Dry reforming of methane to hydrogen-rich syngas over robust fibrous KCC-1 stabilized nickel catalyst with high activity and coke resistance

Abdul-Rahman, Alias; Jalil, Aishah Abdul; Hamid, M.Y.S.; Siang, Tan Ji; Fatah, N.A.A.; Izan, S.M.; Hassan, N.S.

doi:10.1016/j.ijhydene.2019.04.126

Cited by 68 publications

(15 citation statements)

References 68 publications

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“…Bawah et al reported the presence of high acidity on zeolite‐supported Ni catalysts favours severe carbon formation which propagates catalyst deactivation. Moreover, the DTA profile in Figure C displays a sharp peak with a minimum at around 680°C for Ni/ZSM‐5 catalyst, signifying formation of graphitic carbon . The addition of Ta influenced Ni‐support interaction, and the medium‐weak acid sites serves as anchoring sites for Ni particles stabilization.…”

Section: Resultssupporting

confidence: 89%

“…The weight loss results from trapped water molecules within the catalyst channels or those generated from RWGS side reaction . Spent Ni/FZSM5 displayed a peak in the 250°C to 600°C region (Figure B), representing burning of surface carbon . For Ni/ZSM‐5 catalyst, there was notable weight loss in the 250°C to 850°C region.…”

Section: Resultssupporting

confidence: 79%

“…The O1s spectrum can be deconvoluted into component peaks to show the presence of bridging oxygen species. The peak observed on Ni/FZSM‐5 at 529.1, 530.8 and 532.1 corresponds to Si ‐ O ‐ Ni, Si ‐ O ‐ Al and Si ‐ O ‐ Si bonds, respectively . In the case of Ni‐Ta/FZSM‐5, additional peak at 532.9 eV belonging to Si ‐ O ‐ Ta bond was observed .…”

Section: Resultsmentioning

confidence: 92%

“…As we recently reviewed, the nature of the support has a strong influence on the activity, selectivity and stability of supported Ni catalysts in DRM reaction . Support materials such as SiO 2 , KCC‐1, KIT‐6, Al 2 O 3 , CeO 2 , perovskites and zeolites have been investigated in DRM. In general, zeolites are microporous crystalline aluminosilicates.…”

Section: Introductionmentioning

confidence: 99%

“…In recent times, fabrication of fibrous materials provides a viable route in producing catalysts with large pore system capable of accelerating diffusion of reactants and maintaining stable catalytic performance . Abdulrasheed et al synthesised a fibrous KCC‐1 silica material via one‐pot hydrothermal method producing a highly active and stable DRM catalyst. The fibrous morphology not only offer high surface area but also reinforced confinement of Ni particles, exhibiting remarkable performance much better than conventional SiO 2 support.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

et al. 2020

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A highly active and robust fibrous spherical ZSM-5-supported nickel catalyst with different promoters (Mg, Ca, Ta, Ga) have been synthesised by microemulsion method for dry reforming of methane (DRM). The structural framework provided by the unique fibrous spherical ZSM-5 aided confinement of Ni particles. Catalytic activity was improved by homogenous distribution of surface acid-basic sites, thereby reducing the propensity of coke deposition.Bimetallic Ni-Ta catalyst produced the highest CH 4 and CO 2 conversions at 93% and 98%, respectively, with H 2 /CO ratio closer to unity (0.97). The nature of acid sites and bimetallic Ni-Ta synergism amplified interaction of catalyst components, resulting in improved interaction with the reactants, thus impeding metal sintering and coke deposition. Consequently, the Ni-Ta/FZSM-5 catalyst shows long-term activity (80 hours) for the DRM reaction at 800 C. K E Y W O R D Sdry reforming, methane, Ni/ZSM-5, nickel, tantalum

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 79%

Section: Resultsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

et al. 2020

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Highly Stable Ni−B/Honeycomb−Structural Al₂O₃ Catalysts for Dry Reforming of Methane

Luo,

Su,

Chen

et al. 2024

Chemistry An Asian Journal

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Two−component catalysts have garnered significant attention in the field of catalysis due to their ability to inhibit Ni sintering. In the present work, honeycomb−structured Al2O3−supported Ni and B were prepared to enhance coke tolerance during dry reforming of methane (DRM). Transmission electron microscopy (TEM) revealed that the average particle sizes on Ni/Al2O3 and Ni−0.16B/Al2O3 were 7.6 nm and 4.2 nm, respectively, indicating that B can effectively inhibit Ni sintering. After a 100‐hour reaction, the conversion of CH4 and CO2 on Ni/Al2O3 decreased by approximately 5%, whereas on Ni−0.16B/Al2O3, there was no significant decrease in CH4 and CO2 conversion, with values of approximately 81.6% and 87.2%, respectively. In situ DRIFT spectra demonstrated that Ni−0.16B/Al2O3 enhanced the activation of CO2, thus improving the catalyst's stability. A Langmuir−Hinshelwood−Hougen−Watson (LHHW) model was developed for intrinsic kinetics, and the resulting kinetic expressions were well fit to the experimental data, with R2 values exceeding 0.9. The activation energies were also calculated. The outstanding stability of Ni−0.16B/Al2O3 can be attributed to its stable honeycomb structure and B's ability to significantly inhibit Ni sintering, reduce catalyst particle size, and enhance coke tolerance.

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Synergistic Syngas Production: Needleless Electrospinning Synthesis of Co/CeO₂–La₂O₃ Catalyst for Efficient Dry Reforming of Methane

et al. 2023

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The prime cause for catalyst deactivation during dry reforming of methane (DRM) has been attributed to the deposition of carbon. Nanofibrous (NF) catalysts are attractive candidates that offer high catalytic activity and stability in DRM. A comparative study between electrospun and impregnated Co/CeO2–La2O3 catalysts in the DRM reaction was carried out to evaluate the merits of the NF catalyst. Application of the electrospun catalyst yielded the highest activity in DRM and showed a substantial improvement in resistance to carbon formation. The unique structure of the NF electrospun catalyst, the robust metal‐support interaction, and the increased surface area could more effectively suppress deactivation of the catalyst during an 8‐h DRM reaction than the impregnated catalyst.

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Dry reforming of methane to hydrogen-rich syngas over robust fibrous KCC-1 stabilized nickel catalyst with high activity and coke resistance

Cited by 68 publications

References 68 publications

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

Highly Stable Ni−B/Honeycomb−Structural Al₂O₃ Catalysts for Dry Reforming of Methane

Synergistic Syngas Production: Needleless Electrospinning Synthesis of Co/CeO₂–La₂O₃ Catalyst for Efficient Dry Reforming of Methane

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Dry reforming of methane to hydrogen-rich syngas over robust fibrous KCC-1 stabilized nickel catalyst with high activity and coke resistance

Cited by 68 publications

References 68 publications

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

Highly Stable Ni−B/Honeycomb−Structural Al2O3 Catalysts for Dry Reforming of Methane

Synergistic Syngas Production: Needleless Electrospinning Synthesis of Co/CeO2–La2O3 Catalyst for Efficient Dry Reforming of Methane

Contact Info

Product

Resources

About

Highly Stable Ni−B/Honeycomb−Structural Al₂O₃ Catalysts for Dry Reforming of Methane

Synergistic Syngas Production: Needleless Electrospinning Synthesis of Co/CeO₂–La₂O₃ Catalyst for Efficient Dry Reforming of Methane