Mesoporous organo-inorganic hybrid materials as hydrogenation catalysts

AbstractThe paper concerns application of two types of organic materials – porous aromatic frameworks (PAFs) with diamond-like structure and the ordered mesoporous phenol-formaldehyde polymers (MPFs) – as supports for metal and metal sulfide nanoparticles. The obtained hybrid materials were tested in hydrogenation of various unsaturated and aromatic compounds. Ruthenium catalyst, based on PAF (Ru-PAF-30), possessed high activity in exhaustive hydrogenation of phenol into cyclohexanol with TOF value of 2700 h−1. Platinum catalyst, based on modified with sulfo-groups MPF (MPF-SO3H-Pt), was selective in semi-hydrogenation of terpenes, [α-terpinene, γ-terpinene, terpinolene, (s)-limonene]. Bimetallic Ni–W sulfide catalysts, prepared by in situ decomposition of [(n-Bu)4N]2Ni(WS4)2 within the pores of MPFs and PAFs, possessed high efficiency in hydrogenation-hydrocracking of naphthalenes as model substrates.

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Synthesis of Ni–W aromatic hydrocarbon hydrogenation catalysts by the ex situ and in situ decomposition of a precursor based on a dendrimer network

Petroleum Chemistry ◽

10.1134/s0965544116120112 ◽

2016 ◽

Vol 56 (12) ◽

pp. 1107-1113 ◽

Cited By ~ 4

Author(s):

I. A. Sizova ◽

A. B. Kulikov ◽

A. V. Zolotukhina ◽

S. I. Serdyukov ◽

A. L. Maksimov ◽

...

Keyword(s):

Aromatic Hydrocarbon ◽

Ex Situ ◽

Hydrogenation Catalysts ◽

In Situ Decomposition

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In situ growth of Ni-encapsulated and N-doped carbon nanotubes on N-doped ordered mesoporous carbon for high-efficiency triiodide reduction in dye-sensitized solar cells

Chemical Engineering Journal ◽

10.1016/j.cej.2020.124633 ◽

2020 ◽

Vol 390 ◽

pp. 124633 ◽

Cited By ~ 9

Author(s):

Ming Chen ◽

Leng-Leng Shao ◽

Xian-Wei Lv ◽

Gui-Chang Wang ◽

Wen-Qi Yang ◽

...

Keyword(s):

Carbon Nanotubes ◽

Solar Cells ◽

Mesoporous Carbon ◽

High Efficiency ◽

Dye Sensitized Solar Cells ◽

In Situ Growth ◽

Dye Sensitized ◽

Ordered Mesoporous ◽

Sensitized Solar Cells

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Nickel–molybdenum sulfide naphthalene hydrogenation catalysts synthesized by the in situ decomposition of oil-soluble precursors

Petroleum Chemistry ◽

10.1134/s096554411707009x ◽

2017 ◽

Vol 57 (7) ◽

pp. 595-599 ◽

Cited By ~ 7

Author(s):

I. A. Sizova ◽

A. L. Maksimov

Keyword(s):

Molybdenum Sulfide ◽

Hydrogenation Catalysts ◽

In Situ Decomposition

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One‐Step Template/Solvent‐Free Pyrolysis for in‐situ Immobilization of CoP Nanoparticles onto N and P co‐Doped Carbon Porous Nanosheets towards High‐efficiency Electrocatalytic Hydrogen Evolution

Chemistry - A European Journal ◽

10.1002/chem.202100612 ◽

2021 ◽

Author(s):

Xiaoxuan Feng ◽

Guangyao Zhou ◽

Linya Fang ◽

Huan Pang ◽

Jun Yang ◽

...

Keyword(s):

Hydrogen Evolution ◽

High Efficiency ◽

Solvent Free ◽

In Situ Immobilization ◽

Porous Nanosheets ◽

One Step ◽

Co Doped

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Influence of Casting Solvents on CO2/CH4 Separation Using Polysulfone Membranes

Membranes ◽

10.3390/membranes11040286 ◽

2021 ◽

Vol 11 (4) ◽

pp. 286

Author(s):

Roba M. Almuhtaseb ◽

Ahmed Awadallah-F ◽

Shaheen A. Al-Muhtaseb ◽

Majeda Khraisheh

Keyword(s):

High Efficiency ◽

In Situ Synthesis ◽

Separation Process ◽

Polymeric Membranes ◽

Gas Mixture ◽

Manufacturing Cost ◽

Binary Gas Mixture ◽

Maximum Permeability ◽

Polysulfone Membranes

Polysulfone membranes exhibit resistance to high temperature with low manufacturing cost and high efficiency in the separation process. The composition of gases is an important step that estimates the efficiency of separation in membranes. As membrane types are currently becoming in demand for CO2/CH4 segregation, polysulfone will be an advantageous alternative to have in further studies. Therefore, research is undertaken in this study to evaluate two solvents: chloroform (CF) and tetrahydrofuran (THF). These solvents are tested for casting polymeric membranes from polysulfone (PSF) to separate every single component from a binary gas mixture of CO2/CH4. In addition, the effect of gas pressure was conducted from 1 to 10 bar on the behavior of the permeability and selectivity. The results refer to the fact that the maximum permeability of CO2 and CH4 for THF is 62.32 and 2.06 barrer at 1 and 2 bars, respectively. Further, the maximum permeability of CF is 57.59 and 2.12 barrer at 1 and 2 bars, respectively. The outcome selectivity values are 48 and 36 for THF and CF at 1 bar, accordingly. Furthermore, the study declares that with the increase in pressure, the permeability and selectivity values drop for CF and THF. The performance for polysulfone (PSF) membrane that is manufactured with THF is superior to that of CF relative to the Robeson upper bound. Therefore, through the results, it can be deduced that the solvent during in-situ synthesis has a significant influence on the gas separation of a binary mixture of CO2/CH4.

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