Mesoporous K-doped NiCo₂O₄ derived from a Prussian blue analog: high-yielding synthesis and assessment as oxygen evolution reaction catalyst

Abstract

OER characteristics of K-doped NiCo2O4 catalyst and K doping control through simple hydrothermal synthesis.

Alkali metal doped ruthenium dioxide nanosheets with lattice distortion as highly active oxygen evolution electrocatalysts in acidic media

“…S4 and S5 †). 40,41 In addition, Brunauer-Emmett-Teller (BET) tests were performed to investigate the specific surface area of the as-prepared samples. As illustrated in Fig.…”

Modular preparation of functional bimetallic spinels from metal–organic frameworks: a deep exploration from macro and micro perspectives

“…Consolidation of the large amount of relevant research shows that the MOF precursors used to derive bimetallic spinels are mainly focused on ZIFs (zeolitic imidazolate frameworks), [38][39][40] MIL (Materials of Institut Lavoisier) [41][42][43] and PBA (Prussian Blue Analogue). [44][45][46] Among them, ZIF precursors are commonly used to prepare Cobased bimetallic spinels, and most of the bimetallic spinels formed by Cof ions occupying octahedral sites have relatively excellent catalytic activities. Similarly, MIL is mainly used for the preparation of Fe-based bimetallic spinels, because MIL as the source of Fe can increase the Fe content in the catalysts compared to other Fe sources.…”

Redox insights and OER activity in 3D-MOFs: the role of alkali metal ions

“…Kim et al reported mesoporous K-doped NiCo 2 O 4 materials for the OER, where the in situ presence of redox inactive foreign cations enhanced the OER activity with improved charge transfer at the interface. 29 Inspired by the advantage of having K + ions in the interior structure of an electrocatalyst that has a high surface-to-volume ratio, herein, we have synthesized two Co( ii )-based MOF materials having an ionic K + ion layer (Set- 2 and Set- 3 ) from the previously reported CP 1 (ref. 30) (Set- 1 ), to perform the electrocatalytic OER in 0.5 M KOH solution.…”