Journal ArticleDOI
Advances in Catalytic Applications of Zeolite-Supported Metal Catalysts.
TLDR
A comprehensive review of the state-of-the-art achievements in catalytic applications of zeolite-supported metal catalysts is presented in this paper, mainly focusing on hydrogenation reactions.Abstract:
Zeolites possessing large specific surface areas, ordered micropores, and adjustable acidity/basicity have emerged as ideal supports to immobilize metal species with small sizes and high dispersities. In recent years, the zeolite-supported metal catalysts have been widely used in diverse catalytic processes, showing excellent activity, superior thermal/hydrothermal stability, and unique shape-selectivity. In this review, a comprehensive summary of the state-of-the-art achievements in catalytic applications of zeolite-supported metal catalysts are presented for important heterogeneous catalytic processes in the last five years, mainly including 1) the hydrogenation reactions (e.g., CO/CO2 hydrogenation, hydrogenation of unsaturated compounds, and hydrogenation of nitrogenous compounds); 2) dehydrogenation reactions (e.g., alkane dehydrogenation and dehydrogenation of chemical hydrogen storage materials); 3) oxidation reactions (e.g., CO oxidation, methane oxidation, and alkene epoxidation); and 4) other reactions (e.g., hydroisomerization reaction and selective catalytic reduction of NOx with ammonia reaction). Finally, some current limitations and future perspectives on the challenge and opportunity for this subject are pointed out. It is believed that this review will inspire more innovative research on the synthesis and catalysis of zeolite-supported metal catalysts and promote their future developments to meet the emerging demands for practical applications.read more
Citations
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Journal ArticleDOI
Metal Sites in Zeolites: Synthesis, Characterization, and Catalysis.
Qiang Zhang,Shiqin Gao,Jihong Yu +2 more
TL;DR: The metal-in-zeolite composites as mentioned in this paper have experienced rapid development in heterogeneous catalysis, owing to the combination of the merits of both active metal sites and zeolite intrinsic properties.
Journal ArticleDOI
Single Atom Catalysts for Selective Methane Oxidation to Oxygenates.
TL;DR: In this article , a review of single atom catalysts (SACs) for the selective oxidation of CH4 to C1-2 liquid oxygenates is presented, where the chemical nature of catalytic sites, effects of metal-support interaction, and stabilization of intermediate species on catalysts to minimize overoxidation are thoroughly discussed with a forward-looking perspective.
Journal ArticleDOI
Enhanced Catalytic Performance through In Situ Encapsulation of Ultrafine Ru Clusters within a High-Aluminum Zeolite
Jiang-Ling Yang,Ying Juan He,Jiang He,Yuanshuai Liu,Huawei Geng,Shaohua Chen,Lu Lin,M. Liu,Tiehong Chen,Qike Jiang,Bert M. Weckhuysen,Wenhao Luo,Zhijie Wu +12 more
TL;DR: In this paper , Ru@H-ZSM-5 showed an enhanced activity and stability for the crucial hydrodeoxygenation (HDO) of phenol to cyclohexane in biomass valorization.
Journal ArticleDOI
Synergistic catalysis of Ru single-atoms and zeolite boosts high-efficiency hydrogen storage
TL;DR: In this paper , a Ru single atom supported on *BEA zeolite catalyst (Ru(Na)/Beta), with the assistance of hydrogen spillover, was used to accelerate the hydrogenation of N-ethyl carbazole (NEC), N-propylcarbazole(NPC), and 2-methylindole (2-MID).
Journal ArticleDOI
Unveiling Secondary-Ion-Promoted Catalytic Properties of Cu-SSZ-13 Zeolites for Selective Catalytic Reduction of NO<i><sub>x</sub></i>
TL;DR: In this paper , a series of Cu-Sm-SSZ-13 zeolites have been prepared by ion-exchanging Sm ions followed by Cu ions, which exhibit superior NH3-SCR performance.
References
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Journal ArticleDOI
Impact of carrier acidity on the conversion of syngas to higher alcohols over zeolite-supported copper-iron catalysts
Ho Ting Luk,Cecilia Mondelli,Sharon Mitchell,D. Curulla Ferre,Joseph A. Stewart,J. Pérez–Ramírez +5 more
TL;DR: In this article, the impact of acidity and porosity of MFI zeolite carriers on the properties of CuFe catalysts was investigated, and significant changes in activity and product distribution were observed at higher concentrations of Bronsted acid sites over materials featuring similarly sized and distributed metal particles, whereas a hierarchical carrier structure did not produce relevant alterations.
Journal ArticleDOI
Catalytic epoxidation of cyclic alkenes with air over CoOx/zeolite heterogeneous catalysts
TL;DR: The supported CoO x /zeolites have been prepared and applied for the epoxidation of cyclic alkenes with air as discussed by the authors, and the catalysts are characterized by powder X-ray diffraction (XRD), ultraviolet-visible spectroscopy (UV-vis) and scanning electron microscope (SEM).
Journal ArticleDOI
Development of a highly sensitive detection method for TTX based on a magnetic bead-aptamer competition system under triple cycle amplification.
Man Zhang,Yu Wang,Pian Wu,Weiya Wang,Yaqian Cheng,Lei Huang,Bai Jialei,Yuan Peng,Baoan Ning,Zhixian Gao,Baolin Liu +10 more
TL;DR: An assay that relies on aptamer and isothermal amplification for the tetrodotoxin (TTX)detection that is highly sensitive, reliable and has a good specificity is established and provides a better alternative to the standard method for quantitative detection of TTX.
Journal ArticleDOI
The synthesis of new coke-resistant support and its application in propane dehydrogenation to propene
TL;DR: In this paper, a hierarchical-porous ZSM-5 support (ZQ) has been synthesized to improve the catalytic performance of a PtSn-based catalyst in the propane dehydrogenation reaction.
Journal ArticleDOI
Accelerated Construction of High-Silica RHO and CHA Zeolites via Interzeolite Transformation and Their NH3–SCR Performances after Copper Exchange
Quanli Ke,Quanli Ke,Tianjun Sun,Hao Cheng,Xiaoli Wei,Xiaoli Wei,Ya Guo,Ya Guo,Zhao Shengsheng,Shu Zeng,Shu Zeng,Shudong Wang +11 more
TL;DR: In this paper, a rapid and selective synthesis of high-silica zeolites, including topologies of RHO and CHA, has been realized by interzeolite transformation process.