Results 121 to 130 of about 850,252 (380)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Carbon nanotubes in electric and magnetic fields

open access: yes, 2011
We derive an effective low-energy theory for metallic (armchair and non-armchair) single-wall nanotubes in the presence of an electric field perpendicular to the nanotube axis, and in the presence of magnetic fields, taking into account spin-orbit ...
Braunecker, Bernd   +3 more
core   +2 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies   +8 more
wiley   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Effect of surfactant concentration on the morphology of MoxSy nanoparticles prepared by a solvothermal route

open access: yesGreen Processing and Synthesis, 2017
The preparation of MoxSy nanoparticles with different morphologies via a surfactant-assisted one-pot solvothermal route was reported. The concentration of surfactant was studied to evaluate its effects on the morphology and the size of the as obtained ...
Akram Hanane   +5 more
doaj   +1 more source

Theory of graphitic boron nitride nanotubes [PDF]

open access: green, 1994
Ángel Rubio   +2 more
openalex   +1 more source

1D Light‐Emitting MAPbBr3 Perovskite Encapsulated in Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
Encapsulation of MAPbBr3 perovskite in single‐walled carbon nanotubes (SWCNTs) yields a hybrid nanomaterial with distinctive optoelectronic properties. Perovskite confinement induces a unified single‐peak photoluminescence (PL) with a reduced lifetime, while charge transfer alters the optical properties of nanotubes.
Valentina A. Eremina   +7 more
wiley   +1 more source

Na2Ti3O7 and α-Fe2O3-based hybrid nanomaterial for the negative electrode of sodium-ion batteries [PDF]

open access: yesЭлектрохимическая энергетика
Sodium trititanate, Na2Ti3O7, is considered to be a promising material for the negative electrode of reliable sodium-ion batteries. The advantages of Na2Ti3O7 include suitable electrode potential and cycling stability.
Opra, Denis Pavlovich   +4 more
doaj   +1 more source

Tuning the conductance of a molecular switch

open access: yes, 2007
The ability to control the conductance of single molecules will have a major impact in nanoscale electronics. Azobenzene, a molecule that changes conformation as a result of a trans/cis transition when exposed to radiation, could form the basis of a ...
Cuniberti, Gianaurelio   +3 more
core   +2 more sources

Effective Medium Theory of the Optical Properties of Aligned Carbon Nanotubes [PDF]

open access: green, 1997
F. J. García‐Vidal   +2 more
openalex   +1 more source

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