Results 61 to 70 of about 31,060 (253)

Use of PtAu/C electrocatalysts toward formate oxidation: electrochemical and fuel cell considerations

open access: yesMaterials for Renewable and Sustainable Energy, 2016
This study reports the use of PtAu/C electrocatalysts with different atomic ratios (90:10, 70:30 and 50:50) supported on Vulcan XC 72 carbon and prepared by the sodium borohydride method toward formate electro-oxidation in alkaline media.
Sirlane G. da Silva   +4 more
doaj   +1 more source

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

open access: yesAdvanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo   +8 more
wiley   +1 more source

Development of polymeric hollow fiber membranes containing catalytic metal nanoparticules. [PDF]

open access: yes, 2010
Metal nanoparticles (MNPs) have unique physico-chemical properties advantageous for catalytic applications which differ from bulk material. However, the main drawback of MNPs is their insufficient stability due to a high trend for aggregation.
Bruening, Merlin L.   +5 more
core   +4 more sources

Boosting Photo‐Pyroelectric Effect via Tunable Polarization and Interfacial Defect Engineering

open access: yesAdvanced Science, EarlyView.
This study reports Ba(Ti0.85Zr0.15)O3 nanocatalysts with enhanced polarization and oxygen‐vacancy‐rich interfaces for efficient NIR‐II photo‐pyroelectric therapy. Zr doping boosts the pyroelectric coefficient and accelerates polarization switching, while oxygen vacancies improve photothermal conversion and surface reactivity.
Yanli Huang   +13 more
wiley   +1 more source

Glycerol and Ethanol Oxidation in Alkaline Medium Using PtCu/C Electrocatalysts

open access: yesInternational Journal of Electrochemical Science, 2018
The performance of platinum-copper electrocatalysts synthesized in different ratios (100:0, 90:10, 70:30, 50:50, and 0:100), using a borohydride reduction method for electrochemical oxidation of different fuels, was evaluated in an alkaline direct ...
C.A. Ottoni   +5 more
doaj   +1 more source

Foam Synthesis of Nickel/Nickel (II) Hydroxide Nanoflakes Using Double Templates of Surfactant Liquid Crystal and Hydrogen Bubbles: A High-Performance Catalyst for Methanol Electrooxidation in Alkaline Solution

open access: yesNanomaterials, 2022
This work demonstrates the chemical synthesis of two-dimensional nanoflakes of mesoporous nickel/nickel (II) hydroxide (Ni/Ni(OH)2-NFs) using double templates of surfactant self-assembled thin-film and foam of hydrogen bubbles produced by sodium ...
Amani M. Bamuqaddam   +5 more
doaj   +1 more source

Fabrication of Composite Cathode for All‐Solid‐State Sodium Batteries

open access: yesAdvanced Energy Materials, EarlyView.
The design of composite cathodes for all‐solid‐state sodium batteries must address three critical challenges—interfacial side reactions, interfacial delamination, and highly tortuous transport pathways. This work outlines structural and interfacial strategies to optimize ion transport and mechanical stability, enabling durable, and high‐performance ...
Gaoming Sun   +6 more
wiley   +1 more source

PdSn/C Electrocatalysts with Different Atomic Ratios for Ethanol Electro-Oxidation in Alkaline Media

open access: yesInternational Journal of Electrochemical Science, 2014
PdSn/C with different Pd:Sn atomic ratios (90:10, 80:20. 70:30, 60:40 and 50:50) were prepared by borohydride reduction and tested for ethanol electro-oxidation in alkaline media.
Sirlane G. da Silva   +6 more
doaj   +1 more source

Selective Electrolysis of Water Under Artificial Seawater Conditions Using Transition Metal Borate Anodes

open access: yesAdvanced Energy Materials, EarlyView.
The borate‐based cobalt‐iron catalyst promotes selective oxidation of water rather than chlorine evolution reaction during electrolysis of seawater. When integrated into a zero‐gap electrolyzer prototype, this catalyst supports robust splitting of artificial seawater into oxygen and hydrogen on an extended timescale.
Ananta R. Fareza   +10 more
wiley   +1 more source

Preparation of PdPtSn/C-Sb2O5.SnO2 electrocatalysts by Borohydride Reduction for Ethanol Electro-Oxidation in Alkaline Medium

open access: yesInternational Journal of Electrochemical Science, 2011
PdPt/C-Sb2O5.SnO2 (80:20), PdPtSn/C-Sb2O5.SnO2 (80:10:10) and PdPtSn/C-Sb2O5.SnO2 (90:05:05) electrocatalysts were prepared in a single step using H2PtCl6.6H2O, Pd(NO3)2 2H2O and SnCl2.2H2O as metal sources, sodium borohydride as reducing agent and a ...
Ricardo Marcelo Piasentin   +3 more
doaj   +1 more source

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