Multifunctional Amphoteric Additive Alanine Enables High‐Performance Wide‐pH Zn Metal Anodes DOI

Yanwei Feng,

Y.F. Yuan, Gaoshen Cai

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Interfacial pH fluctuation is one of the primary reasons for issues related to Zn metal anodes. Herein, polar amphoteric alanine, as a multifunctional electrolyte additive, designed regulate electric double layer (EDL) and solvation structure. Alanine with self-adaptation capability can stabilize pH. Due more negative adsorption energy, alanine preferentially adsorbs on surface repels water molecules within EDL. Alanine-enriched EDL effectively shields tips, homogenizes interfacial field distribution, promotes preferential deposition horizontal flaky Zn. limits contact between anode. additive decreases quantity in

Language: Английский

Positively Charged Amino Acid-Modulated Interfacial Chemistry and Deposition Textures for Highly Reversible Zinc Anodes DOI
Chang Li, Yang Song, Ning Gao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(19), P. 24612 - 24623

Published: May 6, 2024

Interfacial active water molecule-induced parasitic reactions and stochastic Zn2+ transport-caused dendrite issue significantly impede the implementation of aqueous Zn-ion batteries. Herein, three positively charged amino acids, namely arginine, histidine, lysine, were utilized as adsorption-type electrolyte additives to enhance stability reversibility Zn anodes. Combined theoretical experimental analyses verified that these acid cations can synergistically modulate interfacial microenvironment promote orientational deposition. The adsorbed reconfigured electric double layer structure, forming SO42–- H2O-poor interfaces, thereby retarding hydrogen evolution corrosion side reactions. Simultaneously, preferential adsorption at specific facets induced crystallographic deposition along unterminated facets. Three architectures, planar texture, subvertical alignment, vertical erection, obtained, all effectively inhibiting formation. Consequently, symmetric cells with exhibited high stripping/plating over 2000 cycles 5 mA cm–2. Moreover, MnO2-based full markedly improved stabilities compared their additive-free counterparts.

Language: Английский

Citations

1

Reduced Graphene Oxide-Supported SrV4O9 Microflowers with Enhanced Electrochemical Performance for Sodium-Ion Batteries DOI Creative Commons
Guangming Li, Yifan Li, Yi Zhang

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(11), P. 2704 - 2704

Published: June 6, 2024

Sodium-ion batteries (SIBs) have received considerable attention in recent years. Anode material is one of the key factors that determine SIBs’ electrochemical performance. Current commercial hard carbon anode shows poor rate performance, which greatly limits applications SIBs. In this study, a novel vanadium-based material, SrV4O9, was proposed as an for SIBs, and its Na+ storage properties were studied first time. To enhance electrical conductivity SrV4O9 microflower structure designed reduced graphene oxide (rGO) introduced host to support microflowers. The effectively electron diffusion distance, thus enhancing material. rGO showed excellent flexibility conductivity, improved cycling life performance composite As result, SrV4O9@rGO (a stable capacity 273.4 mAh g−1 after 200 cycles at 0.2 A high 120.4 10.0 g−1), indicating can be ideal

Language: Английский

Citations

0

Nickle-doped covalent organic frameworks/carbon nanotubes composite for high-performance lithium-sulfur batteries DOI
Yafeng Zhang, Shubo Liu, Junkai Wang

et al.

Materials Letters, Journal Year: 2024, Volume and Issue: 377, P. 137333 - 137333

Published: Sept. 2, 2024

Language: Английский

Citations

0

The Construction of Newton's Cradle Type Ions Jumping Path between Layered Double Hydroxide Interlayer for High-Performance Alkaline Zinc Batteries DOI

Liuxu Wei,

Shiyu Gu,

Yuhao Duan

et al.

Published: Jan. 1, 2024

Language: Английский

Citations

0

Multifunctional Amphoteric Additive Alanine Enables High‐Performance Wide‐pH Zn Metal Anodes DOI

Yanwei Feng,

Y.F. Yuan, Gaoshen Cai

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Interfacial pH fluctuation is one of the primary reasons for issues related to Zn metal anodes. Herein, polar amphoteric alanine, as a multifunctional electrolyte additive, designed regulate electric double layer (EDL) and solvation structure. Alanine with self-adaptation capability can stabilize pH. Due more negative adsorption energy, alanine preferentially adsorbs on surface repels water molecules within EDL. Alanine-enriched EDL effectively shields tips, homogenizes interfacial field distribution, promotes preferential deposition horizontal flaky Zn. limits contact between anode. additive decreases quantity in

Language: Английский

Citations

0