Nucleophilic cleavage of C–F bonds by Brønsted base for rapid synthesis of fluorophosphate materials DOI Creative Commons
Qingfeng Fu,

Z. Chang,

Peng Gao

et al.

National Science Review, Journal Year: 2025, Volume and Issue: 12(3)

Published: Jan. 20, 2025

Fluorochemicals are a rapidly expanding class of materials used in variety fields including pharmaceuticals, metallurgy, agrochemicals, refrigerants, and particular, alkali metal ion batteries. However, achieving one-step synthesis pure fluorophosphate compounds well-controlled manner remains formidable challenge due to the volatilization fluorine during heat treatment process. One feasible method is cleave C-F bond polytetrafluoroethylene (PTFE) create fluorine-rich atmosphere strongly reducing environment. inert nature PTFE presents significant obstacle, as it strongest single organic compounds. To address this predicament, we propose fluorine-compensating strategy that involves cleavage bonds by nucleophilic SN2-type reactions Brønsted base (ammonia) enabling compensation. The decomposed products (NH2· C·) also result formation micropores (via NH3 escape) in-situ carbon coating C· polymerization). resultant cathode delivers superior potassium storage capability high rate performance capacity retention. This contribution not only overcomes obstacles associated with fluororesin, but represents step forward development fluorine-containing

Language: Английский

Recent Progress in Using Covalent Organic Frameworks to Stabilize Metal Anodes for Highly‐Efficient Rechargeable Batteries DOI Creative Commons
Jianlu Sun, Fangyuan Kang,

Dongbo Yan

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(28)

Published: May 7, 2024

Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high-energy-density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid-state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.

Language: Английский

Citations

41
Electrochemical Energy Storage Devices─Batteries, Supercapacitors, and Battery–Supercapacitor Hybrid Devices DOI
Lei Liu,

Xiyao Zhang,

Yanghe Liu

et al.

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Language: Английский

Citations

5
High‐Performance Mg–O2 Batteries Enabled by Electrospinning PVDF‐HFP‐Based Quasi‐Solid‐State Polymer Electrolyte DOI Open Access
Vasantan Rasupillai Dharmaraj, Dheeraj Kumar Maurya, Ayan Sarkar

et al.

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

Published: Feb. 5, 2025

Abstract This article reports a high‐performance rechargeable battery enabled by an electrospun quasi‐solid‐state electrolyte (E‐QSSE). The E‐QSSE, composed of Poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP), Mg(NO 3 ) 2 salt, and Pyr 14 TFSI ionic liquid (IL), exhibits high Mg 2+ ion transport interfacial stability. A unique sandwich structure coupling the E‐QSSE with Ruthenium nanoparticles decorated multi‐walled carbon nanotubes (Ru/CNT) cathode catalyst on paper significantly augments electrochemical reversibility. optimized 1:1 molar ratio salt IL achieves room temperature conductivity 6.39 mS cm −1 . E‐QSSE's stability window extends up to 3.95 V, showcasing its potential for high‐energy‐density applications. Mg‐O cell, delivers 115 discharge/charge cycles at 100 mA g , one longest reported cycle‐lives secondary batteries. maximum discharge capacity 9305 mAh 100% Coulombic efficiency. X‐ray photoelectron spectroscopy absorption near‐edge analyses reveal MgO as primary product, MgF contributing stable solid interphase. design promotes efficient migration reactions. work advances development stable, high‐capacity batteries can open avenues electrolytes in post‐lithium metal‐air technologies.

Language: Английский

Citations

2
Substitution–Leaching–Deposition (SLD) Processes Drive Reversible Surface Layer Reconstruction of Metal Oxides for Fluoride Adsorption DOI
Pengfei Shen, Xiaolin Zhang, Hui Xu

et al.

Environmental Science & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Surface complexation has long been recognized as the basic mode involved in fluoride adsorption onto metal oxides. However, such general recognition is challenged by unusual pH dependence observed adsorption. Here, we selected hydrated zirconium oxide (HZO) a representative to revisit mechanism. Multiple situ microscopic analyses and thermodynamic simulations suggest that, unlike of other anions that proceed exclusively via substituting protonated terminal hydroxyl (η-OH2+) groups oxides, can displace both η-OH2+ bridging (μ-OH+) HZO (i.e., Substitution). This distinctive displacement drives leaching Zr from HZO, generating aqueous polyfluorozirconium complexes Leaching) which subsequently deposit outer-sphere Deposition). The adsorbed gradually converts into fluorozirconate (Na5Zr2F13) coating, resulting surface layer reconstruction up 100 nm depth. atypical dependency be explained processes Substitution, Leaching, Deposition SLD processes). More attractively, SLD-driven reversible nature, ensuring constant defluoridation capability during cyclic adsorption-desorption assays. study advances our understanding at water-metal interfaces.

Language: Английский

Citations

2
Porous Organic Framework-Based Materials (MOFs, COFs and HOFs) for Lithium-/Sodium-/Potassium-/Zinc-/Aluminum-/Calcium-Ion Batteries: A Review DOI
Hui Zheng, Wei Yan, Jiujun Zhang

et al.

Electrochemical Energy Reviews, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 17, 2025

Language: Английский

Citations

2
Localized high concentration polymer electrolyte enabling room temperature solid-state lithium metal batteries with stable LiF-rich interphases DOI
Junjie Lu,

Bifu Sheng,

Minfeng Chen

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 71, P. 103570 - 103570

Published: June 15, 2024

Language: Английский

Citations

13
Recent Progress in Using Covalent Organic Frameworks to Stabilize Metal Anodes for Highly‐Efficient Rechargeable Batteries DOI Creative Commons
Jianlu Sun, Fangyuan Kang,

Dongbo Yan

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(28)

Published: May 7, 2024

Abstract Alkali metals (e.g. Li, Na, and K) multivalent Zn, Mg, Ca, Al) have become star anodes for developing high‐energy‐density rechargeable batteries due to their high theoretical capacity excellent conductivity. However, the inevitable dendrites unstable interfaces of metal pose challenges safety stability batteries. To address these issues, covalent organic frameworks (COFs), as emerging materials, been widely investigated regular porous structure, flexible molecular design, specific surface area. In this minireview, we summarize research progress COFs in stabilizing anodes. First, present origins delve into advantages based on physical/chemical properties alkali metals. Then, special attention has paid application host design anodes, artificial solid electrolyte interfaces, additives, solid‐state electrolytes, separator modifications. Finally, a new perspective is provided from pore modulation, synthesis COFs.

Language: Английский

Citations

10
Understanding and Design of Cathode–Electrolyte Interphase in High‐Voltage Lithium–Metal Batteries DOI

Wanxia Li,

Zixu He, Yulin Jie

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract The development of lithium–metal batteries (LMBs) has emerged as a mainstream approach for achieving high‐energy‐density energy storage devices. stability electrochemical interfaces plays an essential role in realizing stable and long‐life LMBs. Despite extensive comprehensive research on the lithium anode interface, there is limited focus cathode particularly regarding high‐voltage transition metal oxide materials. In this review, challenges associated with developing materials are first discussed. Characterization techniques understanding composition structure cathode–electrolyte interphase (CEI) then introduced. Subsequently, recent developments electrolyte design interface modification constructing CEI summarized. Finally, perspectives future trends This review can offer valuable guidance designing CEI, pushing forward

Language: Английский

Citations

10
Revisiting the interfacial chemistry of calcium metal anodes: the importance of inorganic-rich solid/electrolyte interfaces derived from an aggregation-dominated electrolyte DOI
Shu Yang, Xianshu Wang, Ruimin Li

et al.

Energy & Environmental Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The degradation of Ca anode in ester/ether electrolytes is attached to an organic-rich SEI. On this basis, we propose a desirable 2+ solvation sheath rich AGG and obtain inorganic-rich SEI, achieving high reversible plating/striping.

Language: Английский

Citations

2
What Do We Know About Per- or Polyfluoroalkyl Substances (PFASs)? Issues, Challenges, Regulations, and Possible Alternatives DOI Creative Commons
Bruno Améduri

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

Published: March 6, 2025

Per- or polyfluoroalkyl substances (PFASs) are man-made compounds involved in compositions of many industrial processes and consumer products. They categorized into two main families based on their molar mass: though low mass products (<1000 Da) toxic, mobile, bioaccumulable, cross the human membranes, others much higher masses, e.g., fluorinated macromolecules especially fluoropolymers, safe reliable, do not face such concerns, membranes (hence, they regarded as Polymers Low Concern), applications including medical high-value-added materials devices. Because former family has led to a severe global contamination, recent regulating agencies Europe (REACH) USA (EPA) have aimed at restricting fluorochemicals. Recently, consultations from affected organisms industries more than 5600 answers comments. This review supplies an update overall situation PFASs, limitations, regulations, end life, degradations, possible alternatives.

Language: Английский

Citations

2