Results 91 to 100 of about 70,358 (296)

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Effect of lattice volume and strain on the conductivity of BaCeY-oxide ceramic proton conductors

, 2012
In-situ electrochemical impedance spectroscopy was used to study the effect of lattice volume and strain on the proton conductivity of the yttrium-doped barium cerate proton conductor by applying the hydrostatic pressure up to 1.25 GPa.
Artur Braun, Ashok, Azad, Bagdassarov, Braun, Braun, Coors, Duval, Duval, Guan, Hempelmann, Iwahara, Kreuer, Malavasi, Nikolai Bagdassarov, Norby, Norby, Qianli Chen, Rodriguez-Carvajal, Samgin A, Scherban, Songhak Yoon, Takeuchi, Thomas Graule, Thompson, Wakamura, Zhang   +26 more
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Nanoionics phenomenon in proton-conducting oxide: Effect of dispersion of nanosize platinum particles on electrical conduction properties

Science and Technology of Advanced Materials, 2007
High-temperature proton conductors are oxides in which low-valence cations are doped as electron acceptors; the incorporation of water molecules into the oxides results in the formation of protonic defects that act as charge carriers.
Hiroshige Matsumoto et al
doaj  

Advances in proton exchange membranes for wide-temperature-range fuel cells

Global Energy Interconnection
Proton exchange membranes (PEMs) play a central role in determining the efficiency, durability, and operational flexibility of PEM fuel cells (PEMFCs).
Yunjie Yang, Junxin Chen, Sai Liu, Xiang Ao, Haoliang Feng, Le Shi   +5 more
doaj   +1 more source

Theoretical optical and x-ray spectra of liquid and solid H_2O

, 2011
Theoretical optical and x-ray spectra of model structures of water and ice are calculated using a many-body perturbation theory, Bethe-Salpeter equation (BSE) approach implemented in the valence- and core-excitation codes AI2NBSE and OCEAN.
Kas, J., Rehr, J. J., Shirley, E. L., Vila, F., Vinson, J.   +4 more
core   +1 more source

Reducing Open‐Circuit Voltage Losses in Wide‐Bandgap FAPbBr3 Perovskite Solar Cells for Continuous Unassisted Light‐Driven Water Splitting

Advanced Functional Materials, EarlyView.
The combination of formamidinium thiocyanate and 1,3‐propane diammonium iodide for bulk and top‐surface passivation, and a ternary fullerene blend to improve energy band alignment, suppresses energy losses in wide‐bandgap FAPbBr3 perovskite solar cells.
Laura Bellini, Daniël Grosfeld, Bruno Branco, Guus J. W. Aalbers, Lana M. Kessels, Willemijn H. M. Remmerswaal, Nicolas Daub, Kunal Datta, Martijn M. Wienk, René A. J. Janssen   +9 more
wiley   +1 more source

Proton conductivity and luminiscence properties of lanthanide aminotriphosphonates [PDF]

, 2016
Metal phosphonates are multifunctional solids with tunable properties, such as internal H-bond networks, and high chemical and thermal stability [1]. In the present work, we describe the synthesis, structural characterization, luminescent properties ...
Angeli, Giasemi K., Bazaga-García, Montse, Cabeza-Diaz, Aurelio, Choquesillo-Lazarte, Duane, Demadis, Konstantinos D., Hix, Gary B., Losilla, E. R., Olivera-Pastor, Pascual, Papathanasiou, Konstantinos E., Salcedo, Inés R.   +9 more
core  

Fabrication and electrical transport properties of embedded graphite microwires in a diamond matrix

, 2017
Micrometer width and nanometer thick wires with different shapes were produced $\approx 3~\upmu$m below the surface of a diamond crystal using a microbeam of He$^+$ ions with 1.8~MeV energy.
Barzola-Quiquia, J., Böttner, J., Esquinazi, P., Estrela-Lopis, I., Lühmann, T., Meijer, J., Stiller, M., Wunderlich, R., Zoraghi, M.   +8 more
core   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source