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Mondal H, Karmakar M, Datta B. Ligand-selective turn-off sensing, harvesting and post-adsorptive use of Dy(III) and Yb(III) by intrinsically fluorescent flower-shaped Gum Acacia-grafted hydrogels. Sci Rep 2024; 14:18373. [PMID: 39112525 PMCID: PMC11306756 DOI: 10.1038/s41598-024-65932-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 06/25/2024] [Indexed: 08/10/2024] Open
Abstract
Rare earth metals (REMs), such as Dysprosium (Dy) and Ytterbium (Yb), have experienced unprecedented demand in recent times due to their applications in high-end technologies. REMs are found only in select geographic locations placing tremendous economic constraints on their use. In this work, we have developed Gum Acacia-grafted hydrogels (GmAc-FluoroTerPs) that are capable of selective detection and capture of Dy and Yb. The intrinsically blue fluorescent polymer hydrogel GmAc-FluoroTerP has been optimized for Dy(III) and Yb(III) specific quenching, enabling limit of detection of the REMs at 0.13 nM and 60.8 pM, respectively. A comprehensive structural characterization of the fluorescent hydrogel has been performed via NMR, FTIR, XPS, EPR, TGA, XRD, TEM, SEM, EDX, TCSPC, and DLS. In addition to an in situ generated fluorophore, GmAc-FluoroTerP displays a distinctive aggregation induced emission enhancement in mixed solvents. The complexation of Dy(III)/Yb(III) with GmAc-FluoroTerP hydrogel has been characterized by XPS, TCSPC, and logic gate analyses, and the adsorptive capacity for Dy(III) and Yb(III) are found to be best reported till date as 125.57 mg g-1 and 102.27 mg g-1, respectively. Desorption at acidic pH allows recovery of the REMs. We also report semiconducting behaviour of the native fluorescent hydrogel, that is enhanced upon adsorptive capture of Dy(III) and Yb(III), with calculated band gaps at 1.37, 0.77, and 0.49 eV, respectively. The convergent sensing, capture, and reuse of Dy(III) and Yb(III) presented in this work promises a hitherto unreported template for application on other REMs.
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Affiliation(s)
- Himarati Mondal
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, 382055, India.
| | - Mrinmoy Karmakar
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, 382055, India
- Department of Pharmacy, College of Pharmacy, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Bhaskar Datta
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, 382055, India.
- Department of Biological Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gujarat, 382055, India.
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2
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Bhoyate SD, Kim J, de Souza FM, Lin J, Lee E, Kumar A, Gupta RK. Science and engineering for non-noble-metal-based electrocatalysts to boost their ORR performance: A critical review. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Salem Alsaiari N, Ahmad M, Shaheen I, Ali I, Amara U, Mohammed Alzahrani F, Eldin SM, Ul Arifeen W, Jo Ko T, Hussain I. Three-dimensional flower-like nanocomposites based on ZnO/NiO as effective electrode materials for supercapacitors. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2023.117158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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4
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Chinnaiah K, Krishnamoorthy R, Kannan K, Sivaganesh D, Saravanakumar S, Theivasanthi T, Palko N, Grishina M, Maik V, Gurushankar K. Ag nanoparticles synthesized by Datura metel L. leaf extract and their charge density distribution, electrochemical and biological performance. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Li H, Han X, Zhao W, Azhar A, Jeong S, Jeong D, Na J, Wang S, Yu J, Yamauchi Y. Electrochemical preparation of nano/micron structure transition metal-based catalysts for the oxygen evolution reaction. MATERIALS HORIZONS 2022; 9:1788-1824. [PMID: 35485940 DOI: 10.1039/d2mh00075j] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrochemical water splitting is a promising technology for hydrogen production and sustainable energy conversion, but the existing electrolytic cells lack a sufficient number of robust and highly active anodic electrodes for the oxygen evolution reaction (OER). Electrochemical synthesis technology provides a feasible route for the preparation of independent OER electrodes with high utilization of active sites, fast mass transfer, and a simple preparation process. A comprehensive review of the electrochemical synthesis of nano/microstructure transition metal-based OER materials is provided. First, some fundamentals of electrochemical synthesis are introduced, including electrochemical synthesis strategies, electrochemical synthesis substrates, the electrolyte used in electrochemical synthesis, and the combination of electrochemical synthesis and other synthesis methods. Second, the morphology and properties of electrochemical synthetic materials are summarized and introduced from the viewpoint of structural design. Then, the latest progress regarding the development of transition metal-based OER electrocatalysts is reviewed, including the classification of metals/alloys, oxides, hydroxides, sulfides, phosphides, selenides, and other transition metal compounds. In addition, the oxygen evolution mechanism and rate-determining steps of transition metal-based catalysts are also discussed. Finally, the advantages, challenges, and opportunities regarding the application of electrochemical techniques in the synthesis of transition metal-based OER electrocatalysts are summarized. This review can provide inspiration for researchers and promote the development of water splitting technology.
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Affiliation(s)
- Huixi Li
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Xue Han
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Wen Zhao
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Alowasheeir Azhar
- JST-ERATO Yamauchi Materials Space-Tectonics Project, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Seunghwan Jeong
- Research and Development (R&D) Division, Green Energy Institute, Mokpo, Jeollanamdo 58656, Republic of Korea.
| | - Deugyoung Jeong
- Research and Development (R&D) Division, Green Energy Institute, Mokpo, Jeollanamdo 58656, Republic of Korea.
| | - Jongbeom Na
- Research and Development (R&D) Division, Green Energy Institute, Mokpo, Jeollanamdo 58656, Republic of Korea.
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia.
| | - Shengping Wang
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China.
| | - Jingxian Yu
- ARC Centre of Excellence for Nanoscale BioPhotonics (CNBP), School of Chemistry and Physics, The University of Adelaide, Adelaide, SA 5005, Australia.
| | - Yusuke Yamauchi
- JST-ERATO Yamauchi Materials Space-Tectonics Project, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD 4072, Australia.
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6
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Direct growth of hierarchical CoFe2O4 flower-like nanoflake arrays on Ni foam for high performance asymmetrical supercapacitor. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Chamani S, Khatamian M, Peighambardoust NS, Aydemir U. Microwave-Assisted Auto-Combustion Synthesis of Binary/Ternary Co x Ni 1-x Ferrite for Electrochemical Hydrogen and Oxygen Evolution. ACS OMEGA 2021; 6:33024-33032. [PMID: 34901654 PMCID: PMC8655901 DOI: 10.1021/acsomega.1c05183] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 11/10/2021] [Indexed: 05/03/2023]
Abstract
Enormous efforts have been dedicated to engineering low-cost and efficient electrocatalysts for both hydrogen evolution and oxygen evolution reactions (HER and OER, respectively). For this, the current contribution reports the successful synthesis of binary/ternary metal ferrites (Co x Ni1-x Ferrite; x = 0.0, 0.1, 0.3, 0.5, 0.7, and 1.0) by a simple one-step microwave technique and subsequently discusses its chemical and electrochemical properties. The X-ray diffraction analysis substantiated the phase purity of the as-obtained catalysts with various compositions. Additionally, the morphology of the nanoparticles was identified via transmission electron microscopy. Further, the vibrating sample magnetometer justified the ferromagnetic character of the as-prepared products. The electrochemical measurements revealed that the as-prepared materials required the overpotentials of 422-600 and 419-467 mV for HER and OER, respectively, to afford current densities of 10 mA cm-2. In the general sense, Ni cation substitution with Co influenced favorably toward both HER and OER. Among all synthesized electrocatalysts, Co0.9Ni0.1Ferrite displayed the highest performance in terms of OER in 1 M KOH solution, which is related to the synergistic effect of multiple parameters including the optimal substitution amount of Co, the highest Brunauer-Emmett-Teller surface area, the smallest particle size among all samples (26.71 nm), and the lowest charge transfer resistance. The successful synthesis of ternary ferrites carried out for the first time via a microwave-assisted auto-combustion route opens up a new path for their applications in renewable energy technologies.
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Affiliation(s)
- Sanaz Chamani
- Inorganic
Chemistry Department, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Maasoumeh Khatamian
- Inorganic
Chemistry Department, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran
| | - Naeimeh Sadat Peighambardoust
- Koç
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul 34450, Turkey
| | - Umut Aydemir
- Koç
University Boron and Advanced Materials Application and Research Center
(KUBAM), Sariyer, Istanbul 34450, Turkey
- Department
of Chemistry, Koç University, Sariyer, Istanbul 34450, Turkey
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8
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Gajraj V, Azmi R, Indris S, Mariappan CR. Boosting the Multifunctional Properties of MnCo
2
O
4
‐MnCo
2
S
4
Heterostructure for Portable All‐Solid‐State Symmetric Supercapacitor, Methanol Oxidation and Hydrogen Evolution Reaction. ChemistrySelect 2021. [DOI: 10.1002/slct.202103138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- V. Gajraj
- Department of Physics National Institute of Technology Kurukshetra Haryanay 136 119 India
- Research & Development cell Uttaranchal University Dehradun Uttarakhand 248001 India
| | - R. Azmi
- Institute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - S. Indris
- Institute for Applied Materials (IAM) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - C. R. Mariappan
- Department of Physics National Institute of Technology Kurukshetra Haryanay 136 119 India
- Department of Physics National Institute of Technology-Puducherry Karaikal 609609 India
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9
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Singh D, Raj KK, Azad UP, Pandey R. In situ transformed three heteroleptic Co(II)-MOFs as potential electrocatalysts for the electrochemical oxygen evolution reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.139117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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10
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Shombe GB, Razzaque S, Khan MD, Nyokong T, Mashazi P, Choi J, Bhoyate S, Gupta RK, Revaprasadu N. Low temperature scalable synthetic approach enabling high bifunctional electrocatalytic performance of NiCo 2S 4 and CuCo 2S 4 thiospinels. RSC Adv 2021; 11:31533-31546. [PMID: 35496864 PMCID: PMC9041439 DOI: 10.1039/d1ra02309h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 08/22/2021] [Indexed: 01/24/2023] Open
Abstract
Ternary metal sulfides are currently in the spotlight as promising electroactive materials for high-performance energy storage and/or conversion technologies. Extensive research on metal sulfides has indicated that, amongst other factors, the electrochemical properties of the materials are strongly influenced by the synthetic protocol employed. Herein, we report the electrochemical performance of uncapped NiCo2S4 and CuCo2S4 ternary systems prepared via solventless thermolysis of the respective metal ethyl xanthate precursors at 200 and 300 °C. The structural, morphological and compositional properties of the synthesized nanoparticles were examined by powder X-ray diffraction (p-XRD), transmission electron microscopy (TEM), high-resolution TEM, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and energy-dispersive X-ray spectroscopy (EDX) techniques. Electrochemical studies indicate that NiCo2S4 nanoparticles synthesized at 300 °C exhibit superior energy storage characteristics with a high specific capacitance of ca. 2650 F g−1 at 1 mV s−1, as compared to CuCo2S4 nanoparticles, which showcased a specific capacitance of ca. 1700 F g−1 at the same scan rate. At a current density of 0.5 A g−1, NiCo2S4 and CuCo2S4 nanoparticles displayed specific capacitances of 1201 and 475 F g−1, respectively. In contrast, CuCo2S4 nanoparticles presented a higher electrocatalytic activity with low overpotentials of 269 mV for oxygen evolution reaction (OER), and 224 mV for the hydrogen evolution reaction (HER), at 10 mA cm−2. The stability of the catalysts was examined for 2000 cycles in which a negligible change in both OER and HER activities was observed. A scalable solventless approach is employed to prepare NiCo2S4 and CuCo2S4 with bare surface for enhanced supercapacitance and water splitting. The particles exhibit good energy storage and electrocatalytic activity as well as stability.![]()
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Affiliation(s)
- Ginena Bildard Shombe
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3880 South Africa .,Chemistry Department, University of Dar es Salaam P.O. Box 35061 Dar es Salaam Tanzania
| | - Shumaila Razzaque
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology Luoyu Road No. 1037 Wuhan China
| | - Malik Dilshad Khan
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3880 South Africa .,Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Rhodes University P.O. Box 94 Makhanda 6140 South Africa
| | - Philani Mashazi
- Institute for Nanotechnology Innovation, Rhodes University P.O. Box 94 Makhanda 6140 South Africa.,Department of Chemistry, Rhodes University P. O. Box 94 Makhanda 6140 South Africa
| | - Jonghyun Choi
- Department of Chemistry, Pittsburg State University Pittsburg KS 66762 USA
| | - Sanket Bhoyate
- Department of Chemistry, Pittsburg State University Pittsburg KS 66762 USA
| | - Ram K Gupta
- Department of Chemistry, Pittsburg State University Pittsburg KS 66762 USA
| | - Neerish Revaprasadu
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3880 South Africa
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11
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Qin H, He Y, Xu P, Huang D, Wang Z, Wang H, Wang Z, Zhao Y, Tian Q, Wang C. Spinel ferrites (MFe 2O 4): Synthesis, improvement and catalytic application in environment and energy field. Adv Colloid Interface Sci 2021; 294:102486. [PMID: 34274724 DOI: 10.1016/j.cis.2021.102486] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/03/2021] [Accepted: 07/06/2021] [Indexed: 12/20/2022]
Abstract
To develop efficient catalysts is one of the major ways to solve the energy and environmental problems. Spinel ferrites, with the general chemical formula of MFe2O4 (where M = Mg2+, Co2+, Ni2+, Zn2+, Fe2+, Mn2+, etc.), have attracted considerable attention in catalytic research. The flexible position and valence variability of metal cations endow spinel ferrites with diverse physicochemical properties, such as abundant surface active sites, high catalytic activity and easy to be modified. Meanwhile, their unique advantages in regenerating and recycling on account of the magnetic performances facilitate their practical application potential. Herein, the conventional as well as green chemistry synthesis of spinel ferrites is reviewed. Most importantly, the critical pathways to improve the catalytic performance are discussed in detail, mainly covering selective doping, site substitution, structure reversal, defect introduction and coupled composites. Furthermore, the catalytic applications of spinel ferrites and their derivative composites are exclusively reviewed, including Fenton-type catalysis, photocatalysis, electrocatalysis and photoelectro-chemical catalysis. In addition, some vital remarks, including toxicity, recovery and reuse, are also covered. Future applications of spinel ferrites are envisioned focusing on environmental and energy issues, which will be pushed by the development of precise synthesis, skilled modification and advanced characterization along with emerging theoretical calculation.
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Affiliation(s)
- Hong Qin
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yangzhuo He
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Piao Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China..
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China..
| | - Ziwei Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Han Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Zixuan Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Yin Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Quyang Tian
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
| | - Changlin Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082, PR China
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12
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Shaheen I, Ahmad KS, Zequine C, Gupta RK, Thomas AG, Malik MA. Facile ZnO-based nanomaterial and its fabrication as a supercapacitor electrode: synthesis, characterization and electrochemical studies. RSC Adv 2021; 11:23374-23384. [PMID: 35479794 PMCID: PMC9036585 DOI: 10.1039/d1ra04341b] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/16/2021] [Indexed: 01/17/2023] Open
Abstract
In recent times, tremendous efforts have been devoted to the efficient and cost-effective advancements of electrochemically active metal oxide nanomaterials. Here, we have synthesized a facile nanomaterial of ZnO@PdO/Pd by employing extracted fuel from E. cognata leaves following a hydrothermal route. The phyto-fueled ZnO@PdO/Pd nanomaterial was fabricated into a supercapacitor electrode and was scrutinized by galvanostatic charge–discharge, electrochemical impedance spectroscopy and cyclic voltammetry to evaluate its energy storage potential, and transport of electrons and conductivity. Substantial specific capacitance i.e., 178 F g−1 was obtained in the current study in aKOH electrolyte solution. A specific energy density of 3.7 W h Kg−1 was measured using the charge–discharge data. A high power density of 3718 W Kg−1 was observed for the ZnO@PdO/Pd electrode. Furthermore, the observed low internal resistance of 0.4 Ω suggested effective electron- and ion diffusion. Thus, the superb electrochemical behavior of the ZnO@PdO/Pd nanocomposite was exposed, as verified by the significant redox behavior shown by cyclic voltammetry and galvanostatic charge–discharge. In recent times, tremendous efforts have been devoted to the efficient and cost-effective advancements of electrochemically active metal oxide nanomaterials.![]()
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Affiliation(s)
- Irum Shaheen
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Camila Zequine
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Ram K Gupta
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Andrew G Thomas
- Department of Materials, Photon Science Institute and Sir Henry Royce Institute, Alan Turing Building The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Mohammad Azad Malik
- Department of Materials, Photon Science Institute and Sir Henry Royce Institute, Alan Turing Building The University of Manchester Oxford Road Manchester M13 9PL UK
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13
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Abstract
The rapid increase in anthropogenic greenhouse gas concentrations in the last several decades means that the effects of climate change are fast becoming the familiar horsemen of a planetary apocalypse. Catalysis, one of the pillars of the chemical and petrochemical industries, will play a critical role in the effort to reduce the flow of greenhouse gases into the atmosphere. This Special Issue is timely, as it provides a collection of high-quality manuscripts in a diverse range of topics, which include the production of green hydrogen via water electrolysis, the steam reforming of ethanol, propane or glycerol, the dry reforming of methane, and the autothermal reforming of diesel surrogate fuel. The topic of the transformation of biomass waste to chemicals is also well represented as is the tackling of CO2 emissions via novel utilization technologies. The Editors are grateful to all authors for their valuable contributions and confident that this Special Issue will prove valuable to scholars, university professors and students alike.
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14
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Siwatch P, Sharma K, Singh N, Manyani N, Tripathi S. Enhanced supercapacitive performance of reduced graphene oxide by incorporating NiCo2O4 quantum dots using aqueous electrolyte. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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15
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Jiang YC, Arshad HMU, Li HJ, Liu S, Li GR, Gao XP. Crystalline Multi-Metallic Compounds as Host Materials in Cathode for Lithium-Sulfur Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005332. [PMID: 33690966 DOI: 10.1002/smll.202005332] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 10/28/2020] [Indexed: 06/12/2023]
Abstract
Lithium-sulfur (Li-S) battery is one of the most promising next-generation rechargeable batteries. Lots of fundamental research has been done for the problems during cycling like capacity fading and columbic efficiency reducing owing to severe diffusion and migration of polysulfide intermediates. In the early stage, a wide variety of carbon materials are used as host materials for sulfur to enhance electrical conductivity and adsorb soluble polysulfides. Beyond carbon materials, metal based polar compounds are introduced as host materials for sulfur because of their strong catalytic activity and adsorption ability to suppress the shuttle effect. In addition, relatively high density of metal compounds is helpful for increasing volumetric energy density of Li-S batteries. This review focuses on crystalline multi-metal compounds as host materials in sulfur cathodes. The multi-metal compounds involve not only transition metal composite oxides with specific crystalline structures, binary metal chalcogenides, double or complex salts, but also the metal compounds doped or partially substituted by other metal ions. Generally, for the multi-metal compounds, microstructure and morphologies in micro-nano scale are very significant for mass transfer in electrodes; moreover, adsorption and catalytic ability for polysulfides make fast kinetics in the electrode processes.
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Affiliation(s)
- Yi-Cheng Jiang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Hafiz Muhammad Umair Arshad
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Hao-Jie Li
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Sheng Liu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Guo-Ran Li
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin, 300350, China
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16
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Malima NM, Khan MD, Choi J, Gupta RK, Mashazi P, Nyokong T, Revaprasadu N. Solventless synthesis of nanospinel Ni 1−xCo xFe 2O 4 (0 ≤ x ≤ 1) solid solutions for efficient electrochemical water splitting and supercapacitance. RSC Adv 2021; 11:31002-31014. [PMID: 35498927 PMCID: PMC9041409 DOI: 10.1039/d1ra04833c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/10/2021] [Indexed: 11/21/2022] Open
Abstract
The formation of solid solutions represents a robust strategy for modulating the electronic properties and improving the electrochemical performance of spinel ferrites. However, solid solutions have been predominantly prepared via wet chemical routes, which involve the use of harmful and/or expensive chemicals. In the present study, a facile, inexpensive and environmentally benign solventless route is employed for the composition-controlled synthesis of nanoscopic Ni1−xCoxFe2O4 (0 ≤ x ≤ 1) solid solutions. The physicochemical characterization of the samples was performed by p-XRD, SEM, EDX, XPS, TEM, HRTEM and UV-Vis techniques. A systematic investigation was also carried out to elucidate the electrochemical performance of the prepared nanospinels towards energy generation and storage. Based on the results of CV, GCD, and stability tests, the Ni0.4Co0.6Fe2O4 electrode showed the highest performance for the supercapacitor electrode exhibiting a specific capacitance of 237 F g−1, superior energy density of 10.3 W h kg−1 and a high power density with a peak value of 4208 W kg−1, and 100% of its charge storage capacity was retained after 4000 cycles with 97% coulombic efficiency. For HER, the Ni0.6Co0.4Fe2O4 and CoFe2O4 electrodes showed low overpotentials of 168 and 169 mV, respectively, indicating better catalytic activity. For OER, the Ni0.8Co0.2Fe2O4 electrode exhibited a lower overpotential of 320 mV at a current density of 10 mA cm−2, with a Tafel slope of 79 mV dec−1, demonstrating a fast and efficient process. These results indicated that nanospinel ferrite solid solutions could be employed as promising electrode materials for supercapacitor and water splitting applications. The formation of solid solutions represents a robust strategy for modulating the electronic properties and improving the electrochemical performance of spinel ferrites.![]()
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Affiliation(s)
- Nyemaga Masanje Malima
- Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3880, South Africa
- Department of Chemistry, College of Natural and Mathematical Sciences, University of Dodoma, P. O. Box 338, Dodoma, Tanzania
| | - Malik Dilshad Khan
- Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3880, South Africa
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Jonghyun Choi
- Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Ram K. Gupta
- Department of Chemistry, Pittsburg State University, Pittsburg, KS, 66762, USA
| | - Philani Mashazi
- Department of Chemistry, Rhodes University, PO Box 94, Makhanda, 6140, South Africa
- Institute for Nanotechnology Innovation, Rhodes University, PO Box 94, Makhanda, 6140, South Africa
| | - Tebello Nyokong
- Institute for Nanotechnology Innovation, Rhodes University, PO Box 94, Makhanda, 6140, South Africa
| | - Neerish Revaprasadu
- Department of Chemistry, University of Zululand, Private Bag X1001, KwaDlangezwa 3880, South Africa
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17
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Zahra T, Ahmad KS, Thomas AG, Zequine C, Gupta RK, Malik MA, Sohail M. Phyto-inspired and scalable approach for the synthesis of PdO-2Mn 2O 3: a nano-material for application in water splitting electro-catalysis. RSC Adv 2020; 10:29961-29974. [PMID: 35518230 PMCID: PMC9056303 DOI: 10.1039/d0ra04571c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 07/11/2020] [Indexed: 12/23/2022] Open
Abstract
A modified co-precipitation method has been used for the synthesis of a PdO-2Mn2O3 nanocomposite as an efficient electrode material for the electro-catalytic oxygen evolution (OER) and hydrogen evolution reaction (HER). Palladium acetate and manganese acetate in molar ratio 1 : 4 were dissolved in water, and 10 ml of an aqueous solution of phyto-compounds was slowly added until completion of precipitation. The filtered and dried precipitates were then calcined at 450 °C to obtain a blackish brown colored mixture of PdO-2Mn2O3 nanocomposite. These particles were analyzed by ultra violet visible spectrophotometry (UV-vis), infrared spectroscopy (FTIR), powder X-ray diffractometry (XRD), scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) for crystallinity, optical properties, and compositional and morphological makeup. Using Tauc's plot, the direct band gap (3.18 eV) was calculated from the absorption spectra. The average crystallite sizes, as calculated from the XRD, were found to be 15 and 14.55 nm for PdO and Mn2O3, respectively. A slurry of the phyto-fabricated PdO-2Mn2O3 powder was deposited on Ni-foam and tested for electro-catalytic water splitting studies in 1 M KOH solution. The electrode showed excellent OER and HER performance with low over-potential (0.35 V and 121 mV) and Tafel slopes of 115 mV dec-1 and 219 mV dec-1, respectively. The outcomes obtained from this study provide a direction for the fabrication of a cost-effective mixed metal oxide based electro-catalyst via an environmentally benign synthesis approach for the generation of clean energy.
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Affiliation(s)
- Taghazal Zahra
- Department of Environmental Sciences, Fatima Jinnah Women University The Mall Rawalpindi Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University The Mall Rawalpindi Pakistan
| | - Andrew Guy Thomas
- Department of Materials, Photon Science Institute and Sir Henry Royce Institute, Alan Turing Building, The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Camila Zequine
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Ram K Gupta
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Mohammad Azad Malik
- Department of Materials, Photon Science Institute and Sir Henry Royce Institute, Alan Turing Building, The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Manzar Sohail
- School of Natural Sciences, National University of Sciences and Technology (NUST) Islamabad Pakistan
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18
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Zhang Y, Lu T, Ye Y, Dai W, Zhu Y, Pan Y. Stabilizing Oxygen Vacancy in Entropy-Engineered CoFe 2O 4-Type Catalysts for Co-prosperity of Efficiency and Stability in an Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2020; 12:32548-32555. [PMID: 32614574 DOI: 10.1021/acsami.0c05916] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We used entropy engineering to design a series of CoFe2O4-type spinels. Through microstructural characterization, electrochemical measurements, and X-ray photoelectron spectroscopy, we demonstrated that the entropy-stabilized oxide (Co0.2Mn0.2Ni0.2Fe0.2Zn0.2)Fe2O4 has a single-phase spinel structure and exhibits both efficient and stable catalytic oxygen evolution. This is attributable to disordered occupation of multivalent cations, which induces severe lattice distortion and increases configurational entropy, thereby facilitating formation of structurally stable, high-density oxygen vacancies on the exposed surface of the spinel. Thus, more catalytic sites on the surface are activated and retained over the course of long-duration testing for oxygen evolution. Entropy engineering expands researchers' access to catalysts that link entropy-stabilized structures to useful properties.
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Affiliation(s)
- Yue Zhang
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Tao Lu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Yike Ye
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Weiji Dai
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Yin'an Zhu
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
| | - Ye Pan
- School of Materials Science and Engineering, Jiangsu Key Laboratory of Advanced Metallic Materials, Southeast University, Nanjing 211189, China
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19
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Shaheen I, Ahmad KS, Zequine C, Gupta RK, Thomas A, Malik MA. Organic template-assisted green synthesis of CoMoO 4 nanomaterials for the investigation of energy storage properties. RSC Adv 2020; 10:8115-8129. [PMID: 35497827 PMCID: PMC9049887 DOI: 10.1039/c9ra09477f] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/14/2020] [Indexed: 11/21/2022] Open
Abstract
Transitional metal oxide nanomaterials are considered to be potential electrode materials for supercapacitors. Therefore, in the past few decades, huge efforts have been devoted towards the sustainable synthesis of metal oxide nanomaterials. Herein, we report a synergistic approach to synthesize spherical-shaped CoMoO4 electrode materials using an inorganic-organic template via the hydrothermal route. As per the synthesis strategy, the precursor solution was reacted with the organic compounds of E. cognata to tailor the surface chemistry and morphology of CoMoO4 by organic species. The modified CoMoO4 nanomaterials revealed a particle size of 23 nm by X-ray diffraction. Furthermore, the synthesized material was scrutinized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy and energy dispersive spectroscopy. The optical band gap energy of 3.6 eV was calculated by a Tauc plot. Gas chromatography-mass spectrometry identified cyclobutanol (C4H8O) and octodrine (C8H19N) as the major stabilizing agents of the CoMoO4 nanomaterial. Finally, it was revealed that the bioorganic framework-derived CoMoO4 electrode exhibited a capacitance of 294 F g-1 by cyclic voltammetry with a maximum energy density of 7.3 W h kg-1 and power density of 7227.525 W kg-1. Consequently, the nanofeatures and organic compounds of E. cognata were found to enhance the electrochemical behaviour of the CoMoO4-fabricated electrode towards supercapacitor applications.
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Affiliation(s)
- Irum Shaheen
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Khuram Shahzad Ahmad
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi Pakistan
| | - Camila Zequine
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Ram K Gupta
- Department of Chemistry, Pittsburg State University 1701 South Broadway Street Pittsburg KS 66762 USA
| | - Andrew Thomas
- Department of Materials, Photon Science Institute, Sir Henry Royce Institute, Alan Turing Building, The University of Manchester Oxford Road Manchester M13 9PL UK
| | - Mohammad Azad Malik
- Department of Materials, Photon Science Institute, Sir Henry Royce Institute, Alan Turing Building, The University of Manchester Oxford Road Manchester M13 9PL UK
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20
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Jaoude MA, Alhseinat E, Polychronopoulou K, Bharath G, Darawsheh IFF, Anwer S, Baker MA, Hinder SJ, Banat F. Morphology-dependent electrochemical performance of MnO2 nanostructures on graphene towards efficient capacitive deionization. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135202] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Touni A, Papaderakis A, Karfaridis D, Vourlias G, Sotiropoulos S. Oxygen Evolution Reaction at IrO 2/Ir(Ni) Film Electrodes Prepared by Galvanic Replacement and Anodization: Effect of Precursor Ni Film Thickness. Molecules 2019; 24:E2095. [PMID: 31159428 PMCID: PMC6600157 DOI: 10.3390/molecules24112095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 11/16/2022] Open
Abstract
IrO2/Ir(Ni) film electrodes of variable Ni content have been prepared via a galvanic replacement method, whereby surface layers of pre-deposited Ni are replaced by Ir, followed by electrochemical anodization. Electrodeposition of Ni on a glassy carbon electrode support has been carried out at constant potential and the charge of electrodeposited Ni controlled so as to investigate the effect of precursor Ni layer thickness on the electrocatalytic activity of the corresponding IrO2/Ir(Ni)/GC electrodes for the oxygen evolution reaction (OER). After their preparation, these electrodes were characterized by microscopic (SEM) and spectroscopic (EDS, XPS) techniques, revealing the formation of Ir deposits on the Ni support and a thin IrO2 layer on their surfaces. To determine the electroactive surface area of the IrO2 coatings, cyclic voltammograms were recorded in the potential range between hydrogen and oxygen evolution and the charge under the anodic part of the curves, corresponding to Ir surface oxide formation, served as an indicator of the quantity of active IrO2 in the film. The electrocatalytic activity of the coatings for OER was investigated by current-potential curves under steady state conditions, revealing that the catalysts prepared from thinner Ni films exhibited enhanced electrocatalytic performance.
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Affiliation(s)
- Aikaterini Touni
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Athanasios Papaderakis
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Dimitrios Karfaridis
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Georgios Vourlias
- Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Sotirios Sotiropoulos
- Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
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22
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Engineering Ternary Copper-Cobalt Sulfide Nanosheets as High-performance Electrocatalysts toward Oxygen Evolution Reaction. Catalysts 2019. [DOI: 10.3390/catal9050459] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The rational design and development of the low-cost and effective electrocatalysts toward oxygen evolution reaction (OER) are essential in the storage and conversion of clean and renewable energy sources. Herein, a ternary copper-cobalt sulfide nanosheets electrocatalysts (denoted as CuCoS/CC) for electrochemical water oxidation has been synthesized on carbon cloth (CC) via the sulfuration of CuCo-based precursors. The obtained CuCoS/CC reveals excellent electrocatalytic performance toward OER in 1.0 M KOH. It exhibits a particularly low overpotential of 276 mV at current density of 10 mA cm−2, and a small Tafel slope (58 mV decade−1), which is superior to the current commercialized noble-metal electrocatalysts, such as IrO2. Benefiting from the synergistic effect of Cu and Co atoms and sulfidation, electrons transport and ions diffusion are significantly enhanced with the increase of active sites, thus the kinetic process of OER reaction is boosted. Our studies will serve as guidelines in the innovative design of non-noble metal electrocatalysts and their application in electrochemical water splitting
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