نتایج جستجو برای: mesopore

تعداد نتایج: 405  

Journal: :Open Journal of Civil Engineering 2022

Sugar cane molasses has proved cohesive and excellent performance on soil aggregates (fine particles). However, the microstructure of consolidated by is not yet subjected to research. The analysis results sample without (0%) samples at 8%, 12%, 16% show that acts structure clayey fine developing its airy matrix type (sample a qualified type, more solid. Consolidated molasses). We also observe p...

Journal: :Molecular Simulation 2021

Mass transport under confinement is at the heart of all processes employing functionalised mesoporous silica materials, such as liquid chromatography, heterogeneous catalysis, and gas adsorption. Molecular simulation studies mass in settings require pore models that replicate geometry, dimensions, chemical structure a surface-functionalised mesopore. We present software tool facilitates rapid m...

Journal: :Microporous and Mesoporous Materials 2021

Hydrothermal synthesis of ZSM-5 zeolites with different Si/Al ratios was conducted by using a microwave-assisted heating method. Their characteristics, such as morphology, porosity, acidity, and the catalytic performance for cracking reaction military jet fuel JP-8, were compared obtained via conventional The method contributed to bigger crystal sizes zeolite well broader mesopore size distribu...

Journal: :Chemcatchem 2021

The Cover Feature shows asymmetric catalysis on mesoporous silica, which is selectively functionalized in a spatially controlled manner with highly selective complex catalysts the mesopore walls. In their Full Paper, A.-K. Beurer et al. describe new method, ensures special control step that exclusively surface clickable linker. This makes it possible to study unambiguously confinement effects d...

Journal: :Russian Journal of Physical Chemistry A 2021

Pulse field gradient NMR technique was used to determine self-diffusivity of heptane and pentadecane at room temperature for microporous catalysts, both as powders shaped with a binder extrudates. The results showed that diffusivities increased increasing specific surface area, micro- mesopore volume the studied catalysts. presence Bindzil together H-Beta-25 decreased hydrocarbon diffusivities....

Journal: :Catalysts 2023

Developing highly selective and efficient bifunctional catalysts is an important issue for the hydroisomerization of long-chain n-alkanes. It vital to tailor balance isomerization cracking reactions in hydroisomerization. Herein, a Pt/hierarchical SSZ-32 catalyst was fabricated with sequential desilication–dealumination treatment boost n-hexadecane (C16). The pore structure acid sites zeolite w...

Journal: :Bioresources 2023

Granular activated carbon (GAC) and powdered (PAC) are the two most common forms of with varying particle size range. The goal this study was to analyze key factors (particle activation temperature) affecting surface characteristics GAC PAC derived from palm kernel shell (PKS). morphology suggested that pore network in PKS-PAC is more developed than PKS-GAC owing presence a micropore structure ...

Journal: :Surfaces and Interfaces 2021

Co-axial electrospinning is an efficient technique to develop core-shell or hollow nanofibrous structures. In this study electrospun carbon nanofibers with three different morphologies, i.e. solid porous structure (P-ECNF), wall (H-ECNF), and (HP-ECNF) were developed through bicomponent co-axial of polyacrylonitrile (PAN) poly (methyl methacrylate) (PMMA) by varying proportion the sacrificial P...

Journal: :Batteries 2023

Structural imperfections, heteroatom dopants, and the interconnected pore structure of carbon materials have a huge impact on their electrochemical performance in lithium-ion sodium-ion batteries due to specific ion transport dominant storage mechanism at surface defect sites. In this work, mesopore-enriched nitrogen-doped (NC) were produced with template-assisted chemical vapor deposition usin...

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