Results 101 to 110 of about 1,832,454 (376)
H2 PERMEATION BEHAVIOR OF Cr2AlC AND Ti2AlC MAX PHASE COATED ZIRCALOY-4 BY NEUTRON RADIOGRAPHY
Acta Polytechnica, 2018 Hydrogen uptake by nuclear fuel claddings during normal operation as well as loss of coolant during design basis and severe accidents beyond design basis has a high safety relevance because hydrogen degrade the mechanical properties of the zirconium ...
Chongchong Tang +5 more
doaj +1 more source
Advanced Functional Materials, EarlyView.A monolayer graphene/phosphoric‐acid mixed proton‐electron conducting membrane combines proton‐conducting nanoconfined acid channels with electron‐conducting graphene nanosheets for efficient high‐temperature hydrogen purification. The membrane achieves nearly 100% H2/CO2 selectivity and 69 GPU hydrogen permeance at 250°C, arising from synergistic ...
Kaiqiang He +8 more
wiley +1 more source
International Journal of Electrochemical Science, 2018 In this study, the effect of temperature on the hydrogen permeation of pipeline steel in wet H2S environments was studied. The steady-state permeation current density, steady-state flux, and the permeation rate increased with increasing temperature.
Zhu Wang +6 more
doaj +1 more source
Surface effects on hydrogen permeation through Ti-14Al-21Nb alloy [PDF]
Hydrogen transport through Ti-14Al-21Nb (wt percent) alloy is measured using ultrahigh vacuum permeation techniques over the temperature range of 500 to 900 C and hydrogen pressure range of 0.25 to 10 torr.
Clark, Ronald K. +2 more
core +1 more source
Microstructural influence on hydrogen permeation and trapping in steels
Materials & Design (1980-2015), 2019 The microstructural influence on hydrogen permeation and trapping in pure iron and two ferritic-pearlitic steels, AISI 1018 and AISI 4340 is quantified.
M. Liu +4 more
semanticscholar +1 more source
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
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
Palladium coating on quenched-tempered martensitic steel for hydrogen electrochemical permeation tests [PDF]
, 2014 A coating process is proposed to obtain a thin palladium layer on high-strength steel. The quality of the layer is investigated by SEM observation. Potentiokinetic curves are performed to ensure no hydrogen formation during the coating process.
Aoufi, Asdin +3 more
core +1 more source
Mechanism and Evaluation of Hydrogen Permeation Barriers: A Critical Review
Industrial & Engineering Chemistry Research, 2023 Yufan Li +10 more
semanticscholar +1 more source
Effect of sweep gas on hydrogen permeation of supported Pd membranes: Experimental and modeling
International journal of hydrogen energy, 2019 Membrane reactor processes are being increasingly proposed as an attractive solution for pure hydrogen production due to the possibility to integrate production and separation inside a single reactor vessel.
M. Nordio +8 more
semanticscholar +1 more source