The hydrogenation of aromatic-naphthalene with Ni<sub>2</sub>P/CNTs

Ruan, Minzhi; Guan, Jun; He, Duanwei; Meng, Tao; Zhang, Qiumin

doi:10.1039/c5ra05364a

Cited by 8 publications

(3 citation statements)

References 23 publications

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“…Recently, non-oxide supports (e.g., metal phosphides, silicides, sulfides, and carbides) with unique surface electronic structures have attracted much attention because of their high catalytic performance. [8,[31][32][33][34][35] Among them, molybdenum carbide exhibits noble metal (e.g., Pd and Pt)-like catalytic behavior in various reactions and holds great promise for the partial replacement of noble metal-based catalysts or even as their ultimate alternative, [36][37][38][39][40][41][42][43][44] for example, β-Mo 2 C is well suited for NAP hydrogenation. However, pure β-Mo 2 C is much less intrinsically active than noble metal catalysts and mainly affords tetralin.…”

Section: Introductionmentioning

confidence: 99%

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Liu

Chen

et al. 2022

Adv Funct Materials

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Although the hydrogenation of aromatics is important for the processing of fossil fuels and biofuels, it typically requires costly (e.g., noble metal‐based) catalysts and exhibits unsatisfactory selectivity. Herein, flake‐like nanocrystalline molybdenum carbide (α‐MoC) is surface‐engineered via Pd doping, and the synergy between the in‐situ generated Mo vacancies and doped Pd species is shown to promote the selective hydrogenation of naphthalene to decalin. Experimental and theoretical evidence reveal that this enhanced performance is due to the optimization of naphthalene adsorption energy and the establishment of a unique surface structure due to (i) surface environment modulation, (ii) the adjustment of electron density around Mo atoms, and (iii) the change in the strength of Mo‐H bonding caused by d‐band center optimization. Benefiting from the unique surface structure, the obtained optimum 0.5% Pd‐α‐MoC catalyst exhibits excellent performance. The developed strategy is successfully used to fabricate other noble metal (Pt, Ru)‐doped α‐MoC catalysts, thus holding promise as a universal method for the rational design of high‐performance metal carbide‐based hydrogenation catalysts.

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Section: Introductionmentioning

confidence: 99%

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Liu

Chen

et al. 2022

Adv Funct Materials

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“…Among numerous HDO catalysts, nickel phosphide has high catalytic activity for HDO of phenolic model compounds and even the actual pyrolysis oil and therefore attracted widespread interests . Various materials have been employed as the supports of nickel phosphides, such as metal oxide,, carbonaceous material,, and zeolites –. The neutral SiO 2 is superior to the acidic zeolite HZSM‐5 as the support of Ni 2 P in the HDO reaction in the previous report .…”

Section: Figurementioning

confidence: 97%

Nickel Phosphides Supported on HZSM-5 for Catalytic Hydrodeoxygenation of Eugenol: Effect of Phosphorus Content

Tang

Sun

et al. 2017

ChemistrySelect

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Nickel phosphides supported on HZSM‐5 zeolite with different initial P/Ni molar ratios were prepared for catalytic hydrodeoxygenation (HDO) of eugenol to produce hydrocarbons. When P/Ni<0.5, the increase of P content gave smaller and more uniform particles which was helpful for hydrogenation of aromatic ring, while the total acid sites of the catalyst decreased due to the coverage of more acid sites of HZSM‐5 by adding P which was unfavourable for the removal of oxygen. At P/Ni=0.5, the active phase supported on HZSM‐5 was mainly Ni3P with the smallest average particle size and minimum amount of acid sites which could account for the best hydrogenation activity and the lowest selectivity of hydrocarbons, respectively. Further increasing the P/Ni ratio up to 1 and 2, the active phase became Ni2P and a lot of nonuniform Ni2P nanorod crystals appeared on and out of the support HZSM‐5 which caused a sharp drop in the hydrogenation activity of the catalyst. For a combination of hydrogenation and deoxygenation considerations, The P/Ni=0.25 is the best ratio for nickel phosphides supported on HZSM‐5 zeolite to HDO of lignin‐related phenols.

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“…The conjugation effect of CNTs is remarkable. Besides, CNTs, as onedimensional nanomaterials, exhibit fascinating properties including excellent mechanical strength, outstanding thermal conductivity, ultrahigh electrical capacity, and thermal stability [92,93]. Due to these charming properties, CNTs have been widely adopted in substituting or replenishing traditional nanofillers to prepare composites with different functions.…”

Section: Metal Conductive Particles As Fillersmentioning

confidence: 99%

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

Zhan

Wang

et al. 2018

International Journal of Polymer Science

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Flexible polymer-based composites exhibiting high dielectric constant as well as low dielectric loss have been intensively investigated for their potential utilization in electronics and electricity industry and energy storage. Resulting from the polar -CN on the side chain, polyarylene ether nitrile (PEN) shows relatively high dielectric constant which has been extensively investigated as one of the hot spots as dielectric materials. However, the dielectric constant of PEN is still much lower than the ceramic dielectrics such as BaTiO 3 , TiO 2 , and Al 2 O 3 . In this review, recent and in-progress advancements in the designing and preparing strategies to obtain high-k PEN-based nanocomposites are summarized. According to the types of the added fillers, the effects of organic fillers, dielectric ceramic fillers, and conductive fillers on electric properties of PEN-based composites are investigated. In addition, other factors including the structures and sizes of the additive, the compatibility between the additive agent and the PEN, and the interface which affects the dielectric properties of the obtained composite materials are investigated. Finally, challenges facing in the design of more effective strategies for the high-k PEN-based dielectric materials are discussed.

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The hydrogenation of aromatic-naphthalene with Ni₂P/CNTs

Cited by 8 publications

References 23 publications

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Nickel Phosphides Supported on HZSM-5 for Catalytic Hydrodeoxygenation of Eugenol: Effect of Phosphorus Content

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

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The hydrogenation of aromatic-naphthalene with Ni2P/CNTs

Cited by 8 publications

References 23 publications

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Selective Hydrogenation of Naphthalene to Decalin Over Surface‐Engineered α‐MoC Based on Synergy between Pd Doping and Mo Vacancy Generation

Nickel Phosphides Supported on HZSM-5 for Catalytic Hydrodeoxygenation of Eugenol: Effect of Phosphorus Content

Polyarylene Ether Nitrile-Based High-k Composites for Dielectric Applications

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Product

Resources

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The hydrogenation of aromatic-naphthalene with Ni₂P/CNTs