Results 61 to 70 of about 484,156 (381)

ML-Driven Contamination Classification for XPS Analysis of PLA Surfaces

Current Directions in Biomedical Engineering
As materials such as Poly-Lactic Acid (PLA) have become a significant part of medical production and research, it is important that the resulting products adhere to strict regulations concerning contaminations.
Orth André, Höfer Hawo H., Wildersinn Leonie, Jeschull Fabian, Reischl Markus   +4 more
doaj   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Photoemission and x-ray absorption studies of valence states in (Ni,Zn,Fe,Ti)$_{3}$O$_{4}$ thin films exhibiting photo-induced magnetization

, 2007
By means of photoemission and x-ray absorption spectroscopy, we have studied the electronic structure of (Ni,Zn,Fe,Ti)$_{3}$O$_{4}$ thin films, which exhibits a cluster glass behavior with a spin-freezing temperature $T_f$ of $\sim 230$ K and photo ...
A. Fujimori, G. S. Song, Graat P. C. J., H. Tabata, H. Yamagami, K. Terai, M. Kobayashi, M. Seki, M. Takizawa, S.-I. Fujimori, T. Kawai, T. Okane, Wagner C. D., Y. Ooki, Y. Saitoh, Y. Takeda   +15 more
core   +1 more source

XPS study of the chemical structure of the nickel/silicon interface [PDF]

, 1980
The chemical nature of the Ni/Si, Ni/Ni_(2)Si and Si/Ni_(2)Si interfaces have been investigated using x‐ray photoelectron spectroscopy. Peak position, line shapes, and envelope intensities are used to probe the compositional structure of these systems ...
Grunthaner, F. J., Grunthaner, P. J., Mayer, J. W.   +2 more
core   +1 more source

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Surface Core-Level Shifts at an oxygen-rich Ru Surface: O/Ru(0001) vs. RuO_2(110)

, 2001
We present density-functional theory calculations of Ru 3d and O 1s surface core-level shifts (SCLSs) at an oxygen-rich Ru(0001) surface, namely for the O(1x1)/Ru(0001) chemisorption phase and for two surface terminations of fully oxidized RuO_2(110 ...
Atanasoska, Böttcher, Böttcher, Böttcher, Böttcher, Chan, Cox, Egelhoff, Ganduglia-Pirovano, Janak, Karsten Reuter, Kim, Kim, Kim, Kim, Kim, Kohler, Kotani, Kotani, Kotani, Kotz, Lewerenz, Lizzit, Matthias Scheffler, Menzel, O'Grady, Over, Peden, Perdew, Perdew, Petersen, Sorantin, Spanjaard, Stampfl, Stampfl   +34 more
core   +1 more source

Electrochemical activation of molecular nitrogen at the Ir/YSZ interface. [PDF]

, 2011
Nitrogen is often used as an inert background atmosphere in solid state studies of electrode and reaction kinetics, of solid state studies of transport phenomena, and in applications e.g. solid oxide fuel cells (SOFC), sensors and membranes.
Alexei Barinov, Arias, Aswahi, Auffermann, Badrinarayanan, Bertoti, Bjoern Luerssen, Bredow, Bredow, Chebotin, Chen, Cruz, Doniach, Eva Mutoro, Futsuhara, Gendre, Gerson, Gonzalez, Guenther, Gutzov, Hara, Head-Gordon, Hughes, Ilia Valov, Jansen, Jürgen Janek, Kilo, Kumar, Ladas, Lee, Lerch, Lerch, Lerch, Lindgrena, Luca Gregoratti, Luerßen, Majumdar, Manfred Martin, Martin, Milosev, Milosev, Morant, Neophytides, Nickel, Parmigiani, Pavel Dudin, Pietro, Prots, Re, Reimann, Roger A. De Souza, Rödel, Sebastian Günther, Soto, Steeb, Taylor, Thomas Bredow, Trofimov, Valov, Valov, Valov, Valov, Wendel, Wiame, Wilcockson, Zhang   +65 more
core   +3 more sources

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Ferromagnetic Behavior of High Purity ZnO nanoparticles

, 2010
ZnO nanoparticles with Wurtzite structure were prepared by chemical methods at low temperature in aqueous solution. Nanoparticles are in the range from about 10 to 30 nm.
Chen, Hong, Howard, Islam, Ismail, Janotti, Karmakar, Kisi, Ma, Major, Nogues, Ozgur, Panchakarla, Potzger, R. Escamilla, R. Escudero, Scofield, Sundaresan, Sundaresan, Szörényi, Wagner, Wang, Xiao, Zhang, Zhou   +24 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source