Recently, a new family of metal oxide, high-entropy oxides (HEOs), is attracting growing interest, which offers broad possibilities for adjusting the material functionalities, including electrocatalysis, ionic storage and superconductor [23,24,25]. Owing to the perovskite crystal structure, the cocktai...
However, there are numerous types of high-entropy electrode materials and various preparation methods. Different synthesis methods have distinct effects on material properties. Not all methods can synthesize a variety of elements into a single solid solution phase, and complex preparation methods often l...
In addition, except for active metal doping, the introduction of redox-inert element can also facilitate the OER process by providing active metal with different electron donating ability or stabilizing the structure of the catalyst. In recent years, high entropy materials including 5 or more than ...
Inducing the cocktail effect in yolk-shell high-entropy perovskite oxides using an electronic structural design for improved electrochemical applications 2023, Chemical Engineering Journal Citation Excerpt : And the stability of LaBiMnFeCu-HEP-0.3 is better than commercial Pt/C. More importantly, LaBiMnF...
This illustrates the impact of high-entropy systems on the central electronic structure (Supplementary Fig. S37). This illustrates the impact of high-entropy oxides on the central electronic structure. In addition, HMFOR and oxygen evolution reaction (OER) are two competing reactions due to ...
1. The atomic structure is similar to low-dimensional perovskite-inspired materials such as Cs4PbBr6 where metal halide anion clusters are surrounded and isolated by cation counter parts (effective 0D connectivity)16,17. However, due to distinct size and orbital configuration of Cu(I) 3d104s0,...
High-entropy alloy (HEA)-based materials are expected to be promising oxygen electrocatalysts due to their exceptional properties. The electronic structure regulation of HEAs plays a pivotal role in enhancing their elctrocatalytic ability. Herein, PtFeCoNiMn nanoparticles (NPs) with subtle lattice disto...
The optimized La(CrMnFeCo2Ni)O3 HEPO exhibits an outstanding OER overpotential of 325 mV at a current density of 10 mA cm2 and excellent electrochemical stability after 50 h of testing. Lanthanum‐based high entropy perovskite oxides (HEPOs) with a B﹕ite consisting of five consecutive first‐...
Lou et al. [152] prepared single-phase perovskite type Sr0.9La0.1(Zr0.25Sn0.25Ti0.25Hf0.25)O3 high-entropy ceramics by adding equal amounts of four transition metal elements Zr, Sn, Ti and Hf at the B position. The low κ and high S were achieved at the same time. Liu et al. [...
by combining the XPS and XAFS analysis, we have verified the successfully incorporation of Au single atoms and oxygen vacancies in high-entropy MnFeCoNiCu LDH, and the enhanced valence of the transition metals in high-entropy LDH caused by the strong electronic coupling may alter the OER mechanis...