Results 31 to 40 of about 728 (154)

Navigating Classical and Nonclassical Realms of Nucleation and Crystallization

open access: yesSmall, EarlyView.
Classical nucleation and growth theories have long been foundational, yet recent nonclassical concepts have challenged and refined our understanding of solid‐state genesis. This paradigm shift introduced new, often ambiguous vocabulary. Here, we clarify key concepts, correct common misconceptions, and provide a terminological field guide across systems,
Stephan E. Wolf, Peter G. Vekilov
wiley   +1 more source

Manganese mineralization constrained by redox conditions in the Cryogenian Nanhua Basin, South China and its implications for nitrogen and carbon cycling

open access: yesFrontiers in Marine Science
The Nanhua Basin of South China recorded complete Cryogenian stratigraphic sequence from the Sturtian Glaciation (~717–660 Ma) to the Marinoan Glaciation (~654–635 Ma). The interglacial Datangpo Fm in the Nanhua Basin is divided into two members, and the
Ping Wang   +11 more
doaj   +1 more source

Ultrasonication‐Induced Iridium Single‐Atom Decoration on Anodized NiO Nanosponge Electrocatalyst for Enhanced Oxygen Evolution Reaction

open access: yesSmall, EarlyView.
A facile one‐pot sonochemical strategy generates Ir single‐atom catalysts on nanostructured NiO for enhanced oxygen evolution reaction performance. Surface defects enable strong anchoring of Ir single atoms on NiO. The NiO‐0.5 Ir catalyst exhibits significantly improved activity, supported by structural, spectroscopic, and electrochemical analyses ...
Nastaran Farahbakhsh   +6 more
wiley   +1 more source

High‐Performance MnOOH/α‐MnO2 Composite Cathode With Enhanced Capacity and Cycling Stability for Aqueous Zinc‐Ion Batteries

open access: yesInterdisciplinary Materials
Manganese‐based cathode materials hold great promise for aqueous zinc‐ion batteries (AZIBs) due to their high operating voltage and low cost. Among these, manganese dioxide (MnO2) cathodes exhibit particularly promising electrochemical characteristics ...
Xin Chen   +13 more
doaj   +1 more source

From Atomic‐Scale Engineering to Industry‐Ready Systems: Prospects for Seawater Electrolysis Toward Hydrogen

open access: yesSmall, EarlyView.
Seawater electrolysis is emerging as a viable route for large‐scale green hydrogen production, yet faces challenges from complex chemistries and harsh operating conditions. This review critically examines advances in electrocatalysts, device structures, and mechanistic understanding, highlighting scalable design strategies, durability in real seawater,
Jiaxi Ding   +8 more
wiley   +1 more source

Porous two dimensional architectures for high efficiency electrocatalytic urea oxidation

open access: yesSmart Molecules, EarlyView.
This review elucidates how porous two‐dimensional architectures regulate urea oxidation pathways through coupled structural and electronic effects, offering structure‐guided insights into catalytic efficiency, stability, and low‐carbon energy conversion.
Kean Zhu   +5 more
wiley   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

Assessment of Metal Contamination and Human Health Risk in the Buffalo River Estuary, Eastern Cape, South Africa

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Metal contamination in estuarine environments poses environmental and public health concerns, particularly where surface waters support domestic and subsistence uses. This study assessed the seasonal distribution, controlling mechanisms, and non‐carcinogenic health risks of selected metals (Mg, Al, Ba, Fe, Mn, and Zn) in the Buffalo River ...
Motebang D. V. Nakin   +2 more
wiley   +1 more source

Activating and Stabilizing Lattice Oxygen in Spinel NiCo2O4 through F, Mn Dual Doping for Rechargeable Zinc–Air Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
This study exploited the substitution doping of Mn and F in NiCo2O4 to activate and stabilize lattice oxygen, achieving a stable synergistic effect between AEM and LOM to enhance the intrinsic activity of the catalyst. The outstanding bifunctional properties enable its application as an anode catalyst in zinc–air batteries.
Jitong Li   +8 more
wiley   +1 more source

Role of manganese oxides and oxyhydroxides in phosphate sequestration in natural aquatic environments

open access: yesChemical Geology
Excessive inputs of phosphorus (P) to aquatic environments can lead to eutrophication. Adsorption of phosphate on Fe oxides is one of the main process that can limit P availability. Oxidized forms of Mn have also been suggested to play a role in P trapping.
Anschutz, Pierre   +2 more
openaire   +2 more sources

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