Results 61 to 70 of about 13,485 (259)

Facile Synthesis of Highly Conductive Vanadium-Doped NiO Film for Transparent Conductive Oxide

open access: yesApplied Sciences, 2020
Metal-oxide-based electrodes play a crucial role in various transparent conductive oxide (TCO) applications. Among the p-type materials, nickel oxide is a promising electrically conductive material due to its good stability, large bandgap, and deep ...
Ashique Kotta, Hyung Kee Seo
doaj   +1 more source

Enhanced Mechanical Properties Via Boron‐Induced Multi‐Mechanism Strengthening in (NbTaTi1.5V)100‐xBx Refractory High Entropy Alloys

open access: yesAdvanced Science, EarlyView.
A trace amount of boron is introduced into NbTaTi1.5V RHEA, forming a finegrained BCC+TiO+TiB microstructure. The TiB phase generates numerous dislocations, strengthening the alloy. The alloy exhibits 3610 MPa compressive fracture strength and 1060 HV microhardness, while retaining 14.8% fracture strain.
Da Wu   +9 more
wiley   +1 more source

Metal Ion‐Induced Fast Gelation of 2D MnO2 Nanosheets With Cationic Vacancies for Durable Aqueous Zinc‐Ion Batteries

open access: yesAdvanced Science, EarlyView.
We report Mn‐deficient aerogels by inducing the first gelation of MnO2 nanosheets in solution using divalent metal ions as crosslinking agents, thereby inhibiting nanosheet restacking and enhancing surface utilization. Benefiting from abundant Mn vacancies and 3D porous structures, the A‐MnO2 cathode exhibits improved conductivity, fast reaction ...
Yalei Wang   +6 more
wiley   +1 more source

Recent Advances in Carbon Cathode Materials toward High‐Performing Zinc‐Ion Hybrid Supercapacitors

open access: yesAdvanced Science, EarlyView.
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Take Hirooka   +3 more
wiley   +1 more source

Unveiling Activation Process of C═N Cathode for High‐Performing Zinc‐Organic Batteries

open access: yesAdvanced Science, EarlyView.
A high‐performance organic cathode of DPPT has been designed for aqueous zinc‐ion batteries (ZIBs), showing ultralong cycle life of 45 000 cycles. Besides, flexible DPPT ZIBs with stable capacity are applied in wearable NH3 sensors. Notably, the activation mechanism of the transformation of DPPT‐eight proton into DPPT is proposed and proved which ...
Xiaodong Geng   +11 more
wiley   +1 more source

Automating Chemical Reasoning in High‐Throughput Phase Identification With a Probabilistic, LLM‐Guided Framework

open access: yesAdvanced Science, EarlyView.
Autonomous laboratories can now synthesize materials faster than experts can interpret the resulting diffraction data. A probabilistic framework combines refinement‐fit metrics with large language model‐derived chemical reasoning to rank competing phase interpretations and flag those unsuitable for autonomous use.
Olympia Dartsi   +7 more
wiley   +1 more source

Obtaining high-purity ammonium metavanadate from vanadium-containing technogenic raw materials contaminated with phosphorus and sulfur: integrated technology for solution purification

open access: yesJournal of Engineering and Applied Science
This study presents the development and experimental validation of an integrated technology for producing high-purity ammonium metavanadate (NH4VO3) from vanadium-containing technogenic raw materials contaminated with phosphorus and sulfur. Roasted spent
Nazigul Zhumakynbai   +5 more
doaj   +1 more source

Effect of the NaVO3-V2O5 Ratio on the High Temperature Corrosion of Chromium

open access: yesInternational Journal of Electrochemical Science, 2015
The effect of the V2O5–NaVO3 ratio on the corrosion resistance of Cr at different temperatures has been studied. The corrosion performance was determined by mass loss and electrochemical techniques. The corrosion resistance of Cr depends on the stability
J. Porcayo-Calderon   +3 more
doaj   +1 more source

Two‐Dimensional Quaternary Alloys of (RuMoVNb)Se2 for Superior Hydrogen Evolution Reaction Catalysis

open access: yesAdvanced Science, EarlyView.
Composition‐tuned (RuMoVNb)Se2 quaternary alloy nanosheets are synthesized via colloidal reactions. Incorporation of Ru into (MoVNb)Se2 ternary alloys results in more metallic electronic structures and significantly enhances their electrocatalytic activity for the hydrogen evolution reaction (HER) under alkaline, acidic, and neutral conditions.
Junaid Ihsan   +11 more
wiley   +1 more source

Research progress in defect engineering to enhance zinc storage properties of vanadium-based oxides

open access: yesCailiao gongcheng
Aqueous zinc-ion batteries (AZIBs) have emerged as a highly competitive and promising new energy storage technology due to their high safety, high theoretical specific capacity, low cost, and simple fabrication process.
LI Wenjun   +4 more
doaj   +1 more source

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