3D carbonaceous substrates synthesized from melamine sponges for energy storage: Influence of pyrolysis temperature in physicochemical and electrochemical properties

IF 2.6 4区 化学 Q3 ELECTROCHEMISTRY
Natalia Patricia Páez-Sánchez, E. Córdoba-Tuta, J. Vazquez-Samperio, P. Acevedo-Peña, E. Reguera
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引用次数: 0

Abstract

High-energy global requirements have caused a renewed interest in studying and developing new and improved energy storage devices and, precisely, the electrode materials that compose them, which play a fundamental role in determining the device’s performance. Carbon materials are first-class candidates due to their high electrical conductivity, chemical stability, and surface area. Although several carbon materials and their precursors have been studied, melamine sponges stand out for their nitrogen content, allowing them to act as a template and precursor for N-doped, ultralight carbon materials with good mechanical properties and a controlled pore size distribution. This work reports a simple and quick methodology to form ultralight and flexible carbon foam, along with the influence of the pyrolysis temperature on the physicochemical and electrochemical properties of 3D carbonaceous substrates used for energy storage and synthesized from melamine sponges. The substrates exhibit higher 3D porous structure than previously reported materials, with an average pore diameter of 80–90 µm. This morphology, added to the N content, promotes the remarkable electrochemical behavior (MS–950 °C) and cycling stability (MS–1000 °C) of almost 100% of capacitance retention after 10,000 cycles (≈ 60 F/g @1 A/g).

Abstract Image

由三聚氰胺海绵合成的三维碳质基底用于能量存储:热解温度对物理化学和电化学性质的影响
全球对高能量的需求再次激发了人们对研究和开发新型、改良型储能设备的兴趣,确切地说,是对设备性能起决定性作用的电极材料的兴趣。碳材料因其高导电性、化学稳定性和表面积而成为一流的候选材料。虽然已经对多种碳材料及其前驱体进行了研究,但三聚氰胺海绵因其含氮量高而脱颖而出,可作为掺氮超轻碳材料的模板和前驱体,具有良好的机械性能和可控的孔径分布。这项研究报告了一种形成超轻柔性泡沫碳材料的简单快速方法,以及热解温度对三聚氰胺海绵合成的用于储能的三维碳质基底的物理化学和电化学性质的影响。与之前报道的材料相比,这些基底呈现出更高的三维多孔结构,平均孔径为 80-90 微米。这种形态加上氮含量,促进了显著的电化学行为(MS-950 °C)和循环稳定性(MS-1000 °C),10000 次循环后电容保持率几乎达到 100%(≈ 60 F/g @1 A/g)。
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来源期刊
CiteScore
4.80
自引率
4.00%
发文量
227
审稿时长
4.1 months
期刊介绍: The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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