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Adel M, Hassan D, Mohamed MAA, Kassem TSE, Fetouh HA, AbdElhafez SE, El Nady J. Role of synthetic process parameters of nano-sized cobalt/nickel oxide in controlling their structural characteristics and electrochemical energy performance as supercapacitor electrodes. Sci Rep 2024; 14:27187. [PMID: 39516235 PMCID: PMC11549468 DOI: 10.1038/s41598-024-77180-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Accepted: 10/21/2024] [Indexed: 11/16/2024] Open
Abstract
The synthesis of nano-sized bimetallic Cobalt/Nickel oxides (Ni1.5Co1.5O4) with a 1:1 Co/Ni atomic ratio has been achieved using a surfactant-free co-precipitation/hydrothermal process. The growth mechanism of Cobalt/Nickel oxides Ni1.5Co1.5O4 is elucidated by tuning the synthesis process parameters, including co-precipitation pH and hydrothermal time. The formation of Cobalt/Nickel oxides Ni1.5Co1.5O4 oxide began with the nucleation of cobalt nickel hydroxide nanoplates through the co-precipitation process, followed by dissolution-recrystallization, stacked hexagonal nano-flakes, and a flower-like microstructure. The electrochemical performances of the oxides were evaluated, with the largest surface area observed at pH 9 being the main factor for the best super-capacitive performance. As hydrothermal time increased, the structural directing growth forward, resulted in the formation of a nano-flower structure with a larger surface area. The as-prepared cobalt nickel oxide exhibited a maximum specific capacitance value of 525.5 F g-1 at a current density of 1 A g-1 and energy and power densities of 88.2 WhKg-1 and 606 WKg-1, respectively.
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Affiliation(s)
- Marwa Adel
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, 21934, Egypt.
- Petroleum Applications Department, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo, 11727, Egypt.
| | - Dina Hassan
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Marwa A A Mohamed
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, 21934, Egypt
| | | | - Howida Abouel Fetouh
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Sara E AbdElhafez
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, 21934, Egypt
| | - Jehan El Nady
- Electronic Materials Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, 21934, Egypt
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2
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Karmur RS, Gogoi D, Das MR, Ghosh NN. A flexible solid-state asymmetric supercapacitor device comprising cobalt hydroxide and biomass-derived porous carbon. RSC Adv 2024; 14:27465-27474. [PMID: 39211909 PMCID: PMC11358879 DOI: 10.1039/d4ra05106h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 08/18/2024] [Indexed: 09/04/2024] Open
Abstract
Development in the field of alternative and renewable energy sources is becoming necessary considering the current energy demands of the growing technologies. The main challenge associated with the produced energy is to store it for future use, such that it can be used when needed. Supercapacitors are among the electrochemical energy storage systems that provides higher power density, faster charging-discharging, high specific capacitance (C S), and long cycling life. Herein, the fabrication of a flexible solid-state asymmetric supercapacitor (ASC) device is reported, where Co(OH)2 hollow spheres and biomass-derived porous carbon (PC) are the cathode and anode, respectively. Co(OH)2 is a highly redox active material, whereas PC is an electric double-layer capacitive (EDLC) material. In this device, aqueous KOH solution (electrolyte) encapsulated in PVA gel (separator) was used to bind the electrodes. This Co(OH)2//PC ASC device exhibited a high C S of 260 F g-1 (at 2 A g-1). It retained ∼91% of the initial C S value (at 6 A g-1) till ∼5000 cycles. Electrochemical impedance spectroscopy (EIS) study confirmed low internal resistance (0.95 Ω) and charge transfer resistance (1.41 Ω) values of Co(OH)2//PC. These results indicate that the high electron transfer process in the electrode-electrolyte interface during the electrochemical reaction, which is responsible for the excellent performance of this ASC device. The high-performance Co(OH)2//PC ASC device exhibited an energy density of 76.7 W h kg-1 at a power density of 1416.9 W kg-1. To demonstrate its practical use, LED lights were illuminated using this Co(OH)2//PC ASC device.
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Affiliation(s)
- Rajeshvari Samatbhai Karmur
- Nano-materials Lab, Department of Chemistry, BITS-Pilani Goa Campus Zuarinagar Goa-403726 India +91 25570339 +91 832 2580318
| | - Debika Gogoi
- Nano-materials Lab, Department of Chemistry, BITS-Pilani Goa Campus Zuarinagar Goa-403726 India +91 25570339 +91 832 2580318
| | - Manash R Das
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR-NEIST Jorhat Assam-785006 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Narendra Nath Ghosh
- Nano-materials Lab, Department of Chemistry, BITS-Pilani Goa Campus Zuarinagar Goa-403726 India +91 25570339 +91 832 2580318
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3
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Ren X, Bao E, Liu X, Xiang Y, Xu C, Chen H. Advanced Hybrid Supercapacitors Assembled With Beta-Co(OH)2 Microflowers and Microclews as High-performance Cathode Materials. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131391] [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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4
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Shilpa N, Pandikassala A, Krishnaraj P, Walko PS, Devi RN, Kurungot S. Co-Ni Layered Double Hydroxide for the Electrocatalytic Oxidation of Organic Molecules: An Approach to Lowering the Overall Cell Voltage for the Water Splitting Process. ACS APPLIED MATERIALS & INTERFACES 2022; 14:16222-16232. [PMID: 35377138 DOI: 10.1021/acsami.2c00982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Electrocatalytic oxidation of simple organic molecules offers a promising strategy to combat the sluggish kinetics of the water oxidation reaction (WOR). The low potential requirement, inhibition of the crossover of gases, and formation of value-added products at the anode are benefits of the electrocatalytic oxidation of organic molecules. Herein, we developed cobalt-nickel-based layered double hydroxide (LDH) as a robust material for the electrocatalytic oxidation of alcohols and urea at the anode, replacing the WOR. A facile synthesis protocol to form LDHs with different ratios of Co and Ni is adapted. It demonstrates that the reactants could be efficiently oxidized to concomitant chemical products at the anode. The half-cell study shows an onset potential of 1.30 V for benzyl alcohol oxidation reaction (BAOR), 1.36 V for glycerol oxidation reaction (GOR), 1.33 V for ethanol oxidation reaction (EOR), and 1.32 V for urea oxidation reaction (UOR) compared with 1.53 V for WOR. Notably, the hybrid electrolyzer in a full-cell configuration significantly reduces the overall cell voltage at a 20 mA cm-2 current density by ∼15% while coupling with the BAOR, EOR, and GOR and ∼12% with the UOR as the anodic half-cell reaction. Furthermore, the efficiency of hydrogen generation remains unhampered with the types of oxidation reactions (alcohols and urea) occurring at the anode. This work demonstrates the prospects of lowering the overall cell voltage in the case of a water electrolyzer by integrating the hydrogen evolution reaction with suitable organic molecule oxidation.
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Affiliation(s)
- Nagaraju Shilpa
- Physical and Materials Chemistry Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
| | - Ajmal Pandikassala
- Physical and Materials Chemistry Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
| | - Perayil Krishnaraj
- Physical and Materials Chemistry Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
- School of Chemical Sciences, Kannur University, Payyanur 670327, India
| | - Priyanka S Walko
- Catalysis Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
| | - R Nandini Devi
- Catalysis Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
| | - Sreekumar Kurungot
- Physical and Materials Chemistry Division, Council of Scientific and Industrial Research-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India
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5
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Electrochemical non-enzymatic glucose sensor using ionic liquid incorporated cobalt-based metal-organic framework. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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6
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Electrochemical Assessment of As-Deposited Co(OH)2 by Electrochemical Synthesis: The Effect of Synthesis Temperature on Performance. ENERGIES 2019. [DOI: 10.3390/en12224246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this paper, the influence of an electrolytic temperature bath was used in the electrodeposition process on the size, color, and shape of the as-deposited Co(OH)2, and the electrochemical performance was investigated. Three different temperatures of 25, 60, and 95 °C were evaluated for the electrodeposition of Co(OH)2 on stainless steel plates (SSP). The electrochemical performance of the as-deposited electrodes (SSP) was measured in a symmetric electrochemical cell (EC) arrangement. XRD, SEM, and N2 physisorption analyses were carried out to evaluate the structure and morphological composition, along with the textural properties. Results showed that the hexagonal platelet micro-clusters of Co(OH)2 are formed in a mixed composition of both α-Co(OH)2 and β-Co(OH)2 phases, with the α-Co(OH)2 phase being the major phase formed in the electrodeposition process at temperatures below 95 °C, as suggested by the XRD analysis. Electrochemical cell performances were evaluated by galvanostatic cycling, results showed maximum areal capacity values of 1.97, 2.69, and 4.34 mA h cm–2 at a charge/discharge current of 6.25mA cm–2, for the as-deposited materials at 25, 60 and 95 °C, respectively. The specific power of the EC reached up to 19 kW kg–1 for the EC obtained material at 60 °C, with a specific energy of 2.8 W h kg–1. The maximum specific energy was reached at a current density of 6.25 mA cm−2, with a value of 10.79 W h kg–1 for the EC at 60 °C. These results offer some insight into how the morphology and composition of thin films can be tuned by the electrochemical synthesis temperature, yielding different electrochemical performances and areal capacity behaviors.
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7
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Zhang WD, Yan X, Li T, Liu Y, Fu QT, Gu ZG. Metal-organic layer derived metal hydroxide nanosheets for highly efficient oxygen evolution. Chem Commun (Camb) 2019; 55:5467-5470. [PMID: 31011731 DOI: 10.1039/c9cc01808e] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A series of metal hydroxide nanosheets have been fabricated from metal-organic layers (MOLs) through a conformal conversion process. Significantly, the MOL-derived Fe(OH)3 with an ultrathin layer structure exhibited enhanced alkaline oxygen evolution with a low overpotential of 271 mV at a current density of 10 mA cm-2.
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Affiliation(s)
- Wen-Da Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China.
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8
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Electrochemical energy storage of silver and silver oxide thin films in an aqueous NaCl electrolyte. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.10.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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9
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Synthesis of Honeycomb-Like Co₃O₄ Nanosheets with Excellent Supercapacitive Performance by Morphological Controlling Derived from the Alkaline Source Ratio. MATERIALS 2018; 11:ma11091560. [PMID: 30158510 PMCID: PMC6165064 DOI: 10.3390/ma11091560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 02/07/2023]
Abstract
Honeycomb-like Co3O4 nanosheets with high specific surface area were successfully synthesized on porous nickel foam by the facile hydrothermal method followed by an annealing treatment (300 °C), which were used as high-performance supercapacitor electrodes. The effects of the mole ratio of hexamethylenetetramine (HMT) and Co(NO3)2 (1:1, 2:1, 3:1, 4:1, 5:1 and 6:1) as the reactants on the morphological evolution and electrochemical performance of the electrodes were investigated in detail. X-ray diffractometry (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM) were applied to characterize the structure and morphology of the products. The electrochemical performance was measured by cyclic voltammetry (CV) and galvanostatic charge/discharge. The mole ratio of HMT and Co(NO3)2 produced a significant effect on the morphological evolution of Co3O4. The morphological evolution of Co3O4 with the increase in the mole ratio was followed: the nanosheets accompanied with a large number of spherical nanoparticles → the formation of some strip-like particles due to the agglomeration of spherical nanoparticles → the formation of new nanosheets resulting from the growth of strip-like particles → the formation of coarse flower-like particles owing to the connection among the nanosheets → the nanosheets gradually covered with flower-like particles. Accompanied with the change, the specific surface area was increased firstly, and then decreased. A maximum was obtained at a HMT and Co(NO3)2 mole ratio of 4:1. The evolution in morphology of Co3O4 was responsible for the change in electrochemical performance of the electrode. The specific capacitance value of the electrode prepared at a HMT and Co(NO3)2 mole ratio of 4:1 was highest (743.00 F·g−1 at 1 A·g−1 in the galvanostatic charge/discharge test). The similar result was also observed in the CV test with a scanning rate of 5 mV·s−1. Moreover, the electrode also demonstrated an excellent cyclic performance, in which about 97% of the initial specific capacitance remained at 1 A·g−1 for 500 cycles in the galvanostatic charge/discharge test. This excellent electrochemical performance was ascribed to high specific surface area of Co3O4 nanosheets that provide added channels and space for the ions transportation.
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10
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Cendrowski K, Zenderowska A, Bieganska A, Mijowska E. Graphene nanoflakes functionalized with cobalt/cobalt oxides formation during cobalt organic framework carbonization. Dalton Trans 2018; 46:7722-7732. [PMID: 28561843 DOI: 10.1039/c7dt01048f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this contribution, we present the synthesis and carbonization mechanism of metal-organic frameworks (MOFs) based on cobalt and terephthalic acid, with detailed attention to the carbonization mechanism of cobalt-based organic frameworks. The evolution of the unique morphology of carbonized cobalt organic frameworks induced by temperature allows the synthesis of a hybrid of multi-layered carbon structures with metal and metal oxide nanoparticles placed between them. The formation of various phases and diameter distributions of cobalt nanoparticles resulted in the partial degradation of carbon structure and exfoliation. Presented data describe the connection between cobalt particle oxidation and carboreduction with the phenomenon of metal particle agglomeration. The presented study allows us to select carbonization conditions in order to obtain the desired cobalt crystalline structure on the graphene flakes from cobalt-based MOFs.
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Affiliation(s)
- Krzysztof Cendrowski
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Poland.
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11
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M. B, S. B. On the Development of Hierarchical Nanostructures of Graphene-Zinc antimonate as Inexpensive Electrode Materials for Supercapacitors. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Bagavathi M, Dinesh B, Saraswathi R. A Facile One-Step Electrophoretic Deposition of Co−Ni-Layered Double Hydroxide Nanosheets for a High Performance Supercapacitor. ChemistrySelect 2017. [DOI: 10.1002/slct.201701545] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Muniyandi Bagavathi
- Department of Materials Science; School of Chemistry; Madurai Kamaraj University; Madurai- 625021 India.Phone: +91 452 2458247Fax: +91 452 2459181
| | - Bose Dinesh
- Department of Materials Science; School of Chemistry; Madurai Kamaraj University; Madurai- 625021 India.Phone: +91 452 2458247Fax: +91 452 2459181
- Nano and Bioelectrochemistry Research Laboratory, Department of Chemistry; School of Advanced Sciences; Vellore Institute of Technology University; Vellore- 632014 Tamil Nadu, India
| | - Ramiah Saraswathi
- Department of Materials Science; School of Chemistry; Madurai Kamaraj University; Madurai- 625021 India.Phone: +91 452 2458247Fax: +91 452 2459181
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13
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Gaikar PS, Navale ST, Gaikwad SL, Al-Osta A, Jadhav VV, Arjunwadkar PR, Naushad M, Mane RS. Pseudocapacitive performance of a solution-processed β-Co(OH) 2 electrode monitored through its surface morphology and area. Dalton Trans 2017; 46:3393-3399. [PMID: 28239712 DOI: 10.1039/c6dt04581b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, beta-cobalt hydroxide (β-Co(OH)2) electrodes of various nanostructures and surface areas, viz. nano-rhombuses (NRs), nano-plates (NPs), and nano-grass (NGs), have been synthesized directly onto a stainless-steel (SS) substrate using a simple, economical and binder-free chemical solution-process, utilizing three cobalt precursor salts, i.e. cobalt acetate, cobalt chloride, and cobalt nitrate, respectively. Structural elucidation proves the crystallite size, type and phase-purity of β-Co(OH)2, whereas the surface morphology analysis supports the evolution of the above mentioned nanostructures of various surface areas. The electrochemical pseudocapacitor performance investigation demonstrates a specific capacitance (Sc) of 367 F g-1 at 1 mA cm-2 for the NP-type morphology, which is higher than that that displayed by the other morphologies. This change in Sc value is attributed to different charge transfer resistance values, which have been obtained from electrochemical impedance spectroscopy spectra. Finally, we attempt to correlate the relationship between the surface morphology, i.e. surface area, and the charge transfer resistance with the obtained specific capacitance value of the respective electrode.
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Affiliation(s)
- P S Gaikar
- Department of Physics, Institute of Science, Nagpur, 440008, MS, India
| | - S T Navale
- Nanshan District Key Lab for Biopolymers and Safety Evaluation, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong, PR China
| | - S L Gaikwad
- Centre for Nanomaterials & Energy Devices, School of Physical Sciences, SRTM University, 431606, Nanded, India
| | - Ahmed Al-Osta
- Centre for Nanomaterials & Energy Devices, School of Physical Sciences, SRTM University, 431606, Nanded, India
| | - V V Jadhav
- Centre for Nanomaterials & Energy Devices, School of Physical Sciences, SRTM University, 431606, Nanded, India
| | - P R Arjunwadkar
- Department of Physics, Institute of Science, Nagpur, 440008, MS, India
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, Bld#5, Riyadh, Saudi Arabia.
| | - Rajaram S Mane
- Centre for Nanomaterials & Energy Devices, School of Physical Sciences, SRTM University, 431606, Nanded, India and Department of Chemistry, College of Science, King Saud University, Bld#5, Riyadh, Saudi Arabia.
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14
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Kohila rani K, Devasenathipathy R, Wang SF, Subramanian KS. Highly Sensitive Hydrazine Sensor Based on Co(OH)2Nanoflakes Electrochemically Deposited on MWCNTs. ELECTROANAL 2016. [DOI: 10.1002/elan.201600674] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Karuppasamy Kohila rani
- Department of Materials and Mineral Resources Engineering; National Taipei University of Technology; Taipei Taiwan
| | - Rajkumar Devasenathipathy
- Department of Materials and Mineral Resources Engineering; National Taipei University of Technology; Taipei Taiwan
| | - Sea-Fue Wang
- Department of Materials and Mineral Resources Engineering; National Taipei University of Technology; Taipei Taiwan
| | - K. Sundara Subramanian
- Department of mechanical engineering; Velammal college of engineering and technology; Madurai India
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15
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High-performance asymmetric supercapacitors based on cobalt chloride carbonate hydroxide nanowire arrays and activated carbon. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.194] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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He S, Li Z, Wang J, Wen P, Gao J, Ma L, Yang Z, Yang S. MOF-derived NixCo1−x(OH)2 composite microspheres for high-performance supercapacitors. RSC Adv 2016. [DOI: 10.1039/c6ra03992h] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
NixCo1−x(OH)2 composite microspheres are successfully synthesized with the assistance of alkali solution by employing a bimetallic Co–Ni–MOF as both the precursor and the self-sacrificing template, demonstrating excellent electrochemical performance.
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Affiliation(s)
- Shuhua He
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
| | - Zhangpeng Li
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
| | - Jinqing Wang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
| | - Ping Wen
- Department of Chemistry and Chemical Engineering
- Baoji University of Arts and Sciences
- Baoji
- P.R. China
| | - Jiechang Gao
- College of Materials Science and Engineering
- Lanzhou University of Technology
- Lanzhou 730050
- P.R. China
| | - Limin Ma
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
| | - Zhigang Yang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
| | - Shengrong Yang
- State Key Laboratory of Solid Lubrication
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou 730000
- P.R. China
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17
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Template-free hydrothermal synthesis of nickel cobalt hydroxide nanoflowers with high performance for asymmetric supercapacitor. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.02.095] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Vinothbabu P, Elumalai P. Supercapacitor performances of polyethylene glycol-intercalated Co(OH)2 nanoflakes by potentiodynamic deposition. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2684-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Microwave-assisted synthesis of spherical β-Ni(OH) 2 superstructures for electrochemical capacitors with excellent cycling stability. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.07.025] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Li C, Zhang X, Yu P, Zhang H, Sun X, Ma Y. Soft template-assisted synthesis of single crystalline β-cobalt hydroxide with distinct morphologies. CrystEngComm 2014. [DOI: 10.1039/c4ce00164h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Cheng JP, Zhang J, Liu F. Recent development of metal hydroxides as electrode material of electrochemical capacitors. RSC Adv 2014. [DOI: 10.1039/c4ra06738j] [Citation(s) in RCA: 130] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Recent research on electrochemical capacitors using transition metal hydroxides as electrode materials is reviewed.
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Affiliation(s)
- J. P. Cheng
- Department of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province
- Zhejiang University
- Hangzhou 310027, P.R. China
| | - J. Zhang
- Department of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province
- Zhejiang University
- Hangzhou 310027, P.R. China
| | - F. Liu
- Department of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province
- Zhejiang University
- Hangzhou 310027, P.R. China
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22
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Li C, Zhang X, Wang K, Zhang H, Sun X, Ma Y. Dandelion-like cobalt hydroxide nanostructures: morphological evolution, soft template effect and supercapacitive application. RSC Adv 2014. [DOI: 10.1039/c4ra10393a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile one-pot water bath method has been proposed to synthesize cobalt hydroxide (Co(OH)2) nanodandelions with polyvinyl pyrrolidone (PVP) as soft template.
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Affiliation(s)
- Chen Li
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
| | - Xiong Zhang
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
| | - Kai Wang
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
| | - Haitao Zhang
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
| | - Xianzhong Sun
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
| | - Yanwei Ma
- Institute of Electrical Engineering
- Chinese Academy of Sciences
- Beijing, People's Republic of China
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Conformal transformation of [Co(bdc)(DMF)] (Co-MOF-71, bdc = 1,4-benzenedicarboxylate, DMF = N,N-dimethylformamide) into porous electrochemically active cobalt hydroxide. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2012.10.039] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Li HB, Liu P, Liang Y, Xiao J, Yang GW. Amorphous cobalt hydroxide nanostructures and magnetism from green electrochemistry. RSC Adv 2013. [DOI: 10.1039/c3ra44355h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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