Enhancing the electrostatic potential difference of high entropy perovskite fluorides by ligand modification for promoted dynamic reconstruction

Abstract

A novel strategy employing ligand engineering for surface modification has been developed to promote rapid surface reconstruction and enhance the kinetics of the oxygen evolution reaction (OER) in high entropy perovskite fluoride.

Future prospects of high-entropy alloys as next-generation industrial electrode materials

“…186–200 HECs can exhibit a variety of crystal structures, depending on the composition of the material and the processing conditions (Table 4). 201–213 These varied crystal structures depend on metal ions and the counter anion 3d spatial arrangement of HECs (Fig. 11b).…”

“…Noble metals such as Ir and Ru and their oxides, as well as transition-metal-based metal oxides/hydroxides, demonstrate remarkable OER activity. 206,212 Designing active electrode materials for the OER involves incorporating active materials that can effectively regulate the electronic environment of HEA-based materials to achieve enhanced electrochemical performance (Table 9). The structural reconstruction and evolution of active intermediates in IrFeCoNiCu HEA NPs on a carbon-paper substrate led to better OER performance when compared to that of the mono-metallic Ir counterpart owing to the presence of the synergistic effect and modified d-band structure.…”

High‐Entropy Lanthanide–Organic Framework as an Efficient Heterogeneous Catalyst for Cycloaddition of CO2 with Epoxides and Knoevenagel Condensation

“…Different from conventional monometallic compounds, HEMs feature multielement active centers and unsaturated coordination as well as entropy stabilization, which are beneficial to adsorption, mass transfer, and desorption of intermediates. The HEM family includes many classes of materials, such as high-entropy alloys (HEAs), [58,59] high-entropy oxides (HEOs), [60,61] high-entropy ceramics, [62] high-entropy perovskite oxides/ fluorides, [63,64] highentropy carbides, [65] and high-entropy MOFs (HE-MOFs). [66][67][68] Among them, HE-MOFs exhibited unique structural diversity, tunable multifunctional properties, which make them suitable candidate for electrochemical energy conversion.…”