Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158458 - 158458
Опубликована: Дек. 9, 2024
Язык: Английский
Nature Communications, Год журнала: 2024, Номер 15(1)
Опубликована: Авг. 5, 2024
Electrocatalytic H
Язык: Английский
Процитировано
66
Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 110861 - 110861
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
4
Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(47)
Опубликована: Авг. 29, 2024
Abstract Direct electrochemical seawater splitting is a renewable, scalable, and potentially economic approach for green hydrogen production in environments where ultra‐pure water not readily available. However, issues related to low durability caused by complex ions pose great challenges its industrialization. In this review, mechanistic analysis of electrolytic discussed. We critically analyze the development electrolysis identify at both anode cathode. Particular emphasis given elucidating rational strategies designing electrocatalysts/electrodes/interfaces with long lifetimes realistic including inducing passivating anion layers, preferential OH − adsorption, employing anti‐corrosion materials, fabricating protective immobilizing Cl on surface electrocatalysts, tailoring adsorption sites, inhibition binding Mg 2+ Ca , hydroxide precipitation adherence, co‐electrosynthesis nano‐sized hydroxides. Synthesis methods electrocatalysts/electrodes innovations electrolyzer are also Furthermore, prospects developing technologies clean generation summarized. found that researchers have rethought role ions, as well more attention cathodic reaction electrolyzers, which conducive accelerate commercialization electrolysis.
Язык: Английский
Процитировано
14
ACS Catalysis, Год журнала: 2024, Номер 14(16), С. 12051 - 12063
Опубликована: Июль 29, 2024
Constructing a direct hydrazine fuel cell (DHzFC)-driven overall splitting (OHzS) system is conceptual idea for hydrogen generation with theoretical zero-energy consumption, which remains formidable challenge. Herein, two-dimensional Ru-enriched metal–organic framework catalyst (NiRu-ABDC) prepared via self-sacrificing template strategy. The experimental and density functional theory (DFT) calculation results indicate that Ru serves as an active site both the evolution reaction (HER) oxidation (HzOR), endowing NiRu-ABDC∥NiRu-ABDC outstanding OHzS performance. DFT further clarify incorporation facilitates electron localization strengthens M–O bonds in Ni-ABDC framework, enabling electrolyzer to be stable over 100 h. Further, self-powered production constructed anodic NiRu-ABDC, successfully powered by synthesized DHzFCs, achieving yield of 14.3 mol h–1 m–2, showing its feasibility practical applications.
Язык: Английский
Процитировано
11
Nano Research, Год журнала: 2024, Номер 17(11), С. 9483 - 9489
Опубликована: Авг. 1, 2024
Язык: Английский
Процитировано
9
Catalysts, Год журнала: 2024, Номер 14(10), С. 689 - 689
Опубликована: Окт. 3, 2024
Two-dimensional transition metal dichalcogenides (TMDs), also known as MX2, have attracted considerable attention due to their structure analogous graphene and unique properties. With superior electronic characteristics, tunable bandgaps, an ultra-thin two-dimensional structure, they are positioned significant contenders in advancing electrocatalytic technologies. This article provides a comprehensive review of the research progress TMDs field water splitting. Based on fundamental properties principles electrocatalysis, strategies enhance performance through layer control, doping, interface engineering discussed detail. Specifically, this delves into basic properties, reaction mechanisms, measures improve catalytic splitting, including creation more active sites, phase engineering, construction heterojunctions. Research these areas can provide deeper understanding guidance for application thereby promoting development related technologies contributing solution energy environmental problems. hold great potential future needs further explore develop new TMD materials, optimize catalysts achieve efficient sustainable conversion. Additionally, it is crucial investigate stability durability during long-term reactions longevity. Interdisciplinary cooperation will bring opportunities research, integrating advantages different fields from practical application.
Язык: Английский
Процитировано
4
Advanced Science, Год журнала: 2025, Номер unknown
Опубликована: Янв. 15, 2025
RuO2-based materials are considered an important kind of electrocatalysts on oxygen evolution reaction and water electrolysis, but the reported discrepancies activities exist among RuO2 prepared via different processes. Herein, a highly efficient catalysts facile hydrolysis-annealing approach is for electrolysis. The catalyst dealt with at 200 °C (RuO2-200) performs highest both (OER) hydrogen (HER) in acid overpotentials mV OER 66 HER to reach current density 100 mA cm-2 as well stable operation for100 h. high-resolution transmission electron microscopy (HRTEM) X-ray photoelectron spectroscopy (XPS) characterizations show that as-prepared rely hydroxide group/lattice (OH-/O2-) ratio, size, crystalline RuO2. functional theory (DFT) calculation also reveal OH- would enhance modifying electronic structure facilitate intermediate adsorption, thereby reducing energy barrier rate-determining step. electrolysis by using RuO2-200 anode cathode demonstrates generation high Faradic efficiency ≈30 potential below 1.47 V.
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 28, 2025
Abstract Direct seawater electrolysis is key for achieving sustainable green‐hydrogen production and transitioning toward a decarbonized energy system. However, its performance limited by significant challenges, mainly catalyst instability, which caused excessive reconstruction, low catalytic activity, aggressive chlorine‐corrosion. Herein, high‐electronegativity F introduced into NiFe layered double‐hydroxide (F‐NiFe‐LDH) through fluorination engineering to induce electron‐deficient regions around Ni, thus creating abundant intrinsic high‐valence Ni sites. Correspondingly, the features of weak reconstruction accompanied high stability, chlorophobic surface, high‐activity lattice oxygen are produced on F‐NiFe‐LDH, confirmed detailedly experiment theory. Consequently, F‐NiFe‐LDH exhibits superior evolution reaction (OER) activity with overpotentials 306 375 mV reach 500 mA cm −2 at alkaline simulated seawater, respectively. Also, it demonstrates chlorine‐corrosion resistance, along ultra‐stability over 1000 h without degradation, structural collapse, or chlorine oxidation reaction. Furthermore, an anion exchange membrane electrolyzer assembled anode shows consumption only 4.87 kWh Nm −3 hydrogen production. This work provides inspiration designing corrosion‐resistance electrocatalysts aimed oxidation‐free electrolysis, simultaneously achieve stability OER activity.
Язык: Английский
Процитировано
0
Journal of Solid State Electrochemistry, Год журнала: 2025, Номер unknown
Опубликована: Фев. 8, 2025
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160375 - 160375
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
0