In-situ iron modified mesoporous silica MCM-48 for electrochemical energy storage applications

被引：2

作者：

Kalita, Arnab ^{[1
]}

Kashyap, Trishanku ^{[2
]}

Saikia, Pranjal ^{[2
]}

Talukdar, Anup Kumar ^{[1
]}

机构：

[1] Gauhati Univ, Dept Chem, Gauhati 781014, Assam, India

[2] Gauhati Univ, Dept Appl Sci, Chem Sci Div, Gauhati 781014, Assam, India

来源：

JOURNAL OF POROUS MATERIALS | 2024年 / 31卷 / 06期

关键词：

MCM-48; Specific capacitance; Cyclic voltammetry; Chronopotentiometry; REDUCED GRAPHENE OXIDE; HOLLOW SPHERES; PERFORMANCE SUPERCAPACITOR; SELECTIVE OXIDATION; MOLECULAR-SIEVES; PORE-SIZE; CARBON; ELECTRODES; NANOSTRUCTURES; NANOPARTICLES;

D O I：

10.1007/s10934-024-01657-x

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Electrochemical energy technologies are crucial for a sustainable future, promising to transform energy generation, storage and use with improved efficiency and environmental responsibility. In this study, Fe was integrated into the MCM-48 framework to create a modified mesoporous structure to be used as electrodes for electrochemical storage applications. The materials were thoroughly characterized using various spectroscopic and non-spectroscopic techniques, including XRD, XPS, UV-Vis (DRS), FT-IR, N2 adsorption-desorption analysis, SEM with EDX, ICP-OES, TEM, TGA and DSC. Cyclic voltammetry and galvanometric charge-discharge studies revealed that the Fe-MCM-48 sample with Si: Fe molar ratio of 20 (Fe-MCM-48 (20)) exhibited pseudocapacitive behaviour, showcasing higher capacitance value of up to 787 F g- 1 at a current density of 1 A g- 1. The findings undeniably indicate that Fe-MCM-48 (20) holds promise as a highly effective electrode material for advancing energy storage technologies like supercapacitors.

引用

页码：2067 / 2082

页数：16

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