Results 31 to 40 of about 582,787 (238)

Electromigration in sintered nanoporous copper

open access: yes, 2017
The current feed capacity of electrical interconnects is mainly limited by the poor electromigration (EM) resistance of lead free-solder interconnects. Thus, the community investigates alternative interconnect approaches and materials, e.g.
Sebastian Gerke   +4 more
core   +1 more source

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Philippe Tailhades   +5 more
core   +1 more source

Preconcentration of ultra-traces of Cu(II) in water samples using SBA-15 sorbent modified with a thiocarbohydrazide ligand prior to determination by flame atomic absorption spectrometry [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
A simple, reliable and rapid method for the extraction of ultra-trace copper(II) using nanoporous SBA-15 sorbent modified with a thiocarbohydrazide ligand, and determination by flame atomic absorption spectrometry is presented.
Payehghadr Mahmood   +4 more
doaj   +1 more source

INVESTIGATION OF THE INFLUENCE OF ANODIZING MODES OF COPPER OXIDE FILMS ON THEIR MORPHOLOGY

open access: yesEurasian Physical Technical Journal, 2022
This work presents experimental data on the surface morphology of Cu2O films obtained by single-stage electrochemical anodization. The process was carried out at a constant applied potential of 50V and at a temperature of 13°C (90 seconds) in an ...
M.F. Kadir   +3 more
doaj   +1 more source

Surface Defect Healing in Annealing from Nanoporous Carbons to Nanoporous Graphenes [PDF]

open access: yes, 2023
Nanoporous graphene (NPG) materials have the pronounced electrochemical stability of the seamless graphene structures developed over the 3D space. We revisited the Raman spectra of nanoporous carbons (NPCs) synthesized using θ-/γ-Al2O3 templates and NPGs
Kaoru, Yamazaki   +6 more
core   +2 more sources

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

open access: yesAdvanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian   +8 more
wiley   +1 more source

Theft in Price-Volatile Markets: On the Relationship between Copper Price and Copper Theft [PDF]

open access: yes, 2011
Recently, against a backdrop of general reductions in acquisitive crime, increases have been observed in the frequency of metal theft offences. This is generally attributed to increases in metal prices in response to global demand exceeding supply.
Belur, J   +9 more
core   +1 more source

A Multifunctional Ionograsper Enabling Ion‐Redistribution Proximity Sensing and Structural‐Reconfiguration‐Driven Bidirectional Actuation

open access: yesAdvanced Materials, EarlyView.
A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim   +5 more
wiley   +1 more source

Nanoporous copper as the hydrogen transfer catalyst for reduction of imines with silane/alcohol as the hydrogen source

open access: yesResults in Chemistry
The design and synthesis of sustainable nanocatalysts for novel and improved organic transformation are key tasks in organic chemistry. In this study, surface-oxidized nanoporous copper (np-Cu) was prepared using a dealloying method and oxygen ...
Mengyuan Li   +4 more
doaj   +1 more source

Visible light driven degradation of brilliant green dye using titanium based ternary metal oxide photocatalyst

open access: yesResults in Physics, 2019
We report a novel copper and cobalt impregnated titanium based ternary metal oxide nanocomposite (CuCO0.5Ti0.5O2) synthesized via simple chemical method.
Debopriya Bhattacharya   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy