A High‐Rate Li–CO2 Battery Enabled by 2D Medium‐Entropy Catalyst
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202300814
Abstract: Lithium‐air batteries based on CO2 reactant (Li–CO2) have recently been of interest because it has been found that reversible Li/CO2 electrochemistry is feasible. In this study, a new medium‐entropy cathode catalyst, (NbTa)0.5BiS3, that enables the… read more here.
Keywords: catalyst; medium entropy; electrochemistry; entropy ... See more keywords
Ultrastrong Medium-Entropy Single-Phase Alloys Designed via Severe Lattice Distortion.
Sign Up to like & getrecommendations! Published in 2019 at "Advanced materials"
DOI: 10.1002/adma.201807142
Abstract: Severe lattice distortion is a core effect in the design of multiprincipal element alloys with the aim to enhance yield strength, a key indicator in structural engineering. Yet, the yield strength values of medium- and… read more here.
Keywords: severe lattice; medium entropy; lattice distortion; lattice ... See more keywords
Short‐Range Diffusion Enables General Synthesis of Medium‐Entropy Alloy Aerogels
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202202943
Abstract: Medium‐entropy alloy aerogels (MEAAs) with the advantages of both multimetallic alloys and aerogels are promising new materials in catalytic applications. However, limited by the immiscible behavior of different metals, achieving single‐phase MEAAs is still a… read more here.
Keywords: entropy alloy; medium entropy; short range; range diffusion ... See more keywords
Direct Observation of Oxygen Atoms Taking Tetrahedral Interstitial Sites in Medium‐Entropy Body‐Centered‐Cubic Solutions
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials"
DOI: 10.1002/adma.202209941
Abstract: Interstitial solutes, such as carbon in steels, are effective solid‐solution hardening agents. These alloying elements are believed to occupy the octahedral interstices in body‐centered‐cubic (bcc) metals. Using deep‐sub‐angstrom‐resolution electron ptychography, here the first experimental evidence… read more here.
Keywords: medium entropy; body centered; interstitial sites; centered cubic ... See more keywords
Surface-Tailored Medium Entropy Alloys as Radically Low Overpotential Oxygen Evolution Electrocatalysts.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202105611
Abstract: Numerous studies have explored new materials for electrocatalysts, but it is difficult to discover materials that surpass the catalytic activity of current commercially available noble metal electrocatalysts. In contrast to conventional transition metal alloys, high-entropy… read more here.
Keywords: entropy alloys; oxygen evolution; low overpotential; medium entropy ... See more keywords
Medium-Entropy-Alloy FeCoNi Enables Lithium-Sulfur Batteries with Superb Low-Temperature Performance.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202205525
Abstract: Lithium-sulfur battery suffers from sluggish kinetics at low temperatures, resulting in serious polarization and reduced capacity. Here, this work introduces medium-entropy-alloy FeCoNi as catalysts and carbon nanofibers (CNFs) as hosts. FeCoNi nanoparticles are in suit… read more here.
Keywords: cnfs; entropy alloy; alloy feconi; capacity ... See more keywords
Design of Novel Non-equiatomic Cu-Ni-Al-Ti Composite Medium-Entropy Alloys
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Engineering and Performance"
DOI: 10.1007/s11665-020-04830-w
Abstract: There has been great attention on high-entropy alloys (HEAs) over the past decade. Unlike conventional alloy systems, HEAs commonly include at least five principal elements with equiatomic or near-equiatomic ratio. HEAs with their superior mechanical,… read more here.
Keywords: entropy alloys; novel non; design novel; medium entropy ... See more keywords
Thermal Stability and Mechanical Properties of Low-Activation Single-Phase Ti-V-Ta Medium Entropy Alloys
Sign Up to like & getrecommendations! Published in 2019 at "JOM"
DOI: 10.1007/s11837-019-03713-3
Abstract: A series of titanium-vanadium-tantalum (Ti-V-Ta) medium entropy alloys have been fabricated with all of them exhibiting a single-phase body-centered cubic structure in the homogenized states, and their thermal stability as well as their mechanical properties… read more here.
Keywords: thermal stability; mechanical properties; stability; entropy alloys ... See more keywords
Unraveling dual phase transformations in a CrCoNi medium-entropy alloy
Sign Up to like & getrecommendations! Published in 2021 at "Acta Materialia"
DOI: 10.1016/j.actamat.2021.117112
Abstract: Abstract The emergence of multi-principal element alloys (MPEAs) holds great promise for the development of high performance metallic materials. However, it remains unclear whether MPEAs can provide previously unknown deformation mechanisms to drastically enhance their… read more here.
Keywords: phase; phase transformations; entropy alloy; medium entropy ... See more keywords
Corrosion behavior of CoCrNi medium-entropy alloy compared with 304 stainless steel in H2SO4 and NaOH solutions
Sign Up to like & getrecommendations! Published in 2020 at "Corrosion Science"
DOI: 10.1016/j.corsci.2020.108973
Abstract: Abstract The corrosion resistance and passive film properties of the CoCrNi medium-entropy alloy were investigated. Experimental results show that selective dissolution of elements in the CoCrNi is evident compared with the 304 SS. The passive… read more here.
Keywords: compared 304; entropy alloy; cocrni; corrosion ... See more keywords
Effect of Al concentration on the microstructural and mechanical properties of lightweight Ti60Alx(VCrNb)40-x medium-entropy alloys
Sign Up to like & getrecommendations! Published in 2021 at "Intermetallics"
DOI: 10.1016/j.intermet.2021.107213
Abstract: Abstract Using the CALPHAD method, lightweight nonequiatomic Ti60(Al)x(VCrNb)40-x (x = 6, 8, 10, 12, and 18 at.%) medium-entropy alloys (MEAs) were designed and produced using vacuum arc melting and drop casting. The density of these cast alloys decreased… read more here.
Keywords: mechanical properties; vcrnb medium; entropy alloys; concentration ... See more keywords