Hydrogen and value-added products yield from hybrid water electrolysis: A critical review on recent developments

Alleviating the competitive adsorption of hydrogen and hydroxyl intermediates on Ru by d–p orbital hybridization for hydrogen electrooxidation

“…[1][2][3] One of the most important advantages is that the electrocatalysts for the cathodic oxygen reduction reaction could get rid of the dependence on platinum group metals (PGMs) compared to the proton exchange membrane-based counterpart operated under harsh acidic conditions. [4][5][6] Nevertheless, the anodic hydrogen oxidation reaction (HOR) in high pH electrolytes suffers from more complex catalytic mechanisms and thus sluggish kinetics. 7,8 Especially for benchmarked commercial Pt/C, two orders of magnitude lowered catalytic activity results in the incremental usage of PGMs, inevitably raising the system cost.…”

Recent Advances in Hydrogen Production from Hybrid Water Electrolysis through Alternative Oxidation Reactions

“…While there have been notable advancements in coupling alternative oxidation reactions with hydrogen evolution reactions in recent decades, practical challenges persist in terms of catalytic activity, selectivity, and energy consumption, highlighting the need for further improvements. [28] In this comprehensive review, our primary focus revolves around the hybrid electrolysis of water and provides a comprehensive overview of potential small molecule compounds that can serve as alternatives to the OER. The review is organized into four distinct sections, each dedicated to different categories of compounds: compounds containing alcohols and aldehydes, biomass-derived compounds, amine compounds, and other small molecules such as enols, carbon monoxide (CO), and sulfide(S 2À ).…”

“…This method opens up new opportunities in designing a system for building unique devices to generate both hydrogen and value‐added chemicals at room temperature by utilizing electric energy from renewable sources. While there have been notable advancements in coupling alternative oxidation reactions with hydrogen evolution reactions in recent decades, practical challenges persist in terms of catalytic activity, selectivity, and energy consumption, highlighting the need for further improvements [28] …”

Cu intercalation and defect engineering realize an atomic-scale hydrogen spillover effect in NbS2 to boost acidic hydrogen evolution

“…Hydrogen (H 2 ) is considered to be a sustainable energy source for the future to replace fossil fuels and solve global environmental and energy issues. [1][2][3][4] The electrochemical hydrogen evolution reaction (HER), as a critical cathodic process in water electrolysis, is a green method to produce H 2 without carbon emission, [5][6][7][8] but it always needs to be accelerated by an electrocatalyst due to its sluggish kinetics. Currently, Pt-based materials are still used as commercial HER catalysts.…”