However, a relevant strategy to improve high-entropy materials is still lacking. Herein, substitutional doping on the La-site in high-entropy perovskite La1xSrx(CrMnFeCoNi)0.2O3 is reported as an efficient OER catalyst. Sr doping is found to be crucial to enhancing the OER activity. The ...
High-entropy perovskite fluorides: A new platform for oxygen evolution catalysis J. Am. Chem. Soc., 142 (2020), pp. 4550-4554, 10.1021/jacs.9b12377 View in ScopusGoogle Scholar 6 T.X. Nguyen, Y. Liao, C. Lin, Y. Su, J. Ting Advanced high entropy perovskite oxide electrocatalyst for...
High entropy materials (HEMs) have developed rapidly in the field of electrocatalytic water-electrolysis for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) due to their unique properties. In particular, HEM catalysts are composed of many elements. Therefore, they have rich ...
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...
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 ...
In such 3d-metal-based catalysts, the oxidation cycle of 3d metals has been posited to act as the OER thermodynamic-limiting process; however, further tuning of its energetics is challenging due to similarities among the electronic structures of neighbouring 3d metal modulators. Here we report a...
Herein, a panoramic view of the mechanism of the OER of HEO and the evaluation criteria for the performance of the OER of HEO are discussed. A sequence of key discoveries and achievements of HEO-based OER electrocatalysts with different structures such as perovskite, spinel, and rock-salt ...
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‐...
In order to further explore the potential application of the A-site high-entropy oxides as RSOC oxygen electrodes, a novel high-entropy perovskite oxide material with chemical composition La0.2Pr0.2Nd0.2Sm0.2Sr0.2Co0.8Fe0.2O3-δ (HE-LSCF) was synthesized in this work. This material is also ...
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. [...