Effect of base promoter on activity of MCM-41-supported nickel catalyst for hydrogen production via dry reforming of methane

Nisa, Khadijah Sayyidatun; Suendo, Veinardi; Sophiana, Intan Clarissa; Susanto, Hardhono; Kusumaatmaja, Ahmad; Nishiyama, Norikazu; Budhi, Yogi Wibisono

doi:10.1016/j.ijhydene.2022.05.081

Cited by 23 publications

(4 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was found that the anti-carbon deposition performance of the catalyst could be significantly enhanced by adding a certain amount of Sr, which was attributed to the fact that the addition of Sr could form a strong interaction with Ni, reducing the particle size of Ni particles and hindering the formation of filamentous carbon C β , resulting in more easily eliminated amorphous carbon C α . Nisa et al [124] prepared Ni/MCM-41 catalysts doped with Mg, Ca, Na, and K via the primary wet impregnation method and found that the addition of both Ca and Mg helped to restrain the sintering of the active component Ni under high temperatures, and Ca and Mg also increased the basicity of the catalyst, which promoted the adsorption of CO 2 and thus reduced the formation of carbon deposition. Zeng et al [125] used a hydrothermal synthesis method to dope the alkaline additive MgO onto the SiO 2 support and found that the addition of MgO enhanced the basicity of the catalyst surface, resulting in the enhanced ability of CO 2 adsorption on the catalyst surface, which in turn improved the reactivity.…”

Section: Adding Promotermentioning

confidence: 99%

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

et al. 2023

View full text Add to dashboard Cite

In recent decades, the massive emission of greenhouse gases, such as carbon dioxide and methane, into the atmosphere has had a serious impact on the ecological environment. The dry reforming of carbon dioxide and methane to syngas cannot only realize the resource utilization of methane and carbon dioxide but also reduce global climate change. It is of great significance in carbon emission reduction. Owing to the dry reforming of methane (DRM) being a strongly endothermic reaction, it needs to be carried out under high-temperature conditions. It makes the catalyst have problems of the sintering of metal, carbon deposition, and poisoning. This article revolves around the problem of catalyst deactivation during the DRM reaction. It expands upon the thermodynamics and mechanisms of the DRM reaction, analyzes the causes of metal catalyst deactivation due to carbon deposition, sintering, and poisoning, and summarizes how the active components, supports, and additives of metal catalysts restrain the DRM catalyst deactivation during the reaction. The analysis revealed that changing the type and size of the active metal, adjusting the properties of the support, and adding additives can further regulate the dispersion of the active component, the interaction between the active component and the support, the oxygen vacancies of the support, and the acidity and basicity of the catalyst surface, ultimately achieving control over the metal catalyst’s resistance to sintering, carbon deposition, and sulfur poisoning. In addition, it discusses the application of metal catalysts in photothermal and plasma-catalyzed DRM. Finally, it outlines the prospects for research on metal catalysts for the DRM.

show abstract

Section: Adding Promotermentioning

confidence: 99%

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Ni/CeO 2 −Al which strong interactions with the support are generated between Ni and MgO, which can effectively inhibit sintering and carbon deposition. 24−26 In addition, mesoporous materials with high specific surface areas can promote the dispersion of metals into the support structure, i.e., Al 2 O 3 , 27 SBA-15, 28 and MCM-41 29 can effectively promote the high dispersion of metals and have a strong metal−support interaction. Hydroxyapatite (HAP) exhibits excellent thermal stability and anion−cation exchange capacity, and varying the Ca/P molar ratio induces significant changes in the acid−base properties of hydroxyapatite, which has attracted increasing attention in the field of DRM.…”

Section: Introductionmentioning

confidence: 99%

“…Ni/CeO 2 –Al 2 O 3 shows high activity and stability for DRM based on two properties: limiting the growth of Ni particles and inhibiting carbon deposition. Reductive solid solution catalysts based on MgO are one of the most widely studied catalysts in DRM, in which strong interactions with the support are generated between Ni and MgO, which can effectively inhibit sintering and carbon deposition. − In addition, mesoporous materials with high specific surface areas can promote the dispersion of metals into the support structure, i.e., Al 2 O 3 , SBA-15, and MCM-41 can effectively promote the high dispersion of metals and have a strong metal–support interaction.…”

Section: Introductionmentioning

confidence: 99%

Promotional Effects of Mg-Substituted Ni/Mg_xHAP Catalysts on Carbon Resistance during Dry Reforming of Methane

Gong

Xie

et al. 2023

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Supported Ni-based catalysts were easily sintered and deactivated in the dry re-forming of methane (DRM), resulting from a weak metal–support interaction. To solve this problem, a series of Mg-substituted hydroxyapatite (HAP) catalysts (Ni/Mg x HAP, x = 0, 0.5, 1, 1.5) with 3% Ni loaded were prepared by partial substitution of Ca in HAP by Mg and used for DRM. The results showed that the presence of Mg influenced the formation and growth of HAP, resulting in lattice distortion and the formation of a large number of lattice defects in HAP, thus promoting Ni entry into the HAP lattice, and the amount of Ni2+[II] in the HAP lattice increased. Ni2+[II] in the lattice did not easily sinter at a high temperature, and the Ni average particle size of the Ni/Mg1HAP catalyst was the smallest (7.5 nm) after reduction at 700 °C; in addition, the specific surface area of the catalyst increased after Mg substitution. After a 100 h stability test, the Ni/Mg1HAP catalyst maintained high catalytic activity. In situ infrared studies showed that Ni/Mg1HAP inhibited the formation of monodentate carbonate and prevented deactivation of the catalyst caused by the coverage of active sites.

show abstract

“…Due to increasing demand for light alkenes and their products, the conversion of starting materials such as light alkanes, 1-11 alcohols, [12][13][14][15][16] carbon dioxide, [17][18][19][20][21][22][23] has become an important industrial process. Steam cracking of natural gas 16,[24][25][26][27][28][29][30][31] and naphtha [32][33][34] as well as fluid catalytic cracking in oil refining has been among the earliest techniques employed. Recent efforts have focused on developing less energy intensive and more selective alternatives to steam cracking.…”

Section: Introductionmentioning

confidence: 99%

Insight into Dehydrogenation of C2HX Species in Ethane Steam Reforming on Ir(100): A DFT Study

Ore,

Wu,

Wang

2023

Preprint

View full text Add to dashboard Cite

The reaction barrier and heat of formation of various dehydrogenation reactions involved in the steam reforming of ethane (SRE) are critical parameters in the understanding and improving the technology of SRE. Focusing on Ir-based catalyst, we report a comprehensive reaction network of dehydrogenation of ethane on Ir(100) based on extensive density functional theory (DFT) calculations on 10 C-H bond cleavage reactions. The geometric and electronic structures of the adsorption of C2Hx species with corresponding transition-state and product structures are reported. We found that the C-H bond in CH3C required the most energy to activate, due to the most stable four-fold hollow configuration of the adsorption site. Ethane can easily dissociate to CH3CH and CH2CH2 on Ir(100). By using the degree of dehydrogenation of the reactant species as a variable to correlate the C-H bond cleavage barrier as well as reaction energy, DFT results reveal that the Ir(100) surface to a great extent promotes ethane dehydrogenation when compared to other surfaces.

show abstract

Effect of base promoter on activity of MCM-41-supported nickel catalyst for hydrogen production via dry reforming of methane

Cited by 23 publications

References 49 publications

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

Promotional Effects of Mg-Substituted Ni/Mg_xHAP Catalysts on Carbon Resistance during Dry Reforming of Methane

Insight into Dehydrogenation of C2HX Species in Ethane Steam Reforming on Ir(100): A DFT Study

Contact Info

Product

Resources

About

Effect of base promoter on activity of MCM-41-supported nickel catalyst for hydrogen production via dry reforming of methane

Cited by 23 publications

References 49 publications

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

Deactivation Mechanism and Anti-Deactivation Measures of Metal Catalyst in the Dry Reforming of Methane: A Review

Promotional Effects of Mg-Substituted Ni/MgxHAP Catalysts on Carbon Resistance during Dry Reforming of Methane

Insight into Dehydrogenation of C2HX Species in Ethane Steam Reforming on Ir(100): A DFT Study

Contact Info

Product

Resources

About

Promotional Effects of Mg-Substituted Ni/Mg_xHAP Catalysts on Carbon Resistance during Dry Reforming of Methane