Results 101 to 110 of about 202,648 (320)

Mass Spectrometric Study on 9-Fluorenylmethyloxycarbonyl Group Removal Assisted by 2-Methoxyacetic Acid in Gas Phase [PDF]

Zhipu Xuebao
The detachment of 9-fluorenylmethyloxycarbonyl (Fmoc) from the amino group is widely performed in chemical synthesis reactions, involving peptides, nucleosides, polymers and some other organic compounds.
GAO Xiao-fei1, YAO Ze-hua1, DONG Mao-you1, CHEN Xiang-zhao2
doaj   +1 more source

Z‐Scheme Water Splitting Systems Based on Solid‐State Electron Conductors

Advanced Functional Materials, EarlyView.
This review examines the latest advances in Z‐scheme overall water splitting (OWS) systems for solar hydrogen production. These systems consist of suspended or immobilized hydrogen evolution photocatalysts (HEPs) and oxygen evolution photocatalysts (OEPs).
Chen Gu, Takashi Hisatomi, Tsuyoshi Takata, Kazunari Domen   +3 more
wiley   +1 more source

Hydrogen transport in superionic system Rb3H(SeO4)2: a revised cooperative migration mechanism

, 2011
We performed density functional studies of electronic properties and mechanisms of hydrogen transport in Rb3H(SeO4)2 crystal which represents technologically promising class M3H(XO4)2 of proton conductors (M=Rb,Cs, NH4; X=S,Se).
A. I. Baranov, A. I. Baranov, A. Pawlowski, A. Pietraszko, B. Hilczer, B. V. Merinov, B. V. Merinov, B. V. Merinov, H. Jonsson, I. V. Stasyuk, I. V. Stasyuk, J. Tollefson, M. Polomska, N. Pavlenko, P. Blaha   +14 more
core   +1 more source

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Defects Passivation and Performance Enhancement of AlGaN/GaN HEMTs by Supercritical Hydrogen Treatment

IEEE Journal of the Electron Devices Society
In this paper, supercritical hydrogen treatment is used to passivate the defects of normally-on type AlGaN/GaN high electron mobility transistors. By comparing the electrical characteristics of devices before and after the experiment, the treated devices
J. K. Lian, Y. Q. Chen, C. Liu, X. Y. Zhang   +3 more
doaj   +1 more source

Effects of hole self-trapping by polarons on transport and negative bias illumination stress in amorphous-IGZO

, 2017
The effects of hole injection in amorphous-IGZO is analyzed by means of first-principles calculations. The injection of holes in the valence band tail states leads to their capture as a polaron, with high self-trapping energies (from 0.44 to 1.15 eV ...
A. de Jamblinne de Meux, G. Pourtois, J. Genoe, Jónsson H., P. Heremans   +4 more
core   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

Advanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa, Moisés A. de Araújo, Joaquim Puigdollers, Pablo Ortega, Teresa Andreu, Cristobal Voz, Edgardo Saucedo, Lucia H. Mascaro   +7 more
wiley   +1 more source

Synthesis of Monothiacalix[4]arene Using the Fragment Condensation Approach

Molecules
The article describes a simple and scalable preparation of 2-monothiacalix[4]arene 7, the simplest representative of the mixed-bridged (CH2 and S) calix[4]arenes.
Daniel Kortus, Oliver Moravec, Hynek Varga, Michal Churý, Kamil Mamleev, Jan Čejka, Hana Dvořáková, Pavel Lhoták   +7 more
doaj   +1 more source

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

Advanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler, Hesam Makki, Dorothee Silbernagl, Mathias Dimde, Kai Ludwig, Bengt E. Tegner, Christopher Greve, Konstantin Rausch, Eva M. Herzig, Anna Köhler, Alex J. Plajer   +10 more
wiley   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source