Versatile noble-metal-free electrocatalyst synergistically accelerating for the highly comprehensive understanding evidence for Electrochemical Water Splitting: Future Achievements & Perspectives

Self‐supported bimetallic based materials deeply self‐reconstructing electrocatalysts for advances in hydrogen production

“…[2][3][4] Till now, no such electrocatalysts are recently developed for the potential technology to replace the noble metal platinum (Pt) electrocatalyst because due to high cost of Pt makes it not a highly suitable material for climbed and it very strongly directly depends on the new cost and very efficient for the environment-friendly technologies. [5] Therefore, researchers are focusing on searching and evolving alternative electrocatalysts using earth abundant materials and cheap elements. [6,7] It has been found that the pristine metal oxides, particularly in bulk form, are limited by the poor HER activity due to electrocatalytic sharp sites, best for the H kinetics capability, at a very low electrical conductivity, however many of them are active for the OER.…”

Roles of Metal Oxide Nanostructure-Based Substrates in Sustainable Electrochemical Water Splitting: Recent Development and Future Perspective

“…Fabrication of electroactive nanomaterials on the developed hybrid composites on the metal oxide material surface has been regarded as a promising approach, and its focus on controllable morphological designs comprising heterogeneous nanostructures has assisted in optimizing the electrocatalytic properties and charge transfer during water electrolysis. − Metal oxide support-based composites are advantageous for water electrolysis on a commercial scale because (1) TMOs assist in modulating/activating the electronic environment of the top interfacial surface of electrocatalysts because of the synergistic effect between extrinsic and intrinsic catalytic performances of the catalysts along with the substrates, (2) TMOs also act as a support to control the hydrophobicity and hydrophilicity for easier release of the gas bubbles to boost and enhance water electrolysis, (3) TMOs improve mechanical and physical electrocatalytic stability in a harsh alkaline environment, (4) the greater electrical contact between the active sites and TMO-based electrocatalysts ensures faster electronic charge transfer, and (5) TMOs facilitate a larger specified surface area and numerous active sites on the surface among the electrolyte and electrode. A lot of research is ongoing, to discover the role of TMOs as supports in electrocatalysts for the OER and HER, and these studies signify development toward the overall target of commercialized water electrolysis. , However, to the best of our knowledge, till now, no updated review article got published on the progress of metal oxide support-based composite discussion. In this minireview, we have described the current status of metal oxide support-based electrocatalysts for overall water splitting (OER/HER) with the role of TMOs as a support and their future developments for commercial applications.…”

“…A lot of research is ongoing, to discover the role of TMOs as supports in electrocatalysts for the OER and HER, and these studies signify development toward the overall target of commercialized water electrolysis. 59,60 However, to the best of our knowledge, till now, no updated review article got published on the progress of metal oxide support-based composite discussion. In this minireview, we have described the current status of metal oxide support-based electrocatalysts for overall water splitting (OER/HER) with the role of TMOs as a support and their future developments for commercial applications.…”

An inclusive review and perspective on Cu-based materials for electrochemical water splitting

“…Because they require less overpotential and have better electrocatalytic activity in the real reaction process, they are more practical. [29][30][31][32] Their very high prices and little availability make widespread commercial utilization in water electrolysis impossible. 33 Because of the high corrosiveness of the electrolyte, it is also possible for the physical properties of the catalyst to be destroyed; hence, for any application in the real world, these attributes need to be robust and stable 34 , 35 .…”