Results 71 to 80 of about 1,218,797 (156)

Oxygen-tolerant Electrochemical CO2 Reduction from Bicarbonate Solutions toward Multicarbon Compounds

open access: yesElectrochemistry
Electrochemical CO2 reduction to multicarbon products offers a promising pathway for closing the anthropogenic carbon cycle while producing value-added chemicals.
Asato INOUE   +4 more
doaj   +1 more source

Aroma-active secondary oxidation products of butter [PDF]

open access: yes, 2007
Butter contains vitamins, minerals and unsaturated lipids, such as polyunsaturated fatty acids (PUFA) and conjugated linoleic acids (CLAs). However the oxidative stability and consequently the shelf-life of milk products are inversely correlated with ...
Escher, Felix   +3 more
core  

Computational Analysis of Composition-Structure-Property-Relationships in NZP-type Materials for Li-Ion Batteries

open access: yes, 2019
Compounds crystallizing in the structure of NaZr$_2$(PO$_4$)$_3$ (NZP) are considered as promising materials for solid state electrolytes in Li-ion batteries. Using density functional theory (DFT), a systematic computational screening of 18 NZP compounds,
Elsässer, Christian   +2 more
core   +1 more source

Effect of Structural Parameters on Superconductivity in Fluorine-Free LnFeAsO1-y (Ln=La,Nd)

open access: yes, 2008
The crystal structure of LnFeAsO$_{1-y}$ (Ln = La, Nd) has been studied by the powder neutron diffraction technique. The superconducting phase diagram of NdFeAsO$_{1-y}$ is established as a function of oxygen content which is determined by Rietveld ...
Brese N. E.   +13 more
core   +1 more source

Preparation and characterization of novel double-decker rare-earth phthalocyanines substituted with 5-bromo-2-thienyl groups

open access: yesChemistry Central Journal, 2017
Background A series of rare-earth bisphthalocyanines of praseodymium, samarium and gadolinium bearing 5-bromo-2-thienyl substituents were prepared for the first time.
Jiří Černý   +5 more
doaj   +1 more source

Photodynamic therapeutic activity of novel porphyrins against lung squamous cell carcinoma

open access: yesBMC Cancer
Porphyrins, as drug-food homologous bioactive substances, hold significant potential in nanomedicine research and photodynamic therapy (PDT). In this study, we synthesized two novel porphyrin compounds, PTA and PTBA, based on the porphyrin compound TCPP.
Hao Meng   +7 more
doaj   +1 more source

Electron Spin Resonance (ESR) detection of active oxygen species and organic phases in Martian soils [PDF]

open access: yes
The presence of active oxygen species (O(-), O2(-), O3(-)) and other strong oxidants (Fe2O3 and Fe3O4) was invoked in interpretations of the Viking biological experiments and a model was also suggested for Martian surface chemistry.
Kim, Soon Sam   +2 more
core   +1 more source

On the nature of change in Ni oxidation state in BaTiO3-SrTiO3 system

open access: yes, 2016
XAFS studies of Ni-doped Ba$_{1-x}$Sr$_x$TiO$_3$ solid solution reveal that the Ni oxidation state changes from 4 in SrTiO$_3$ to 2.5 in BaTiO$_3$ when varying $x$.
Lebedev, A. I., Sluchinskaya, I. A.
core   +1 more source

Oxygen consumption during mineralization of organic compounds in water samples from a small sub-tropical reservoir (Brazil)

open access: yesBrazilian Archives of Biology and Technology, 2003
Assays were carried out to evaluate the oxygen consumption resulting from mineralization of different organic compounds: glucose, sucrose, starch, tannic acid, lysine and glycine. The compounds were added to 1 l of water sample from Monjolinho Reservoir.
Cunha-Santino Marcela Bianchessi da   +1 more
doaj  

Design of a lunar oxygen production plant [PDF]

open access: yes
To achieve permanent human presence and activity on the moon, oxygen is required for both life support and propulsion. Lunar oxygen production using resources existing on the moon will reduce or eliminate the need to transport liquid oxygen from earth ...
Radhakrishnan, Ramalingam
core   +1 more source

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