Results 71 to 80 of about 11,300,632 (342)

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

open access: yesAdvanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon   +7 more
wiley   +1 more source

Graphene-Based Nanostructures in Electrocatalytic Oxygen Reduction

open access: yes, 2018
Application of graphene-type materials in electrocatalysis is a topic of growing scientific and technological interest. A tremendous amount of research has been carried out in the field of oxygen electroreduction, particularly with respect to potential ...
Alammari   +45 more
core   +1 more source

Tuning the Selectivity of the CO2 Reduction Reaction by Means of Synergistic Interactions in the Cu, Ag, Ce System

open access: yesAdvanced Functional Materials, EarlyView.
Multi‐metal Cu─Ce─Ag nanoparticles harness synergistic interactions to drive efficient electrochemical CO2 reduction reaction toward C2+ products at high current densities. Ag enhances CO production, Ce modulates Cu oxidation states, and together they boost *CO coverage and local pH to enhance C─C coupling, enabling record C2+ yields with suppressed ...
Nini Zhang   +9 more
wiley   +1 more source

Electrocatalytic Activities of Pd-Ni Nanoparticles Obtained on Multiwalled Carbon Nanotubes towards Oxygen Evolution in 1M KOH

open access: yesInternational Journal of Electrochemical Science, 2008
Pd and Pd-Ni nanoparticles were synthesized on the surface of a new catalytic support, modified multiwalled carbon nanotubes (MWCNTs), by chemical precipitation method at 900C and their physicochemical and electrocatalytic properties towards oxygen ...
J.P. Singh   +4 more
doaj   +2 more sources

Oxygen Electroreduction on Multi-Walled Carbon Nanotube Supported Metal Phthalocyanines and Porphyrins in Acid Media

open access: yesInternational Journal of Electrochemical Science, 2013
Metal phthalocyanine and porphyrin functionalized multi-walled carbon nanotubes (MWCNTs) were used as non-precious electrocatalysts for the electroreduction of oxygen.
Ivar Kruusenberg   +2 more
doaj   +1 more source

Electrocatalytic Activity of Nanocomposites Containing Carbon Materials

open access: yesCatalysts, 2023
Carbon materials (CM), including various allotropic forms of carbon, such as graphene, nanotubes, fullerenes, and other porous structures, are widely used in the synthesis of catalysts [...]
Vera Bogdanovskaya, Inna Vernigor
openaire   +1 more source

Bifunctional earth-abundant phosphate/phosphide catalysts prepared via atomic layer deposition for electrocatalytic water splitting [PDF]

open access: yes, 2019
The development of active and stable earth-abundant catalysts for hydrogen and oxygen evolution is one of the requirements for successful production of solar fuels.
Dendooven, Jolien   +7 more
core   +2 more sources

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi   +9 more
wiley   +1 more source

Novel Electrochemical Sensors for Safety and Control in Fermentation Processes

open access: yesChemical Engineering Transactions, 2014
We report on the development of enzyme-free glucose electrochemical sensors for safety and control application in fermentation industry, manufactured by printing Au/TiO2 composites onto gold based planar electrodes.
C. Ampelli   +7 more
doaj   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu   +4 more
wiley   +1 more source

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