Recommended strategies for quantifying oxygen vacancies with X-ray photoelectron spectroscopy

Journal of the European Ceramic Society, Journal Year: 2024, Volume and Issue: 44(15), P. 116709 - 116709

Published: July 1, 2024

Oxygen vacancies play a crucial role in shaping the properties of metal oxides for diverse applications such as catalysis, ferroelectricity, magnetism, and superconductivity. Although X-ray photoelectron spectroscopy (XPS) is robust tool, accurate quantification oxygen remains challenge. A common mistake XPS analysis associating 531–532 eV feature O 1s spectra with vacancies. This incorrect because vacant site does not emit photoelectrons therefore generate direct spectral feature. To address this issue, we propose three alternative approaches vacancy through indirect features: (1) quantifying cation valence state variations, (2) assessing nonstoichiometry via normalized intensity, (3) evaluating Fermi energy changes from electrostatic shifts binding energy. The recommended strategies will facilitate precise vacancies, promoting future studies understanding manipulating advanced material development.

Language: Английский

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Development of highly stable Ni-doped zeolitic imidazole framework (ZIF-67) based catalyst for CO2 methanation reaction

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 57, P. 1474 - 1485

Published: Jan. 21, 2024

Language: Английский

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Improved photocatalytic performance of acetaldehyde degradation via crystal plane regulation on truncated octahedral CeO2

Rare Metals, Journal Year: 2024, Volume and Issue: 43(5), P. 2026 - 2038

Published: Feb. 3, 2024

Language: Английский

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Comprehensive review of nickel-based catalysts advancements for CO2 methanation

Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 207, P. 114926 - 114926

Published: Sept. 12, 2024

Language: Английский

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

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(1)

Published: Jan. 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.

Language: Английский

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Fabrication of spiral-structured Ni–Ce catalyst supported on natural kaolin-derived metakaolin for CO2 methanation

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 103, P. 513 - 527

Published: Jan. 21, 2025

Language: Английский

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A state-of-the-art review on waste plastics-derived aviation fuel: Unveiling the heterogeneous catalytic systems and techno-economy feasibility of catalytic pyrolysis

Energy Conversion and Management, Journal Year: 2022, Volume and Issue: 274, P. 116433 - 116433

Published: Nov. 12, 2022

Language: Английский

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S-scheme CeO2-x/AgFeO2/Ag photocatalysts with impressive activity in degradation of different antibiotics under visible light

Surfaces and Interfaces, Journal Year: 2023, Volume and Issue: 39, P. 102937 - 102937

Published: May 7, 2023

Language: Английский

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Ni-noble metal bimetallic catalysts for improved low temperature CO2 methanation

Applied Surface Science, Journal Year: 2023, Volume and Issue: 646, P. 158945 - 158945

Published: Nov. 19, 2023

Language: Английский

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Functionalization and applications of the versatile CeO2 nanoparticles: A review

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 163, P. 112359 - 112359

Published: March 28, 2024

Language: Английский

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