Progress and Future Challenges in Designing High‐Performance Ni/CeO₂ Catalysts for CO₂ Methanation: A Critical Review

Carbon Neutralization, Год журнала: 2025, Номер 4(1)

Опубликована: Янв. 1, 2025

ABSTRACT The Ni/CeO 2 catalyst stands out among various solid metal oxide catalysts for its exceptional catalytic proficiency, positioning it as a prime candidate the industrialization of methanation processes. This review thoroughly examines prevalent challenges associated with in reactions, compiles current strategies to overcome these hurdles, and presents novel perspectives. elucidates structural characteristics applications discusses synthesis methods their respective merits demerits, explores reaction systems at both laboratory industrial scales, clarifies underlying mechanisms. Furthermore, underscores mainstream approaches enhance low‐temperature activity mitigate decrement due Ni agglomeration. concludes by proposing future directions improving preventing deactivation, encompassing development innovative architectures, integrating in‐situ characterization theoretical calculations, investigating photothermal systems. Undoubtedly, scientific researchers will persistently strive develop high across broad temperature range robust stability, driving CO technology foreseeable future.

Язык: Английский

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Evaluation in situ of Ni/CeO2 catalysts synthesized via polymeric precursor method by XAS for CO2 reduction

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125144 - 125144

Опубликована: Фев. 1, 2025

Язык: Английский

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Aqueous Phase Reforming of Glycerol to 1,3-Propanediol using Noble Metal Doped Ni/CeO2

Process Safety and Environmental Protection, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Deciphering the role of APTES in tuning the metal support interaction of NiO nanolayers over hierarchical zeolite 13X for CO2 methanation

Carbon Capture Science & Technology, Год журнала: 2025, Номер unknown, С. 100424 - 100424

Опубликована: Апрель 1, 2025

Язык: Английский

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Insight into Effects of Nickel Precursors on the Performance of Nickel Alumina Catalysts for Selective Hydrogenation of 2-Methylfuran

Опубликована: Янв. 1, 2025

Язык: Английский

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Supported-Single Nickel Atom Catalysts for the Methanation of Carbon Dioxide

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Synthesis of twenty-seven bimetallic catalysts consisting nickel and one nine different dopants (B, Co, Cu, Fe, Mg, Mn, Sn, V, Zn) supported on three metal oxides (Al2O3, CeO2, SiO2) is carried out via organometallic grafting. The are evaluated for their activity selectivity the CO2 methanation reaction at a feed ratio H2/CO2 4 300 °C in high-throughput flow reactor system. After situ pre-activation (500 H2), Ni/Co/CeO2 exhibited high conversion (84.3%) methane (99.6%). was characterized by high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), diffraction, H2-temperature-programmed reduction (H2-TPR), CO2-temperature-programmed desorption (CO2-TPD). HRTEM showed presence single Ni Co atoms ceria after pre-reduction 500 15 h. XPS determined that strong interaction between Ni, increased reduction, leading to charge transfer Ce created oxygen vacancies ceria. Nickel found be Ni2+ as-prepared material partially reduced cobalt activation H2 °C. DFT results show both cerium exhibit lower Bader charges system, confirming enhances through electronic interactions. This indicates cationic highly effective reaction. grafting technique efficient synthesizing with homogeneous dispersed species low loadings (0.16 wt % Ni-0.15 Co), which leads turnover frequency (up 248.7 h-1) durability methanation.

Язык: Английский

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Methanation of Carbon Dioxide on Skeletal Nickel Catalysts with Magnesium Fluoride Scaffolds

ChemCatChem, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

Abstract A new class of skeleton nickel catalysts with high activity and selectivity in the CO 2 methanation reaction has been developed, where magnesium fluoride plays a structure‐forming component. The precursor for catalyst is binary magnesium–nickel solid solution (MgF –NiF ), synthesized using precipitation method from nitrate, ammonium fluoride. Upon reduction at 500 °C hydrogen atmosphere, only reduced, while maintains its structure unchanged, forming structural framework nanoparticles. achieves specific surface area up to 87.2 m g −1 metal 3.06 . most active catalyst, containing 73.1 wt.% Ni can convert 73% methane, nearly 98% carbon balance 0.98 400 °C, under GHSV = 20,000 h Among factors contributing catalytic activity, metallic measured by chemisorption, content nickel, amount hydroxyl groups were identified. strong correlation was also observed composition determined XPS, including: (1) total content, (2) (3) oxygen (4) atomic Ni/Mg ratio. Surprisingly, no found between basicity as ‐TPD method.

Язык: Английский

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Charge transfer regulation of nickel oxide-nickel selenide hexagonal nanosheets with rich oxygen vacancies for efficient hydrogen peroxide electrosynthesis

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown, С. 138040 - 138040

Опубликована: Май 1, 2025

Язык: Английский

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Tailoring Ni-based poly-metallic catalysts for enhanced CO2 methanation through a Simplex-Centroid Mixture Design (SCMD)

Journal of CO2 Utilization, Год журнала: 2025, Номер 97, С. 103124 - 103124

Опубликована: Май 31, 2025

Язык: Английский

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