Materials Today, Год журнала: 2025, Номер unknown
Опубликована: Май 1, 2025
Язык: Английский
Materials Horizons, Год журнала: 2025, Номер 12(6), С. 1757 - 1795
Опубликована: Янв. 1, 2025
Noble metal-based oxide electrocatalysts are essential for the development of H 2 production technology by water electrolysis, and this review summarises recent research progress noble metal oxides in field electrolysis.
Язык: Английский
Процитировано
5
Advanced Energy Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 9, 2024
Abstract Although ruthenium dioxide (RuO 2 ) is an efficacious oxygen evolution reaction (OER) catalyst in acidic media, its performance alkaline conditions subpar and it also ineffective for hydrogen (HER) common electrolytes. Here, effective phosphorus (P)‐doping strategy introduced to manipulate the d ‐band center of (Ru) sites, attenuating adsorption energy HER intermediates lowering barrier OER, thereby significantly accelerating both OER performance. The representative 10%P‐RuO nanofibers (NFs) presents ultralow overpotential 177.9 mV at 1 A cm −2 long‐term stability 300 h m KOH toward HER, greatly exceeding those benchmark platinum (Pt)/C catalyst. Moreover, NFs exhibits exceptional with a low 250 10 mA (η desirable 150 , which far better than commercial RuO many other typical previously reported catalysts. Additionally, overall water electrolytic cell using as anode cathode necessitates working voltage 1.52 V demonstrates over 100 outperforming electrolysis cells.
Язык: Английский
Процитировано
17
Nano Research, Год журнала: 2024, Номер 17(8), С. 7504 - 7512
Опубликована: Июнь 14, 2024
Язык: Английский
Процитировано
7
Journal of Material Science and Technology, Год журнала: 2025, Номер unknown
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1
Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Март 4, 2025
The polymetallic alloy nanostructure has received widespread attention in electrocatalytic reactions due to the variability composition and excellent performance. However, controllable synthesis of one-dimensional (1D) nanomaterials remains a significant challenge. Herein, we propose new general low-temperature method prepare library binary septenary nanotubes, this can be used synthesize 18 kinds nanotube (NT), including eight high-entropy (HEA) NT. A representative Cu30Ni26Co19Ru14Ir11 HEA NT demonstrates efficient stable catalytic performance for both oxygen evolution reaction (OER) hydrogen (HER). exhibits an overpotential only 121 mV HER 272 OER, respectively, when measured at current density 100 mA cm-2. In addition, two-electrode system comprising impressive efficiency cm-2 during overall water splitting, requiring potential 1.67 V. high activity is attributed downward shift d-band center. HER, center reduce binding energy with *H, which beneficial desorption process hydrogen. also barrier associated rate-determining step from *O *OOH. This work seeks offer synthesizing nanotubes structures compositions under mild conditions.
Язык: Английский
Процитировано
1
Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(31), С. 19958 - 19967
Опубликована: Янв. 1, 2024
Wrinkled Ir-doped manganese oxide (Ir-MnO x ) nanospheres have been prepared via a facile metal–organic framework-directed strategy as pH-universal OER electrocatalysts.
Язык: Английский
Процитировано
5
Rare Metals, Год журнала: 2025, Номер unknown
Опубликована: Янв. 9, 2025
Язык: Английский
Процитировано
0
ACS Applied Nano Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 28, 2025
Язык: Английский
Процитировано
0
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 16, 2025
Abstract Constructing synergistic dual sites has been well‐recognized as an updated avenue in constructing binary‐component Pt/support compounds such materials undergo undesirable interfacial barriers and complicated synthesis. Here integration of ultrafine Pt nanocrystals on oxygen‐deficient CoMoO 4 nanosheets is reported that achieved superior alkaline hydrogen evolution reaction (HER) activity (110 mV @ 1000 mA cm −2 ) with a reversed deliver effect between bifunctional active sites. With perceptions from comprehensive experimental theoretical results, the HER process occurs three steps: pronounced water dissociation capability , facile transfer to nanoparticles, optimized desorption catalytic site. Thanks site effect, Pt/CoMoO catalyst boosts large‐density seawater electrolysis anion exchange membrane electrolyzer (AEM). This work not only provides valid intensification strategy aimed at support‐type electrocatalysts but also takes insights into dual‐site mechanisms for high‐performance HER.
Язык: Английский
Процитировано
0
Advanced Science, Год журнала: 2025, Номер unknown
Опубликована: Март 19, 2025
Abstract Developing diverse methods to approach highly crystalline covalent organic frameworks (COFs) for improvement of their electrocatalytic hydrogen evolution reaction (HER) activity is important but very challenging. Herein, the first time, an electrochemically‐driven reconstruction strategy demonstrated convert semi‐polymerized low‐crystalline COFs into crystalline, structurally ordered with enhanced HER activity. In situ and ex characterizations reveal that cyclic voltammetry (CV) cycles can promote crystallinity, thereby leading improved conductivity, increased active site density, superior stability. As a result, COF achieves low overpotentials 103.6 219.4 mV at 10 50 mA cm −2 , respectively, excellent stability (1200 h ). More importantly, this generalizable effective various imine‐linked different bonding types, significantly improving crystallinity This work not only establishes novel method constructing also demonstrates versatility electrochemically driven structural modulation in enhancing catalytic performance COFs.
Язык: Английский
Процитировано
0