Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: 988, P. 174250 - 174250
Published: March 23, 2024
Language: Английский
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: March 29, 2024
Abstract Establishing appropriate metal-support interactions is imperative for acquiring efficient and corrosion-resistant catalysts water splitting. Herein, the interaction mechanism between Ru nanoparticles a series of titanium oxides, including TiO, Ti 4 O 7 TiO 2, designed via facile non-stoichiometric engineering systematically studied. 7, with unique band structure, high conductivity chemical stability, endows ingenious through interfacial Ti–O–Ru units, which stabilizes species during OER triggers hydrogen spillover to accelerate HER kinetics. As expected, Ru/Ti displays ultralow overpotentials 8 mV 150 long operation 500 h at 10 mA cm −2 in acidic media, expanded pH-universal environments. Benefitting from excellent bifunctional performance, proton exchange membrane anion electrolyzer assembled achieves superior performance robust operation. The work paves way energy conversion devices.
Language: Английский
Citations
89
Nano Energy, Journal Year: 2023, Volume and Issue: 120, P. 109155 - 109155
Published: Dec. 2, 2023
Language: Английский
Citations
55
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Sept. 27, 2024
Language: Английский
Citations
42
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(18)
Published: Feb. 23, 2024
Abstract Developing ruthenium‐based heterogeneous catalysts with an efficient and stable interface is essential for enhanced acidic oxygen evolution reaction (OER). Herein, we report a defect‐rich ultrathin boron nitride nanosheet support relatively independent electron donor acceptor sites, which serves as reservoir receiving station RuO 2 , realizing the rapid supply reception of electrons. Through precisely controlling interface, low OER overpotential only 180 mV (at 10 mA cm −2 ) long‐term operational stability (350 h) are achieved, suggesting potential practical applications. In situ characterization theoretical calculations have validated existence localized electronic recycling between BN nanosheets (BNNS). The electron‐rich Ru sites accelerate adsorption water molecules dissociation intermediates, while interconnection O‐terminal B‐terminal edge establishes back‐donation, effectively suppressing over‐oxidation lattice oxygen. This study provides new perspective constructing highly active catalytic interface.
Language: Английский
Citations
41
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
A comprehensive summary of the stability electrocatalytic OER will provide insight into electrocatalyst design and device optimization for industrial applications.
Language: Английский
Citations
38
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(36)
Published: June 15, 2024
Although Ru-based materials are among the outstanding catalysts for oxygen evolution reaction (OER), instability issue still haunts them and impedes widespread application. The of OER is generally ascribed to formation soluble species through over-oxidation Ru structural decomposition caused by involvement lattice oxygen. Herein, an effective strategy selectively activating around site proposed improve activity stability. Our synthesized spinel-type electrocatalyst Zn co-doped Co
Language: Английский
Citations
33
Carbon Neutralization, Journal Year: 2024, Volume and Issue: 3(2), P. 172 - 198
Published: Feb. 26, 2024
Abstract Water splitting is a critical process for the production of green hydrogen, contributing to advancement circular economy. However, application water devices on large scale primarily impeded by sluggish oxygen evolution reaction (OER) at anode. Thus, developing and designing efficient OER catalysts significant target. NiFe‐based are extensively researched as excellent electrocatalysts due their affordability, abundant reserves, intrinsic activities. they still suffer from long‐term stability challenges. To date, few systematic strategies improving durability have been reported. In this review, various advanced introduced. Moreover, challenges in alkaline media, including iron segregation, structural degradation, peeling substrate summarized. More importantly, enhance highlighted opportunities discussed facilitate future studies electrolysis. This review presents design strategy anion exchange membrane (AEM) electrolyzers overcome OER, which also emphasizes importance media its significance achieving large‐scale commercialization.
Language: Английский
Citations
31
Progress in Materials Science, Journal Year: 2024, Volume and Issue: 145, P. 101294 - 101294
Published: April 5, 2024
Language: Английский
Citations
31
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(20)
Published: March 18, 2024
Abstract Design the electrocatalysts without noble metal is still a challenge for oxygen evolution reaction (OER) in acid media. Herein, we reported manganese (Mn) doping method to decrease concentration of vacancy (V O ) and form Mn−O structure adjacent octahedral sites spinel NiCo 2 4‐δ (NiMn 1.5 Co 3 ), which highly enhanced activity stability with low overpotential ( η 280 mV at j =10 mA cm −2 long‐term 80 h The isotopic labelling experiment based on differential electrochemical mass spectrometry (DEMS) clearly demonstrated lattice NiMn more stable due strong bond shows synergetic adsorbate mechanism (SAEM) OER. Density functional theory (DFT) calculations reveal increased formation energy (E VO after Mn doping. More importantly, hydrogen bonding between *OOH adsorbed promote *OO from greatly charge density substituted sites.
Language: Английский
Citations
30
Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 350, P. 123940 - 123940
Published: April 24, 2024
Language: Английский
Citations
30