Results 101 to 110 of about 6,295 (249)

X-ray fluorescence (XRF) on painted heritage objects: a review using topic modeling

open access: yesHeritage Science
This review presents the computational method of topic modeling to identify core topics and time trends in research on X-ray fluorescence (XRF) and its application to cultural heritage.
Astrid Harth
doaj   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel   +4 more
wiley   +1 more source

Spectral Mapping Techniques for the Stratigraphic and Compositional Characterisation of a 16th-Century Painting

open access: yesHeritage
Identifying a painting’s pigment palette is crucial for comprehending the author’s technique, as well as for evaluating the degradation of the materials.
Alice Dal Fovo   +5 more
doaj   +1 more source

The Effect of Electrolyte pH and Impurities on the Stability of Electrolytic Bicarbonate Conversion

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The performance of bicarbonate electrolysis is largely controlled by the electrolyte inlet pH, the distance between the membrane and electrode, and the impurities present in the electrolyte. By complexing trace metal ions with ethylenediaminetetraacetic acid (EDTA), stability can significantly be improved and longer term operation can be achieved ...
Iris Burgers   +3 more
wiley   +1 more source

Engineering the Lattice and Electronic Configurations of N‐Rich‐CoMoCN by Mo Doping and N Enrichment for Enhanced Water Splitting

open access: yesEcoEnergy, EarlyView.
This study design Mo‐doped and N‐rich‐CoMoCN bimetal for bi‐functionally efficient overall water splitting catalysts by constructing an active site and engineering the interfacial Co6Mo6C2/Co heterojunction in a N‐doped porous carbon matrix and study on the performance of catalyst for electrocatalytic.
Huimin Yang   +12 more
wiley   +1 more source

Redistributing Cobalt and Tungsten From WC–Co Soft Scrap Toward Sustainable Cathode and Coating Materials for Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A sustainable upcycling strategy transforms tungsten carbide–cobalt (WC–Co) soft scrap into high‐performance cathode materials. Recycled Co with trace nickel (Ni) is resynthesized into stabilized LiCoO2 with superior high‐voltage durability, while the recovered tungsten is further utilized as tungsten trioxide to enhance Ni‐rich cathode interfaces ...
Seulgi Kim   +10 more
wiley   +1 more source

Nanofiber PVA‐Based Membranes Incorporating Functionalized Spanish Broom Derivatives for Sustainable Water Purification

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates Spanish broom (Spartium junceum) as a renewable source for electrospun composite membranes in sustainable water purification. MCC and biochar were functionalized with eco‐friendly precursors and nanomaterials (i.e., HNT, β‐CDs) to develop hybrid PVA nanofiber composites.
Giulia Rando   +7 more
wiley   +1 more source

Non-destructive examination of a polychrome wooden sculpture from the 17th century

open access: yesBrazilian Journal of Radiation Sciences
This study investigates the conservation assessment of a polychrome sculpture from the 17th century depicting San Diego de Alcalá, whose origin and workshop remain unknown.
Roberta Manon de Paula Sales Borges   +7 more
doaj   +1 more source

Molten Salt Electrolyte for Enhanced Low‐Temperature Sodium Liquid Metal Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study introduces the application of a low‐temperature, high‐conductivity, solvent‐free Na/KFSI molten salt electrolyte in sodium liquid metal batteries. Additionally, this electrolyte facilitates the formation of a stable and NaF‐rich cathode electrolyte interphase (CEI) on the alloy cathode, enabling stable cycling at an unprecedentedly low ...
Jingya Dong   +10 more
wiley   +1 more source

Carbon‐Negative Upcycling of Sewage Sludge into Superiorly Stable Gel Via Liquid‐Phase Utilization Strategy for Water‐Remediation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work developed a low‐temperature sludge hydrothermal coupled with gel crosslinking strategy which could upgrade the waste liquid generated from sewage sludge hydrothermal treatment into the hydrothermal‐liquid‐gel. The inventive hydrothermal‐liquid‐gel exhibited the enhanced pollutant removal capability, high synthetic stability, and superior ...
Zifan Liu   +12 more
wiley   +1 more source

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