorption and desorption curves, caused by the gas condensation within the mesoporous channels [17,21,23]. Pore distribution of the M2 catalysts was also plotted in Fig.…”

Section: Characterizations Of Nigaco/mso Catalystmentioning

confidence: 99%

“…These temperatures could be assigned for the water removal and the reductions of metal alloy at different temperatures. The reduction at 450 °C and 580 °C represented to the alloy sites connected to the MSO support with medium and strong contact [17,21], and no evidence was observed for the reduction of the alloy sites which had no connection to the support. Along with this connection, the high reduction temperatures also supported the positive role of Co as a promoter.…”

Section: M1 M2 M3mentioning

confidence: 99%

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Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

et al. 2020

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The paper reported preparation, characterization and application of novel ordered mesoporous silica supported NiGaCo catalyst in direct conversion of carbon dioxide to methanol. The catalyst was prepared by doping Ni 2+ , Ga 3+ and Co 2+ onto ordered mesoporous amorphous silica support (MSO) through wet impregnation-condensation method followed by calcination and reduction to transfer the metallic cation states to the alloy ones. The catalyst was assigned as NiGaCo/MSO, being prepared under conditions such as room temperature, time of 24 h, calcination at 600 °C for 6 h, and reduction in NaBH 4 /ethanol solution, and could be used for converting CO 2 to methanol at low pressure. Investigations illustrated high activity of the catalyst at high pressure of 35 bars but at low pressure of 5 bar, the catalyst still showed considerable activity and selectivity. Many techniques were applied for the catalysis characterization including Small Angle X-Ray Diffraction (SAXRD), Wide Angle X-Ray Diffraction (WAXRD), Fourier Transform-Infrared Spectroscopy (FT-IR), Thermal Gravimetric-Differential Scanning Calorimetry-Mass Spectroscopy (TG-DSC-MS) and X-Ray Photoelectron Spectroscopy (XPS). Gas Chromatography (GC) coupled Thermal Conductivity Detector (TCD) and Flame Ionized Detector (FID) were used for determining the gas composition.

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Section: Characterizations Of Nigaco/mso Catalystsupporting

confidence: 66%

Section: Introductionmentioning

confidence: 87%

Section: Characterizations Of Nigaco/mso Catalystmentioning

confidence: 99%

Section: Characterizations Of Nigaco/mso Catalystmentioning

confidence: 99%

Section: M1 M2 M3mentioning

confidence: 99%

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Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

et al. 2020

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Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

et al. 2023

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NiÀ Zn pair is predicted through descriptor-based studies to be conducive for CO 2 hydrogenation. In this study, NiZn (1 : 1) intermetallics supported on TiO 2 is identified as a potential candidate for near ambient pressure activity. The effect of reduction temperature on the catalyst textural properties as well as on CO 2 to methanol reduction are explored. Structural and microscopic studies provide clear evidence of phase evolution of NiZn alloy with increasing reduction temperatures, along with phase variations of Zn based oxides. Interface between NiZn intermetallics and ZnO nanoparticles observed at reduction temperature of 550 °C, seems to play a crucial role in making this system most active and selective to methanol. In addition, in-situ IR studies provide mechanistic insights and indicates the formation of methanolic species even at ambient pressure.

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Liquid Metal Alloy Catalysis – Challenges and Prospects

Ameen,

Jabbar,

Yang

et al. 2023

ChemCatChem

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Significant progress has been made in recent years in the development of liquid metal alloy catalysts. This article provides an overview of the state‐of‐the‐art research pertaining to liquid metal alloy catalysis, including alloy synthesis, reactor design, and theoretical calculations. Different alloy synthesis methods are discussed with a focus on strategies that can achieve colloidal intermetallic structures in liquid metal alloys. Current reactors for liquid metal‐based electrocatalytic and thermochemical processes are summarized. The application of theoretical tools, such as machine learning and computational chemistry to further liquid metal alloy design, is discussed. Finally, an outlook on the technological challenges and our perspective on future research opportunities for liquid metal alloy catalysis is presented.

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Conversion of CO2 to methanol using NiGa/mesosilica (NiGa/MSO) catalyst

Cited by 8 publications

References 15 publications

Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol

Liquid Metal Alloy Catalysis – Challenges and Prospects

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Conversion of CO2 to methanol using NiGa/mesosilica (NiGa/MSO) catalyst

Cited by 8 publications

References 15 publications

Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

Study on preparation of ordered mesoporous silica supported NiGaCo catalyst for conversion of carbon dioxide to methanol

Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO2 Catalyst for CO2 Conversion to Methanol

Liquid Metal Alloy Catalysis – Challenges and Prospects

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Mechanistic Insights into Near Ambient Pressure Activity of Intermetallic NiZn/TiO₂ Catalyst for CO₂ Conversion to Methanol