Facile One-Step Fabrication of 1T-Phase-Rich Bimetallic CoFe Co-Doped MoS2 Nanoflower: Synergistic Engineering for Bi-Functional Water Splitting Electrocatalysis DOI Creative Commons
Xinyue Li,

Yahui Song,

Yiming Huang

и другие.

Molecules, Год журнала: 2025, Номер 30(11), С. 2343 - 2343

Опубликована: Май 27, 2025

MoS2 has emerged as a highly promising catalyst for the hydrogen evolution reaction (HER) owing to its exceptional catalytic properties. However, there is pressing need further enhance reactivity and integrate oxygen (OER) capabilities facilitate industrial implementation. In this context, dual-metal doping approach presents straightforward effective strategy achieve superior performance. Systematic characterization electrochemical evaluations reveal that synergistic effects of Co Fe significantly both HER OER activities, demonstrating remarkable potential practical applications in energy conversion storage systems. The unique flower-like architecture material endows it with substantially enlarged surface area, which increases exposure active sites facilitates enhanced activity. Specifically, achieves low overpotentials −127 292 mV at 10 mA cm−2 alkaline media, respectively, demonstrates excellent stability over h test. This research provides valuable insights into development advanced materials capable efficiently performing processes, paving way sustainable technologies.

Язык: Английский

Potential of CoMn2O4 spinel as soot oxidation catalyst and its kinetics thereof DOI Creative Commons

R. Nithya,

Sunaina S. Patil, Hari Prasad Dasari

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Янв. 7, 2025

Abstract Efficient catalysts for soot oxidation are critical mitigating environmental pollution. In this study, CoMn 2 O 4 spinel were synthesised using reverse co-precipitation and methods to evaluate their performance in kinetic behaviour. All samples exhibited a tetragonal phase (XRD) spherical morphology with rough surfaces (SEM). Raman spectroscopy confirmed structural disorder oxygen vacancies, while XPS analysis revealed the presence of low-valence Mn ions, facilitating vacancy formation oxidation. Additionally, co-existence Co ions contributed synergistic effect, enhancing catalytic properties structure. The method produced catalyst higher concentration vacancies active species among samples. This sample demonstrated superior performance, achieving T 50% 424 °C, low activation energy (153 kJ/mol) pre-exponential factor (25 min − 1 ). Soot TPR highlighted role reducibility, thermogravimetric that factors influenced by surface composition. These findings provide valuable insights into design efficient oxidation, emphasising importance synthesis characteristics.

Язык: Английский

Процитировано

0
Oxygen vacancy and valence engineering in hollow manganese cobalt spinel oxide for oxygen electrocatalysis DOI

Mingrui Wei,

Hui Kang, Yihui Liu

и другие.

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 163076 - 163076

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Engineering Porous Mn–N–C with Abundant Mn–Nx Active Sites for Efficient Oxygen Reduction Reaction via a NaCl Encapsulation–Absorption Strategy DOI
Feng Gu, Jie Wang, Xian Zhang

и другие.

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

Опубликована: Апрель 30, 2025

Язык: Английский

Процитировано

0
Facile One-Step Fabrication of 1T-Phase-Rich Bimetallic CoFe Co-Doped MoS2 Nanoflower: Synergistic Engineering for Bi-Functional Water Splitting Electrocatalysis DOI Creative Commons
Xinyue Li,

Yahui Song,

Yiming Huang

и другие.

Molecules, Год журнала: 2025, Номер 30(11), С. 2343 - 2343

Опубликована: Май 27, 2025

MoS2 has emerged as a highly promising catalyst for the hydrogen evolution reaction (HER) owing to its exceptional catalytic properties. However, there is pressing need further enhance reactivity and integrate oxygen (OER) capabilities facilitate industrial implementation. In this context, dual-metal doping approach presents straightforward effective strategy achieve superior performance. Systematic characterization electrochemical evaluations reveal that synergistic effects of Co Fe significantly both HER OER activities, demonstrating remarkable potential practical applications in energy conversion storage systems. The unique flower-like architecture material endows it with substantially enlarged surface area, which increases exposure active sites facilitates enhanced activity. Specifically, achieves low overpotentials −127 292 mV at 10 mA cm−2 alkaline media, respectively, demonstrates excellent stability over h test. This research provides valuable insights into development advanced materials capable efficiently performing processes, paving way sustainable technologies.

Язык: Английский

Процитировано

0