In situ growth of volcano-like FeIr alloy on nickel foam as efficient bifunctional catalyst for overall water splitting at high current density

Self‐Supported Electrocatalysts for Practical Water Electrolysis

“…The degradation mechanism of such electrodes was systematically studied to understand the crucial parameters that are required for stabilizing the active sites on the surface of the electrodes. [28,42,152,221,[241][242][243] One of the important factors worth highlighting is the degradation mechanism of most TM-based self-supported electrocatalysts during the water electrolysis process, particularly under the anodic water oxidation reaction where usually the severe reconstruction occurs. In this regard, the aggregation of reconstructed nanostructures and bury of active sites, as well as the (partial or complete) dissolution of components easily occurs, leading to the obvious deterioration of catalytic performance.…”

Au Nanoparticle Modification Induces Charge-Transfer Channels to Enhance the Electrocatalytic Hydrogen Evolution Reaction of InSe Nanosheets

“…Hydrogen evolution reaction (HER) serves as a key technology of new energy, and the hydrogen–oxygen fuel cell has potential application prospects. − The parameters that restrict the performance of the electrocatalytic HER usually include carrier mobility, number of electrocatalytic active sites, and catalytic activity. − In the past few years, the morphology and structure of catalysts have been designed to increase the catalytically active sites of non-noble metals, thereby improving the performance of electrocatalysts. , Such as porous structure, , network structure, , and self-integrated three-dimensional (3D) structure (nanospheres and nanoflowers). However, the synthesis of these special structures usually requires complicated processes, and it is difficult to achieve a controlled growth process.…”

“…4−8 In the past few years, the morphology and structure of catalysts have been designed to increase the catalytically active sites of non-noble metals, thereby improving the performance of electrocatalysts. 9,10 Such as porous structure, 11,12 network structure, 13,14 and self-integrated three-dimensional (3D) structure (nanospheres 15 and nanoflowers 16 ). However, the synthesis of these special structures usually requires complicated processes, and it is difficult to achieve a controlled growth process.…”

In situ synthesis of morphology-controlled MoOx/Fe1−xS bifunctional catalysts for high-efficiency and stable alkaline water splitting

“…[24][25][26] The use of a powder catalyst and a binder (Nafion) coated on the current collector, on the other hand, causes catalyst shedding during a high current catalytic process, as well as a high interfacial resistance between the catalyst and the current collector, which does not guarantee long-term stability at high current densities. [27][28][29] In contrast, self-supporting electrodes can directly engage in the reaction and catalytic process, effectively avoiding these problems.…”