Sm掺杂对BaMnO3钙钛矿在超级电容器中的电化学增强作用

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-05-01 DOI:10.1016/j.ceramint.2025.01.569

Meznah.M. Alanazi , Shaimaa A.M. Abdelmohsen , Lana.M. Sulayem , Salma Aman , Hafiz.Muhammad.Tahir Farid , Muhammad.Suleman Waheed

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引用次数: 0

摘要

超级电容器领域需要创造具有更高化学活性表面、更短离子扩散路线和更快离子/电荷传输动力学的金属氧化物。利用金属掺杂可以有效地克服过渡金属氧化物（TMOs）的问题，同时增加了表面面积（SA），加速了离子迁移和提高了稳定性。采用水热法制备了sm掺杂BaMnO3电极材料和原始BaMnO3。利用各种分析仪器测定了所制电极样品的物理和电化学性能。由恒流充放电图确定的sm掺杂BaMnO3电极材料在1 a /g时的比电容（Cs）为1136 F/g。Nyquist曲线显示，sm掺杂BaMnO3电极材料的电荷转移电阻降低（Rct = 0.56 Ω）。sm掺杂BaMnO3电极材料表现出更好的电化学特性，使其成为包含在超级电容器器件中的合适选择。

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Electrochemical enhancement of BaMnO3 perovskites using Sm doping for supercapacitor applications

The creation of metal oxide with increased chemically active surfaces, shorter ion-diffusion routes, and quicker ion/charge transport kinetics is required in the field of supercapacitors. The problem of transition metal oxides (TMO_s) has been effectively overcome by utilizing metal doping which simultaneously increases surface area (SA), speeds up ion migration and improves stability. Sm-doped BaMnO₃ electrode material and pristine BaMnO₃ was created hydrothermally for supercapacitor devices. The physical and electrochemical properties of the produced electrode sample were determined by utilizing various analytical instruments. The Sm-doped BaMnO₃ electrode material has a specific capacitance (C_s) of 1136 F/g at 1 A/g determined by the galvanostatic charging/discharging plot. The Nyquist curve shows that Sm-doped BaMnO₃ electrode material has a reduced charge transfer resistance (R_ct = 0.56 Ω). The Sm-doped BaMnO₃ electrode material demonstrated better electrochemical characteristics making it a suitable option for inclusion into supercapacitor devices.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.