Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Energy & Environmental Science, Год журнала: 2023, Номер 17(1), С. 49 - 113

Опубликована: Ноя. 7, 2023

This perspective highlights recent advancements in innovative strategies to provide valuable insights into the potential for energy-saving hydrogen production through water electrolysis.

Язык: Английский

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Scalable electrosynthesis of commodity chemicals from biomass by suppressing non-Faradaic transformations

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Сен. 12, 2023

Electrooxidation of biomass platforms provides a sustainable route to produce valuable oxygenates, but the practical implementation is hampered by severe carbon loss stemming from inherent instability substrates and/or intermediates in alkaline electrolyte, especially under high concentration. Herein, based on understanding non-Faradaic degradation, we develop single-pass continuous flow reactor (SPCFR) system with ratio electrode-area/electrolyte-volume, short duration time reactor, and separate feeding substrate solution, thus largely suppressing degradation. By constructing nine-stacked-modules SPCFR system, achieve electrooxidation glucose-to-formate 5-hydroxymethylfurfural (HMF)-to-2,5-furandicarboxylic acid (FDCA) conversion efficiency (SPCE; 81.8% 95.8%, respectively) selectivity (formate: 76.5%, FDCA: 96.9%) at concentrations 562.8 mM, 556.9 mM). Furthermore, demonstrate kilogram-scale electrosynthesis potassium diformate (0.7 kg) wood soybean oil, FDCA (1.17 HMF. This work highlights importance providing opportunities for scalable upgrading using electrochemical technology.

Язык: Английский

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Tandem cells for unbiased photoelectrochemical water splitting

Chemical Society Reviews, Год журнала: 2023, Номер 52(14), С. 4644 - 4671

Опубликована: Янв. 1, 2023

This review describes the fundamentals of PEC tandem cells and current status optimised photoelectrodes for cells. The challenges perspectives unbiased water splitting are discussed.

Язык: Английский

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Unlocking Efficient Hydrogen Production: Nucleophilic Oxidation Reactions Coupled with Water Splitting

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июнь 10, 2024

Abstract Electrocatalytic water splitting driven by sustainable energy is a clean and promising water‐chemical fuel conversion technology for the production of high‐purity green hydrogen. However, sluggish kinetics anodic oxygen evolution reaction (OER) pose challenges large‐scale hydrogen production, limiting its efficiency safety. Recently, OER has been replaced nucleophilic oxidation (NOR) with biomass as substrate coupled (HER), which attracted great interest. Anode NOR offers faster kinetics, generates high‐value products, reduces consumption. By coupling reaction, can be enhanced while yielding products or degrading pollutants. Therefore, NOR‐coupled HER another new electrolytic strategy after significance realizing development global decarbonization. This review explores potential reactions an alternative to delves into mechanisms, guiding future research in production. It assesses different methods, analyzing pathways catalyst effects. Furthermore, it evaluates role electrolyzers industrialized discusses prospects challenges. comprehensive aims advance efficient economical

Язык: Английский

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Electrocatalytic urea oxidation: advances in mechanistic insights, nanocatalyst design, and applications

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(28), С. 15100 - 15121

Опубликована: Янв. 1, 2023

The advancement of UOR is hindered by sluggish kinetics. Hence, we overview mechanisms, nanocatalyst design strategies, and applications in energy conversion to reduce consumption broaden the research fields electrocatalysis.

Язык: Английский

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Electrochemical Oxidation of Small Molecules for Energy‐Saving Hydrogen Production

Advanced Energy Materials, Год журнала: 2024, Номер 14(30)

Опубликована: Май 27, 2024

Abstract Electrochemical water splitting is a promising technique for the production of high‐purity hydrogen. Substituting slow anodic oxygen evolution reaction with an oxidation that thermodynamically more favorable enables energy‐efficient Moreover, this approach facilitates degradation environmental pollutants and synthesis value‐added chemicals through rational selection small molecules as substrates. Strategies small‐molecule electrocatalyst design are critical to electrocatalytic performance, focus on achieving high current density, selectivity, Faradaic efficiency, operational durability. This perspective discusses key factors required further advancement, including technoeconomic analysis, new reactor system design, meeting requirements industrial applications, bridging gap between fundamental research practical product detection separation. aims advance development hybrid electrolysis applications.

Язык: Английский

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Multi-site catalysis of high-entropy hydroxides for sustainable electrooxidation of glucose to glucaric acid

Energy & Environmental Science, Год журнала: 2024, Номер 17(9), С. 3042 - 3051

Опубликована: Янв. 1, 2024

Multi-site catalysis of high-entropy hydroxides for co-production glucaric acid and ammonia.

Язык: Английский

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Designing efficient catalysts for electrocatalytic organic synthesis: From electronic structure to adsorption behavior

Matter, Год журнала: 2024, Номер 7(2), С. 456 - 474

Опубликована: Янв. 21, 2024

Язык: Английский

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Electroreductive upgradation of biomass into high-value chemicals and energy-intensive biofuels

Green Chemistry, Год журнала: 2024, Номер 26(5), С. 2454 - 2475

Опубликована: Янв. 1, 2024

Recent advances in electroreductive upgradation of biomass to high-value chemicals and energy-intensive biofuels via various transformation routes are showcased.

Язык: Английский

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Recent advances in non‐noble metal‐based electrocatalysts for hybrid water electrolysis systems

Carbon Energy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Abstract The electrocatalytic water‐splitting process is widely acknowledged as the most sustainable and environmentally friendly technology for hydrogen (H 2 ) production. However, its energy efficiency significantly constrained by kinetically slow oxygen evolution reaction (OER) at anode, which accounts about 90% of electrical consumption in process. A new strategy urgently needed to reduce consumption. In recent years, electrochemical oxidation small molecules has been considered replacement OER efficient H production, due benign operational conditions, low theoretical thermodynamic potential, high conversion selectivity, environmental sustainability. Hybrid electrolysis systems, integrating cathodic with anodic molecules, have introduced, can generate high‐purity produce value‐added products or pollutant degradation. this review, we highlight advancements significant milestones achieved hybrid water systems. focus on non‐noble metal electrocatalysts, mechanisms, construction electrolyzers. Additionally, present prevailing challenges future perspectives pertinent burgeoning technology.

Язык: Английский

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