Results 111 to 120 of about 17,132 (311)
X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites
Advanced Functional Materials, EarlyView.We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim +21 more
wiley +1 more source
Teshugang, 2009 Effects of normal nitriding process with 280 Pa at 560 ℃ for 12 h and cycling plasma nil rich: g process with 170 Pa at 560 °C for 3 h then quick cooling to ambient temperature on structure, hardness, gradient of hardness, and wear resistance of nitride ...
陈玮, 王蕾, 付勇涛, 严翔
doaj
Nitriding of titanium and its alloys by N2, NH3 or mixtures of N2 + H2 in a dc arc plasma at low pressures ( or = to torr) [PDF]
The dc glow discharges in different gas mixtures of Ar + N2, Ar + NH3 or Ar + N2 + H2 result in the surface nitriding of Ti metal and its alloy (Ti6Al4V).
Avni, R.
core +1 more source
Tracing Sub‐Monolayer Contamination on Wafer‐Scale 2D Materials
Advanced Functional Materials, EarlyView.Sub‐monolayer adventitious carbon contamination limits the performance and reproducibility of 2D material‐based devices. This study demonstrates scanning helium microscopy (SHeM) as a non‐destructive, ultra‐sensitive tool for wafer‐scale imaging of surface cleanliness.
Chenyang Zhao +7 more
wiley +1 more source
Plasma variables and tribological properties of coatings in low pressure (0.1 - 10.0 torr) plasma systems [PDF]
A detailed treatment is presented of the dialog known as plasma surface interactions (PSI) with respect to the coating process and its tribological behavior. Adsorption, morphological changes, defect formation, sputtering, chemical etching, and secondary
Avni, R., Spalvins, T.
core +1 more source
Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity
Advanced Functional Materials, EarlyView.This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su +5 more
wiley +1 more source
High-quality silicon nitride ceramic powders by direct nitriding method
Fenmo yejin jishuHigh-quality silicon nitride ceramic powders were prepared by direct nitriding method with silicon powders as the raw materials. The effects of nitriding temperature, heating rate, particle size of silicon powders, and dosage of diluent on the silicon ...
ZHAO Liyan +6 more
doaj +1 more source
Reaction bonded silicon nitride prepared from wet attrition-milled silicon [PDF]
Silicon powder wet milled in heptane was dried, compacted into test bar shape, helium-sintered, and then reaction bonded in nitrogen-4 volume percent hydrogen. As-nitrided bend strengths averaged approximately 290 MPa at both room temperature and 1400 C.
Glasgow, T. K. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.A MXene/PEDOT coating enables multimodal functionality and dual‐analyte detection of dopamine and serotonin in flexible microelectrode arrays while enhancing electrophysiological recording quality. The anti‐fouling, low‐impedance interface overcomes key limitations of conventional coatings, providing a robust and versatile platform to investigate the ...
Ilaria Gatti +8 more
wiley +1 more source
Effect of processing parameters on reaction bonding of silicon nitride [PDF]
Reaction bonded silicon nitride was developed. The relationship between the various processing parameters and the resulting microstructures was to design and synthesize reaction bonded materials with improved room temperature mechanical ...
Gregory, O. J. +2 more
core +1 more source