Dynamics-driven tailoring of sub-nanometric Pt-Ni bimetals confined in hierarchical zeolite for catalytic hydrodeoxygenation

Tian, Yajie; Guo, Longhui; Qiao, Congzhen; Sun, Zixu; Yamauchi, Yusuke; Liu, Shude

doi:10.1016/j.apcatb.2023.122945

Cited by 29 publications

(4 citation statements)

References 71 publications

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“…The resulting catalyst provided an even higher yield of cyclohexane (95%) in the same reaction due to the improved substrate diffusion. 150 Sulfide anions can also protect transition metals during the hydrothermal crystallization of zeolites, yielding encapsulated subnanometric FeS x clusters as evidenced by EXAFS. 151 For other metals the use of this approach leads to the formation of metal silicates (Ni, Co) or a bulk sulphide phase (Zn).…”

Section: One-pot Synthesismentioning

confidence: 99%

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State-of-the-art strategies for the synthesis of zeolite-encapsulated subnanometric metal clusters

Konnov,

Bruter,

Pavlov

et al. 2024

Inorg. Chem. Front.

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Section: One-pot Synthesismentioning

confidence: 99%

“…The resulting catalyst provided an even higher yield of cyclohexane (95%) in the same reaction due to the improved substrate diffusion. 150…”

Section: Strategies For the Synthesis Of Zeolite-encapsulated Subnano...mentioning

confidence: 99%

State-of-the-art strategies for the synthesis of zeolite-encapsulated subnanometric metal clusters

Konnov,

Bruter,

Pavlov

et al. 2024

Inorg. Chem. Front.

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“…6−8 As a typical class of metal−acid bifunctional catalysts, zeolite-supported metal catalysts find extensive use in various industrial reactions, 3,9,10 such as hydrocracking, 11 hydroalkylation, 12,13 isomerization, 14−16 and hydrogenation/dehydrogenation. 17,18 In general, the metal nanoparticles could be supported on zeolites by impregnation or ion exchange methods. However, the metal ions cannot fully penetrate micropores and aggregate easily on the outer surface of the zeolite, leading to large and nonuniform metal nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

“…Multifunctional catalysts play a pivotal role in various chemical processes due to their ability to perform multiple functions simultaneously or in a sequential manner. − Bifunctional catalysts, combining metal and acid sites, are commonly employed to facilitate sequential reactions due to their ability to catalyze a broad but specific set of reactions. − As a typical class of metal–acid bifunctional catalysts, zeolite-supported metal catalysts find extensive use in various industrial reactions, ,, such as hydrocracking, hydroalkylation, , isomerization, − and hydrogenation/dehydrogenation. , In general, the metal nanoparticles could be supported on zeolites by impregnation or ion exchange methods. However, the metal ions cannot fully penetrate micropores and aggregate easily on the outer surface of the zeolite, leading to large and nonuniform metal nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Construction of Metal/Zeolite Hybrid Nanoframe Reactors via in-Situ-Kinetics Transformations

Tian,

Chen,

Yang

et al. 2024

ACS Cent. Sci.

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Metal/zeolite hybrid nanoframes featuring highly accessible compartmental environments, abundant heterogeneous interfaces, and diverse chemical compositions are expected to possess significant potential for heterogeneous catalysis, yet their general synthetic methodology has not yet been established. In this study, we developed a two-step in-situ-kinetics transformation approach to prepare metal/ZSM-5 hybrid nanoframes with exceptionally open nanostructures, tunable metal compositions, and abundant accessible active sites. Initially, the process involved the formation of singlecrystalline ZSM-5 nanoframes through an anisotropic etching and recrystallization kinetic transformation process. Subsequently, through an in situ reaction of the Ni 2+ ions and the silica species etched from ZSM-5 nanoframes, layered nickel silicate emerged on both the inner and outer surfaces of the zeolite nanoframes. Upon reduction under a hydrogen atmosphere, well-dispersed Ni nanoparticles were produced and immobilized onto the ZSM-5 nanoframes. Strikingly, this strategy can be extended to immobilize a variety of ultrasmall monometallic and bimetallic alloy nanoparticles on zeolite nanoframes. Benefiting from the structural and compositional advantages, the resultant hybrid nanoframes with a high loading of discrete Ni nanoparticles exhibited enhanced performance in the hydrodeoxygenation of stearic acid into liquid fuels. Overall, the methodology shares fresh insights into the rational construction of intricate frame-like metal/zeolite hybrid nanoreactors for many potential catalytic applications.

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Sustainable Liquid‐Organic‐Hydrogen‐Carrier‐Based Hydrogen‐Storage Technology Using Crude or Waste Feedstock/Hydrogen

Kim,

Yoon,

Kim

et al. 2024

Adv Energy and Sustain Res

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For liquid organic hydrogen carrier (LOHC) technology to be competitive with other H2‐storage methods, it is crucial to reduce the cost of LOHC materials occupying the high proportion of the embodied energy required for system implementation. Promising approaches are to convert crude or waste feedstock into LOHC materials and to utilize crude hydrogen sources obtained from various routes. Thus, in this review, the state‐of‐the‐art advances in sustainable LOHC‐based hydrogen storage using crude or waste feedstock, associated with their conversion into LOHC materials, and coupling crude hydrogen with LOHC system to obtain high‐purity H2 without separation and purification are highlighted. Petroleum sources like light cycle oil and pyrolysis fuel oil are used after liquid–liquid extraction, combined distillation/hydroprocessing, and one‐pot hydrotreating–hydrocracking. In case of converting renewable resources (e.g., biomass and plastic waste), depolymerization followed by hydrodeoxygenation is an effective approach. To utilize crude hydrogen sources for hydrogen storage, catalysts should be designed and synthesized toward activating LOHC hydrogenation reaction at lower temperatures, along with high CO resistance. Consequently, this context provides guidance for the development of LOHC technology to accelerate its commercialization.

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Dynamics-driven tailoring of sub-nanometric Pt-Ni bimetals confined in hierarchical zeolite for catalytic hydrodeoxygenation

Cited by 29 publications

References 71 publications

State-of-the-art strategies for the synthesis of zeolite-encapsulated subnanometric metal clusters

State-of-the-art strategies for the synthesis of zeolite-encapsulated subnanometric metal clusters

Construction of Metal/Zeolite Hybrid Nanoframe Reactors via in-Situ-Kinetics Transformations

Sustainable Liquid‐Organic‐Hydrogen‐Carrier‐Based Hydrogen‐Storage Technology Using Crude or Waste Feedstock/Hydrogen

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