3D hierarchically porous carbon derived from asphalt via salt template strategy for high-performance aqueous zinc-sulfur batteries

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-15 DOI:10.1016/j.matlet.2025.138406

Tongtong Zheng , Zhiman Bai , Kun Tang , Mingzai Wu

引用次数: 0

Abstract

Conductive carbon materials have great potential as sulfur host for zinc-sulfur batteries, and their microstructures have a significant impact on the electrochemical activity. Herein, conductive carbon materials with different microstructures were synthesized from asphalt through a two-step annealing procedure using potassium citrate and sodium chloride as the templates. Among these materials, three-dimensional hierarchically porous carbon (3DPC) offers superior ionic and electronic conductivity for zinc-sulfur batteries due to its unique microstructure. The zinc-sulfur battery using S@3DPC as the cathode exhibits lower polarization (1.13 V) and excellent rate performance (582.2mAh g⁻¹ at 5.0 A g⁻¹). A high discharged capacity of 322.4mAh g⁻¹ can still be maintained even after 500 cycles at 5 A g⁻¹.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive