Results 61 to 70 of about 33,984 (224)

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Engineering Unequal Antipolar Displacement in Ferromagnetic Layered Oxide Heterostructures

Advanced Materials, EarlyView.
Atomically precise superlattices of the double perovskites La2NiMnO6 and Sm2NiMnO6 are grown to engineer an unequal antipolar displacement of the La and Sm ions. These structural motifs are confirmed by the scanning transmission electron microscopy and first‐principles calculations.
Jonathan Spring, Natalya S. Fedorova, Alexander Vogel, Javier Herrero‐Martín, Evgenios Stylianidis, Pavlo Zubko, Jorge Íñiguez‐González, Marta D. Rossell, Marta Gibert   +8 more
wiley   +1 more source

Scalable Solar Evaporator Based on Bandgap Engineered CuMnCrO4 Spinel Oxide with Salt‐Resistant Property for Contaminated Seawater

Advanced Materials, EarlyView.
Incorporating multiple cations (Cu2⁺ and Cr3⁺) into the Mn3O4 spinel lattice strategically tunes the electronic structure, narrowing the bandgap from 2.3 to 1.49 eV. This enhances visible–NIR light absorption and photothermal conversion, enabling a high water evaporation rate of 4.1 kg m−2 h−1 under 1 sun.
Rana Muhammad Irfan, Sungdo Kim, Jin Young Lee, Ji‐Hyun Jang   +3 more
wiley   +1 more source

Photoluminescence and EPR Studies of ZnS Nanoparticles Co-Doped With Mn and Te [PDF]

Журнал нано- та електронної фізики, 2011
ZnS nanoparticles Co-doped with Mn and Te (x = 0.05 and 0.10) have been synthesized for the first time by chemical co-precipitation method, thiophenol is used to passivate the surface of the particles.
P. Sreedhara Reddy, S. Sambasivam, B.K. Reddy, A. Divya   +3 more
doaj  

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

Advanced Materials, EarlyView.
This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang, Jingling Zhu, Weiyang Xue, Yuting Wen, Zhongxing Zhang, Xia Song, Yuan Yu, Chenglin Sun, Huangzhao Wei, Jun Li   +9 more
wiley   +1 more source

Spin‐Dependent Photoluminescence in Carbon‐Based Quantum Dots

Advanced Materials, EarlyView.
Here we report, for the first time, room‐temperature magneto‐photoluminescence and optically detected electron spin‐resonance in carbon quantum dots (CQD). We perform measurements on a series of amino acid derived CQD at room temperature and demonstrate their sensing potential by detecting paramagnetic molecules in solution.
Erin S. Grant, Joseph F. Olorunyomi, Sam C. Scholten, Islay O. Robertson, Amanda N. Abraham, Nandish H. Srikantamurthy, Billy J. Murdoch, Edwin L. H. Maye, Blanca del Rosal, Alexander J. Healey, Cara M. Doherty, Philipp Reineck, Xavier Mulet, Jean‐Philippe Tetienne, David A. Broadway   +14 more
wiley   +1 more source

Decoration of Carbon Nanotubes with Cerium (IV) Oxide

Хімія, фізика та технологія поверхні, 2011
Cerium (IV) oxide (ceria) nanoparticles, 6–10 nm in size, supported on carbon nanotubes (CNTs) were prepared by a chemical reaction between Ce(NO3)3 and NaOH. The effective processing parameters of ceria particles size were discussed.
S. Ya. Brichka, I. B. Yanchuk, A. A. Konchits, S. P. Kolesnik, A. F. Yefanov, A. V. Brichka, M. T. Kartel   +6 more
doaj  

2D MOF with Intrinsic Porosity for Colorimetric Volatile Organic Compounds (VOCs) Detection

Advanced Materials, EarlyView.
An uncommon 2D MOF with intrinsic in‐plane porosity that can be mechanically exfoliated undergoes a distinct and reversible colour change upon exposure to various volatile organic compounds. ABSTRACT In this work, we report an uncommon 2D metal–organic framework (MOF) with intrinsic in‐plane porosity that undergoes a distinct and reversible colour ...
Sergio R. Gamarra, Alberto Fernández‐Alarcón, Joaquín Calbo, Enrique Ortí, Guillermo Mínguez Espallargas   +4 more
wiley   +1 more source

Paramagnetic properties and antioxidant activity of metal-containing bionanocomposites based on humic substances [PDF]

Magnetic Resonance in Solids, 2016
Paramagnetic properties of novel bioactive nanocomposite materials based on humic substances and the precious metals (Ag, Au) are investigated by electron paramagnetic resonance and compared to their antioxidant properties.
Tikhonov N.I., Khutsishvili S.S., Lesnichaya M.V., Dolmaa G., Vakul’skaya T.I., Aleksandrova G.P., Sukhov B.G.
doaj