Spin‐State Manipulation of Atomic Manganese Center by Phosphide‐Support Interactions for Enhanced Oxygen Reduction DOI Creative Commons

Zuyang Luo,

Jiayin Xie,

Junfang Cheng

et al.

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

Published: May 8, 2025

Oxygen reduction reaction (ORR) kinetics are closely related to the electronic structure of active sites. Herein, a single-atomic Mn catalyst decorated with adjacent MoP nanocrystals (MoP@MnSAC-NC) is reported. The decoration drives transition sites from low-spin high-spin states through an phosphide-support interaction. rearranged electron occupation in 3dxz-yz and 3dz 2 orbitals leads electrons occupying σ orbital Mn─*O2, thereby favoring O2 adsorption initiate ORR mechanism. In situ characterizations confirm that state can activate molecular O₂ optimize *OOH intermediate. As result, MoP@MnSAC-NC displays outstanding alkaline half-wave potential (E1/2 = 0.894 V), excellent peak power densities (173/83 mW cm-2 for liquid/solid-state Zn-air batteries, respectively), long-term stability (840 h) superior commercial Pt/C. This work provides profound insights into spintronics-level engineering, guiding design next-generation high-performance catalysts.

Language: Английский

Anode‐Electrolyte Interfacial Acidity Regulation Enhances Electrocatalytic Performances of Alcohol Oxidations DOI

Bingji Huang,

Jiabiao Yan,

Zhenhua Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: July 8, 2024

The local acidity at the anode surface during electrolysis is apparently stronger than that in bulk electrolyte due to deprotonation from reactant, which leads deteriorated electrocatalytic performances and product distributions. Here, an anode-electrolyte interfacial regulation strategy has been proposed inhibit acidification of enhance activity selectivity anodic reactions. As a proof concept, CeO

Language: Английский

Citations

21

Structural Regulation Strategies of Atomic Cobalt Catalysts for Oxygen Electrocatalysis DOI Open Access
Mengyu Chen, Jingqi Guan

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

Published: March 3, 2025

Abstract Oxygen electrocatalysis is a core reaction in renewable energy devices, greatly promoting the transformation and upgrading of structure. Nonetheless, performance conversion devices hindered by large overpotential slow kinetics oxygen electrocatalytic reactions. Recently, single‐atom catalysts (SACs) have emerged as promising contenders field because their exceptional metal atom utilization, distinctive coordination environment, adjustable electronic properties. This review presents latest advancements design Co‐based SACs for electrocatalysis. First, OER ORR mechanisms are introduced. Subsequently, strategies regulating structure summarized three aspects, including centers, support carriers. A particular emphasis given to relationship between properties catalysts. Afterward, applications explored. Ultimately, challenges prospects prospected.

Language: Английский

Citations

4

Efficient trifunctional electrocatalysts with iron single atoms electronically coupled with adjacent ruthenium nanoclusters for zinc-air battery-powered water splitting DOI
Xinjie Zhang, Yang Liu, Hongjie Dai

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: 368, P. 125127 - 125127

Published: Feb. 4, 2025

Language: Английский

Citations

3

Chemical reduction-induced defect-rich bismuth oxide-reduced graphene oxide anode for high-performance supercapacitors DOI
Tianle Wang, Cheng Chang,

Zefeng Guan

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 45 - 54

Published: July 27, 2024

Language: Английский

Citations

17

A novel DyCoO3@rGO nanocomposite electrode material for hybrid supercapacitor devices DOI
Zeinhom M. El‐Bahy, Najla AlMasoud, Mahmood Ali

et al.

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 178091 - 178091

Published: Dec. 1, 2024

Citations

16

Dual-ligand engineered CoNi alloy/N-doped carbon nanotubes bifunctional ORR/OER electrocatalyst for long-lifespan rechargeable Zn-air batteries DOI
Yue Du,

Zhiyi Zhong,

Zhixian Shi

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 683, P. 631 - 640

Published: Dec. 7, 2024

Language: Английский

Citations

8

Anode‐Electrolyte Interfacial Acidity Regulation Enhances Electrocatalytic Performances of Alcohol Oxidations DOI

Bingji Huang,

Jiabiao Yan,

Zhenhua Li

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(40)

Published: July 8, 2024

Abstract The local acidity at the anode surface during electrolysis is apparently stronger than that in bulk electrolyte due to deprotonation from reactant, which leads deteriorated electrocatalytic performances and product distributions. Here, an anode‐electrolyte interfacial regulation strategy has been proposed inhibit acidification of enhance activity selectivity anodic reactions. As a proof concept, CeO 2‐x Lewis acid component employed as supporter load Au nanoparticles accelerate diffusion enrichment OH − toward surface, so alcohol oxidation reaction. result, Au/CeO exhibits much enhanced lactic 81 % electrochemical 693 mA⋅cm −2 current density glycerol reaction compared pure Au. Mechanism investigation reveals introduced promotes mass transport concentration on thus promoting generation through simultaneous enhancements Faradaic non‐Faradaic processes. Attractively, can be used for electro‐oxidation performance variety alcohols, thereby provides new perspective efficient electro‐oxidations corresponding electrocatalyst design.

Language: Английский

Citations

7

Facile Synthesis of N‐Doped Porous Carbon Materials Derived from Bombyx Mori Silk for High‐Performance Symmetric Supercapacitors DOI Open Access
Lingyan Li,

Jingjing Wen,

Jiajing Liang

et al.

Chemistry - A European Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 12, 2025

Abstract Heteroatom doping and structural modification can significantly improve the electrochemical properties of carbon materials, but it is difficult to achieve synchronous control two. To this end, N‐doped porous material (BCNK) was synthesized using bombyx mori silk as source, melamine KHCO 3 activators. When only added, prepared (BCN) increases heteroatom content. (BCK) specific surface area pore volume. The microstructure heteratom content materials be controlled simultaneously by adding two activators at same time. Electrochemical tests show that performance BCNK higher than BCN BCK. It worth mentioning much lower BCK, indicating increasing more conducive achieving excellent area. This study not provides a new way for application in supercapacitors, also enables researchers re‐understand relationship between structure materials.

Language: Английский

Citations

1

Oriented Crystal Growth of Li0.33La0.557TiO3 Nanowire Induced by One-Dimensional Polymer Sheath toward Rapid Lithium-Ion Transfer DOI

Weijie Kou,

Junmei Zhang, Chenye Wang

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Superionic conductor-based solid-state electrolytes with preferred crystal structures hold great promise for realizing ultrafast lithium-ion (Li

Language: Английский

Citations

5

I3‐‐Mediated Oxygen Evolution Activities to Boost Rechargeable Zinc‐Air Battery Performance with Low Charging Voltage and Long Cycling Life DOI Open Access

Xiaohong Zou,

Qian Lü,

Lizhen Wu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

An effective strategy to facilitate oxygen redox chemistry in metal-air batteries is introduce a mediator into the liquid electrolyte. The rational utilization of mediators accelerate charging kinetics while ensuring long lifetime alkaline Zn-air challenging. Here, we apply commercial acetylene black catalysts achieve an I

Language: Английский

Citations

4