Soluble aluminium (Al(sl)) in high silicon alloys is determined by electrolytic dissolution flow injection analysis (ED-FIA) and inductive coupled plasma with optical emission spectrometry (ICP-OES). Skipping the time consuming sample preparation known from acid hydrolysis reduces the required time per determination from 15 to 4 min. A new calculation procedure is used to compensate the discrepancy in matters of dissolution between acid hydrolysis and electrolytic dissolution. Samples with a known silicon content (2,5 and 3,1 wt%) are used to determine the differences of dissolved material and to calculate a correction factor. In a working range of 200-350 ppm aluminium in high silicon steel, there is a standard deviation of 7 ppm for a measurement series of 19 samples (max deviation 19 ppm).
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http://dx.doi.org/10.1016/j.talanta.2018.07.014 | DOI Listing |
RSC Adv
January 2025
Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-ro, Yuseong-gu Daejeon 34141 Republic of Korea
Zircaloy-4 (Zr-4) is widely used as the cladding material in nuclear power plants (NPPs) due to its excellent corrosion resistance and low neutron absorption cross-section. Under Loss of Coolant Accident (LOCA) conditions, oxidation of Zr-4 can compromise the safety of the NPPs by accelerating hydrogen production. Therefore, enhancing the oxidation resistance of Zr-4 is a critical research focus.
View Article and Find Full Text PDFAcc Chem Res
January 2025
Department of Chemistry, Shanghai Key Laboratory of Catalysis and Innovative Materials, Center of Chemistry for Energy Materials Shanghai, Fudan University, Shanghai 200433, PR China.
ConspectusZinc metal batteries (ZMBs) appear to be promising candidates to replace lithium-ion batteries owing to their higher safety and lower cost. Moreover, natural reserves of Zn are abundant, being approximately 300 times greater than those of Li. However, there are some typical issues impeding the wide application of ZMBs.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Tongji University, School of Chemical Science and Engineering, 1239 Siping Road, 200092, Shanghai, CHINA.
Protons (H+) with the smallest size and fastest redox kinetics are regarded as competitive charge carriers in the booming Zn-organic batteries (ZOBs). Developing new H+-storage organic cathode materials with multiple ultralow-energy-barrier protophilic sites and super electron delocalization routes to propel superior ZOBs is crucial but still challenging. Here we design multiple protophilic redox-active reticular organic skeletons (ROSs) for activating better proton storage, triggered by intermolecular H-bonding and π-π stacking interactions between 2,6-diaminoanthraquinone and 2,4,6-triformylphloroglucinol nanofibrous polymer.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.
A significant challenge in commercializing electrochemical CO reduction (COR) is achieving catalyst durability. In this study, online inductively coupled mass spectrometry (ICP-MS) was used to investigate catalyst degradation via nanoparticle detachment and/or dissolution into metal ions under COR operating conditions in 0.1 M KHCO.
View Article and Find Full Text PDFMolecules
January 2025
School of Metallurgical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China.
The dissolution mechanism of YbOF in a fluoride-containing (LiF-CaF) molten salt is the basis for analyzing the structure of the resulting medium and optimizing the electrolytic preparation of rare-earth Yb alloys. In this study, isothermal saturation was used to analyze solubility changes of YbOF in the (LiF-CaF). system.
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