Results 91 to 100 of about 235,631 (302)

Composition and Resulting Band Alignment at the TiO2/InP Heterointerface: A Fundamental Study Combining Photoemission Spectroscopy and Theory

Advanced Functional Materials, EarlyView.
The chemical composition and band alignment are systematically investigated at the TiO2/InP heterointerface. Thin TiO2 films are deposited by ALD on atomically ordered, P‐terminated p‐InP(100). By combining UPS, XPS, and ab initio molecular dynamics, the atomistic structure and electronic alignment are revealed.
Mohammad Amin Zare Pour, Muhammad Nawaz Qaisrani, Christian Höhn, Johannes Laurenz Wolf, Negin Mogharehabed, Jennifer Velazquez Rojas, Wolfram Jaegermann, Erich Runge, Roel van de Krol, Thomas Hannappel, Christian Dreßler, Agnieszka Paszuk   +11 more
wiley   +1 more source

Charge transfer and weak bonding between molecular oxygen and graphene zigzag edges at low temperatures [PDF]

, 2016
Electron paramagnetic resonance (EPR) study of air-physisorbed defective carbon nano-onions evidences in favor of microwave assisted formation of weakly-bound paramagnetic complexes comprising negatively-charged O2- ions and edge carbon atoms carrying pi-
Boukhvalov, D. W., Enoki, T., Hayashi, T., Osipov, V. Yu., Shames, A. I., Takai, K.   +5 more
core   +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

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

Ultraweak Chemiluminescence from Oxygen Species Adsorbed on the Surface of Saccharides

BUNSEKI KAGAKU, 2005
多糖類の一種であるセルロースは，食品添加物として幅広く使用されているだけでなく，医薬品における賦形剤としてもはん用されている．糖類や穀物製品が自動酸化により極微弱化学発光（CL）を示すことが報告されているが，本研究では，セルロースと糖類に着目し，化学構造と発光の関係及びその発光メカニズムを検討した．9種類の糖を対象とし，極微弱化学発光法を用いて熱励起及び光励起によるCL強度及びCLスペクトルを測定した．また，半経験的分子軌道法（MOPAC）を用いて，糖類に対する酸素吸着のエンタルピー変化を計算し，発光メカニズムの理論的解明を行った．得られた知見より，糖類の極微弱化学発光には，糖類表面に吸着した酸素が関与していることが明らかになった．CL法は，自動酸化だけでなく ...
Takayuki TAMEFUSA, Jun-ichi KIMURA, Rie ITO, Yoshihiro YOSHIMURA, Koichi SAITO, Hiroyuki NAKAZAWA   +5 more
openaire   +2 more sources

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

Structural stability during remelting of foundry binary alloys

Литьë и металлургия
A nanostructural mechanism of structural stability during remelting of foundry binary alloys has been developed. This mechanism is determined by the stability of the centers of crystallization of microcrystals of α‑phases and β‑phases.
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source

How Adsorbed Oxygen Atoms Inhibit Hydrogen Dissociation on Tungsten Surfaces. [PDF]

J Phys Chem Lett, 2023
Rodríguez-Fernández A, Bonnet L, Larrégaray P, Díez Muiño R.   +3 more
europepmc   +1 more source

Characterization of Water Dissociation on $\alpha$-Al$_{2}$O$_{3}$$(1\bar{1}02)$: Theory and Experiment

, 2016
The interaction of water with $\alpha$-alumina (i.e. $\alpha$-Al$_{2}$O$_{3}$ surfaces is important in a variety of applications and a useful model for the interaction of water with environmentally abundant aluminosilicate phases.
Campen, R. Kramer, Kirsch, Harald, Saalfrank, Peter, Tong, Yujin, Wirth, Jonas, Wlosczyk, Sebastian   +5 more
core   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source