A phase and interface co-engineered MoP_xS_y@NiFeP_xS_y@NPS-C hierarchical heterostructure for sustainable oxygen evolution reaction

Abstract

The construction of heterostructures with engineered phases and interfaces is crucial to essentially reform the oxygen evolution reaction (OER) in water splitting. Herein, a fine ion exchange route combined subsequent...

Synergistically coupling CoS/FeS2 heterojunction nanosheets on a MXene via a dual molten salt etching strategy for efficient oxygen evolution reaction

“…Considering the four basic proton–electron transfer steps in an alkaline medium, the adsorption models of the catalyst sequentially coupling with different oxygen-containing intermediates are illustrated in Fig. S30–S32 † 7,58 . According to the Gibbs free energy calculations for these oxygen-containing intermediates (Fig.…”

“…, Ir/Ru and their oxides) are extensively employed as catalysts for the OER, yet they are still limited by scarcity and high cost. 7–10 Consequently, the abundant and cost-effective transition metal sulfides (TMSs) have attracted much attention, and the OER performance can be improved through the regulation of their properties. 11 One approach to enhance the OER efficiency of TMSs involves manipulating their crystal structure and morphology, such as synthesizing nanospheres, nanowires, or nanosheets, in order to increase both the specific surface area and the number of active sites.…”

Interface-Engineered Cu/Cu2In Metallic Aerogels for Efficient Electrochemical CO2 Reduction

“…Tremendous efforts have been made by scientisits to explore strategies for regulating catalysts such as interface engineering, defective engineering, doping strategy, etc. − Wherein, interface engineering plays a key role in optimizing electron transport and product types, as well as balancing the adsorption and desorption of intermediates on the catalysts. − Furthermore, the interaction between two different components at the interfaces also enhances the stability during the electrocatalytic process. , In addition, the interface ratio of the catalysts also has a great influence on the reaction rate and reaction path . On the other hand, electrochemically active surface area (ECSA), which is an important parameter to assess the number of active sites, has a significant influence on catalytic activity of catalysts.…”

“…16−21 Furthermore, the interaction between two different components at the interfaces also enhances the stability during the electrocatalytic process. 22,23 In addition, the interface ratio of the catalysts also has a great influence on the reaction rate and reaction path. 24 On the other hand, electrochemically active surface area (ECSA), which is an important parameter to assess the number of active sites, has a significant influence on catalytic activity of catalysts.…”

Research on the interfacial bonding performance of novel composite L‐shaped concrete‐filled steel tubes

“…While conventional specially shaped CFSTs (Figure 1a) can effectively resolve the problem of protruding column edges, numerous research results indicate that the steel plates at their concave side are susceptible to significant deformation and damage under loading, resulting in a substantial reduction in the members' bearing capacity and ductility 9,10 . To augment the constraining influence of uniquely shaped steel tubes on concrete, scholars have proposed various structural measures (e.g., adding stiffening ribs, 11–15 installing restraint bars, 16–18 and using combinations of multiple rectangular steel tubes 19–23 ) to delay or prevent local buckling, as depicted in Figure 1b,d. Although these structural measures have to some extent addressed the issue of local weakness at the concave side of specially shaped cross‐sections, they have also increased the difficulty of on‐site member fabrication.…”