High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

Feng, Li; Liang, Jinrong; Zhu, Weiping; Song, Hua; Wang, Keliang; Li, Cuiqin

doi:10.3390/catal7070202

Cited by 4 publications

(3 citation statements)

References 27 publications

(47 reference statements)

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“…in addition to support and size effects (see Figures 9-11). [145][146][147][148][149][150][151][152][153][154][155] Rarely, metal-carbides was studied for HDS in the supported Mo 2 C/SBA-15 by varying the Mo-content. The synthesis strategy involves carburization of oxide of Mo to form Mo 2 C of small particles and the active phase is similar to sulfided transition metals of molybdenum with HDs activity.…”

Section: Active Phasementioning

confidence: 99%

Hierarchical Hybrid Supports and Synthesis Strategies for Hydrodesulfurization of Recalcitrance Organosulfur Compounds

Ganiyu

2021

Chemistry An Asian Journal

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It is undisputed that there is a paradigm shift in the global trend of crude oil towards being more sour and heavier than usual light sources. Consequently, the hydrotreating activity becomes a bottleneck with high content of S, N, metals and other impurities than expected. On the other hand, the price of petroleum products lately witnessed instability and fell to the lowest average price (<USD 20) in recent times. In the same vein, the regulation to control the emission of toxic compounds in the atmosphere become stricter as promulgated by various policymakers. In this sense, robust hydrotreating catalysts with characteristics efficient catalytic activity, selectivity and stability are highly desirable. Recently, different approaches have been used to improve and cushion the unprecedented effect emanated from economic, social and environmental challenges posed by heavy and sour crude sources, price instability of the refined products and regulation to lower the sulfur to minimum level or zero parts per millions (ppm). Importantly, the role of support in catalysis cannot be over emphasized, whilst the surface area and porosity, mechanical and thermal stability, dispersion of active metals, acidity/basicity have been greatly improved, the increased activity, stability and selectivity has been observed significantly. In this review, hybrid supports based on aluminosilicates (zeolitic types) and other notable supports from recent literatures were explored and discussed for Ni(Co)Mo(W) supported catalysts for hydrodesulfurization (HDS) activity of heavy organosulfur molecules. The emphasis on the hybrid supports’ varied characteristics for HDS of organosulfur molecules, where there are necessities for fast diffusion of reactants and products, better dispersion of MoS2 crystallites, high surface area and pore volume, and increased acidity of the catalysts are greatly emphasized. Furthermore, the progress made so far on different HDS active phases viz. noble metals, metal phosphides, intermetallic silicides, carbides and iron‐zinc are highlighted in this write‐up, irrespective of the support composition in the supported catalysts formulations. The need for application of predictive tools, like machine learning (ML) in the design and development of HDS catalysts, and performance evaluation of HDS activity towards achieving better catalytic operation was briefly highlighted. Finally, the review will serve as a summary of scientific efforts in this regards and bridge a gap for the newcomers to investigate the topic in a better way through proper selection and efficient catalysts design.

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Section: Active Phasementioning

confidence: 99%

Hierarchical Hybrid Supports and Synthesis Strategies for Hydrodesulfurization of Recalcitrance Organosulfur Compounds

Ganiyu

2021

Chemistry An Asian Journal

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“…Ni-based alloys have attracted increasing interest in catalytic fields in view of their combined advantages, such as, high corrosion resistance, excellent electrical conductivity, and high catalytic activity [1,2]. A diverse range of Nibased alloys have been designed and applied in catalyzing hydrogen evolution reaction [3,4], methanol electrooxidation [5], hydrodesulfurization [6,7], hydrodenitrogenation [8], and thermal decomposition of ammonium perchlorate [9]. Due to the unique short-range ordered and long-range disordered atomic arrangement, amorphous Ni-based alloys possess unique chemical and structural properties, including broadly adjustable composition, structural homogeneity, and high concentration of coordinatively unsaturated site [10,11], which make it superior catalytic materials in environment remediation and energy storage when compared with its crystalline counterparts [4,12,13].…”

Section: Introductionmentioning

confidence: 99%

Amorphous Ni-P nanoparticles anchoring on nickel foam as an efficient integrated anode for glucose sensing and oxygen evolution

Wang

Feng

et al. 2020

Nanotechnology

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Ever-growing efforts have been devoted to developing cost-effective and earth-abundant electrocatalysts with high-performance in biosensing and energy energy conversion. In this work, amorphous nickel-phosphorus (Ni-P) nanoparticles anchoring on Ni foam (Ni-P/NF) were prepared through a facile electroless deposition approach. The morphology and composition were characterized by scanning electron microscopy, x-ray diffraction and x-ray photoelectron spectroscopy. As an integrated anode, Ni-P/NF exhibits high performance towards glucose electrochemical sensing, with a high sensitivity of 13.89 mA mM−1 cm−2, a low detection limit of 1 µM, a wide detection ranges from 2 µM to 0.54 mM, and a quick response (<10 s), as well as good selectivity and reliability for real sample analysis in human serum. In addition to electrocatalytic glucose oxidation, Ni-P/NF shows remarkable catalytic activity towards oxygen evolution reaction (OER) in alkaline solution and it only needs an overpotential of 360 mV to afford 50 mA cm−2. Moreover, Ni-P/NF shows excellent durability under alkaline OER condition. All these results demonstrate Ni-P/NF as highly efficient integrated anode in both biosensing and energy conversion.

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“…The catalyst support plays an important role in the distribution active phase and determining catalytic performance. For the HDS catalyst, the most frequently used support is alumina [4][5][6][7][8] owing to its tunable and stable mechanical characteristics and low cost, yet conventional alumina interacts strongly with metal oxide precursors, which may affect their sulfidity [9]. Until recently, the exact role of how oxide affects the activities of catalysts is still not entirely resolved [10].…”

Section: Introductionmentioning

confidence: 99%

Management of γ-Alumina with High-Efficient {111} External Surfaces for HDS Reactions

Liang

Sun

et al. 2020

Catalysts

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A series of γ-alumina samples with different exposure ratio of {111} facet were synthesized by an efficient hydrothermal method via adjusting the pH value of the gel precursor. The nanorod alumina supported catalyst with the highest exposure of {111} facet exhibited the best hydrodesulfurization (HDS) activities of both thiophene and dibenzothiophene (DBT). Characterization of the sulfided NiMo/Al2O3 catalyst with preferential exposure of {111} facet showed that the MoS2 nano slabs were inclined to distribute in the direction along the edges of alumina nanocrystal in reduced stacking layers. The selective exposure of {111} facet played a decisive role in obtaining alumina-supported HDS catalysts with improved intrinsic activity. This work helps to better understand the relationship between catalytic properties and varied support surfaces, which demonstrate a proper design of the catalyst support morphology on the facet-level.

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High Active Zn/Mg-Modified Ni–P/Al2O3 Catalysts Derived from ZnMgNiAl Layered Double Hydroxides for Hydrodesulfurization of Dibenzothiophene

Cited by 4 publications

References 27 publications

Hierarchical Hybrid Supports and Synthesis Strategies for Hydrodesulfurization of Recalcitrance Organosulfur Compounds

Hierarchical Hybrid Supports and Synthesis Strategies for Hydrodesulfurization of Recalcitrance Organosulfur Compounds

Amorphous Ni-P nanoparticles anchoring on nickel foam as an efficient integrated anode for glucose sensing and oxygen evolution

Management of γ-Alumina with High-Efficient {111} External Surfaces for HDS Reactions

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