Results 11 to 20 of about 11,597 (266)

Carbon foam-supported CoN nanoparticles and carbon nanotubes hybrids as bifunctional reduction electrocatalyst

open access: yesCatalysis Communications, 2022
CoN nanoparticles and carbon nanotubes hybrid supported on carbon foam (INPs-CoN/CNTs-CF) electrocatalyst was synthesized by one-step pyrolysis of irregular nanoparticles ZIF-67 (ZIF-67-INPs) with melamine foam.
Huan-Fang Xu   +4 more
doaj   +1 more source

Cryoaerogels and Cryohydrogels as Efficient Electrocatalysts [PDF]

open access: yesSmall, 2021
AbstractAdditive‐free cryoaerogel coatings from noble metal nanoparticles are prepared and electrochemically investigated. By using liquid nitrogen or isopentane as cooling medium, two different superstructures are created for each type of noble metal nanoparticle. These materials (made from the same amount of particles) have superior morphological and
Müller, Dennis   +3 more
openaire   +3 more sources

Microwave Assisted Green Synthesis of Ag/AgO Nanocatalyst as An Efficient OER Catalyst in Neutral Media

open access: yesHittite Journal of Science and Engineering, 2020
T he development of robust, stable and abundant materials that are operating under neutral conditions are of great importance for the electrocatalytic conversion of water to hydrogen using sunlight.
Gokhan Elmaci
doaj   +1 more source

The enhancement of microbial fuel cell performance by anodic bacterial community adaptation and cathodic mixed nickel–copper oxides on a graphene electrocatalyst

open access: yesJournal of Genetic Engineering and Biotechnology, 2022
Background Although microbial fuel cells (MFCs) represent a promising technology for capturing renewable energy from wastewater, their scaling-up is significantly limited by a slow-rate cathodic oxygen reduction reaction (ORR) and the development of a ...
Dena Z. Khater   +6 more
doaj   +1 more source

Electrodeposition of Pt–Ru Alloy Electrocatalysts for Direct Methanol Fuel Cell

open access: yesInternational Journal of Electrochemical Science, 2017
The electrocatalyst based on Pt-Ru alloy was successfully prepared on the carbon paper through electrodeposition approach. The deposition potential and time was tuned to control the particle size and density.
Chao Li   +4 more
doaj   +1 more source

Using the Palladium as core and Platinum as shell for ORR [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2014
In this work, electrocatalyst with core-shell structure (Pd as core and Pt as shell on VulcanXC-72R) was synthesis. Not only this structure can reduce the amount of platinum but it also can increase the gas diffusion electrode (GDE) performance in ...
Masoumeh Javaheri
doaj   +1 more source

Molecular Conformation of Nafion Ionomer on Electrocatalyst Layer Prepared by Screen Printing Technique

open access: yesInternational Journal of Electrochemical Science, 2014
Preparations of Pt/CNT electrocatalyst layer in colloidal and solution state by screen printing techniques gave different molecular conformation of nafion ionomer. By this technique, low Pt- loaded (0.07-0.1 mg/cm2) and thin electrocatalyst were produced
R. Yudianti, H. Onggo, A. Syampurwadi
doaj   +1 more source

Platinum Nanoparticles Supported on Carbon Nanodots as Anode Catalysts for Direct Alcohol Fuel Cells

open access: yesInternational Journal of Electrochemical Science, 2017
Carbon nanodots (CNDs) were successfully synthesized employing a cheap and green method using oats as a starting material. The Pt/CNDs electrocatalyst was synthesized using carbon nanodots as a reductant and support material without adjusting the pH of ...
S. S Gwebu   +4 more
doaj   +1 more source

Hollow-Structure Pt-Ni Nanoparticle Electrocatalysts for Oxygen Reduction Reaction

open access: yesMolecules, 2022
An electrocatalyst with high oxygen reduction reaction (ORR) activity and high stability during start–stop operation is necessary. In this paper, hollow-structure Pt-Ni electrocatalysts are investigated as ORR catalysts.
Quan Wang   +5 more
doaj   +1 more source

Deep-Breathing Honeycomb-like Co-Nx-C Nanopolyhedron Bifunctional Oxygen Electrocatalysts for Rechargeable Zn-Air Batteries

open access: yesiScience, 2020
Summary: Metal organic framework (MOF) derivatives have been extensively used as bifunctional oxygen electrocatalysts. However, the utilization of active sites is still not satisfactory owing to the sluggish mass transport within their narrow pore ...
Zhaoqiang Li   +16 more
doaj   +1 more source

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