Renaissance of Strong Metal–Support Interactions

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(4), С. 2290 - 2307

Опубликована: Янв. 18, 2024

Strong metal–support interactions (SMSIs) have emerged as a significant and cutting-edge area of research in heterogeneous catalysis. They play crucial roles modifying the chemisorption properties, interfacial structure, electronic characteristics supported metals, thereby exerting profound influence on catalytic properties. This Perspective aims to provide comprehensive summary latest advancements insights into SMSIs, with focus state-of-the-art situ/operando characterization techniques. overview also identifies innovative designs applications new types SMSI systems chemistry highlights their pivotal role enhancing performance, selectivity, stability specific cases. Particularly notable is discovery between active metals metal carbides, which opens up era field SMSI. Additionally, strong atomically dispersed supports are discussed, an emphasis effects support. The chemical nature its underlying mechanisms elaborated upon. It evident that modification has become powerful tool for performance various applications.

Язык: Английский

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Nature of metal-support interaction for metal catalysts on oxide supports

Science, Год журнала: 2024, Номер 386(6724), С. 915 - 920

Опубликована: Ноя. 21, 2024

The metal-support interaction is one of the most important pillars in heterogeneous catalysis, but developing a fundamental theory has been challenging because intricate interfaces. Based on experimental ‎data, interpretable machine learning, theoretical derivation, and first-principles simulations, we established ‎general metal-oxide interactions grounded ‎metal-metal metal-oxygen interactions. applies to metal nanoparticles atoms oxide supports films supports. We found that for late-transition catalysts, metal-metal dominated support effects suboxide encapsulation over nanoparticles. A principle strong occurrence formulated substantiated by extensive ‎experiments including 10 metals 16 ‎oxides. valuable insights revealed (strong) advance interfacial design supported catalysts.

Язык: Английский

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Stabilizing the oxidation state of catalysts for effective electrochemical carbon dioxide conversion

Chemical Society Reviews, Год журнала: 2024, Номер 53(12), С. 6295 - 6321

Опубликована: Янв. 1, 2024

Developing sophisticated strategies to stabilize oxidative metal catalysts based on the correlation between dynamic oxidation state and product profile is favorable for efficient electrochemical CO 2 conversion.

Язык: Английский

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Engineering metal-support interaction to construct catalytic interfaces and redisperse metal nanoparticles

Chem Catalysis, Год журнала: 2023, Номер 3(10), С. 100768 - 100768

Опубликована: Окт. 1, 2023

Язык: Английский

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Tuning the CO₂ Hydrogenation Activity via Regulating the Strong Metal–Support Interactions of the Ni/Sm₂O₃ Catalyst

ACS Catalysis, Год журнала: 2024, Номер 14(5), С. 3158 - 3168

Опубликована: Фев. 14, 2024

Strong metal–support interactions (SMSIs), characterized by the encapsulation of metal nanoparticles support oxide, have a significant impact on various heterogeneous catalytic reactions. In this study, we present our investigations tuning performance CO2 hydrogenation through regulating SMSI in Ni/Sm2O3 catalyst. Our results demonstrate that complete Ni with amorphous Sm2O3, achieved H2 reduction, leads to nearly full selectivity CO. contrast, controlled situ thermal postannealing an H2/CO2/N2 mixture, encapsulated Sm2O3 layer can be partially removed and crystallized, as revealed atomic-resolution transmission electron microscopy analyses, which enhanced activity toward CH4. addition, prolonged durations completely remove overlayer, causing decline methanation activity. These findings underscore critical role effect offer valuable insights for produce targeted value-added chemicals.

Язык: Английский

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Using In‐situ Transmission Electron Microscopy to Study Strong Metal‐Support Interactions in Heterogeneous Catalysis

Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown

Опубликована: Июль 25, 2024

Precisely controlling the microstructure of supported metal catalysts and regulating metal-support interactions at atomic level are essential for achieving highly efficient heterogeneous catalysts. Strong interaction (SMSI) not only stabilizes nanoparticles improves their resistance to sintering but also modulates electrical between species support, optimizing catalytic activity selectivity. Therefore, understating formation mechanism SMSI its dynamic evolution during chemical reaction scale is crucial guiding structural design performance optimization Recent advancements in situ transmission electron microscopy (TEM) have shed new light on these complex phenomena, providing deeper insights into dynamics. Here, research progress TEM investigation catalysis systematically reviewed, focusing dynamics, reactions, regulation methods SMSI. The significant advantages technologies highlighted. Moreover, challenges probable development paths studies provided.

Язык: Английский

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Simultaneously Boosting Catalyst Activity and Stability by Construction of Low-Temperature Strong Metal−Support Interaction

ACS Catalysis, Год журнала: 2024, Номер 14(16)

Опубликована: Авг. 6, 2024

The strong metal−support interaction (SMSI) is of great importance for supported metal catalysts in heterogeneous catalysis. Typically, the occurrence SMSI beneficial to a catalyst's stability while detrimental its catalytic activity because high-temperature treatment required construction and excessive encapsulation nanoparticles by support caused often result significant decrease number active sites. To solve this problem, work reports low-temperature on Pt/TiO2 induced sodium borohydride reduction which accompanied weak degree Pt nanoparticles. All characteristics are consistent with those classical SMSI, key (weak) at room temperature. It was found that strategy general, can be expanded other TiO2-supported metals such as Au/TiO2, inducing condition extended methods reduce low temperatures, decomposition hydrazine hydrate. Owing both reusability nitrobenzene hydrogenation were significantly improved. This discovery supplies facile under mild conditions provides way design reusable improved activity.

Язык: Английский

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Modulating the strong metal-support interactions by regulating the chemical microenvironment of Pt confined in MOFs for low temperature hydrogenation of DCPD

Chemical Engineering Journal, Год журнала: 2023, Номер 479, С. 147601 - 147601

Опубликована: Дек. 6, 2023

Язык: Английский

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Multi-level FeCo/N-doped carbon nanosheet for peroxymonosulfate oxidation and sterilization inactivation

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 661, С. 840 - 852

Опубликована: Фев. 5, 2024

Язык: Английский

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Effect of Metal Oxides (CeO₂, ZnO, TiO₂, and Al₂O₃) as the Support for Silver-Supported Catalysts on the Catalytic Oxidation of Diesel Particulate Matter

ACS Omega, Год журнала: 2024, Номер 9(17), С. 19282 - 19294

Опубликована: Апрель 19, 2024

This work presented the influence of metal oxides as support for silver-supported catalysts on catalytic oxidation diesel particulate matter (DPM). The supports selected to be used in this were CeO2 (reducible), ZnO (semiconductor), TiO2 (reducible and semiconductor), Al2O3 (acidic). properties synthesized investigated using XRD, TEM, H2-TPR, XPS techniques. DPM activity was performed TGA method. Different states silver (e.g., Ag° Ag+) formed with different concentrations affected performance oxidation. Ag2O lattice oxygen, which mainly generated by Ag/ZnO Ag/CeO2, responsible combusting VOCs. metallic (Ag°) primarily Ag/Al2O3 Ag/TiO2 main component promoting soot combustion. Contact between catalyst had a minor effect VOC but significantly activity.

Язык: Английский

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