Results 21 to 30 of about 481,510 (353)

Palladinized graphene oxide-MOF induced coupling of Volmer and Heyrovsky mechanisms, for the amplification of the electrocatalytic efficiency of hydrogen evolution reaction

open access: yesScientific Reports, 2021
In this study, a nanocomposite of palladium supported graphene oxide (GO)/metal–organic framework (MOF) was prepared using electroless deposition of Pd on GO followed by impregnation method of Pd@GO and MOF. The prepared materials were characterized with
Mogwasha D. Makhafola   +6 more
doaj   +1 more source

The Chemistry of mineral oils [PDF]

open access: yesProceedings of the American Institute of Electrical Engineers, 1910
n ...
openaire   +2 more sources

Kinetics Study of Solvent and Solid-Phase Extraction of Rare Earth Metals with Di-2-Ethylhexylphosphoric Acid

open access: yesMetals, 2020
The kinetic features of solvent and solid-phase extraction of yttrium and iron (III) from simulated and industrial phosphoric acid solutions are revealed.
Olga Cheremisina   +4 more
doaj   +1 more source

Computer simulation of structure and dimensions of oxygen-octaadric clusters in lithium niobate crystal and the dynamics of their development with changes in composition [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
The peculiarities of formation of energetically equilibrium dipole oxygen-octahedral clusters in the structure of a ferroelectric crystal of lithium niobate (LiNbO3) have been studied by computer simulation.
V.M. Voskresensky   +3 more
doaj   +1 more source

Changes in dissolved iron deposition to the oceans driven by human activity: a 3-D global modelling study [PDF]

open access: yes, 2015
The global atmospheric iron (Fe) cycle is parameterized in the global 3-D chemical transport model TM4-ECPL to simulate the proton- and the organic ligand-promoted mineral-Fe dissolution as well as the aqueous-phase photochemical reactions between the ...
Baker, Alex   +5 more
core   +2 more sources

NEW ZINC OXALATO AND HYDROGENOXALATO COMPLEXES: SYNTHESIS AND INFRARED STUDY

open access: yesJournal of Engineering Studies and Research, 2017
Five new oxalato and hydrogenoxalato complexes with ZnBr2 have been synthesized and studied by infrared. Discrete structures have been suggested in the basis of spectroscopic data.
GORGUI AWA SECK   +2 more
doaj   +5 more sources

Mineral chemistry and thermobarometry of gabbroic rocks from the Pargeh area (NE Qazvin): A key for understanding the crystallization conditions [PDF]

open access: yesپترولوژی
Introduction Mineral chemistry data as well as petrography provide a comprehensive picture of magma crystallization conditions that support the conclusions based on geochemical data. In addition, the chemical composition of minerals such as clinopyroxene,
Nahid Naseri   +4 more
doaj   +1 more source

Removal of diesel pollution by biochar - support in water remediation [PDF]

open access: yesHemijska Industrija, 2021
Water contaminated with diesel oil represents one of the greatest challenges in waste water management. Water soluble fraction (WSF) is of particular interest because of its toxicity to aquatic organisms and discharge regulations set by environmental ...
Lopičić Zorica   +6 more
doaj   +1 more source

Carbon mineralization and microbial activity in agricultural topsoil and subsoil as regulated by root nitrogen and recalcitrant carbon concentrations [PDF]

open access: yes, 2018
Aims Mechanisms of subsoil carbon sequestration from deep-rooted plants are elusive, but may contribute to climate change mitigation. This study addressed the role of root chemistry on carbon mineralization and microbiology in a temperate agricultural ...
Elsgaard, Lars   +4 more
core   +1 more source

Whole rock and mineral chemistry of intermediate intrusive rocks in the northern side of Shahroud River near Zardkooh in Guilan province (Iran) [PDF]

open access: yesپترولوژی, 2022
IntroductionZardkooh is located in Western Alborz zone in the structural divisions of Iran. According to many published researches, most of the magmatic activities in the north and northwest of Iran are related to the Neotethys orogeny process, which are
Mojtaba Bahajroy   +3 more
doaj   +1 more source

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