Tungsten oxide/reduced graphene oxide composite electrodes for solid-state asymmetric supercapacitor application

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2025-02-18 DOI:10.1007/s42114-025-01268-3

Sujata B. Patil, Ranjit P. Nikam, Vaibhav C. Lokhande, Chandrakant D. Lokhande, Raghunath S. Patil

{"title":"Tungsten oxide/reduced graphene oxide composite electrodes for solid-state asymmetric supercapacitor application","authors":"Sujata B. Patil, Ranjit P. Nikam, Vaibhav C. Lokhande, Chandrakant D. Lokhande, Raghunath S. Patil","doi":"10.1007/s42114-025-01268-3","DOIUrl":null,"url":null,"abstract":"<div>Tungsten oxide (WO3) thin films were deposited on flexible stainless steel (SS) substrates via low-cost chemical bath deposition (CBD) method by varying concentration of sodium tungstate precursor (0.05–0.2 M). Also, tungsten oxide/reduced graphene oxide (WO3/rGO) nanocomposite thin films were deposited (0.15 M sodium tungstate precursor concentration) at different rGO concentration variations (0.5, 1, and 1.5 mg mL−1). The effect of precursor concentration and rGO addition on the physicochemical properties of electrodes was studied. The thin films of WR2 (deposited at 0.15 M sodium tungstate and 1 mg mL−1 rGO concentration) nanocomposites exhibited a hexagonal crystal structure along with a surface morphology resembling nanorods. The appearance of rGO in WO3/rGO was proved from the FT-IR, RAMAN, and EDAX studies. WR2 nanocomposite thin film exhibited 1060 F g−1 specific capacitance at scan rate of 5 mV s−1. The flexible WR2//PVA-H2SO4//activated carbon asymmetric (ASC) device was fabricated using WR2 as a negative electrode and activated carbon as a positive electrode which showed a specific capacitance of 175 F g−1 with energy and power densities of 19.1 Wh kg−1 and 0.43 KW kg−1, respectively, with 81.3% capacitive retention over 5000 CV cycles.</div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 2","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42114-025-01268-3.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-025-01268-3","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}

引用次数: 0

Abstract

Tungsten oxide (WO₃) thin films were deposited on flexible stainless steel (SS) substrates via low-cost chemical bath deposition (CBD) method by varying concentration of sodium tungstate precursor (0.05–0.2 M). Also, tungsten oxide/reduced graphene oxide (WO₃/rGO) nanocomposite thin films were deposited (0.15 M sodium tungstate precursor concentration) at different rGO concentration variations (0.5, 1, and 1.5 mg mL⁻¹). The effect of precursor concentration and rGO addition on the physicochemical properties of electrodes was studied. The thin films of WR2 (deposited at 0.15 M sodium tungstate and 1 mg mL⁻¹ rGO concentration) nanocomposites exhibited a hexagonal crystal structure along with a surface morphology resembling nanorods. The appearance of rGO in WO₃/rGO was proved from the FT-IR, RAMAN, and EDAX studies. WR2 nanocomposite thin film exhibited 1060 F g⁻¹ specific capacitance at scan rate of 5 mV s⁻¹. The flexible WR2//PVA-H₂SO₄//activated carbon asymmetric (ASC) device was fabricated using WR2 as a negative electrode and activated carbon as a positive electrode which showed a specific capacitance of 175 F g⁻¹ with energy and power densities of 19.1 Wh kg⁻¹ and 0.43 KW kg⁻¹, respectively, with 81.3% capacitive retention over 5000 CV cycles.

查看原文本刊更多论文

用于固态非对称超级电容器的氧化钨/还原氧化石墨烯复合电极

在不同浓度的钨酸钠前驱体（0.05 ~ 0.2 M）下，采用低成本化学浴沉积法（CBD）在柔性不锈钢（SS）衬底上沉积氧化钨（WO3）薄膜，并在不同浓度的钨酸钠前驱体（0.5、1和1.5 mg mL−1）下（0.15 M）沉积氧化钨/还原氧化石墨烯（WO3/rGO）纳米复合薄膜。研究了前驱体浓度和还原氧化石墨烯添加量对电极理化性能的影响。在0.15 M钨酸钠和1 mg mL−1 rGO浓度下沉积的WR2纳米复合材料薄膜具有六方晶体结构，表面形貌类似纳米棒。通过FT-IR， RAMAN和EDAX研究证实了WO3/rGO中rGO的存在。在扫描速率为5 mV s−1时，WR2纳米复合薄膜的比电容为1060 F g−1。以WR2为负极，活性炭为正极制备了柔性WR2//PVA-H2SO4//活性炭不对称（ASC）器件，其比电容为175 F g−1，能量和功率密度分别为19.1 Wh kg−1和0.43 KW kg−1，在5000 CV循环中电容保持率为81.3%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.