Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125030 - 125030
Опубликована: Янв. 1, 2025
Язык: Английский
Nature Reviews Materials, Год журнала: 2024, Номер 9(3), С. 173 - 189
Опубликована: Янв. 10, 2024
Язык: Английский
Процитировано
126
InfoMat, Год журнала: 2023, Номер 6(1)
Опубликована: Ноя. 27, 2023
Abstract Electrochemical water splitting represents a promising technology for green hydrogen production. To design advanced electrocatalysts, it is crucial to identify their active sites and interpret the relationship between structures performance. Materials extensively studied as electrocatalysts include noble‐metal‐based (e.g., Ru, Ir, Pt) non‐noble‐metal‐based 3d transition metals) compounds. Recently, advancements in characterization techniques theoretical calculations have revealed novel unusual sites. The present review highlights latest achievements discovery identification of various unconventional electrochemical splitting, with focus on state‐of‐the‐art strategies determining true establishing structure–activity relationships. Furthermore, we discuss remaining challenges future perspectives development next‐generation By presenting fresh perspective reaction involved this aims provide valuable guidance study industrial applications. image
Язык: Английский
Процитировано
103
Chemical Engineering Journal, Год журнала: 2023, Номер 471, С. 144660 - 144660
Опубликована: Июль 11, 2023
Язык: Английский
Процитировано
81
Applied Catalysis B Environment and Energy, Год журнала: 2023, Номер 339, С. 123123 - 123123
Опубликована: Июль 20, 2023
Язык: Английский
Процитировано
67
Advanced Functional Materials, Год журнала: 2023, Номер 34(7)
Опубликована: Окт. 30, 2023
Abstract Owing to the Pt‐like electrocatalytic capability and moderate price, Ru‐based catalysts are considered as Pt alternatives for electrochemical water splitting. However, they demonstrate limited catalytic performance under industrial‐level current densities. Herein, a novel electrocatalyst with an extremely low amount (0.85 wt.%) of Ru nanoclusters anchored on Cr‐doped Fe‐metal–organic frameworks (Ru@Cr─FeMOF) through robust Cr─O─Ru bond is presented. The study unveils that such architecture facilitates fast electron transfer manipulates highest occupied d orbital d‐band centers sites, favoring both oxygen evolution reaction (OER) hydrogen (HER) catalysis. as‐prepared catalyst performs excellent activity 21 mV@10 mA cm −2 HER 230 mV@50 OER in alkaline solution, realizes water‐splitting at densities (1.72 V@1000 ), surpassing state‐of‐the‐art literatures.
Язык: Английский
Процитировано
60
EcoEnergy, Год журнала: 2023, Номер 1(1), С. 16 - 44
Опубликована: Сен. 1, 2023
Abstract Hydrogen produced from electrocatalytic water splitting means is deemed to be a promising route construct low‐carbon, eco‐friendly, and high‐efficiency modern energy system. The design construction of highly active catalysts with affordable prices toward alkaline hydrogen evolution reaction (HER) are effective in accelerating the overall water‐splitting process. So far, ruthenium (Ru) based deliver comparable or even superior catalytic performance relative platinum (Pt)/C benchmark. Combined their price advantage, Ru‐based undoubtedly considered as one perfect alternatives Pt HER. Extensive efforts have been made reasonably synthesize Ru‐related materials, but careful insight into material engineering strategies induced effects remain its infancy. In this review, recent progress on for improving activity catalysts, including electronic regulation, geometric modulation, local structure alteration, self‐optimization strategies, structure–activity relationship comprehensively summarized. Furthermore, challenges perspectives future studies electrocatalysts HER also proposed.
Язык: Английский
Процитировано
58
Advanced Materials, Год журнала: 2024, Номер 36(28)
Опубликована: Апрель 24, 2024
Abstract State‐of‐the‐art Fenton‐like reactions are crucial in advanced oxidation processes (AOPs) for water purification. This review explores the latest advancements heterogeneous metal‐based catalysts within AOPs, covering nanoparticles (NPs), single‐atom (SACs), and ultra‐small atom clusters. A distinct connection between physical properties of these catalysts, such as size, degree unsaturation, electronic structure, state, their impacts on catalytic behavior efficacy reactions. In‐depth comparative analysis metal NPs SACs is conducted focusing how particle size variations metal‐support interactions affect species pathways. The highlights cutting‐edge characterization techniques theoretical calculations, indispensable deciphering complex structural characteristics active sites downsized particles. Additionally, underscores innovative strategies immobilizing onto membrane surfaces, offering a solution to inherent challenges powdered catalysts. Recent advances pilot‐scale or engineering applications Fenton‐like‐based devices also summarized first time. paper concludes by charting new research directions, emphasizing catalyst design, precise identification reactive oxygen species, in‐depth mechanistic studies. These efforts aim enhance application potential nanotechnology‐based AOPs real‐world wastewater treatment.
Язык: Английский
Процитировано
56
Angewandte Chemie International Edition, Год журнала: 2023, Номер 63(7)
Опубликована: Дек. 28, 2023
Abstract Modulating the microenvironment of single‐atom catalysts (SACs) is critical to optimizing catalytic activity. Herein, we innovatively propose a strategy improve local reaction environment Ru single atoms by precisely switching crystallinity support from high crystalline and low crystalline, which significantly improves hydrogen evolution (HER) The catalyst anchored on low‐crystalline nickel hydroxide (Ru−LC−Ni(OH) 2 ) reconstructs distribution balance interfacial ions due activation effect metal dangling bonds support. Single‐site with oxidation state induces aggregation hydronium (H 3 O + ), leading formation acidic in alkaline media, breaking pH‐dependent HER As comparison, high‐crystalline (Ru−HC−Ni(OH) exhibits sluggish Volmer step conventional environment. expected, Ru−LC−Ni(OH) requires overpotentials 9 136 mV at 10 1000 mA cm −2 conditions operates stably 500 for h an seawater anion exchange membrane (AEM) electrolyzer. This study provides new perspective constructing highly active electrocatalysts.
Язык: Английский
Процитировано
46
Advanced Energy Materials, Год журнала: 2024, Номер 14(17)
Опубликована: Янв. 17, 2024
Abstract Understanding and modulating the unique electronic interaction between single‐metal atoms high entropy compounds are of great significance to enable their high‐efficiency oxygen electrocatalysis for aprotic lithium‐oxygen (Li‐O 2 ) batteries. Herein, a novel bi‐functional electrocatalyst is first time created by immobilizing single‐atom ruthenium (Ru) on lanthanum‐based perovskite oxide La(Mn 0.2 Co Fe Ni Cr )O 3 (Ru@HEPO), which demonstrates activity stability in Li‐O The heteronuclear coordination Ru HEPO facilitates fast electron transfer from establishing Ru‐O‐M (M stands Mn, Co, Fe, Ni) bridges, well redistributes electrons within Ru@HEPO hence significantly improving its interfacial charge kinetics electrocatalytic activity. Additionally, strong coupling Mn enhances hybridization 3d O 2p orbitals, promotes inherent affinity toward LiO intermediate, thereby reducing reaction energy barrier electrode. As result, Ru@HEPO‐based batteries deliver remarkable electrochemical performances, such as efficiency (87.3% at 100 mA g −1 ), excellent rate capability (low overpotential 0.52 V durable cyclability (345 cycles 300 ). This work opens up promising avenue development entropy‐based electrocatalysts precisely tailoring distributions an atomic scale.
Язык: Английский
Процитировано
44
Nano Letters, Год журнала: 2024, Номер 24(3), С. 958 - 965
Опубликована: Янв. 11, 2024
Photoelectrochemical (PEC) water splitting in acidic media holds promise as an efficient approach to renewable hydrogen production. However, the development of highly active and stable photoanodes under conditions remains a significant challenge. Herein, we demonstrate remarkable oxidation performance Ru single atom decorated hematite (Fe2O3) photoanodes, resulting high photocurrent 1.42 mA cm–2 at 1.23 VRHE conditions. Comprehensive experimental theoretical investigations shed light on mechanisms underlying superior activity Ru-decorated photoanode. The presence atoms enhances separation transfer photogenerated carriers, facilitating kinetics Fe2O3 surface. This is achieved by creating additional energy levels within bandgap optimizing free adsorption intermediates. These modifications effectively lower barrier rate-determining step for splitting, thereby promoting PEC
Язык: Английский
Процитировано
40