Results 91 to 100 of about 45,771 (311)
Template-based geometric simulation of flexible frameworks [PDF]
, 2012 Specialised modelling and simulation methods implementing simplified physical models are valuable generators of insight. Template-based geometric simulation is a specialised method for modelling flexible framework structures made up of rigid units.
Stephen A. Wells +5 more
core +1 more source
Química Nova, 2009 This paper deals with an adosrption of sulphur compounds employing zeolites containing zinc. The zeolites employed were commercial NaY and Beta. The zinc was incorporated in three levels: 0.5; 1.0 and 5%. The sulphur compounds studied were benzothiophene
Álvaro L. Malvesti +4 more
doaj +1 more source
Advanced Energy Materials, EarlyView.Ir‐based double perovskites restructure during acidic oxygen evolution electrocatalysis through dissolution of non‐Ir cations and convergence toward IrOx active‐site motifs with similar structure and intrinsic activity across compositions. The identity of the dissolving cations controls dissolution and surface reconstruction kinetics, clarifying how ...
Harrison H. Lippie +5 more
wiley +1 more source
Microwave synthesis and occlusion reactions of zeolites [PDF]
, 2007 The work presented in this volume covers two distinct fields of zeolite chemistry. The first section of this thesis is dedicated to the synthesis of zeolites A (LTA), X (FAU), Y, (FAU) and rho (RHO) in a microwave oven.
Taylor, Ann Elizabeth
core
Cleaner Routes for Friedel-Crafts Acylation [PDF]
, 2010 Friedel-Crafts acylation is among the most fundamental and useful reactions to yield aromatic ketones but it is one of the less acceptable in terms of unwanted polluting by-products or atom economy because of the overconsumption of catalyst which is used
Aribert, Nicolas +4 more
core +1 more source
AIChE Journal, EarlyView.Abstract Magnetic field‐assisted concentration swing adsorption (CSA) provides an electrification‐compatible alternative to conventional temperature swing adsorption (TSA) by enabling rapid heating/cooling and energy‐efficient regeneration under near‐isothermal conditions, thereby eliminating the need for sensible heat input.
Xiaohao Jia, Fateme Rezaei
wiley +1 more source
Second-Sphere Effects on Methane Hydroxylation in Cu-Zeolites [PDF]
, 2018 Two [Cu2O]2+ cores have been identified as the active sites of low temperature methane hydroxylation in the zeolite Cu-MOR. These cores have similar geometric and electronic structures, yet different reactivity with CH4: one reacts with a much lower ...
Pieter Vanelderen (1598065) +4 more
core +1 more source
Catalytic Pyrolysis of Cellulose Biomass to Aromatic Hydrocarbons Using Modified HZSM-5 Zeolite
NanomaterialsGallium-modified Zeolite Socony Mobil-5 (ZSM-5) zeolites were synthesized using wetness impregnation and hydrothermal synthesis methods. The structural and acidic properties of the zeolites were characterized through an analytical instrument, which ...
Jian Li +5 more
doaj +1 more source
Potential uses of natural zeolites for the development of new materials: short review
MATEC Web of Conferences, 2016 Zeolites stand apart among the many families of porous materials. Due to their structure, they have a number of important practical properties such as a high adsorption capacity and the ability to cation exchange. However, the main feature distinguishing
Petranovskii V. +4 more
doaj +1 more source
Structured sorbents for Direct Air Capture: The impact of materials and chemicals on performance
AIChE Journal, EarlyView.Abstract Structured sorbents can efficiently process large air volumes required for Direct Air Capture (DAC), but their broad implementation is limited by challenges in producing reproducible and homogeneous materials. This work presents a robust procedure to graft amines onto monolithic sorbents and systematically investigates how CO2$$ {\mathrm{CO ...
Nicole Ferru +8 more
wiley +1 more source