Results 41 to 50 of about 41,926 (292)

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

open access: yesAdvanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal   +10 more
wiley   +1 more source

Gateway of Landfilled Plastic Waste Towards Circular Economy in Europe

open access: yesSeparations, 2019
For decades, significant work has been conducted regarding plastic waste by dealing with rejected materials in waste masses through their accumulation, sorting and recycling.
Juris Burlakovs   +12 more
doaj   +1 more source

Characterization and biodegradation of poly (vinyl alcohol)/cassava starch [PDF]

open access: yes, 2013
A series of poly (vinyl alcohol)/cassava starch (PVA/CS) blends at 50, 60, 70 and 80 wt.% cassava starch contents were prepared in one-step compounding process.
Nor Hassan, Nor Sarizal
core  

Kinetics of hydroformylation of 1-octene in ionic liquid-organic biphasic media using rhodium sulfoxantphos catalyst [PDF]

open access: yes, 2011
Biphasic hydroformylation of 1-octene was performed using rhodium sulfoxantphos catalyst dissolved in [BuPy][BF4] ionic liquid. Preliminary experiments proved this system to retain the catalytic complex within the ionic liquid phase and to maintain a ...
Delmas, Henri   +4 more
core   +1 more source

Intermolecular Interactions as Driving Force of Increasing Multiphoton Absorption in a Perylene Diimide‐Based Coordination Polymer

open access: yesAdvanced Functional Materials, EarlyView.
This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger   +11 more
wiley   +1 more source

SINGLE-STAGE AND SIMPLE FABRICATION OF PE FILMS DECORATED WITH HALLOYSITE NANOTUBES

open access: yesKPI Science News
Background. Environmental pollution with plastic waste is a global problem that requires the search for effective and safe ways of disposal or processing of secondary raw materials.
Iryna Kovinchuk   +2 more
doaj   +1 more source

Molybdenum(V), germanium(IV), aluminum(III) and nickel(II) adducts with ethyleneurea, ethylenethiourea and propyleneurea: some empirical correlations involving TG and IR data [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The adducts MoCl5·2eu, MoCl5·2pu, GeCl4·2etu, AlCl3·2pu, AlCl3·3pu, NiCl2·2etu and NiCl2·4etu (eu = ethyleneurea, etu = ethylenethiourea and pu =propyleneurea) were synthesized and characterized by elemental analysis (C, H, N), infrared spectroscopy (IR)
ROBSON F. DE FARIAS, CLAUDIO AIROLDI
doaj  

Thermal Decomposition and Combustion of γ-irradiated Polyamide 6 Containing Phosphorus Oxynitride or Phospham [PDF]

open access: yes, 1999
Polyamide 6 (PA-6) containing the fire retardants phosphorus oxynitride ((PON)m) or phospham ((PN2H)n) was exposed to 60Co-γ-rays (absorbed dose: 1.0–4.0 MGy).
Balabanovich, A. I.   +4 more
core   +1 more source

Structural and physico-mechanical properties of natural rubber/GTR composites devulcanized by microwaves: influence of GTR source and irradiation time [PDF]

open access: yes, 2018
Ground tire rubber from car and truck was modified using microwave irradiation at variable time. The irradiated ground tire rubber was used as filler in composites based on natural rubber.
Cañavate Ávila, Francisco Javier   +4 more
core   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

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