Results 171 to 180 of about 279,678 (332)

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee   +10 more
wiley   +1 more source

FT-IR Studies of Cerium Oxide Nanoparticles and Natural Zeolite Materials [PDF]

open access: gold, 2015
Oana Lelia Pop   +6 more
openalex   +1 more source

Endothelial Cells Angiogenesis in Sulfated Glycosaminoglycan (GAG) Hydrogels Enhanced by Bioactive Glass‐Released Ions

open access: yesAdvanced Functional Materials, EarlyView.
A mechanically tunable hydrogel composed of gelatin, chondroitin sulfate and laminin promotes angiogenesis in vitro without the supplement of growth factors. Endothelial cells morphogenesis was further enhanced by medium conditioned with bioactive glass 58S‐released ions (Ca and Si), thus offering a promising strategy to vascularize 3D tissue ...
Marco Piazzoni   +13 more
wiley   +1 more source

The Analysis, Identification and Treatment of an Amber Artifact

open access: yesArcheomatica, 2013
This study describes the identification and treatment of an amber necklace, which came into the conservation lab  of Conservation Art Service, with an opaque bloom caused by a previous cleaning with a household ammonia cleanser.
Niccolo Caldararo
doaj  

Unraveling the Potential of Organic Oregano and Tarragon Essential Oils: Profiling Composition, FT-IR and Bioactivities. [PDF]

open access: yesPlants (Basel), 2023
Vârban D   +13 more
europepmc   +1 more source

Transmission FT-IR spectroscopic analysis of human kidney stones in the Hyderabad region of Pakistan

open access: bronze, 2012
MUHAMMAD HUSSAN KHASKHELI   +3 more
openalex   +2 more sources

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