Results 141 to 150 of about 44,658 (253)

Regio‐Selective Electrocatalysis in Single‐Wall Carbon Nanotubes: Platinum Inside for Hydrogen Evolution Reaction/Hydrogen Oxidation Reaction and Ruthenium Outside for Oxygen Evolution Reaction

open access: yesCarbon Energy, EarlyView.
A Pt‐in/Ru‐out single‐wall carbon nanotube architecture spatially separates HER/HOR and OER active sites, enabling high HER/HOR currents at low overpotential, durable OER activity, and strong resistance to Fe3+ poisoning, offering a promising bifunctional platform for unitized regenerative fuel cells.
Manoj Shanmugasundaram   +2 more
wiley   +1 more source

Irreversible Deactivation Mechanism of Propane Dehydrogenation Catalysts Unveiled by In Situ TEM: Roles of AlxCryO Solid Solutions

open access: yesCarbon Energy, EarlyView.
The deactivation of CrOx/Al2O3 by two stages under PDH is revealed via in situ TEM. Initially, CrOx particles disperse and transform into AlxCryO solid solutions that promote graphitic coke growth. Subsequently, the continuous migration of Cr results in the formation of Cr‐rich solid solutions that only partially revert under oxidative regeneration ...
Yu Wang   +10 more
wiley   +1 more source

Identification and growth rates comparison of divergent migratory contingents of Japanese eel (Anguilla japonica)

open access: yes, 2009
The strontium (Sr) and calcium (Ca) concentrations in the otoliths of the Japanese eels Anguilla japonica collected from China, Japan and Taiwan were measured by electron probe micro-analyzer.
Tzeng, Wann-Nian; Iizuka, Yoshiyuki; Shiao, Jen-Chieh; Yamada, Yoshiaki; Oka, Hideo P.
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X‐Ray Absorption Sensitivity at 5d$5d$ Edges of High‐Valent Light Actinides to Crystal‐Field Strength and Covalency Effects

open access: yesChemistry – A European Journal, EarlyView.
Analysis of x‐ray absorption spectra of U(VI) and U(V) oxides indicates an important role of U 5f−O$5f-\rm{O}$ 2p$2p$ charge transfer for increasing the 5f$5f$ occupancy and thereby affecting the ground state properties. ABSTRACT The 5f$5f$ states were probed in ThO2$\rm{ThO}_2$ and U(VI) and U(V) oxides using x‐ray absorption spectroscopy at the ...
Johan R. Vegelius   +2 more
wiley   +1 more source

eel grass

open access: yes, 1973
eel grassAll down around_ around this harbour, all eel grass, we call it -goose grass,eel grass,or whatever you might call it....YesJ.D.A.

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Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang   +3 more
wiley   +1 more source

eel-fishery

open access: yes, 1965
eel-fishery'I thinks the eel-fishery has pretty good prospects.' (Augus to October is the season.)Not usedNot usedWithdrawntarsey, yellow belliesChecked by Rebecca Nolan on Thu 12 Mar ...

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