Results 91 to 100 of about 2,732,428 (277)

Tribological Behaviour of Bonded Solid Lubricant Film in Air and in Vacuum

Communications, 2000
The friction tests of inorganic bonded composite solid lubricant films (WS2, graphite, BN) were performed in laboratory air and in 10-4 Pa vacuum. The wear traces and transfer films were characterized by scanning electron microscopy (SEM), and Auger ...
Changsheng Li, Yoshinori Takeichi, Shinya Shimizu, Masao Uemura, Marian Dzimko, Yuko Tsuya   +5 more
doaj   +1 more source

NbN Broadband Plasmonic Absorbers for Efficient Hot‐Carrier Injection Toward Improved Solar‐to‐Hydrogen Conversion

Advanced Science, EarlyView.
Niobium nitride (NbN) broadband plasmonic metasurface absorbers provide an efficient platform for solar‐energy conversion through hot‐carrier injection. Quasi‐epitaxial NbN features a low work function of 4.0 eV, reducing the interfacial injection barrier and facilitating charge transfer into adjacent photocatalysts.
Tzu‐Yu Peng, Tse‐Fu Huang, Takeshi Yamaguchi, Jia‐Wern Chen, Hsing‐Yu Kuo, Ying‐Rang Zhuang, Hung Wei Shiu, Seongmin Im, Yang Zhao, Takuo Tanaka, Ho‐Hsiu Chou, Yu‐Jung Lu   +11 more
wiley   +1 more source

Natural Sunlight IR‐Driven Highly Efficient Synthesis of Acetaldehyde From Bioethanol Over Cu/Fe2O3

Angewandte Chemie, EarlyView.
This work reports a Cu/Fe2O3 catalyst for the conversion of bioethanol into valuable acetaldehyde and green hydrogen under both infrared (IR) light and natural sunlight. This IR‐driven system sets a new performance benchmark, with TON and initial TOF enhanced by at least one order of magnitude, enabled by a constructed IR photon‐to‐phonon channel and ...
Xiyi Li, Jiangting Zhao, Junjun Guo, Ze‐Kai Yu, Enqi Chen, Qiong Liu, Tieou Wang, Asterios Gavriilidis, Xue‐Qing Gong, Yang Lan, Junwang Tang   +10 more
wiley   +2 more sources

Co‐Ligand‐Induced Electronic Modulation Controls Substrate Adsorption and Selectivity in Biomass Electrooxidation

Advanced Science, EarlyView.
A molecular design strategy is reported that introduces distinct anionic co‐ligands into Cu‐based catalysts to modulate the electronic density of the metal center and, consequently, its interaction with both OHads and HMF. The work establishes co‐ligand engineering as an effective strategy for precise interfacial adsorption control in electrocatalysis,
Chen Gao, Bin Han, Shuai Chen, Shuai Yan, Ralf Weisbarth, Jorg Daniels, Nikolay Kornienko   +6 more
wiley   +1 more source

Magnesium‐Retention Assisted Synthesis of High‐Performance Zintl Thermoelectrics

Angewandte Chemie, EarlyView.
Mg volatilization and chemical instability during high‐temperature synthesis hinder the scalable fabrication of Mg‐based thermoelectrics. Here, a magnesium‐retention assisted synthesis (MRAS) strategy stabilizes Mg using a sacrificial Mg reservoir and an inert‐gas‐regulated melting environment.
Boxuan Hu, Xiao‐Lei Shi, Tianyi Cao, Nanhai Li, Chao Zhang, Sen Wang, Siqi Liu, Meng Li, Dmitri Golberg, Zhi‐Gang Chen   +9 more
wiley   +2 more sources

High resolution core electron spectroscopy of atoms and molecules on the Finnish beamline at the MAX laboratory

, 1995
A brief survey of high resolution gas phase photo- and resonance Auger electron spectroscopy on the newly constructed BL 51 at the MAX laboratory is given.
Aksela, H,, Svensson, S,, Aksela, S,
core  

Weakly Coordinated Solvent Network‐Induced Ternary Water‐Deficient Eutectic Electrolytes for Low‐Polarization Zn Anodes

Advanced Science, EarlyView.
A water‐deficient ternary eutectic electrolyte employs weakly coordinating solvents to decouple strong solvation interactions, constructing a loose and dynamic solvation network. This optimized solvation structure accelerates Zn2+ transport and interfacial kinetics, promotes robust SEI formation, and ultimately enables highly stable and reversible Zn ...
Quancai Li, Jing Liang, Jiayu Wang, Qian Wang, Hehe Ren, Ziyi Gong, Vellaisamy A. L. Roy, Wei Wu   +7 more
wiley   +1 more source

Decoding Gas Evolution Pathways and Interfacial Chemistry in Layered Oxide Cathodes for Safer Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Gas evolution behaviors of sodium layered oxide cathodes with varying compositions, cutoff voltages, dopants, and particle sizes/morphologies have been systematically investigated by online electrochemical mass spectrometry. The fundamental outgassing mechanisms of sodium‐based cathodes compared to lithium‐based cathodes have been elucidated.
Chen Liu, Zehao Cui, Arumugam Manthiram
wiley   +1 more source

Reveal Non‐Uniform Passivation on Lithium Metal Anode With Operando Spectroscopic Ellipsometry

Advanced Energy Materials, EarlyView.
In‐operando spectroscopic ellipsometry reveals how nucleation and crystallographic orientation govern the non‐uniform growth of native passivation films on lithium metal. Time‐resolved thickness mapping captures island formation and coalescence, while orientation‐dependent measurements show that the equilibrium film on Li(110) is approximately half as ...
Jianyu Li, Hanrui Zhang, Dongliang Chen, Feifei Shi   +3 more
wiley   +1 more source

Auger Electron Spectroscopy Calibration [PDF]

, 2003
This study presents a brief introduction to Auger Spectroscopy with experimental results taken from a spectrometer donated by Kodak in 2000. The tool has been calibrated using materials with high electron energy signals, primarily Titanium and Gold ...
Fattu, Michael David
core   +1 more source