Results 71 to 80 of about 33,351,161 (313)

Purification of agave fiber by a hydrothermal method

open access: yesRevista Mexicana de Ingeniería Química, 2020
The bagasse of agave tequilana Weber is a lignocellulosic waste generated by the tequila production process. Purification of agave fiber was carried out by evaluating the effect of temperature and reaction time on the hydrothermal process. Hydrolysis was carried out in a high pressure digester, temperature 140°C, the process was standardized using 3.5 ...
S.J. Guevara-Martínez   +3 more
openaire   +2 more sources

Nucleation and growth of hydroxyapatite nanocrystals by hydrothermal method

open access: yesAIP Advances, 2018
Hydroxyapatite (HA) was synthesized by using a hydrothermal method with Ca(NO3)2·4H2O and H3PO4. We use x-ray diffraction and field-emission scanning electron microscopy to investigate how pH, reaction temperature, hydrothermal-reaction time, and calcium-
Yanlou Zhu   +4 more
semanticscholar   +1 more source

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

open access: yesAdvanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase   +6 more
wiley   +1 more source

Studies on the Formation of Ferrites by Hydrothermal Method

open access: yesJournal of the Japan Society of Powder and Powder Metallurgy, 1969
The crystal size of the ferrites formed hydrothermally from the mixtures of 2α-FeOOH +Zn(OH)2, 2α-FeOOH+NiO or 2α-FeOOH+Co(OH)2, was found to depend on the pH of the medium, and large cubic crystals were observable in alkaline medium, in which complex ions bearing Zn++, Ni++ or Co++ were stable.In case of the synthesis of these ferrites from ...
Kuwamoto, Hidehiko   +2 more
openaire   +2 more sources

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li   +13 more
wiley   +1 more source

Incorporation of Poly(Vinyl Alcohol) for The Improved Properties of Hydrothermal Derived Calcium Phosphate Cements

open access: yesIndonesian Journal of Chemistry, 2018
Calcium phosphate cement (CPC) has been synthesized via a straightforward hydrothermal route. Calcium oxide and ammonium dihydrogen phosphate were used as calcium and phosphate precursors.
Nurul Nabilah Razali, Iis Sopyan
doaj   +1 more source

Photoactive Tweezers

open access: yesAdvanced Materials, EarlyView.
A photoactive tweezers system based on photoactive colloids is developed and systematically investigated in this study. Through experimental and theoretical methods, we demonstrate that the photoredox reaction catalyzed by a dye‐sensitized TiO2 particle generates a strong positive phototaxis, enabling self‐entrapment in the beam center.
Jingyuan Chen   +9 more
wiley   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

open access: yesAdvanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler   +14 more
wiley   +1 more source

Synthesis of MoO3 nanobelts/reduced graphene oxide by one-step hydrothermal method and the corresponding electrochemical properties

open access: yesFenmo yejin jishu
To improve the energy storage performance of MoO3 as the supercapacitor electrode materials, the MoO3 nanoribbon/reduced graphene oxide (RGO) composites were synthesized by one-step hydrothermal method.
LÜ Xing, LUO Cheng, LIANG Guijie
doaj   +1 more source

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