Synergistic flower-like N-doped Co/Mo2C catalyst for hydrogen evolution reaction in universal pH and high-performance alkaline water-splitting

Materials Today Chemistry, Год журнала: 2025, Номер 43, С. 102476 - 102476

Опубликована: Янв. 1, 2025

Язык: Английский

---

Manipulating d‐Band Center of Ru Sites in Branched RuO₂ Nanofibers Enables Significantly Enhanced Alkaline Overall Water Splitting Performance

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

---

Surface S-Doped Nanostructured RuO₂ and Its Anion Passivating Effect for Efficient Overall Seawater Splitting

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Electrolysis of seawater for hydrogen (H2) production to harvest clean energy is an appealing approach. In this context, there urgent need catalysts with high activity and durability. RuO2 electrocatalysts have shown efficient in the oxygen evolution reactions (HER OER), but they still suffer from poor stability. Herein, surface S-doped nanostructured (S-RuO2) rationally fabricated overall splitting. Doping S enhances (overpotentials 25 mV HER 243 long-term durability (1000 h at 100 mA cm–2), achieves nearly 100% Faraday efficiency (FE). Moreover, S-RuO2-based anion exchange membrane electrolyzer requires 2.01 V reach 1.0 A cm–2 under demanding industrial conditions. Experimental analysis theoretical calculations indicate that introduction could lower valence state Ru, thereby conferring enhanced Furthermore, S-RuO2 electrocatalyst highly protected by surface, which repels Cl– alkaline seawater. This investigation presents a feasible strategy designing RuO2-based splitting both performance good resistance anodic corrosion.

Язык: Английский

---

Graphite carbon nitride-based metal-free bifunctional electrocatalysts for anion exchange membrane water electrolyzer

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер unknown, С. 119111 - 119111

Опубликована: Апрель 1, 2025

Язык: Английский

---

Coupling of precisely engineered Co3O4@FeCo2S4 with a Mo2TiC2Tx MXene architecture to produce a durable bifunctional electrocatalyst for efficient water electrolysis

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 102, С. 321 - 331

Опубликована: Янв. 11, 2025

Язык: Английский

---

Rapid synthesis of PtRu nanoparticles on aniline-modified SWNTs in EMSI engineering for enhanced alkaline water electrolysis

Journal of Power Sources, Год журнала: 2025, Номер 631, С. 236297 - 236297

Опубликована: Янв. 25, 2025

Язык: Английский

---

Nanofibrous Ru/SnO2 heterostructure as robust bifunctional electrocatalyst for high-performance overall hydrazine splitting and Zn-hydrazine battery

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 684, С. 43 - 51

Опубликована: Янв. 11, 2025

Язык: Английский

---

Modulation of electrospun nanomaterials for boosting electrocatalytic water splitting

Journal of Electroanalytical Chemistry, Год журнала: 2025, Номер unknown, С. 118941 - 118941

Опубликована: Янв. 1, 2025

Язык: Английский

---

Phase-tunable cobalt borides with amorphous shell toward highly efficient oxygen evolution reaction

Journal of Power Sources, Год журнала: 2025, Номер 631, С. 236255 - 236255

Опубликована: Янв. 20, 2025

Язык: Английский

---

Synergistic Effect between Co₂P/Fe₂P Nanoparticles and NiFe Layered Double Hydroxides Promotes Urea Oxidation Reaction-Assisted Hydrogen Production

ACS Applied Nano Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Язык: Английский

---