Results 21 to 30 of about 2,599,064 (292)

Optimization of Pretreatment and Hydrothermal Process of Na-X Zeolite from Kaolin and Metakaolin

open access: yesJurnal Kimia Valensi, 2019
Synthesis of Na-X zeolite was conducted from kaolin and metakaolin. Synthesis varied in its pretreatment method and hydrothermal conditions. The pretreatment methods used were: conventional alkaline, alkaline fusion and conventional fluoride ...
Hartati Hartati   +3 more
doaj   +1 more source

SINTESIS SILIKA MCM-41 DAN UJI KAPASITAS ADSORPSI TERHADAP METILEN BIRU

open access: yesPharmaciana, 2013
Synthesis of MCM-41 with hydrothermal time variation 18, 24, 36, 48 hours using templating agent cetiltrimetilammonium bromide (CTAB) has been done.
Mustofa Ahda   +2 more
doaj   +1 more source

Facile Synthesis of Nd2Fe14B Hard Magnetic Particles with Microwave-Assisted Hydrothermal Method

open access: yesMolecules, 2023
The synthesis of Nd-Fe-B magnetic powders via chemical techniques presents significant promise, but poses challenges due to their inherent chemical instability.
Ling Wang, Xiaofen Xu
doaj   +1 more source

Hydrothermal Synthesis of Nanodispersed Titanium Dioxide

open access: yesФізика і хімія твердого тіла, 2017
The paper is an overview of published data within the perspective method of hydrothermal synthesis of nanodispersed titanium dioxide. Organizing data allowed to capture the general trends of the relationships between the conditions of synthesis and ...
M. G. Mizilevska   +4 more
doaj   +1 more source

Hydrothermal Organic Synthesis Experiments [PDF]

open access: yes, 1992
The serious scientific debate about spontaneous generation which raged for centuries reached a climax in the nineteenth century with the work of Spallanzani, Schwann, Tyndall, and Pasteur. These investigators demonstrated that spontaneous generation from dead organic matter does not occur (see reviews by Conant, 1953 and Kenyon and Steinman, 1969 ...
openaire   +2 more sources

Decoupled temperature and pressure hydrothermal synthesis of carbon sub-micron spheres from cellulose

open access: yesNature Communications, 2022
Temperature and pressure are typically dependent parameters in hydrothermal processes. Here, authors devise a hydrothermal system that allows independent control of these parameters and realize low-temperature fast synthesis of carbon sub-micron spheres ...
Shijie Yu   +9 more
doaj   +1 more source

Hydrothermal synthesis of hydroxyapatite

open access: yesJournal of Physics: Conference Series, 2006
A hydrothermal method of synthesizing hydroxyapatite by heating a precipitate, formed by mixing Ca(NO3)24H2O and (NH4)2HPO4 with distilled water, in a hydrothermal reactor at 200 °C for 24-72 hrs is described. A treatment time of 24 hrs produced single phase (as shown by XRD) hydroxyapatite powder, however for longer treatment times XRD patterns were ...
J S Earl, D J Wood, S J Milne
openaire   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Synthesis of MOFs and Characterization and Drug Loading Efficiency

open access: yesChemEngineering
Asthma and allergic rhinitis (AR) stand as prevalent chronic ailments impacting children within the United States. It is approximated that as many as 40% of American children exhibit symptoms indicative of AR, a condition which, if inadequately managed ...
Chuang Wu   +1 more
doaj   +1 more source

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

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