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Kizhepat S, Rasal AS, Chodankar NR, Demissie GG, Dwivedi KA, Dirersa WB, Chiang CY, Chang JY. Optimizing Energy Solutions: Mott-Schottky Engineered 1D/3D CoWO 4(OH) 2·H 2O/MoS 2 Heterostructure for Advanced Energy Storage and Conversion Application. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404954. [PMID: 39314023 DOI: 10.1002/smll.202404954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 09/13/2024] [Indexed: 09/25/2024]
Abstract
Heterostructure engineering offers a powerful approach to creating innovative electrocatalysts. By combining different materials, it can achieve synergistic effects that enhance both charge storage and electrocatalytic activity. In this work, it is capitalized on this concept by designing a 1D/3D CoWO4(OH)2·H2O/molybdenum disulfide (CTH/MoS2) heterostructure. It is achieved this by in situ depositing 3D MoS2 nanoflowers on 1D CTH nanorods. To explore the impact of precursor choice, various sulfur (S) sources is investigated. Interestingly, the S precursor influenced the dimensionality of the MoS2 component. For example, L-cysteine (L-cys), and glutathione (GSH) resulted in 0D morphologies, thiourea (TU) led to a 2D structure, and thioacetamide (TAA) yielded a desirable 3D architecture. Notably, the 1D/3D CTH/MoS2-TAA heterostructure exhibited exceptional performance in both supercapacitors (SCs) and quantum dot-sensitized solar cells (QDSSCs). This achievement can be attributed to several factors: the synergetic effect between 1D CTH and 3D MoS2, improved accessibility due to the multi-dimensional structure, and a tailored electronic structure facilitated by the Mott-Schottky (M-S) interaction arising from the different material Fermi levels. This interaction further enhances conductivity, ultimately leading to the observed high specific capacity in SCs (154.44 mAh g-1 at 3 mA cm-2) and remarkable photovoltaic efficiency in QDSSCs (6.48%).
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Affiliation(s)
- Shamsa Kizhepat
- Nano Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Akash S Rasal
- Nano Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Nilesh R Chodankar
- Department of Mechanical Engineering, Khalifa University of Science and Technology, PO Box 127788, Abu Dhabi, UAE
| | - Girum Getachew Demissie
- Nano Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Kavya Arun Dwivedi
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, 10617, Taiwan
| | - Worku Batu Dirersa
- Nano Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Chia-Ying Chiang
- Sustainable Engineering Lab., Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
| | - Jia-Yaw Chang
- Nano Chemistry Lab, Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, 106335, Taiwan
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Yu HH, Lin CH, Yu JJ, Kuo WK, Lee HF. Agricultural and industrial wastes applied on the high performance energy storage devices. Heliyon 2024; 10:e31220. [PMID: 38803855 PMCID: PMC11128906 DOI: 10.1016/j.heliyon.2024.e31220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/24/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Driven by population growth, the destruction of the environment and the energy demand continue to increase dramatically. This study uses garlic skin and carbon fiber from agricultural and industrial wastes to prepare energy storage devices. Carbon quantum dots (CQDs) were obtained from garlic skin using high-temperature pyrolysis. The specific capacitance of the gel electrolyte could be effectively increased with a small number of CQDs doping. A methylcellulose-based carbon fiber-electrode was prepared by grinding and depositing the industrial recycled carbon fiber onto a biodegradable methylcellulose substrate. The methylcellulose-based recycled carbon fiber-electrode has the highest specific capacitance, energy density, and power density, which are 155 F/g, 10 Wh/kg, and 4047 W/kg, respectively, at a scan rate of 0.02 V/s, and demonstrates excellent performance, such like high specific capacitance, low internal resistance as well as rapid charge and discharge characteristics, which may have potential to replace the expensive carbon nanotubes and graphenes. The electrodes were made from recycled carbon fiber, the gel electrolyte with garlic CQDs, and a separator assembled into a sandwich structure to form supercapacitors. The capacity retention rate of the supercapacitor still retained 96 % of its initial value after 2000 cycles of charge and discharge testing at a constant current of 0.20 mA. This demonstrates the supercapacitor prepared in this study with competitive power density, energy density, high rate capability, and excellent life cycle stability by combining the garlic skin and carbon fiber from agricultural and industrial wastes, highlighting the enormous potential of agricultural and industrial wastes for energy storage applications.
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Affiliation(s)
- Hsin Her Yu
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Chia-Hua Lin
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Jau-Jhong Yu
- Graduate Institute of Electro-Optical and Materials Science, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Wen-Kai Kuo
- Graduate Institute of Electro-Optical and Materials Science, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
| | - Hsu-Feng Lee
- Department of Biotechnology, National Formosa University, 64 Wenhua Road, Huwei, Yunlin, 63208, Taiwan
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Xu W, Zhu W, Shen J, Kuai M, Zhang Y, Huang W, Yang W, Li M, Yang S. Stepwise rapid electrolytic synthesis of graphene oxide for efficient adsorption of organic pollutants. NANOSCALE 2023; 15:5919-5926. [PMID: 36876907 DOI: 10.1039/d2nr06617c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Graphene oxide (GO) has been widely used in energy devices, biomedicine, environmental protection, composite materials and other fields. Hummers' method is currently one of the most powerful strategies for the preparation of GO. However, many deficiencies, including severe environmental pollution, operation safety issues and low oxidation efficiency are major obstacles for the large-scale green synthesis of GO. Here, we report a stepwise electrochemical method for the fast preparation of GO using spontaneous persulfate intercalation followed by anodic electrolytic oxidation. Such a step-by-step process not only avoids uneven intercalation and insufficient oxidation in traditional one-pot methods, but also largely shortens the overall duration by two orders of magnitude. In particular, the oxygen content of the obtained GO is as high as 33.7 at%, almost double that from Hummers' method (17.4 at%). The abundant surface functional groups render this GO an excellent adsorption platform for methylene blue with an adsorption capacity of 358 mg g-1, 1.8-fold higher than conventional GO.
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Affiliation(s)
- Wanzhen Xu
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenjie Zhu
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junliang Shen
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Mingyue Kuai
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Yi Zhang
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Weihong Huang
- School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Wenming Yang
- School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Mengmeng Li
- Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Sheng Yang
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
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Boateng E, Thiruppathi AR, Hung CK, Chow D, Sridhar D, Chen A. Functionalization of Graphene-based Nanomaterials for Energy and Hydrogen Storage. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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Hossain SKS, Dey B, Ali SS, Choudhury A. Fabrication of Flexible Poly( m-aminophenol)/Vanadium Pentoxide/Graphene Ternary Nanocomposite Film as a Positive Electrode for Solid-State Asymmetric Supercapacitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:642. [PMID: 36839010 PMCID: PMC9962591 DOI: 10.3390/nano13040642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
In this study, poly(m-aminophenol) (PmAP) has been investigated as a multi-functional conductive supercapacitor binder to replace the conventional non-conductive binder, namely, poly(vinylene difluoride) (PVDF). The kye benefits of using PmAP are that it is easily soluble in common organic solvent and has good film-forming properties, and also its chemical functionalities can be involved in pseudocapacitive reactions to boost the capacitance performance of the electrode. A new ternary nanocomposite film based on vanadium pentoxide (V2O5), amino-functionalized graphene (amino-FG) and PmAP was fabricated via hydrothermal growth of V2O5 nanoparticles on graphene surfaces and then blending with PmAP/DMSO and solution casting. The electrochemical performances of V2O5/amino-FG/PmAP nanocomposite were evaluated in two different electrolytes, such as KCl and Li2SO4, and compared with those of V2O5/amino-FG nanocomposite with PVDF binder. The cyclic voltametric (CV) results of the V2O5/amino-FG/PmAP nanocomposite exhibited strong pseudocapacitive responses from the V2O5 and PmAP phases, while the faradaic redox reactions on the V2O5/amino-FG/PVDF electrode were suppressed by the inferior conductivity of the PVDF. The V2O5/amino-FG/PmAP electrode delivered a 5-fold greater specific capacitance than the V2O5/amino-FG/PVDF electrode. Solid-state asymmetric supercapacitors (ASCs) were assembled with V2O5/amino-FG/PmAP film as a positive electrode, and their electrochemical properties were examined in both KCl and Li2SO4 electrolytes. Although the KCl electrolyte-based ASC has greater specific capacitance, the Li2SO4 electrolyte-based ASC delivers a higher energy density of 51.6 Wh/kg and superior cycling stability.
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Affiliation(s)
- SK Safdar Hossain
- Department of Chemical Engineering, College of Engineering, King Faisal University, P.O. Box 380, Al-Ahsa 31982, Saudi Arabia
| | - Baban Dey
- Department of Chemical Engineering, Birla Institute of Technology, Ranchi 835215, India
| | - Syed Sadiq Ali
- Department of Chemical Engineering, College of Engineering, King Faisal University, P.O. Box 380, Al-Ahsa 31982, Saudi Arabia
| | - Arup Choudhury
- Department of Chemical Engineering, Birla Institute of Technology, Ranchi 835215, India
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Ho HY, Chu HI, Huang YJ, Tsai DS, Lee CP. Polypyrrole-coated copper@graphene core-shell nanoparticles for supercapacitor application. NANOTECHNOLOGY 2023; 34:125401. [PMID: 36542854 DOI: 10.1088/1361-6528/acad87] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The performance of supercapacitors strongly depends on the electrochemical characterizations of electrode materials. Herein, a composite material consisted of polypyrrole (PPy) and multilayer graphene-wrapped copper nanoparticles (PPy/MLG-Cu NPs) is fabricated on a flexible carbon cloth (CC) substrate via two-step synthesis process for supercapacitor application. Where, MLG-Cu NPs are prepared on CC by one-step chemical vapor deposition synthesis approach; thereafter, the PPy is further deposited on the MLG-Cu NPs/CC via electropolymerization. The related material characterizations of PPy/MLG-Cu NPs are well investigated by scanning electron microscopic, high resolution transmission electron microscopy, Raman spectrometer and x-ray photoelectron spectroscopy; the electrochemical behaviors of the pertinent electrodes are studied by cyclic voltammogram, galvanostatic charge/discharge and electrochemical impedance spectroscopy measurements. The flexible electrode with PPy/MLG-Cu NPs composites exhibits the best specific capacitance of 845.38 F g-1at 1 A g-1, which is much higher than those of electrodes with PPy (214.30 F g-1), MLG-Cu NPs (6.34 F g-1), multilayer graphene hollow balls (MLGHBs; 52.72 F g-1), and PPy/MLGHBs (237.84 F g-1). Finally, a supercapacitor system consisted of four PPy/MLG-Cu NPs/CC electrodes can efficiently power various light-emitting diodes (i.e. red, yellow, green and blue lighs), demonstrating the practical application of PPy/MLG-Cu NPs/CC electrode.
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Affiliation(s)
- Hsiao-Yun Ho
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Hsuan-I Chu
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
| | - Yi-June Huang
- Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, United States of America
| | - Dung-Sheng Tsai
- Department of Electronic Engineering, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chuan-Pei Lee
- Department of Applied Physics and Chemistry, University of Taipei, Taipei 10048, Taiwan
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Spray-deposited cobalt-doped RuO2 electrodes for high-performance supercapacitors. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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