NiFe LDH Hollow Nanocages Confined Ru Single Atoms for Remarkable Oxygen Evolution Reaction

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Electrocatalysts with a hollow nanocage structure and single atoms (SAs) incorporated into layered double hydroxide (LDH) are highly significant for enhancing the efficiency of electrochemical water splitting. In this study, efficient robust electrocatalyst oxygen evolution reaction (OER) is successfully fabricated by confining Ru SAs within made NiFe LDH. An etching co‐precipitation method used making LDH nanocages integrating to produce Ru‐SAC/NiFe The architecture increases surface area available interaction enhances interface between catalyst electrolyte. synergistic electronic contact led exceptional OER performance low overpotential 196 mV at 10 mA cm ‒2 Tafel slope 40 dec⁻ 1 . Additionally, revealed long‐term stability, 120 h Density functional theory (DFT) calculations show that increased activity because they interacted more strongly intermediates caused positive changes in Gibbs free energy. goal research develop novel approach designing fabricating advanced single‐atomic materials intended use renewable energy applications.

Language: Английский

---

Transition metal induced metal oxide lattice strain for efficient and stable alkaline water splitting

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161686 - 161686

Published: March 1, 2025

Language: Английский

---

Tuning α‐MnOOH Formation via Atomic‐Level Fe Introduction for Superior OER Performance

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract The arrangement of atoms in the catalyst directly impacts catalytic performance. Herein, a heteroatom doping strategy is found as an effective approach for regulation MnO 2 crystal reconstruction during oxygen evolution reaction (OER), thereby ensuring and optimizing performance catalyst. Real‐time tracking dynamic surface reveals that δ‐MnO transforms into less active γ‐MnOOH phase, while single‐atom Fe facilitates formation highly α‐MnOOH phase. asymmetric Fe─O─Mn bonds induce lattice distortions promote electron transfer from to Mn with increase 3 ⁺ content, which conducive intensifying spillover crucial factor OER activity. Theoretical calculations also demonstrate sites regulated representative can reduce energy barrier step process (the *O *OOH transition), thus significantly enhancing typical achieves successful processes through doping, holds significant implications developing new class catalysts, not limited catalysts reported this study.

Language: Английский

---

Toward a molecular-scale picture of water electrolysis: mechanistic insights, fundamental kinetics and electrocatalyst dynamic evolution

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 536, P. 216651 - 216651

Published: April 6, 2025

Language: Английский

---

Precatalysts: A Missing Link in Efficient Oxygen Evolution Electrocatalysis

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: March 4, 2025

Language: Английский

---

Flash calcination breaks the mechanical and catalytical behavior trade-off of alkaline oxygen evolution reaction electrodes

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 640, P. 236787 - 236787

Published: March 15, 2025

Language: Английский

---

Vanadium-Modulated Molybdenum/Nickel-Based Multi-Heterostructures finely tailoring d-Band centers for electrocatalytic water splitting

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 137543 - 137543

Published: April 1, 2025

Language: Английский

---

Deciphering dynamic structural modulation of exogenous Fe3+ integrated into Ni-based anode toward oxygen electrocatalysis for rechargeable zinc-air batteries

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111071 - 111071

Published: April 1, 2025

Language: Английский

---

Side-chain sterically induced directional units construct stable and continuous ion transport channels for anion exchange membranes

Journal of Membrane Science, Journal Year: 2025, Volume and Issue: unknown, P. 124191 - 124191

Published: May 1, 2025

Language: Английский

---

Electrochemical hydrogen evolution reaction enhanced by dynamic bubble-template synthesized CoP/NiCu/cu catalysts

Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 119188 - 119188

Published: May 1, 2025

Language: Английский

---