Results 11 to 20 of about 1,465,196 (394)

Ab Initio Study of Structural, Electronic, and Thermal Properties of Pt/Pd-Based Alloys

open access: yesCondensed Matter, 2023
Alloys are beneficial in numerous applications since they combine the desirable properties of different metals. In this regard, Pt/Pd alloys have been investigated as a replacement for Pt, which is the standard catalyst used in various catalytic ...
Louise Magdalene Botha   +6 more
doaj   +1 more source

Carbon dioxide electroreduction on single-atom nickel decorated carbon membranes with industry compatible current densities

open access: yesNature Communications, 2020
Carbon dioxide electroreduction provides a useful source of carbon monoxide, but comparatively few catalysts could be sustained at current densities of industry level.
Hengpan Yang   +10 more
semanticscholar   +1 more source

Nickel [PDF]

open access: yes, 2016
Atomic symbol: Ni Atomic number: 28 Atomic weight: 58.69 Isotopes and abundances: 58 Ni 68.0769 %, 60 Ni 26.2231 %, 61 Ni 1.1399 %, 62 Ni 3.6345 %, 64 Ni 0.9256 % 1 Atm melting point: 1455 C 1 Atm boiling point: 2913 C Common valences: 2+ Ionic radii: fourfold, 55 pm; fourfold square, 49 pm; fivefold, 0.63 pm; sixfold, 9 pm Pauling electronegativity: 1.
Griffin, William L., Chassé, Mathieu
openaire   +2 more sources

Water availibility of Karo Lake, Obi Island, South Halmahera [PDF]

open access: yesE3S Web of Conferences
Lake Karo is one of the largest water sources on Obi Island. Obi Island has a large potential for water resources that can be used optimally by the local communities.
Nuraprianisandi Siska   +4 more
doaj   +1 more source

Water availability of Akelamo River, Obi Island, South Halmahera [PDF]

open access: yesE3S Web of Conferences
The nickel mining industry’s activities are not spared from the high quantity of water demand, such as those of Harita Nickel Indonesia, a company located in Obi Island, South Halmahera.
Yasya Heksantia Rahmadinda   +4 more
doaj   +1 more source

Leading terms of Artin L-series at negative integers and annihilation of higher K-groups [PDF]

open access: yes, 2010
Let L/K be a finite Galois extension of number fields with Galois group G. We use leading terms of Artin L-series at strictly negative integers to construct elements which we conjecture to lie in the annihilator ideal associated to the Galois action on ...
Nickel, Andreas
core   +1 more source

Processing of low-quality bauxite feedstock by thermochemistry-Bayer method

open access: yesЗаписки Горного института, 2016
The modern production of aluminum which by its global output ranks first among the non-ferrous metals includes three main stages: ore extraction, its processing into alumina and, finally, the production of primary aluminum.
O. A. Dubovikov, E. E. Yaskelyainen
doaj   +1 more source

Rheological properties and resistance evolution of cemented unclassified tailings-waste rock paste backfill

open access: yes工程科学学报, 2023
Coarse aggregate paste filling is the core direction of today’s mine development. The coarse aggregate filling can effectively reduce the discharge of the solid mine waste, which is conducive to the realization of safe, clean, and efficient mining of the
Sheng-hua YIN   +5 more
doaj   +1 more source

Valoración del sistema de monitoreo implementado en la presa de colas de la fábrica Pedro Sotto Alba

open access: yesCiencia & Futuro, 2022
Se evaluaron los métodos de monitoreo existentes, funcionamiento y nivel de influencia en la estabilidad física para la prevención, corrección o mitigación de riesgos por fallos de la presa de colas de la empresa Pedro Sotto Alba de Moa. El procesamiento
Yailan Cantillo-Frómeta   +3 more
doaj   +2 more sources

Nanostructured nickel phosphide as an electrocatalyst for the hydrogen evolution reaction.

open access: yesJournal of the American Chemical Society, 2013
Nanoparticles of nickel phosphide (Ni2P) have been investigated for electrocatalytic activity and stability for the hydrogen evolution reaction (HER) in acidic solutions, under which proton exchange membrane-based electrolysis is operational.
E. Popczun   +6 more
semanticscholar   +1 more source

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