Results 111 to 120 of about 34,772 (314)

Dilithium disodium nickel(II) cyclohexaphosphate dodecahydrate, Li2Na2NiP6O18·12H2O

open access: yesActa Crystallographica Section E, 2012
The crystal structure of Li2Na2NiP6O18·12H2O is characterized by the presence of six-membered P6O186− phosphate ring anions (internal symmetry -1) having a chair conformation and three different cations, viz.
Sonia Abid   +2 more
doaj   +1 more source

Heteroatom‐Engineering Promoted Co9S8 Bi‐functional Electrocatalyst for Hydrazine‐Assisted Hydrogen Production at Industrial Current Density

open access: yesAdvanced Functional Materials, EarlyView.
Fe and P co‐doped Co9S8 nanocorals (Fe, P‐Co9S8) are successfully synthesized by a heteroatom engineering strategy, which exhibit outstanding bifunctional electrocatalytic performance for both the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR).
Yuying Meng   +8 more
wiley   +1 more source

NEW ORGANO-AND HALOTIN (IV) WITH EDTA: SYNTHESIS AND INFRARED STUDY

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2015
Nine acidic or neutral ethylenediaminetetraacetato [H2Y2-, H3Y- or Y4-] containing adducts and derivatives have been synthesized and studied by infrared.
SERIGNE CISSE   +2 more
doaj  

Hybrid Microdiscs for Magnetically Induced Non‐Cytotoxic Thermal Actuation and Programmable Biomolecule Delivery

open access: yesAdvanced Functional Materials, EarlyView.
Hybrid magnetic microdiscs with customizable size and composition are engineered through refined photolithography and LbL assembly. Embedded Fe3O4 nanoparticles enable localized, non‐cytotoxic heating, while protein cargos can be incorporated in tunable quantities.
Daniela Iglesias‐Rojas   +13 more
wiley   +1 more source

Poly[[μ-aqua-triaqua[μ6-1,3,4,6-tetrakis(carboxylatomethyl)-7,8-diphenylglycoluril]dizinc] monohydrate]

open access: yesActa Crystallographica Section E, 2011
In the crystal structure of the title coordination polymer, {[Zn2(C24H18N4O10)(H2O)4]·H2O}n, the molecular building block (MBB), viz [Zn2(CO2)4(H2O)4], comprises two ZnII cations, each bridged by three carboxylate groups from different ligand ...
Chuan-Qiang Li   +3 more
doaj   +1 more source

First Principles Calculations of Ionic Vibrational Frequencies in PbMg1/3Nb2/3O3

open access: yes, 2003
Lattice dynamics for several ordered supercells with composition PbMg1/3Nb2/3O (PMN) were calculated with first-principles frozen phonon methods. Nominal symmetries of the supercells studied are reduced by lattice instabilities.
Burton, E. P.   +2 more
core   +1 more source

EPR spectroscopy of iron- and nickel-doped [ZnAl]-layered double hydroxides: modeling active sites in heterogeneous water oxidation catalysts [PDF]

open access: yes, 2020
Iron-doped nickel layered double hydroxides (LDHs) are among the most active heterogeneous water oxidation catalysts. Due to inter-spin interactions, however, the high density of magnetic centers results in line-broadening in magnetic resonance spectra ...
Britt, R. David   +4 more
core  

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

open access: yesAdvanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou   +8 more
wiley   +1 more source

Ordering of tetrahedral and octahedral layers in synthetic lepidolites and Li-muscovites: two-dimensional {1H} → 29Si ∕ 27Al CPMAS HETCOR and {19F} → 29Si ∕ 27Al CPMAS HETCOR spectroscopy [PDF]

open access: yesEuropean Journal of Mineralogy
Cationic ordering in the octahedral and tetrahedral sheets of synthetic lepidolites with composition K(LixAl3−x)[Si2xAl4−2xO10](OH)yF2−y and Li-muscovites with K(LixAl2-x/3□1-2x/3)[Si3AlO10](OH)yF2−y has been investigated using two-dimensional (2-D) {1H ...
M. Fechtelkord, L. Sulcek
doaj   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

open access: yesAdvanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante   +17 more
wiley   +1 more source

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