Results 21 to 30 of about 189,654 (307)

The vertical distribution of iron stable isotopes in the North Atlantic near Bermuda [PDF]

open access: yes, 2012
Seawater dissolved iron isotope ratios (δ^(56)Fe) have been measured in the North Atlantic near Bermuda. In a full-depth profile, seawater dissolved δ^(56)Fe is isotopically heavy compared to crustal values throughout the water column (δ^(56)Fe_(IRMM-014)
Adkins, Jess, John, Seth G.
core   +1 more source

Influence of the preparation method on the photocatalytic activity of Nd-modified TiO2

open access: yesBeilstein Journal of Nanotechnology, 2018
Nd-modified TiO2 photocatalysts have been obtained via hydrothermal (HT) and sol–hydrothermal (SHT) methods. The as-prepared samples were characterized by X-ray diffraction (XRD), BET surface area measurements, scanning electron microscopy (SEM), diffuse
Patrycja Parnicka   +7 more
doaj   +1 more source

Pourbaix-Guided Mineralization and Site-Selective Photoluminescence Properties of Rare Earth Substituted B-Type Carbonated Hydroxyapatite Nanocrystals

open access: yesMolecules, 2021
Rare-earth labeling in biological apatite could provide critical information for the pathologic transition (osteoclastic) and physiologic regeneration (osteogenesis) of bone and teeth because of their characteristic site-sensitive fluorescence in ...
Peng Liu   +4 more
doaj   +1 more source

Bioactivity evaluation of nanosized ZnFe2O4 fabricated by hydrothermal method

open access: yesProcessing and Application of Ceramics, 2021
In this study, we investigated the structural, microstructural, magnetic and cytotoxic properties of encapsulated ZnFe2O4 nanoparticles. The nanoparticles were synthesized using the microwave-assisted hydrothermal method and their surfaces were silanized and later encapsulated with poly-2-hydroxyethyl methacrylate (PHEMA).
Hangai, Bruno   +4 more
openaire   +5 more sources

Hydrothermal activity lowers trophic diversity in Antarctic sedimented hydrothermal vents [PDF]

open access: yes, 2016
Sedimented hydrothermal vents are those in which hydrothermal fluid vents through sediment and are among the least studied deep-sea ecosystems. We present a combination of microbial and biochemical data to assess trophodynamics between and within ...
Bell, James B.   +6 more
core   +1 more source

Preparation of Upconversion Nanocrystals NaYF4: Yb/Tm with Hydro(solvo)thermal Methods

open access: yesNano Biomedicine and Engineering, 2017
A upconversion nanocrystal of NaYF4:Yb/Tm was synthesized successfully by two different methods of solvothermal and hydrothermal, respectively. The properties of the products were characterized and compared.
Feifei Zhao, Dongguang Yin
doaj   +1 more source

The Cooperative Effect of Ag and Cu Co-doping on Morphology and Optical Properties of ZnO Nanorods

open access: yesTaiyuan Ligong Daxue xuebao, 2021
Zinc oxide (ZnO) has unique physical and optical properties. Proper doping of ZnO plays an important role in adjusting the photoelectric properties of its optoelectronic devices. In this paper, undoped, Ag-or Cu-doped, and Ag+Cu co-doped ZnO nanorod (NRs)
Xiaolong ZHOU   +6 more
doaj   +1 more source

Near-seafloor magnetic mapping of off-axis lava flows near the Kairei and Yokoniwa hydrothermal vent fields in the Central Indian Ridge [PDF]

open access: yes, 2018
The Kairei (KHF) and Yokoniwa hydrothermal fields (YHF) are hosted in mafic as well as ultramafic rocks distributed at an off-axis volcanic knoll of the Central Indian Ridge.
Kyoko Okino, Masakazu Fujii
core   +2 more sources

Structural Modification, Synthesis Mechanism and Properties Analysis of Li4Ti5O12 Anode Materials

open access: yesInternational Journal of Electrochemical Science, 2017
Li4Ti5O12 microsphere was synthesized by hydrothermal method. The effects of amount of lithium hydroxide, hydrothermal time and sintering temperature on properties of sample were studied.
Cheng Liu   +5 more
doaj   +1 more source

Supercapacitor Performance of Nickel-Cobalt Sulfide Nanotubes Decorated Using Ni Co-Layered Double Hydroxide Nanosheets Grown in Situ on Ni Foam [PDF]

open access: yes, 2020
In this study, to fabricate a non-binder electrode, we grew nickel-cobalt sulfide (NCS) nanotubes (NTs) on a Ni foam substrate using a hydrothermal method through a two-step approach, namely in situ growth and an anion-exchange reaction.
Ang, Li   +8 more
core   +1 more source

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