Diagnosing the Role of Mn Additives in Aqueous Zn/MnO2 Batteries
Advanced Energy Materials, EarlyView.Aqueous zinc‐ion batteries frequently employ manganese dioxide cathodes and prevent capacity fade with manganese electrolyte additives. Using operando X‐ray fluorescence spectroscopy to directly track Mn concentration during cycling, we show that the beneficial role of the Mn additive appears to be as an additional source of redox‐active material ...
Zixuan Li +11 more
wiley +1 more source
Advanced Energy Materials, EarlyView.Schematic comparison of optimized F–NiFe–LDH and conventional NiFe–LDH electrodes during alkaline natural seawater oxygen evolution. The synergistic (poly)CM protective layer and fluoride‐mediated passivation suppress metal leaching, mitigate chloride‐induced corrosion, and regulate surface reconstruction, preserving catalyst integrity beyond 1000 h ...
Xiang Li +7 more
wiley +1 more source
Controlled Hydrogen Delivery by Single‐Atom Ru Accelerates Electrocatalytic Ammonia Synthesis
Angewandte Chemie, EarlyView.Single Ru atoms anchored on Co3O4 guide reactants along a hydrogen‐rich surface pathway, enabling efficient and selective conversion of NO to NH3. By linking atomic design to catalytic performance, this strategy clarifies the reaction mechanism and offers a versatile platform for engineering oxide catalysts for electrochemical ammonia synthesis ...
Zheng Liu +15 more
wiley +2 more sources
Ionic liquid assisted extraction induced by emulsion breaking for extraction of trace metals in diesel, gasoline and kerosene prior to ICP-OES analysis. [PDF]
HeliyonMdluli NS, Nomngongo PN, Mketo N.
europepmc +1 more source
Angewandte Chemie, EarlyView.Increasing the density of isolated manganese (Mn) atoms in carbon nitride (CNx) photocatalysts does not continuously improve performance. Instead, beyond a critical loading, the polymer support reorganizes, altering charge‐carrier dynamics and oxygen activation while preserving atomic dispersion.
Viktoria Velichko +14 more
wiley +1 more source
Development and validation of a microwave-assisted digestion technique as a rapid sample preparation method for the estimation of selenium in pharmaceutical dosage forms by ICP-OES. [PDF]
Arch Razi InstPal AK, Raja S.
europepmc +1 more source
Angewandte Chemie, EarlyView.An organic‐solvent‐free approach for efficient recovery of Nd from waste hard‐disk drive NdFeB magnets is achieved via selective precipitation with ethylenediaminetetraacetic acid (EDTA) substituted by hydrophobic cs‐124, under neutral conditions. Three precipitation cycles lead to 99.7% Nd puritywith 77% recovery yield; the chelator is simply recycled
Jiajun Qiu +3 more
wiley +2 more sources
Selective and precise solid phase extraction based on a magnetic cellulose gold nanocomposite followed by ICP-OES analysis for monitoring of total sulfur content in liquid fuels. [PDF]
RSC AdvMabena KG, Nomngongo PN, Mketo N.
europepmc +1 more source
Angewandte Chemie, EarlyView.A family of multivariate metal–organic frameworks, UoB‐116(Ln), can be prepared using up to 16 different metals, revealing the ability to tune properties through compositional control. ABSTRACT The synthesis of a multivariate metal–organic framework (MTV‐MOF) family, [Ln(DNNDI)1.5]n (UoB‐116), is reported (DNNDI: N,N'‐bis(dinicotinate)‐1,4,5,8 ...
Adnan Ishaq +9 more
wiley +1 more source
Anion Engineering of Surface Frustrated Lewis Pairs for Light‐Assisted CO2 Hydrogenation to Methanol
Angewandte Chemie, EarlyView.Anion engineering through nitrogen incorporation regulates the local coordination environment and promotes the formation of defect‐associated Ga–O/N frustrated Lewis pairs in non‐stoichiometric zinc gallium oxide. The engineered surface sites facilitate heterolytic H2 splitting, while the modified electronic structure enhances light utilization ...
Rui Song +27 more
wiley +1 more source