2022年6月1日 · Lu et al. studied the stability of an electrodeposited NiFe/GC electrode towards OER by performing CV measurements in alkaline solution [207].

2024年10月1日 · The 3d orbital of TM-based ORR/OER catalysts and the 2p orbital structure of oxygen-containing reactants and intermediates were analyzed in depth, and the results indicated that there is an optimal value or perfect range in orbital structures for satisfactory ORR/OER electrocatalytic activity because the adsorption energy of the reactant needs ...

2021年9月30日 · Water electrolysis consists of two half-reactions, of which the oxygen evolution reaction (OER) is the major source of energy loss. In the case of the alkaline water electrolysis, the spectrum of materials that are stable under the conditions of the OER is significantly broader than in the case of an acidic route.

2024年1月12日 · Fe–Ni-based alloys of different chemical compositions and different crystallographic orientations between wires and plates were studied as alkaline OER electrocatalysts.

2023年1月19日 · Electrocatalytic water splitting provides an eco-friendly and efficient way to generate hydrogen energy. The anodic half reaction, oxygen evolution reaction (OER), with a four-electron process leads to sluggish kinetics and then high-energy consumption. Devising and synthesis of efficient and low-cost OER catalysts could overcome this issue.

2024年2月20日 · Designing robust and cost-effective electrocatalysts for efficient alkaline oxygen evolution reaction (OER) is of great significance in the field of water electrolysis. In this study, an electrochemical strategy to activate stainless steel (SS) electrodes for efficient OER is introduced.

2023年8月2日 · Oxygen evolution reaction (OER), as the pivotal half-reaction in electrochemical water splitting, is the main bottleneck in the widespread application of water electrolysis due to the low energy efficiency caused by the sluggish kinetics of …

When studying OER catalysts, an essential issue is how to precisely determine the electrochemical surface area (ECSA), which is currently known to be related to EDL capacitance. 17,18 Cyclic voltammetry (CV) is the most popular way …

This review aims to 1) identify the OER catalytic active site of three mainstream types of NPMCs, that is, non-precious metal oxides/ (oxy)hydroxides, metal-free carbon-based materials, and non-precious metal/carbon composites, 2) analyze the possible degradation mechanisms of the catalytic active sites in alkaline media, and 3) provide insights...

We explored different potentials along the anodic branch of the CV from open circuit potential (OCP) up to +900 mV (OER conditions, see Fig. 1b). In addition, the reversibility of the Pt surface chemistry and structure was assessed by returning back to OCP after OER conditions, defined as “OCP after OER”.