Results 101 to 110 of about 5,521 (227)

Analysis of Corrosion and Wall Perforation in the Heat Exchanger Made of AISI 316L Stainless Steel

Materials and Corrosion, EarlyView.
Elevated passivation temperature is identified as the dominant factor triggering localized corrosion and subsequent perforation of AISI 316L heat exchanger tubes. Electrochemical and complementary characterization results show that the alloy retains high resistance to general, pitting, and intergranular corrosion, indicating that failure primarily ...
Bojana Radojković, Bore Jegdić, Branimir Grgur, Stefan Dikić, Jovanka Pejić, Anđela Simović, Nataša Gajić, Aleksandra Popović   +7 more
wiley   +1 more source

Novel mixed heterovalent (Mo/Co)Ox-zerovalent Cu system as bi-functional electrocatalyst for overall water splitting

Scientific Reports
A novel hybrid ternary metallic electrocatalyst of amorphous Mo/Co oxides and crystallized Cu metal was deposited over Ni foam using a one-pot, simple, and scalable solvothermal technique.
Ahmed R. Tartour, Moustafa M. S. Sanad, Ibrahim S. El-Hallag, Youssef I. Moharram   +3 more
doaj   +1 more source

Covalently Immobilized Lignin–Xanthene Conjugates for Persistent Surface Photochemistry and Self‐Sterilizing Interfaces Under Ambient Visible Light

Macromolecular Rapid Communications, EarlyView.
Bio‐derived lignin–Eosin Y macromolecular networks are developed as visible‐light‐responsive self‐sterilizing coatings that generate reactive oxygen species without leaching. The spray‐coated photopolymerized surfaces exhibit durable antibacterial and antiviral activity under ambient light for extended periods, demonstrating a scalable and sustainable ...
Euna Oh, Surjith Kumaran, Sumin Han, Kiseok Lee, Hyerin Shin, Seokmin Oh, Dae‐Hong Ko, Hyo‐Jick Choi   +7 more
wiley   +1 more source

Ultrasound‐Assisted Epoxy Resin Curing Monitored by Impedance Spectroscopy

Polymer Engineering &Science, EarlyView.
Ultrasound enhances epoxy cure rates via localized heating without altering cure kinetics. Impedance spectroscopy provides a direct, non‐destructive measure of cure progression, enabling accurate mapping of degree of cure in real time. ABSTRACT Epoxy resins are widely used in aerospace and automotive manufacturing as structural adhesives and matrices ...
Daniel Csehngeri, Anoush Poursartip, Edmond Cretu   +2 more
wiley   +1 more source

Exploring the Impedance Spectroscopy in Hole‐Conductor‐Free Mesoscopic Perovskite Solar Cells

Progress in Photovoltaics: Research and Applications, EarlyView.
This study employs impedance spectroscopy (IS) to investigate the carrier dynamics of printable perovskite solar cells (p‐MPSCs). The exceptional stability of p‐MPSCs enables reliable IS measurements under various conditions. We develop an equivalent circuit model to analyze the IS data, linking each circuit element to specific dynamic processes.
Cheng Qiu, Jiale Liu, Shuai Yang, Deli Yan, Lukas Wagner, Yue Hu   +5 more
wiley   +1 more source

Impacts of Fluorination at the Ortho‐Position of Carboxy Groups on Tetrakis(biphenyl)ethene‐Based Hydrogen‐Bonded Framework

Small, EarlyView.
This work provides new findings on the effect of fluorination on the substitution of TPE derivatives and the modulation of the structure and fluorescence properties of hydrogen‐bonded organic framework (HOF) of F‐CBPE. ABSTRACT Fluorination of building block molecules is one of the effective engineering approaches to modulate molecular assembly in ...
Takuto Fujii, Mario de la Hoz Tomás, Ryusei Oketani, Boiko Cohen, Ken‐ichi Otake, Kazuki Shiga, Norimitsu Tohnai, Abderrazzak Douhal, Ichiro Hisaki   +8 more
wiley   +1 more source

Polymer Electrolyte–Cathode Surface Bonding Suppresses Oxygen Evolution and Cation Mixing in Ni‐Rich Layered Oxides for Lithium Batteries

Small, EarlyView.
Structural stability of NMC is enhanced by introducing strong Ni–Opolymer bonds, such as those in carbonate‐based (PTMC) electrolytes. Strong hybridization between surface Ni and polymer oxygen facilitates oxidation of undercoordinated Ni2+, thereby mitigating Li/Ni mixing and O2 evolution at deep delithiation states.
Liang‐Ting Wu, Daniel Brandell, Bing Joe Hwang, Jyh‐Chiang Jiang   +3 more
wiley   +1 more source

High‐Efficiency Lithium Sulfur Cells With Suppressed Polysulfide Solubility Using a Cost‐Effective Ammonium‐Based Ionic Liquid Electrolyte

Small, EarlyView.
The cost‐effective ammonium‐based ionic liquid electrolyte, N₁₁₁3FSI, suppresses polysulfide dissolution to sub‐millimolar levels in lithium–sulfur batteries. The electrolyte promotes efficient FSI− anion reduction, forming a dense, LiF‐rich solid‐electrolyte interphase on both the lithium metal anode and sulfur cathode. This dual‐electrode passivation
Ajit Kumar, Frederick Nti, Pratima Kumari, Mahin Maleki, Steve Rowlands, Paul M. Bayley, Robert Kerr, Anthony Somers, Maria Forsyth, Patrick C. Howlett   +9 more
wiley   +1 more source

DNA Coordination Engineering of Dual‐Metal Prussian Blue Analogs for Accelerated Zn2+ Storage

Small, EarlyView.
A sustainable DNA‐assisted strategy was developed to regulate the growth of CuMn‐HCF, producing a porous hierarchical structure with abundant active sites. The optimized CuMn‐HCF‐D7 electrode exhibited enhanced Zn2+ storage kinetics, high reversible capacity, and exceptional cycling stability over 30 000 cycles, demonstrating its potential as a durable
Anjana Puthanpurayil Jayarajan, Nagalakshmi Motupalli, Surya Kiran Ampasala, Naveen Chilamkurthi, Samanth Kokkiligadda, Soong Ho Um   +5 more
wiley   +1 more source

Rational Design of LiNi1‐xFexO2 Electrodes for Enhanced Oxygen Evolution Reaction Under Power‐Fluctuating Operations in Alkaline Water Electrolysis

Small Methods, EarlyView.
We develop Fe‐incorporated LiNiO2 for the OER in alkaline media, where Fe enhances Ni3+ oxidation state and optimizes eg orbital filling, significantly improving activity under power fluctuations. ABSTRACT The electrochemical performance of alkaline water electrolyzers is hindered by power fluctuations when integrated with renewable energy sources in ...
Younghan Jung, Asiya M. Tamboli, Sowon Kim, Wan Sik Kim, Sathya Sheela Subramanian, Sejin Im, Junseok Sim, Junseok Oh, Geun Ho Gu, Chang‐Hee Kim   +9 more
wiley   +1 more source