Enhanced energy storage performance of samarium manganese iron oxide — reduced graphene oxide composites: A structural and electrochemical investigation

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2025-03-17 DOI:10.1016/j.diamond.2025.112219

Renu Dhahiya , Neetika Chauhan , Ashok Kumar

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引用次数: 0

Abstract

Supercapacitors are efficient energy storage systems that provide high power density and long cycle life. Recently, composite material-based supercapacitors have gained popularity as environmentally benign and effective energy-saving solutions. In this study, the microstructural and electrochemical properties of pristine Sm₂MnFeO₆ (SMFO) and reduced graphene oxide (rGO) composite Sm₂MnFeO₆/rGO (SMFO/rGO) are explored. Structural characterization provides insights into the lattice parameters of SMFO and SMFO/rGO material, while morphological analysis highlights the presence of agglomerated crystallites in both materials. Surface area measurements indicate an increase in porosity upon rGO incorporation, and elemental analysis confirms the oxidation states of the constituent elements in SMFO and the SMFO/rGO composite. Electrochemical investigations demonstrate the impact of rGO on charge storage capabilities, offering valuable insights into the potential of SMFO/rGO as an efficient electrode material for supercapacitor applications. The specific capacitance of SMFO/rGO improved by ∼155 % (505.3 Fg⁻¹) compared to SMFO (197.8 Fg⁻¹) at a current density 5 mVs⁻¹.

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.