Results 21 to 30 of about 45,062 (259)

Role of Magnetite Nanoparticles Size and Concentration on Hyperthermia under Various Field Frequencies and Strengths

open access: yesMolecules, 2021
Magnetite (Fe3O4) nanoparticles were synthesized using the chemical coprecipitation method. Several nanoparticle samples were synthesized by varying the concentration of iron salt precursors in the solution for the synthesis. Two batches of nanoparticles
Venkatesha Narayanaswamy   +6 more
doaj   +1 more source

Dielectric properties of CaCu3Ti4O12 based multiphased ceramics [PDF]

open access: yes, 2006
A “soft chemistry” method, the coprecipitation, has been used to synthesize the perovskite CaCu3Ti4O12 (CCT). Three main types of materials were obtained for both powders and sintered ceramics: a monophased consisting of the pure CCT phase, a biphased ...
Boulos, Madona   +3 more
core   +2 more sources

Encapsulation of human serum albumin in submicrometer magnetic poly(lactide-co-glycolide) particles as a model system for targeted drug delivery [PDF]

open access: yes, 2013
Two types of iron oxide nanoparticles were synthesized by coprecipitation of Fe(II) and Fe(III) chlorides: water-dispersible γ-Fe2O3 and organic solvent-dispersible oleic acid-coated Fe3O4 particles.
Feczkó, Tivadar   +6 more
core   +1 more source

Co-doped Ni(OH)2 Ultrafine Particles with High Supercapacitor Performance

open access: yesInternational Journal of Electrochemical Science, 2020
Ni(OH)2 and Co-doped Ni(OH)2 ultrafine particles were synthesized by coprecipitation method. When the molar ratio of Ni2+:Co2+ in the precursor solution was 5:1, the resulted Co-doped Ni(OH)2 ultrafine particles displayed a high specific capacitance of ...
Qiannan Feng   +3 more
doaj   +1 more source

Effects of Lithium Source and Content on the Properties of Li-Rich Layered Oxide Cathode Materials

open access: yesChemEngineering, 2023
Lithium-rich layered oxide (LLO) are considered high-capacity cathode materials for next-generation lithium-ion batteries. In this study, LLO cathode materials were synthesized via the hydroxide coprecipitation method followed by a two-step lithiation ...
Yufan Wang   +5 more
doaj   +1 more source

Enhanced hydrogen storage in Ni/Ce composite oxides [PDF]

open access: yes, 2007
The properties of dried (but not calcined) coprecipitated nickel ceria systems have been investigated in terms of their hydrogen emission characteristics following activation in hydrogen.
Berlouis, Leonard E. A.   +7 more
core   +1 more source

Potential Impacts of Tailings and Tailings Cover Fertilization on Arsenic Mobility in Surface and Ground Waters [PDF]

open access: yes, 2008
A number of mining sites worldwide, particularly gold mines, have tailings management facilities (TMFs) that contain high levels of arsenic. Current closed mine site regulatory agencies tend to prefer revegetation of TMFs as part of the mandated ...
Kaya Forest, Sierra Rayne
core   +2 more sources

Investigation on Effective Neutralization Process of Acid Mine Drainage Containing High Amount of Mn and Zn by Additions of δ-MnO2 Adsorbent and Oxidizing Agent

open access: yesJournal of MMIJ, 2022
This study examined effective removal methods for high amounts of manganese (Mn) and zinc (Zn) in acid mine drainage (AMD) by addition of different neutralizing agents (NaOH and NaClO) and synthesized birnessite (δ-MnO2) using two-type AMD samples which ...
Shigeshi FUCHIDA   +2 more
doaj   +1 more source

Stability of nifedipine-polyvinylpyrrolidone coprecipitate.

open access: yesChemical and Pharmaceutical Bulletin, 1981
The chemical and physicochemical stability of nifedipine in nifedipine-polyvinylpyrrolidone (PVP) coprecipitate systems was studied. It was found that nifedipine in the coprecipitate systems was chemically stable to heat and humidity. Storage of the coprecipitate systems under humid conditions was found to influence the dissolution behavior.
I, Sugimoto, A, Kuchiki, H, Nakagawa
openaire   +3 more sources

Determination of Rare Earth Elements in Peridotite by Inductively Coupled Plasma-Mass Spectrometry after Alkali Fusion and Mg(OH)2 and Fe(OH)3 Coprecipitation

open access: yesYankuang ceshi, 2017
Characteristics of REEs in peridotite is significant for studying petrogenesis and magmatic processes. Due to the serious interference of matrix elements such as Mg and Fe, it is difficult to determine the low contents of REEs in peridotite (∑REEs=0.1-1 ...
LI Wei-liang   +3 more
doaj   +1 more source

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