It is shown that the reduction of the entropy by removal of a single element leads to a completely different electrochemical behavior and cycling degradation. Additionally, unique possibilities to fine-tune the electrochemical performance of high-entropy materials is demonstrated, by making use of the...
Using the high-entropy alloys (HEAs) CoCuGaNiZn and AgAuCuPdPt as starting points we provide a framework for tuning the composition of disordered multi-metallic alloys to control the selectivity and activity of the reduction of carbon dioxide (CO2) to highly reduced compounds. By combining densit...
The oxygen reduction mechanism was found to change with the applied potential. At low overpotential, the oxygen reduction required two electrons to produce H2O2; whereas at high overpotential, the produced H2O2 was further reduced into H2O [30]. Belkessam et al. found that Cl-NiCoO showed ...
Note the reduction in the intensity of the peak with the increase in the number of alloying elements. 4.2 Sluggish Diffusion Diffusion and phase transformation kinetics in HEAs are slower than those in their conventional counterparts [202]. In HEA the neighboring atoms of each lattice site are ...
confirm DEED as a reliable tool enabling computational discovery of novel high-entropy ceramics. We have also developed cPOCC, a convolutional algorithm to partition the immense number of configurations in complex solid solutions — such as carbonitrides — at a drastic reduction of computational requi...
High-entropy perovskite oxides: A versatile class of materials for nitrogen reduction reactions Despite the intense research efforts directed to electrocatalytic nitrogen reduction reaction (eNRR), the NH3 yield and selectivity are still no... K Chu,J Qin,H Zhu,... - 《Science China Materials...
Multi-site electrocatalysts boost pH-universal nitrogen reduction by high-entropy alloys. Adv Funct Mater , 2021 , 31: 2006939 CrossRef Google Scholar [28] Jiang H, Liu X, Zhu M N, et al. Nanoalloy libraries from laser-induced thermionic emission reduction. Sci Adv , 2022 , 8: ea...
Microstructure, hardness, resistivity and thermal stability of sputtered oxide films of Al-CoCrCu0.5NiFe high-entropy alloy. Mater Sci Eng-A, 2007, 457: 77–83 Article CAS Google Scholar Tung C, Yeh J, Shun T, et al. On the elemental effect of Al-CoCrCuFeNi high-entropy alloy system....
The rationale is that incorporating high-entropy heteroatoms could effectively minimize the local symmetry to destabilize the π-electron network of graphitic carbons and avoid too strong or too weak binding energies for intermediate species of the oxygen reduction reaction and the oxygen evolution ...
Designing electrocatalysts with high-performance for both reduction and oxidation reactions faces severe challenges. Here, the uniform and ultrasmall (~3.4 nm) high-entropy alloys (HEAs) Pt18Ni26Fe15Co14Cu27 nanoparticles are synthesized by a simple l