Novel Pt-carbon core–shell decorated hierarchical CoMo2S4 as efficient electrocatalysts for alkaline/seawater hydrogen evolution reaction

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145348 - 145348

Published: Aug. 9, 2023

Language: Английский

---

Transformative Removal of Aqueous Micropollutants into Polymeric Products by Advanced Oxidation Processes

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(11), P. 4844 - 4851

Published: Feb. 22, 2024

This perspective presents the latest advancements in selective polymerization pathways advanced oxidation processes (AOPs) for removal of featured organic pollutants wastewater. In radical-based homogeneous reactions, SO4• –-based systems exhibit superior oxidative activity toward aromatics with electron-donating substituents via single electron transfer and radical adduct formation (RAF). The produced cations subsequently undergo coupling reactions to produce polymers. For •OH-based oxidation, metal ions facilitate production monomer radicals RAF. Additionally, heterogeneous catalysts can mediate both persulfate activation without generating inorganic radicals. Metal-based will a direct pathway polymerization. contrast, carbon-based induce low-molecular-weight oligomers (≤4 units) an process. comparison mineralization, remarkably reduce peroxide usage, quickly separate from aqueous phase, generate polymeric byproducts. Thus, AOP-driven hold significant promise reducing carbon emission realizing recycling water treatment processes.

Language: Английский

---

Acidic enol electrooxidation-coupled hydrogen production with ampere-level current density

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: July 14, 2023

Hydrogen production coupled with biomass upgrading is vital for future sustainable energy developments. However, most electrooxidation reactions suffer from high working voltage and low current density, which substantially hinder large-scale industrial applications. Herein, we report an acidic hydrogen system that combined anodic ascorbic acid cathodic evolution. Unlike C-H O-H bonds cleavage slow kinetics in conventional organic oxidation, the highly active enol structure allows ultralow overpotential of only 12 mV@10 mA/cm2 using Fe single-atom catalysts, reaches 1 A/cm2 at 0.75 V (versus reversible electrode) approximately 100% Faraday efficiency production. Furthermore, fabricated two-electrode membrane-free electrolyser delivers density 2 A/[email protected] 60 °C (2.63 kWh/Nm3 H2), requires half electricity consumption water electrolysis (~5 H2). This work provides a new avenue achieving industrial-scale biomass.

Language: Английский

---

Electrochemical evolution of a metal oxyhydroxide surface on two‐dimensional layered metal phosphorus trisulfides enables the oxidation of amine to nitrile

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Selective oxidation of amines to imines through electrocatalysis is an attractive and efficient way for the chemical industry produce nitrile compounds, but it limited by difficulty designing catalysts lack understanding mechanism catalysis. Herein, we demonstrate a novel strategy generation oxyhydroxide layers on two‐dimensional iron‐doped layered nickel phosphorus trisulfides (Ni 1− x Fe PS 3 ) during benzylamine (BA). In‐depth structural surface characterizations electrocatalytic process combined with theoretical calculations reveal that Ni (1− undergoes reconstruction under alkaline conditions form metal oxyhydroxide/phosphorus trichalcogenide (NiFeOOH/Ni heterostructure. Interestingly, generated heterointerface facilitates BA low onset potential 1.39 V Faradaic efficiency 53% benzonitrile (BN) synthesis. Theoretical further indicate as‐formed NiFeOOH/Ni heterostructure could offer optimum free energy adsorption BN desorption, resulting in promising

Language: Английский

---

Electro‐Synthesis of Organic Compounds with Heterogeneous Catalysis

Advanced Science, Journal Year: 2022, Volume and Issue: 10(1)

Published: Nov. 18, 2022

Electro-organic synthesis has attracted a lot of attention in pharmaceutical science, medicinal chemistry, and future industrial applications energy storage conversion. To date, there not been detailed review on electro-organic with the strategy heterogeneous catalysis. In this review, most recent advances synthesizing value-added chemicals by catalysis are summarized. An overview electrocatalytic oxidation reduction processes as well paired electrocatalysis is provided, anodic alcohols (monohydric polyhydric), aldehydes, amines discussed. This also provides in-depth insight into cathodic carboxylates, carbon dioxide, CC, C≡C, reductive coupling reactions. Moreover, electro-synthesis methods, including parallel paired, sequential divergent convergent electrolysis, Additionally, strategies developed to achieve high electrosynthesis efficiency associated challenges addressed. It believed that promising direction organic electrochemistry, offering numerous opportunities develop new reaction methods.

Language: Английский

---

Recent Advances in Multicomponent Electro‐Organic (Electrochemical) Synthesis of Heterocycles

Asian Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 12(8)

Published: July 20, 2023

Abstract In terms of pharmaceuticals and biological applications, synthesis complex organic molecules is a significant fast‐developing area. this context, electrosynthesis an alternative way to the traditional methods for chemo‐, regio‐, stereoselective syntheses. Electro‐organic reactions occur at room temperature normal pressure, through transferring electrons. It has been found that mild approach preparing electrophilic substrates, bases, nucleophiles in situ , from highly stable low‐level reagents; which can be further applied make heterocycles more accessible. While several promising exist, multi‐component (MCRs) have drawn much attention both academia industry worldwide, since they are cost‐efficient environmentally friendly. Combining MCRs produced great strategy field research. This review focuses on recent advances electrochemical heterocyclic compounds via reactions, reported between 2015 March 2023.

Language: Английский

---

Electrochemical hydrogenation of levulinic acid, furfural and 5-hydroxymethylfurfural

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 343, P. 123576 - 123576

Published: Nov. 29, 2023

Language: Английский

---

Rational coupling of selective electrochemical oxidation and reduction reactions for in-situ value-added chemical generation

Fuel, Journal Year: 2024, Volume and Issue: 367, P. 131408 - 131408

Published: March 16, 2024

Language: Английский

---

The critical role of Ru-like hydrogen adsorption of carbon dots in a carbon-confined Ru system for boosted HER activity

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(15), P. 8707 - 8717

Published: Jan. 1, 2024

Ru/NCDs with ruthenium (Ru) nanoparticles loaded on N-doped carbon dots were constructed. The confinement effect and Ru-like hydrogen adsorption capacity of NCDs effectively facilitate the spillover process boost HER activity.

Language: Английский

---

Synthesis and Electrocatalytic Applications of Layer‐Structured Metal Chalcogenides Composites

Small, Journal Year: 2024, Volume and Issue: 20(26)

Published: Jan. 14, 2024

Abstract Featured with the attractive properties such as large surface area, unique atomic layer thickness, excellent electronic conductivity, and superior catalytic activity, layered metal chalcogenides (LMCs) have received considerable research attention in electrocatalytic applications. In this review, approaches developed to synthesize LMCs‐based electrocatalysts are summarized. Recent progress composites for electrochemical energy conversion applications including oxygen reduction reaction, carbon dioxide evolution hydrogen overall water splitting, nitrogen reaction is reviewed, potential opportunities practical obstacles development of high‐performing active substances also discussed. This review may provide an inspiring guidance developing high‐performance LMCs

Language: Английский

---