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Fu H, Chen Z, Chen X, Jing F, Yu H, Chen D, Yu B, Hu YH, Jin Y. Modification Strategies for Development of 2D Material-Based Electrocatalysts for Alcohol Oxidation Reaction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2306132. [PMID: 38044296 DOI: 10.1002/advs.202306132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/01/2023] [Indexed: 12/05/2023]
Abstract
2D materials, such as graphene, MXenes (metal carbides and nitrides), graphdiyne (GDY), layered double hydroxides, and black phosphorus, are widely used as electrocatalyst supports for alcohol oxidation reactions (AORs) owing to their large surface area and unique 2D charge transport channels. Furthermore, the development of highly efficient electrocatalysts for AORs via tuning the structure of 2D support materials has recently become a hot area. This article provides a critical review on modification strategies to develop 2D material-based electrocatalysts for AOR. First, the principles and influencing factors of electrocatalytic oxidation of alcohols (such as methanol and ethanol) are introduced. Second, surface molecular functionalization, heteroatom doping, and composite hybridization are deeply discussed as the modification strategies to improve 2D material catalyst supports for AORs. Finally, the challenges and perspectives of 2D material-based electrocatalysts for AORs are outlined. This review will promote further efforts in the development of electrocatalysts for AORs.
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Affiliation(s)
- Haichang Fu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Zhangxin Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Xiaohe Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Fan Jing
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Hua Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Dan Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Binbin Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, MI, 49931, USA
| | - Yanxian Jin
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang, Zhejiang, 318000, China
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Rajeeve AD, Yamuna R, Vinoba M, Bhagiyalakshmi M. β-Cyclodextrin-Stabilized CuO/MXene Nanocomposite as an Electrode Material for High-Performance Supercapacitors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 38014812 DOI: 10.1021/acs.langmuir.3c02140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Supercapacitors are the best energy storage systems due to their high power density, quick charge/discharge rate, and long-term reliability. In this study, β-cyclodextrin-stabilized CuO nanoparticles (CuO@βCD NPs) were synthesized through a simple reduction method and anchored on the surface of MXene nanosheets in three different proportions (1:1, 4:1, and 1:4) to obtain CuO@βCD/MXene nanocomposites through the wet-impregnation method. The formation of CuO@βCD NPs and their physicochemical characteristics were verified by XRD, XPS, FE-SEM, and HR-TEM analysis. The actual focus is on the evaluation of the electrochemical performances of CuO@βCD, MXene, and CuO@βCD/MXene nanocomposites for supercapacitor applications. The cyclic voltammetry and galvanostatic charge-discharge analysis revealed the pseudocapacitance and an improved specific capacitance of 1693.43 F g-1 at 0.90 A g-1 for the CuO@βCD/MXene (1:1) nanocomposite. The electrochemical impedance analysis displays superior electrical conductivity with a low charge transfer resistance value on incorporating CuO@βCD between the MXene layers. Furthermore, the CuO@βCD/MXene (1:1) nanocomposite exhibited improved long-term cycling stability by retaining 86% of its initial specific capacitance even after the 10,000th cycle at the current density of 4.54 A g-1. Based on the electrochemical performance, the CuO@βCD/MXene (1:1) nanocomposite proves its suitability as an electrode material for supercapacitor application with long-term cycling stability and rate capability.
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Affiliation(s)
- Anakha D Rajeeve
- Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Ramasamy Yamuna
- Department of Sciences, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore 641112, India
| | - Mari Vinoba
- Petroleum Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
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Veetil VT, Rajeeve AD, G.P S, Manish Kumar K, Bhagiyalakshmi M, Vinoba M, Yamuna R. β-Cyclodextrin capped ZnS nanoparticles for CER-assisted colorimetric and spectrophotometric detection of Pb 2⁺, Cu 2⁺, and Hg 2⁺ in an aqueous solution. Heliyon 2023; 9:e21850. [PMID: 38027943 PMCID: PMC10663911 DOI: 10.1016/j.heliyon.2023.e21850] [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: 06/15/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
Herein, simple, low-cost, and room-temperature synthesis of beta-cyclodextrin (β-CD) stabilized zinc sulfide nanoparticle (ZnS NP) through the chemical precipitation method has been reported for cation exchange reaction (CER) based colorimetric sensing of Pb2+, Cu2+, and Hg2+. Formation of β-CD stabilized ZnS NPs (ZnS@β-CD) was verified by physicochemical characterization techniques such as XRD, XPS, FE-SEM, and TEM. ZnS@β-CD NPs showed color change selectively for the metal ions Pb2⁺, Cu2⁺, and Hg2⁺ among the various metal ions including Sn2⁺, Cr³⁺, Mn2⁺, Fe³⁺, Co2⁺, Ni2⁺, and Cd2⁺. The solubility product of reactants and the transformed products are the reason for selective CER of ZnS@β-CD NPs towards Pb2⁺, Cu2⁺, and Hg2⁺ ions. ZnS@β-CD NPs dispersion revealed rapid color change from white to orange, black, and bright yellow on the addition of higher concentrations of Pb2⁺, Cu2⁺, and Hg2⁺ respectively. This color change is due to the formation of complete CER-transformed nanostructures such as PbS, CuS, and HgS in higher concentrations (10⁻1- 10⁻³ M) of corresponding metal ions. The partial CER altered products Zn1-x,PbxS, Zn1-xCuxS and Zn1-xHgxS were detected due to the appearance of pale color in the lower metal ions concentrations of 10⁻⁴ - 10⁻⁶ M. This CER assisted transformation was also monitored through spectrophotometric methods. Moreover, infrared spectroscopic analysis was used to testify the structure of CER transformed product. The synthesized ZnS@β-CD NPs act as an efficient CER-based sensor for distinguishing and determining Pb2⁺, Cu2⁺, and Hg2⁺ at different level concentrations in the aqueous solution.
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Affiliation(s)
- Vyshnavi T. Veetil
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - Anakha D. Rajeeve
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - Saran G.P
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - K.S. Manish Kumar
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India
| | - M. Bhagiyalakshmi
- Department of Chemistry, Central University of Kerala, Periye, Kerala 671316, India
| | - Mari Vinoba
- Petroleum Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - R. Yamuna
- Department of Sciences, Amrita School of Physical Sciences Coimbatore, Amrita Vishwa Vidyapeetham, India
- Bio-materials Chemistry Research Laboratory, Amrita School of Engineering Coimbatore, Amrita Vishwa Vidyapeetham, India
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