Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Intrinsic structural and oxidic defects activate graphitic carbon electrodes towards electrochemical reactions underpinning energy conversion and storage technologies. Yet, these defects can also disrupt the long-range and periodic arrangement of carbon atoms, thus, the characterization of graphitic carbon electrodes necessitates in-situ atomistic differentiation of graphitic regions from mesoscopic bulk disorder. Here, we leverage the combined techniques of in-situ attenuated total reflectance infrared spectroscopy and first-principles calculations to reveal that graphitic carbon electrodes exhibit electric-field dependent infrared activity that is sensitive to the bulk mesoscopic intrinsic disorder. With this platform, we identify graphitic regions from amorphous domains by discovering that they demonstrate opposing electric-field-dependent infrared activity under electrochemical conditions. Our work provides a roadmap for identifying mesoscopic disorder in bulk carbon materials under potential bias.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11848973 | PMC |
| http://dx.doi.org/10.1002/anie.202420680 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Lithium Metal Ingrowth Toward a Porous Structure via Coble Creep along Lithium-Carbon Interface Without Ionic Conductors.
Small
September 2025
School of Energy and Chemical Engineering, UNIST, Ulsan, 44919, South Korea.
All-solid-state batteries (ASSBs), equipped with highly ion-conductive sulfide solid electrolytes and utilizing lithium plating/stripping as anode electrochemistry, suffer from 1) chemical vulnerability of the electrolytes with lithium and 2) physical growth of lithium to penetrate the electrolytes. By employing an ordered mesoporous graphitic carbon (OMGC) framework between a sulfide electrolyte layer and a copper current collector in ASSB, the concerns by are addressed 1) minimizing the chemically vulnerable interface (CVI) between electric conductor and solid electrolyte, and 2) allowing lithium ingrowth toward the porous structure via Coble creep, a diffusional deformation mechanism of lithium metal along the lithium-carbon interface. The void volume of the framework is fully filled with lithium metal, despite ionic pathways not being provided separately, even without additional lithiophiles, when an enough amount of lithium is allowed to be plated.
View Article and Find Full Text PDFInhibiting Graphite Co-Intercalation through Weak Solvating Ether Electrolytes for Stable Cycling in Potassium-Ion Batteries.
J Phys Chem Lett
September 2025
Faculty of Material Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
Ether-based electrolytes are widely acknowledged for their potential to form stable solid electrolyte interfaces (SEIs) for stable anode performance. However, conventional ether-based electrolytes have shown a tendency for cation-solvent co-intercalation phenomena on graphite electrodes, resulting in lower capacity and higher voltage platforms compared to those of neat cation insertion in ester-based electrolytes. In response, we propose the development of weakly solvating ether solvents to weaken the interaction between cations and solvents, thereby suppressing co-intercalation behavior.
View Article and Find Full Text PDFDual-synergistic molybdenum disulfide and molybdenum carbide cocatalyst integrated with graphitic carbon nitride for efficient photocatalytic hydrogen production.
J Colloid Interface Sci
September 2025
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, PR China. Electronic address:
Heterojunctions have garnered significant attention in the field of photocatalysis due to their exceptional ability to facilitate the separation of photogenerated charge carriers and their high efficiency in hydrogen reaction. However, their overall photocatalytic performance is often constrained by electron transport rates and suboptimal hydrogen adsorption/desorption kinetics. To address these challenges, this study develops a g-CN/MoS@MoC dual-effect synergistic solid-state Z-type heterojunction, synthesized through the in-situ sulfurization of MoC combined with ultrasonic self-assembly technique.
View Article and Find Full Text PDFBoosting Sodium Storage in Hard Carbon: A Low-Temperature Ball Milling Approach for Superior Anode Performance.
Langmuir
September 2025
College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, PR China.
Hard carbon (HC) has emerged as a promising anode material for sodium-ion batteries (SIBs) owing to its superior sodium storage performance. However, the high cost of conventional HC precursors remains a critical challenge. To address this, coal─a low-cost, carbon-rich precursor─has been explored for HC synthesis.
View Article and Find Full Text PDFBiphenylite with an Ultrahigh Capacity of Hexafluorophosphate Anions as a Promising Electrode Material in Dual-Ion Batteries.
ACS Appl Mater Interfaces
September 2025
Anhui Province Key Laboratory for Control and Applications of Optoelectronic Information Materials, Key Laboratory of Functional Molecular Solids Ministry of Education, and Department of Physics, Anhui Normal University, Wuhu, Anhui 241000, China.
Dual-ion batteries (such as alkali metal ion-hexafluorophosphate anion systems) have demonstrated an excellent performance; however, identifying suitable cathode materials with superior electrochemical properties remains a major challenge impeding their advancement. In this work, the feasibility of biphenylite as a dual-ion battery cathode material is investigated systematically by first-principles calculations. The calculated result indicates that biphenylite has an ultrahigh cathode specific capacity for PF anions (107.
View Article and Find Full Text PDF