Results 51 to 60 of about 39,610 (213)

Intrazeolite phototopotaxy. EXAFS analysis of precursor 8{W(CO)6}-Na56Y and photooxidation products 16(WO3)-Na56Y and 28(WO3)-Na56Y [PDF]

open access: yes, 1991
The intrazeolite photooxidation chemistry of alpha-cage encapsulated hexacarbonyltungsten(0) in Na56Y with O2, denoted n{W(CO)6}-Na56Y/O2/hv, which has previously been shown to provide a novel synthetic pathway to alpha-cage located tungsten(VI) oxide ...
Bein, Thomas   +3 more
core   +1 more source

Insecticide effect of zeolites on the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) [PDF]

open access: yes, 2016
(1) Background: The tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae) is a key tomato insect pest. At present, it is considered to be a serious threat in various countries in Europe, North Africa, and Middle East.
De Clercq, Patrick   +3 more
core   +3 more sources

Removal of Phosphate in Waste Water by Hydrothermal Synthesis Zeolite from Coal Fly Ash

open access: yesKuangchan zonghe liyong
In this paper, the coal fly ash was used as the main raw material, and the low-cost P-type zeolite adsorbent was synthesized through the hydrothermal process.The coal fly ash and synthetic zeolite were systematically characterized by means of X-ray ...
Dongsheng HE   +6 more
doaj   +1 more source

PEG-template for surface modification of zeolite: A convenient material to the design of polypropylene based composite for packaging films

open access: yesResults in Physics, 2018
Zeolite was successfully modified by conventional synthetic route. Polyethylene glycol was employed for surface modification of zeolite. The surface of zeolite exhibited therefore hydrophobic properties.
S. Toommee, P. Pratumpong
doaj   +1 more source

Influence of OH- concentration on the illitization of kaolinite at high pressure [PDF]

open access: yes, 2011
The products of hydrothermal reactions of kaolinite at 300°C and 1000 bars were studied in KOH solutions covering an OH- concentration, [OH-], of 1M to 3.5M. XRD patterns indicated a notable influence of the [OH-] on the reaction.
Becerro Nieto, Ana Isabel   +2 more
core   +1 more source

A one-step Cu/ZnO Quasi-Homogeneous Catalyst for DME Production from Syn-gas [PDF]

open access: yes, 2016
Colloidal Cu/ZnO nanoparticles combine with γ-Al2O3 to form promising hybrid catalysts for the direct synthesis of dimethyl ether (DME) in liquid phase, showing high activity, selectivity and stability.
Garcia Trenco, A   +3 more
core   +1 more source

Synthesis of Zeolite A From Coal Fly Ash with Variation of Si/Al Molar Ratio

open access: yesJurnal Ilmu Dasar, 2018
Fly ash containing 30-36% silica and 14,52-23,78% alumina can be potentially as raw material for synthetic zeolite such as zeolite A. Zeolite A is an aluminosilicate mineral which is rich in alumina so that this zeolite has a good cation exchange ...
Novita Andarini   +2 more
doaj   +1 more source

Applications for special-purpose minerals at a lunar base [PDF]

open access: yes
Maintaining a colony on the Moon will require the use of lunar resources to reduce the number of launches necessary to transport goods from the Earth. It may be possible to alter lunar materials to produce minerals or other materials that can be used for
Ming, Douglas W.
core   +1 more source

Nonaqueous Fluoride/Chloride Anion-Promoted Delamination of Layered Zeolite Precursors: Synthesis and Characterization of UCB-2 [PDF]

open access: yes, 2011
The delamination of layered zeolite precursor PREFER is demonstrated under mild nonaqueous conditions using a mixture of cetyltrimethylammonium bromide, tetrabutylammonium fluoride, and tetrabutylammonium chloride in N,N-dimethylformamide (DMF) as ...
Eilertsen, Einar A.   +6 more
core   +1 more source

Indigo in the nanochannels of zeolite L : towards a new type of colorant [PDF]

open access: yes, 2018
A host-guest based colorant was synthesized by intercalating indigo molecules into the nanochannels of zeolite L (ZL). Reductive washing thereby ensured the efficient and selective removal of non-intercalated indigo molecules.
Brühwiler, Dominik   +7 more
core   +1 more source

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