Results 91 to 100 of about 634,511 (275)

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

PWM–PFM Hybrid Control of Three-Port LLC Resonant Converter for DC Microgrids

Energies
This article proposes a high-efficiency isolated three-port resonant converter for DC microgrids, combining a dual active bridge (DAB)–LLC topology with hybrid Pulse Width Modulat-Pulse Frequency Modulation (PWM-PFM) phase shift control.
Yi Zhang, Xiangjie Liu, Jiamian Wang, Baojiang Wu, Feilong Liu, Junfeng Xie   +5 more
doaj   +1 more source

Effects of Environmental Gas and Trace Water on the Friction of DLC Sliding with Metals

Micromachines, 2017
This paper describes an experimental study on the friction of a-C:H diamond-like carbon (DLC) and ta-C DLC coatings in gas with different concentration of trace water. Pin-on-disk sliding experiments were conducted with DLC coated disks and aluminum pins
Yoshihiro Kurahashi, Hiroyoshi Tanaka, Masaya Terayama, Joichi Sugimura   +3 more
doaj   +1 more source

Technical and economic aspects of hydrogen storage in metal hydrides [PDF]

The recovery of hydrogen from such metal hydrides as LiH, MgH2, TiH2, CaH2 and FeTiH compounds is studied, with the aim of evaluating the viability of the technique for the storage of hydrogen fuel.
Schmitt, R.
core   +1 more source

Light‐Controlled Reversible Coassembly of Hybrid Functional Nanostructures

Advanced Functional Materials, EarlyView.
Light‐responsive hybrid nanostructures are formed by coassembling azobenzene‐ and PAH‐functionalized nanoparticles through reversible an tunable π interactions. The system enables tunable coupling between distinct components such as gold and magnetite or carbon nanotubes, producing switchable optical and magnetic properties under light and magnetic ...
Michal Sawczyk, Yanxiao Han, Soumyo Sen, Bartosz Smereczyński, Petr Král, Michał M. Wójcik   +5 more
wiley   +1 more source

The effect of molten salt thermal storage scheme on thermal economy and peaking performance of thermal power units

Xi'an Gongcheng Daxue xuebao
In order to study the effect of coupled molten salt thermal storage system on thermal economy and peaking performance of thermal power units under the condition of simultaneous supply of industrial steam and heating steam, Ebsilon software was used to ...
LI Hongbo, WANG Shun, JING Rui, JIA Zhenguo, GUAN Hongjun, HE Suoying, ZHANG Liqiang, GAO Ming   +7 more
doaj   +1 more source

Effects of Residual Gas on Tribochemical Reactions of SUJ2 Steel in Vacuum and in Argon Gas Atmosphere

Tribology Online, 2009
To analyze the mechanisms of tribochemical reactions occurring between atmospheric gases and materials induced by friction, the authors have developed a friction test system with integrated XPS.
Hiroki Mano, Koji Miyake, Miki Nakano, Atsushi Korenaga, Takashi Murakami, Shinya Sasaki, Joichi Sugimura   +6 more
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

New Experiment System for Sliding Tests in Hydrogen and Surface Analysis with Transfer Vessel

Tribology Online, 2009
A new tribo experiment system is developed for sliding tests under high purity gas environments including hydrogen. It uses a transfer vessel such that surface oxidation does not substantially occur during transfer of specimens to surface analyzers.
Hiroyoshi Tanaka, Yoshinori Sawae, Kanao Fukuda, Shigemasa Yamagami, Takehiro Morita, Naoshi Izumi, Joichi Sugimura   +6 more
doaj   +1 more source

Suppressing diborane production during the hydrogen release of metal borohydrides: The example of alloyed Al(BH$_4$)$_3$

, 2016
Aluminum borohydride (Al(BH$_4$)$_3$) is an example of a promising hydrogen storage material with exceptional hydrogen densities by weight and volume and a low hydrogen desorption temperature.
Harrison, D., Thonhauser, T.
core   +1 more source