Rare Metals
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Dual-wavelength dual-indicator catalytic kinetic spectrophotometry for determination of trace Ru(III)
Rare Metals - Tập 32 - Trang 605-608 - 2013
A new dual-wavelength dual-indicator catalytic kinetic spectrophotometric method for the determination of trace Ru(III) was studied. This method was based on Ru(III)-catalyzing oxidation of Arsenazo I and indigo carmine by potassium bromate in sulfuric acid. The absorbances of the catalytic and noncatalytic systems were measured at 510 and 610 nm, respectively. Under the optimum conditions, the li......
Enhanced thermoelectric performance of AgBi3S5 by antimony doping
Rare Metals - Tập 39 Số 3 - Trang 289-295 - 2020
Selective introduction of surface defects in anatase TiO2 nanosheets for highly efficient photocatalytic hydrogen generation
Rare Metals - Tập 41 - Trang 2074-2083 - 2022
Defect engineering greatly enhances the catalytic activity of transition metal semiconductor photocatalysts. Recently, localized surface defects engineering has been intensively researched, but it still remains challenges on how to tilt the balance to the controllable construction of surface defects rather than bulk ones. Here, we report a facile room-temperature solution processing strategy on (0......
Electrolyte perspective on stabilizing LiNi0.8Co0.1Mn0.1O2 cathode for lithium-ion batteries
Rare Metals - - 2023
SPS densification behavior of W-5.6Ni-1.4Fe heavy alloy powders
Rare Metals - Tập 30 - Trang 581-587 - 2011
Spark plasma sintering (SPS) method was used to sinter two different types of 93W-5.6Ni-1.4Fe (wt pct) heavy alloy powders which were respectively prepared by simple mixing and high-energy ball milling (HEBM) for 40 h. In SPS processing, the powder compacts were heated at 100 °C/min to the desired sintering temperature with 5 min holding. The SPS densification behavior of the two types of powders ......
Optimization of sintering parameters for fabrication of Ag-sheathed FeSe superconducting wires
Rare Metals - Tập 37 - Trang 433-438 - 2018
Ag-sheathed Fe1.05Se superconducting wires were fabricated with ex-situ powder in tube (PIT) process. Fe and Se powders with molar ratio of 1.05 were firstly mixed and sintered under 600 °C for 12 h to form precursor powders. Owing to the complex Fe–Se binary phase diagram, both superconducting tetragonal FeSe and non-superconducting hexagonal FeSe could be formed simultaneously during sintering. ......
Structures and hydrogen storage properties of RE–Mg–Ni–Mn-based AB2-type alloys prepared by casting and melt spinning
Rare Metals - Tập 38 - Trang 1086-1096 - 2016
To ameliorate the electrochemical hydrogen storage properties of RE–Mg–Ni–Mn-based AB2-type electrode alloys, La element was partially substituted by Ce, and La1−xCexMgNi3.5Mn0.5 (x = 0, 0.1, 0.2, 0.3, 0.4) alloys were fabricated by casting and melt spinning. The effects of Ce content on structures and electrochemical hydrogen storage properties of prepared alloys were studied in detail. Results s......
CdS/TiO2 nanotubes hybrid as visible light driven photocatalyst for water splitting
Rare Metals - - 2011
Effects of minor Sc on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr based alloys
Rare Metals - Tập 28 - Trang 102-106 - 2009
Five kinds of Al-Zn-Mg-Cu-Zr based alloys with different Sc additions were prepared by ingot metallurgy. The effects of minor Sc on the microstructure and mechanical properties of Al-Zn-Mg-Cu-Zr based alloys were investigated using tensile tests, optical microscopy (OM), and transmission electron microscopy (TEM). The results show that the ultimate tensile strength and yield strength are improved ......
Phase composition, morphology and element contents of micro-arc oxidation ceramic coatings on Ti–6Al–4V alloy under different calcination conditions
Rare Metals - Tập 35 - Trang 836-840 - 2016
Compound ceramic coatings with the main crystalline of Al2TiO5 (in the as-prepared coating without treatment) were prepared in situ on the surface Ti–6Al–4V alloy by means of pulsed bipolar micro-arc oxidation in NaAlO2 solution. For the purpose of studying the anti-oxidation properties of the samples, the coated samples treated in argon and the as-coated samples were calcined in air at 1000 °C. A......
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