Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte
The great interest in developing emerging zinc-ion capacitors (ZIC) for energy storage applications is due to their inexpensiveness and the future necessity for hybrid electrical energy storage devices. The Zn-ion hybrid capacitor device was assembled using boron (B)-doped reduced graphene oxide (B-...
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MDPI AG
2023-06-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/11/7/280 |
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| author | Vediyappan Thirumal Palanisamy Rajkumar Kisoo Yoo Jinho Kim |
| author_facet | Vediyappan Thirumal Palanisamy Rajkumar Kisoo Yoo Jinho Kim |
| author_sort | Vediyappan Thirumal |
| collection | DOAJ |
| description | The great interest in developing emerging zinc-ion capacitors (ZIC) for energy storage applications is due to their inexpensiveness and the future necessity for hybrid electrical energy storage devices. The Zn-ion hybrid capacitor device was assembled using boron (B)-doped reduced graphene oxide (B-RGO) material, which acts as the cathode, and pure zinc metal as an anode. This research work aims to study the influence of B-doped reduced graphene oxide (B-RGO) with Aloe vera gel as an electrolyte. The reduced graphene oxide (RGO) and B-RGO electrode active materials were confirmed through X-ray diffraction (XRD), RAMAN, Fourier transformation infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM) and field emission-transmission electron microscopy (FE-TEM) analysis. The surface morphological images reveal that a few-layered nanostructure B-RGO was used in the Zn-ion hybrid capacitor device. The electrochemical performance of the Zn-ion hybrid capacitor was evaluated through cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) measurements, with a wide active potential range of 0–2 V versus Zn/Zn<sup>+</sup>. The mixture composition of Aloe vera extract and 1M ZnSO<sub>4</sub> electrolyte generated a stable voltage and exhibited good capacitive behavior. The fabricated ZIC coin cell device with the Aloe vera gel semi-gel electrolyte containing ZnSO<sub>4</sub> demonstrated improved Zn<sup>+</sup> ionic exchange and storage efficiency. Moreover, the B-RGO electrode active material exhibited excellent cycle stability. The simple one-step electrochemical technique is the most suitable process for boron doping into graphene nanosheets for future energy storage applications. |
| first_indexed | 2024-03-11T00:59:03Z |
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| language | English |
| last_indexed | 2024-03-11T00:59:03Z |
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| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-c05f6722faea4779ba18ef0302b023752023-11-18T19:47:51ZengMDPI AGInorganics2304-67402023-06-0111728010.3390/inorganics11070280Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel ElectrolyteVediyappan Thirumal0Palanisamy Rajkumar1Kisoo Yoo2Jinho Kim3Department of Mechanical Engineering, Yeungnam University, Gyeongsan-si 712-749, Gyeongbuk, Republic of KoreaDepartment of Mechanical Engineering, Yeungnam University, Gyeongsan-si 712-749, Gyeongbuk, Republic of KoreaDepartment of Mechanical Engineering, Yeungnam University, Gyeongsan-si 712-749, Gyeongbuk, Republic of KoreaDepartment of Mechanical Engineering, Yeungnam University, Gyeongsan-si 712-749, Gyeongbuk, Republic of KoreaThe great interest in developing emerging zinc-ion capacitors (ZIC) for energy storage applications is due to their inexpensiveness and the future necessity for hybrid electrical energy storage devices. The Zn-ion hybrid capacitor device was assembled using boron (B)-doped reduced graphene oxide (B-RGO) material, which acts as the cathode, and pure zinc metal as an anode. This research work aims to study the influence of B-doped reduced graphene oxide (B-RGO) with Aloe vera gel as an electrolyte. The reduced graphene oxide (RGO) and B-RGO electrode active materials were confirmed through X-ray diffraction (XRD), RAMAN, Fourier transformation infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM) and field emission-transmission electron microscopy (FE-TEM) analysis. The surface morphological images reveal that a few-layered nanostructure B-RGO was used in the Zn-ion hybrid capacitor device. The electrochemical performance of the Zn-ion hybrid capacitor was evaluated through cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) measurements, with a wide active potential range of 0–2 V versus Zn/Zn<sup>+</sup>. The mixture composition of Aloe vera extract and 1M ZnSO<sub>4</sub> electrolyte generated a stable voltage and exhibited good capacitive behavior. The fabricated ZIC coin cell device with the Aloe vera gel semi-gel electrolyte containing ZnSO<sub>4</sub> demonstrated improved Zn<sup>+</sup> ionic exchange and storage efficiency. Moreover, the B-RGO electrode active material exhibited excellent cycle stability. The simple one-step electrochemical technique is the most suitable process for boron doping into graphene nanosheets for future energy storage applications.https://www.mdpi.com/2304-6740/11/7/280zinc-ion capacitorAloe veragel electrolyteheteroatomgraphene |
| spellingShingle | Vediyappan Thirumal Palanisamy Rajkumar Kisoo Yoo Jinho Kim Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte Inorganics zinc-ion capacitor Aloe vera gel electrolyte heteroatom graphene |
| title | Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte |
| title_full | Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte |
| title_fullStr | Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte |
| title_full_unstemmed | Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte |
| title_short | Hydrothermal Synthesis of Boron-Doped Graphene for High-Performance Zinc-Ion Hybrid Capacitor Using Aloe Vera Gel Electrolyte |
| title_sort | hydrothermal synthesis of boron doped graphene for high performance zinc ion hybrid capacitor using aloe vera gel electrolyte |
| topic | zinc-ion capacitor Aloe vera gel electrolyte heteroatom graphene |
| url | https://www.mdpi.com/2304-6740/11/7/280 |
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