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Alanazi AK, Senthil Kumar P, Ramya M, Abo-Dief HM, Rangasamy G. Bifunctional electrode of bismuth tungsten for electrochemical sensing applications. CHEMOSPHERE 2023; 334:139014. [PMID: 37224979 DOI: 10.1016/j.chemosphere.2023.139014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/09/2023] [Accepted: 05/21/2023] [Indexed: 05/26/2023]
Abstract
A co-precipitation technique has been used to prepare Bismuth tungstate nanoparticles (Bi2WO6) for electrochemical capacitors and electrochemical sensing of Ascorbic acid (AA). Using a scanning rate of 10 mV s -1, the electrode was performed as the pseudocapacitance behavior and the specific capacitance to be up to 677 Fg -1 at 1 A/g. Bi2WO6 versus Glassy carbon electrode (GCE) was also used to study the behavior of the Bi2WO6 modified electrodes in detecting ascorbic acid. This electrochemical sensor shows excellent electrocatalytic performance when ascorbic acid is present, as determined by differential pulse voltammetry. In solution, ascorbic acid diffuses to an electrode surface and controls its surface properties. Based on the results from the investigation, the sensor showed a detection sensitivity of 0.26 mM/mA, and a limit of detection (LOD) of 77.85 mM. It is clear from these results that Bi2WO6 may find application as an electrode material for supercapacitors and glucose sensors.
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Affiliation(s)
- Abdullah K Alanazi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.
| | - M Ramya
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
| | - Hala M Abo-Dief
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Gayathri Rangasamy
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
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2
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Balqis N, Mohamed Jan B, Simon Cornelis Metselaar H, Sidek A, Kenanakis G, Ikram R. An Overview of Recycling Wastes into Graphene Derivatives Using Microwave Synthesis; Trends and Prospects. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16103726. [PMID: 37241354 DOI: 10.3390/ma16103726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023]
Abstract
It is no secret that graphene, a two-dimensional single-layered carbon atom crystal lattice, has drawn tremendous attention due to its distinct electronic, surface, mechanical, and optoelectronic properties. Graphene also has opened up new possibilities for future systems and devices due to its distinct structure and characteristics which has increased its demand in a variety of applications. However, scaling up graphene production is still a difficult, daunting, and challenging task. Although there is a vast body of literature reported on the synthesis of graphene through conventional and eco-friendly methods, viable processes for mass graphene production are still lacking. This review focuses on the variety of unwanted waste materials, such as biowastes, coal, and industrial wastes, for producing graphene and its potential derivatives. Among the synthetic routes, the main emphasis relies on microwave-assisted production of graphene derivatives. In addition, a detailed analysis of the characterization of graphene-based materials is presented. This paper also highlights the current advances and applications through the recycling of waste-derived graphene materials using microwave-assisted technology. In the end, it would alleviate the current challenges and forecast the specific direction of waste-derived graphene future prospects and developments.
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Affiliation(s)
- Nuralmeera Balqis
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Badrul Mohamed Jan
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | | | - Akhmal Sidek
- Petroleum Engineering Department, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
| | - George Kenanakis
- Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, N. Plastira 100, Vasilika Vouton, GR-700 13 Heraklion, Crete, Greece
| | - Rabia Ikram
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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3
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Sulka GD. Electrochemistry of Thin Films and Nanostructured Materials. Molecules 2023; 28:molecules28104040. [PMID: 37241782 DOI: 10.3390/molecules28104040] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
In the last few decades, the development and use of thin films and nanostructured materials to enhance physical and chemical properties of materials has been common practice in the field of materials science and engineering. The progress which has recently been made in tailoring the unique properties of thin films and nanostructured materials, such as a high surface area to volume ratio, surface charge, structure, anisotropic nature, and tunable functionalities, allow expanding the range of their possible applications from mechanical, structural, and protective coatings to electronics, energy storage systems, sensing, optoelectronics, catalysis, and biomedicine. Recent advances have also focused on the importance of electrochemistry in the fabrication and characterization of functional thin films and nanostructured materials, as well as various systems and devices based on these materials. Both cathodic and anodic processes are being extensively developed in order to elaborate new procedures and possibilities for the synthesis and characterization of thin films and nanostructured materials.
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Affiliation(s)
- Grzegorz Dariusz Sulka
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30387 Krakow, Poland
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4
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Gao Y, Lei P, Zhang S, Liu H, Hu C, Kou Z, Wang J, Cai G. A layer-stacked NiO nanowire/nanosheet homostructure for electrochromic smart windows with ultra-large optical modulation. NANOSCALE 2023; 15:8685-8692. [PMID: 37128954 DOI: 10.1039/d3nr01211e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The structural engineering of active materials at the nanoscale level is crucial to improving the performance of electrochromic devices. However, an insufficient structural design inevitably results in limited electron/ion transportation and inadequate electrochromic performance. Herein, a new type of layer-stacked nanowire/nanosheet homostructure is proposed for enhancing the electrochromic properties of transition metal oxide films. Benefiting from the one-pot feature integration of nanowire and nanosheet structures, the NiO film with a unique homostructure delivers ultra-large optical modulation up to 93.4% at 550 nm and a high coloration efficiency of 72.1 cm2 C-1 in comparison with NiO-based materials. In addition, the film maintains 91% of its optical modulation over 1000 cycles of coloration and bleaching processes. Furthermore, the high performance of the device was verified by integrating the NiO film with the TiO2 ion storage layer in assembled smart windows with a dual function of electrochromic and energy storage. As a proof of concept, the integration of solar cells with electrochromic devices demonstrates the great significance of self-powered smart windows for energy-saving. To this end, such a strategy of structural design for electrochromic films would offer a distinctive pathway toward studying high-performance electrochromic systems.
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Affiliation(s)
- Yi Gao
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Pengyang Lei
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Siyu Zhang
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Huanhuan Liu
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Chengyu Hu
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Zhu Kou
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Jinhui Wang
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
| | - Guofa Cai
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China.
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5
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Shah MM, Fatema M, Ansari DA, Gupta DK, Rather MUD. Tuning the structural, magnetic, and electrochemical properties of Mo-doped NiO nanostructures prepared by coprecipitation method. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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6
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Yun TY, Chandler BD. Surface Hydroxyl Chemistry of Titania- and Alumina-Based Supports: Quantitative Titration and Temperature Dependence of Surface Brønsted Acid-Base Parameters. ACS APPLIED MATERIALS & INTERFACES 2023; 15:6868-6876. [PMID: 36695465 DOI: 10.1021/acsami.2c20370] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Surface hydroxyl groups on metal oxides play significant roles in catalyst synthesis and catalytic reactions. Despite the importance of surface hydroxyls in broader material applications, quantitative measurements of surface acid-base properties are not regularly reported. Here, we describe direct methods to quantify fundamental properties of surface hydroxyls on several titania- and alumina-based supports. Comparing commercially available anatase, rutile, P25, and P90 titania, thermogravimetric analysis (TGA) indicated that the total surface hydroxyl density varied by a factor of 2, and each surface hydroxyl is associated with approximately one weakly adsorbed water molecule. Proton-exchange site densities, determined at 25 °C with slurry acid-base titrations, led to several conclusions: (i) the intrinsic acidity/basicity of surface hydroxyls were similar regardless of the titania source; (ii) differences in the surface isoelectric point (IEP) were primarily attributable to differences in the surface concentration of acid and base sites; (iii) rutile has a higher surface concentration of basic hydroxyls, leading to a higher IEP; and (iv) P25 and P90 titania have slightly higher surface concentrationsof acidic hydroxyls relative to anatase or rutile. Temperature effects on surface acid-base properties are rarely reported yet are significant: from 5 to 65 °C, IEP values change by roughly one pH unit. The IEP changes were associated with large changes to the intrinsic acid-base equilibrium constants over this temperature range, rather than changes in the composition or concentration of the surface sites.
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Affiliation(s)
- Tae Yong Yun
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
| | - Bert D Chandler
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania16802, United States
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania16802, United States
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7
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Huang Z, Li J, Chen X, Yang Q, Zeng X, Bai R, Wang L. Photothermal Sensitive 3D Printed Biodegradable Polyester Scaffolds with Polydopamine Coating for Bone Tissue Engineering. Polymers (Basel) 2023; 15:polym15020381. [PMID: 36679260 PMCID: PMC9861029 DOI: 10.3390/polym15020381] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
Biodegradable scaffolds with photothermal effects and customizable pore structures are a hot topic of research in the field of bone repair. In this study, we prepared porous scaffolds using poly(lactic acid) (PLA) as the raw material and customized the pore structure with 3D printing technology. First, we investigated the effect of pore structure on the mechanical properties of this 3D PLA scaffold. Subsequently, the optimally designed PLA scaffolds were coated with PDA to enhance their hydrophilicity and bioactivity. XRD (X-ray diffraction), FTIR (Fourier transform infrared spectroscopy) and EDS (Energy dispersive spectroscopy) results indicated that PDA was successfully coated on the surface of PLA scaffolds. SEM (Scanning electron microscopy) micrographs showed that the surface of the PDA/PLA scaffolds became rough. WCA (water contact angle) confirmed that the material has enhanced hydrophilic properties. PDA/PLA scaffolds exhibit a tunable photothermal effect under NIR (near infrared) irradiation. The 3D-printed PLA/PDA scaffolds have remarkable potential as an alternative material for repairing bone defects.
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Affiliation(s)
- Zuoxun Huang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Junfeng Li
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
- Correspondence: (J.L.); (R.B.); (L.W.)
| | - Xiaohu Chen
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Qing Yang
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Xiyang Zeng
- College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
| | - Ruqing Bai
- State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China
- Correspondence: (J.L.); (R.B.); (L.W.)
| | - Li Wang
- Department of Biomedical Engineering, School of Big Health and Intelligent Engineering, Chengdu Medical College, Chengdu 610500, China
- Correspondence: (J.L.); (R.B.); (L.W.)
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8
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Gaikar PS, Kadu KS, Tehare KK, Wadhawa GC, Mahmood SH, Lambat TL. Recent developments in polypyrrole/manganese oxide-based nanocomposites for thin film electrodes in supercapacitors: a minireview. NANOSCALE ADVANCES 2022; 4:5245-5252. [PMID: 36540118 PMCID: PMC9724607 DOI: 10.1039/d2na00654e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 11/07/2022] [Indexed: 06/17/2023]
Abstract
This review article highlights the recent developments in the synthesis and electrochemical performance of polypyrrole/manganese oxide thin-film electrodes synthesized by various chemical methods for supercapacitor applications. In the class of conducting polymers for electrode applications, polypyrrole (Ppy) is considered an important polymer due to its low cost and abundance. Ppy's polymeric composition and structural properties, however, pose stability concerns and have a drawback of a short life cycle over long-term charge-discharge processes, limiting its potential for industrial and commercial utilization. Recently, manganese oxide (MnO2) has been actively explored as a supercapacitor electrode material due to its low cost, high theoretical specific capacitance and abundance. Ppy/MnO2 thin film electrodes revealed high specific capacitance and stability, making them excellent candidates for next-generation supercapacitor electrode materials.
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Affiliation(s)
- Paresh S Gaikar
- Department of Physics, Rayat Shikshan Sanstha's, Karmaveer Bhaurao Patil College Vashi Navi Mumbai 410206 Maharashtra India
| | - Kedar S Kadu
- Department of Physics, Rayat Shikshan Sanstha's, Karmaveer Bhaurao Patil College Vashi Navi Mumbai 410206 Maharashtra India
| | - Kailas K Tehare
- Department of Physics, Dr. Ajeenkey D. Y. Patil School of Engineering Lohegaon Pune 412105 Maharashtra India
| | - Gurumeet C Wadhawa
- Department of Chemistry, Rayat Shikshan Sanstha's, Karmaveer Bhaurao Patil College Vashi Navi Mumbai 410206 Maharashtra India
| | - Sami H Mahmood
- Department of Physics, The University of Jordan Amman 11942 Jordan
| | - Trimurti L Lambat
- Department of Chemistry, Manoharbhai Patel College of Arts, Commerce & Science Deori 441901 Dist-Gondia Maharashtra India
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9
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Park BH, Kim T, Park H, Sohn Y, Shin J, Kang M. Electrochemical Performance of Layer-Structured Ni 0.8Co 0.1Mn 0.1O 2 Cathode Active Materials Synthesized by Carbonate Co-Precipitation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3610. [PMID: 36296800 PMCID: PMC9611263 DOI: 10.3390/nano12203610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/05/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
The layered Ni-rich NiCoMn (NCM)-based cathode active material Li[NixCo(1-x)/2Mn(1-x)/2]O2 (x ≥ 0.6) has the advantages of high energy density and price competitiveness over an LiCoO2-based material. Additionally, NCM is beneficial in terms of its increasing reversible discharge capacity with the increase in Ni content; however, stable electrochemical performance has not been readily achieved because of the cation mixing that occurs during its synthesis. In this study, various layer-structured Li1.0[Ni0.8Co0.1Mn0.1]O2 materials were synthesized, and their electrochemical performances were investigated. A NiCoMnCO3 precursor, prepared using carbonate co-precipitation with Li2CO3 as the lithium source and having a sintering temperature of 850 °C, sintering time of 25 h, and metal to Li molar ratio of 1.00-1.05 were found to be the optimal parameters/conditions for the preparation of Li1.0[Ni0.8Co0.1Mn0.1]O2. The material exhibited a discharge capacity of 160 mAhg-1 and capacity recovery rate of 95.56% (from a 5.0-0.1 C-rate).
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Affiliation(s)
- Byung Hyun Park
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan 38541, Korea
| | - Taeseong Kim
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan 38541, Korea
| | - Hyerim Park
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan 38541, Korea
| | - Youngku Sohn
- Department of Chemistry, Chungnam National University, Daejeon 34134, Korea
| | - Jongmin Shin
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan 38541, Korea
| | - Misook Kang
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan 38541, Korea
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10
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Zhao B. Three-Dimensional Hybrid Nanostructures of Fe3O4 Nanoparticles/Vertically-Aligned Carbon Nanotubes for High-Performance Supercapacitors. ELECTROCHEM 2022; 3:507-519. [DOI: 10.3390/electrochem3030035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
A three-dimensional (3D) hybrid nanostructure of Fe3O4 nanoparticles uniformly anchored on vertically-aligned carbon nanotubes (VACNTs) was fabricated by a facile two-step method. Assisted by supercritical carbon dioxide (SCCO2), the Fe precursor was firstly absorbed on CNT surface and then transformed into Fe3O4 nanoparticles by vacuum thermal annealing. Owing to the synergetic effects of well-distributed Fe3O4 nanoparticles (~7 nm) and highly conductive VACNTs, the hybrid electrode exhibits a high specific capacitance of 364.2 F g−1 at 0.5 A g−1 within the potential range from −0.9 to +0.1 V in Na2SO3 electrolyte and an excellent cycling stability of 84.8% capacitance retention after 2000 cycles at a current density of 4 A/g. This 3D hybrid architecture consisting of aligned CNTs and pseudocapacitive metal oxide may be a promising electrode for high-performance supercapacitors.
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11
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Islam S, Mia MM, Shah SS, Naher S, Shaikh MN, Aziz MA, Ahammad AJS. Recent Advancements in Electrochemical Deposition of Metal-Based Electrode Materials for Electrochemical Supercapacitors. CHEM REC 2022; 22:e202200013. [PMID: 35313076 DOI: 10.1002/tcr.202200013] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/07/2022] [Accepted: 03/07/2022] [Indexed: 12/11/2022]
Abstract
The demand for energy storage devices with high energy and power densities has increased tremendously in this rapidly growing world. Conventional capacitors, fuel cells, and lithium-ion batteries have been used as energy storage devices for the long term. However, supercapacitors are one of the most promising energy storage devices because of their high specific capacitance, high power density, and longer cycle life. Recent research has focused on synthesizing transition-metal oxides/hydroxides, carbon materials, and conducting polymers as supercapacitor electrode materials. The performance of supercapacitors can be improved by altering electrolytes, electrode materials, current collectors, experimental temperatures, and film thickness. Thousands of papers on supercapacitors have already been published, reflecting the significance and elucidating how much demanding such energy storage devices for this fast-growing generation. This review aims to illustrate the electrode materials loaded on various conductive substrates by electrochemical deposition employed for supercapacitors to provide broad knowledge on synthetic pathways, which will pave the way for future research. We also discussed the basic parameters involved in supercapacitor studies and the advantages of the electrochemical deposition techniques through literature analysis. Finally, future trends and directions on exploring metals/metal composites toward designing and constructing viable, high-class, and even newly featured flexible energy storage materials, electrodes, and systems are presented.
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Affiliation(s)
- Santa Islam
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - Md Mithu Mia
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - Syed Shaheen Shah
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia.,Physics Department, King Fahd University of Petroleum & Minerals, KFUPM Box 5047, Dhahran, 31261, Saudi Arabia
| | - Shamsun Naher
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
| | - M Nasiruzzaman Shaikh
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Md Abdul Aziz
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia.,K.A.CARE Energy Research & Innovation Center, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - A J Saleh Ahammad
- Department of Chemistry, Jagannath University, Dhaka, 1100, Bangladesh
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12
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Keshari AS, Dubey P. Interfacially coupled thin sheet-like NiO/NiMoO 4 nanocomposites synthesized by a simple reflux method for excellent electrochemical performance. Dalton Trans 2022; 51:3992-4009. [PMID: 35174381 DOI: 10.1039/d1dt04198c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein, hierarchical sheet-like assemblies of interfacially coupled NiO/NiMoO4 (NNMO) nanocomposites are prepared by a simple and cost-effective one-step aqueous reflux method followed by post-thermal treatment. The reaction time is optimized for a high precursor yield and the homogeneity of the final product. The fabricated electrodes with varying amounts of active material and conducting carbon show better electrochemical activity for 50 : 50 weight ratio combinations as extrinsic pseudocapacitors. The optimized NNMO-3 electrode (obtained from the Ni-Mo hydroxide precursor during the 10 h reaction time) exhibits superior performance among all the tested nanocomposite electrodes like a high specific capacity of 649.8 C g-1 (1624.5 F g-1) and 73.5% retention of capacity after 2200 cycles at a specific current of 1.0 A g-1 along with satisfactory rate capability (42.5% retention after a ten-times increment in specific current), which may be attributed to the abundant electroactive sites due to the high bulk as well as electrochemically active surface area, mesoporous structure, and synergistic coupling between the optimum compositions of NiO and NiMoO4 within the sheet-like networks. Moreover, an aqueous asymmetric supercapacitor is assembled by employing NNMO-3 and activated carbon as the positive and negative electrodes, respectively, and exhibits a maximum specific capacity of 216.2 C g-1 (144.1 F g-1), specific energy of 45.0 W h kg-1 at a specific power of 750.0 W kg-1, promising rate capability of 58.5%, and good cycling stability with 86.2% capacitive retention after 2500 charge-discharge cycles. Based on the overall performance, we can infer that the NNMO-3 nanocomposite may be a promising electrode material for high-performance supercapacitor applications.
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Affiliation(s)
- Achal Singh Keshari
- Centre of Material Sciences, Institute of Interdisciplinary Studies (IIDS), University of Allahabad, Prayagraj-211002, U.P., India.
| | - Prashant Dubey
- Centre of Material Sciences, Institute of Interdisciplinary Studies (IIDS), University of Allahabad, Prayagraj-211002, U.P., India.
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13
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Kandpal S, Ghosh T, Rani C, Tanwar M, Sharma M, Rani S, Pathak DK, Bhatia R, Sameera I, Jayabalan J, Kumar R. Bifunctional Application of Viologen-MoS 2-CNT/Polythiophene Device as Electrochromic Diode and Half-Wave Rectifier. ACS MATERIALS AU 2022; 2:293-300. [PMID: 36855378 PMCID: PMC9888659 DOI: 10.1021/acsmaterialsau.1c00064] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A dual purpose solid state electrochromic diode has been fabricated using polythiophene (P3HT) and ethyl Viologen (EV), predoped with multiwalled carbon nanotubes (MWCNTs) and MoS2. The device has been designed by considering two important aspects, first, the complementary redox activity of P3HT and EV and second, the electron holding properties of MoS2 and MWCNTs. The latter is found to enhance the electrochromic performance of the solid state device. On the other hand, the complementary redox nature gives the asymmetric diodic I-V characteristic to the device which has been exploited to use the electrochromic device for rectification application. The MoS2 nanoflower and MWCNTs are synthesized by one-step hydrothermal and pyrolysis techniques and well characterized by scanning electron microscopy (SEM), X-ray analysis (XRD), and Raman spectroscopy. Electrochromic properties of the device have been studied in detail to reveal an improvement in device performance in terms of faster speed and high coloration efficiency and color contrast. In situ bias-dependent Raman spectroscopy has been performed to understand the operation mechanism of the electrochromic diode which reveals (bi-)polaron formation as a result of dynamic doping eventually leading to color change. A half-wave rectifier has been realized from the electrochromic diode which rectifies an AC voltage of frequency 1 Hz or less making it suitable for low frequency operation. The study opens a new possibility to design and fabricate multipurpose frequency selective electrochromic rectifiers.
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Affiliation(s)
- Suchita Kandpal
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Tanushree Ghosh
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Chanchal Rani
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Manushree Tanwar
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Meenu Sharma
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Sonam Rani
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Devesh K. Pathak
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India
| | - Ravi Bhatia
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - I. Sameera
- Department
of Physics, Guru Jambheshwar University
of Science & Technology, Hisar-125001, India
| | - Jesumony Jayabalan
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai-400094, India
| | - Rajesh Kumar
- Materials
and Device Laboratory, Department of Physics, Indian Institute of Technology Indore, Simrol-453552, India,Centre
for Advanced Electronics, Indian Institute
of Technology Indore, Simrol-453552, India,Centre
for Rural Development and Technology, Indian
Institute of Technology Indore, Simrol-453552, India,Centre for
Indian Scientific Knowledge Systems, Indian
Institute of Technology Indore, Simrol-453552, India,
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14
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He G, Wang L. Conductive Ni2P nanosheet arrays-carbon nanofibers as binder-free pseudocapacitive electrode materials. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Ye B, Zhou J, Cao X, Zhao Q, Zhang Y, Wang J. Scalable CNTs/NiCoSe 2 Hybrid Films for Flexible All-Solid-State Asymmetric Supercapacitors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53868-53876. [PMID: 34726382 DOI: 10.1021/acsami.1c15392] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The rapidly developing wearable flexible electronics makes the development of high-performance flexible energy storage devices, such as all-solid-state supercapacitors (SCs), particularly important. Herein, we report the fabrication of CNTs/NiCoSe2 hybrid films on carbon cloth (CC) through a facile co-electrodeposition method based on flexible electrodes for all-solid-state SCs. The NiCoSe2 sheets grown on CNTs uniformly with a diameter of 50-100 nm act as the active materials. The CNTs in the hybrid films act as the scaffold to offer more deposition sites for NiCoSe2 and provide a conductive network to facilitate the transfer of electrons. Moreover, the one-step electrodeposition process avoids the usage of any organic binders. Benefiting from the high intrinsic reactivity and unique 3D architecture, the obtained CNTs/NiCoSe2 electrode delivers high specific capacity (218.1 mA h g-1) and satisfactory durability (over 5000 cycles). Remarkably, the CNTs/NiCoSe2//AC flexible all-solid-state (FASS) ASC provides remarkable energy density (112.2 W h kg-1) within 0-1.7 V and maintains 98.1% of its initial capacity after 10,000 cycles. In addition, this flexible ASC device could be fabricated at a large scale (5 × 6 cm2), and the LED arrays (>3.7 V) can be easily lighted up by three ASCs in series, showing its potential practical application.
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Affiliation(s)
- Beirong Ye
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, People's Republic of China
| | - Jinglin Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, People's Republic of China
| | - Xianjun Cao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, People's Republic of China
| | - Qiang Zhao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, People's Republic of China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, People's Republic of China
| | - Yongqi Zhang
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, People's Republic of China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jinshu Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, People's Republic of China
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16
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Yu Z, Bai Y, Tsekouras G, Cheng Z. Recent advances in Ni‐Fe (Oxy)hydroxide electrocatalysts for the oxygen evolution reaction in alkaline electrolyte targeting industrial applications. NANO SELECT 2021. [DOI: 10.1002/nano.202100286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Affiliation(s)
- Zheyin Yu
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province School of Physics and Electronics Henan University Kaifeng 475004 PR China
| | - Ying Bai
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province School of Physics and Electronics Henan University Kaifeng 475004 PR China
| | - George Tsekouras
- Intelligent Polymer Research Institute and Australian Research Council Centre of Excellence for Electromaterials Science University of Wollongong North Wollongong New South Wales NSW 2500 Australia
| | - Zhenxiang Cheng
- Institute for Superconducting and Electronic Materials Australian Institute of Innovative Materials University of Wollongong North Wollongong New South Wales NSW 2500 Australia
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17
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Facile Synthesis of Coral Reef-Like ZnO/CoS2 Nanostructure on Nickel Foam as an Advanced Electrode Material for High-Performance Supercapacitors. ENERGIES 2021. [DOI: 10.3390/en14164925] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanocomposite electrodes receive much attention because of their excellent energy storage nature. Electrodes for supercapacitors have come a major source of interest. In this pursuit, the current work elucidates binder-free coral reefs resembling ZnO/CoS2 nanoarchitectures synthesized on the surface of Ni foams employing the cost-effective hydrothermal route. The Zno/CoS2 nanocomposite demonstrated excellent battery-type behavior, which can be employed for supercapcitor application. Various analyses were carried out in the current study, such as X-ray diffraction and high-resolution scanning electron microscopy, which allowed defining the crystalline nature and morphology of surface with ZnO/CoS2 nanoarchitectures. Electrochemical measures such as cyclic voltammetry, galvanostatic charge discharge, and potentiostatic impedance spectroscopy confirmed the battery-type behavior of the material. The synthesized precursors of binder-free ZnO/CoS2 nanostructures depicted an excellent specific capacity of 400.25 C·g−1 at 1 A·g−1, with a predominant cycling capacity of 88. 2% and retention holding of 68% at 10 A·g−1 and 2 A·g−1, even after 4000 cycles, representing an improvement compared to the pristine ZnO and CoS2 electroactive materials. Therefore, the electrochemical and morphological analyses suggest the excellent behavior of the ZnO/CoS2 nanoarchitectures, making them promising for supercapacitors.
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18
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Ling X, Zhang G, Long Z, Lu X, He Z, Li J, Wang Y, Zhang D. Core–shell structure γ-MnO2-PANI carbon fiber paper-based flexible electrode material for high-performance supercapacitors. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.04.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Mali D, Patil R, Patil A, Fulari V. Facile synthesis of NiO nanoflakes via hydrothermal route: Effect of urea concentration. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Abstract
ZnO has many technological applications which largely depend on its properties, which can be tuned by controlled synthesis. Ideally, the most convenient ZnO synthesis is carried out at room temperature in an aqueous solvent. However, the correct temperature values are often loosely defined. In the current paper, we performed the synthesis of ZnO in an aqueous solvent by varying the reaction and drying temperatures by 10 °C steps, and we monitored the synthesis products primarily by XRD). We found out that a simple direct synthesis of ZnO, without additional surfactant, pumping, or freezing, required both a reaction (TP) and a drying (TD) temperature of 40 °C. Higher temperatures also afforded ZnO, but lowering any of the TP or TD below the threshold value resulted either in the achievement of Zn(OH)2 or a mixture of Zn(OH)2/ZnO. A more detailed Rietveld analysis of the ZnO samples revealed a density variation of about 4% (5.44 to 5.68 gcm−3) with the synthesis temperature, and an increase of the nanoparticles’ average size, which was also verified by SEM images. The average size of the ZnO synthesized at TP = TD = 40 °C was 42 nm, as estimated by XRD, and 53 ± 10 nm, as estimated by SEM. For higher synthesis temperatures, they vary between 76 nm and 71 nm (XRD estimate) or 65 ± 12 nm and 69 ± 11 nm (SEM estimate) for TP = 50 °C, TD = 40 °C, or TP = TD = 60 °C, respectively. At TP = TD = 30 °C, micrometric structures aggregated in foils are obtained, which segregate nanoparticles of ZnO if TD is raised to 40 °C. The optical properties of ZnO obtained by UV-Vis reflectance spectroscopy indicate a red shift of the band gap by ~0.1 eV.
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21
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Ahmed R, Nabi G, Khalid NR, Ali F, Tanveer M. Controlled synthesis and enhanced electrochemical performance of tungsten doped NiO nano-sheets for supercapacitors. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01729-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Chakraborty S, Matson EM. Reductive silylation of polyoxovanadate surfaces using Mashima's reagent. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00920f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mechanistic insights into the reductive silylation of metal oxide surfaces.
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Affiliation(s)
- Sourav Chakraborty
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
| | - Ellen M. Matson
- Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
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23
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Poolakkandy RR, Menamparambath MM. Soft-template-assisted synthesis: a promising approach for the fabrication of transition metal oxides. NANOSCALE ADVANCES 2020; 2:5015-5045. [PMID: 36132034 PMCID: PMC9417152 DOI: 10.1039/d0na00599a] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/18/2020] [Indexed: 05/27/2023]
Abstract
The past few decades have witnessed transition metal oxides (TMOs) as promising candidates for a plethora of applications in numerous fields. The exceptional properties retained by these materials have rendered them of paramount emphasis as functional materials. Thus, the controlled and scalable synthesis of transition metal oxides with desired properties has received enormous attention. Out of different top-down and bottom-up approaches, template-assisted synthesis predominates as an adept approach for the facile synthesis of transition metal oxides, owing to its phenomenal ability for morphological and physicochemical tuning. This review presents a comprehensive examination of the recent advances in the soft-template-assisted synthesis of TMOs, focusing on the morphological and physicochemical tuning aided by different soft-templates. The promising applications of TMOs are explained in detail, emphasizing those with excellent performances.
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Affiliation(s)
| | - Mini Mol Menamparambath
- Department of Chemistry, National Institute of Technology Calicut Calicut-673601 Kerala India
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24
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Cherusseri J, Pandey D, Sambath Kumar K, Thomas J, Zhai L. Flexible supercapacitor electrodes using metal-organic frameworks. NANOSCALE 2020; 12:17649-17662. [PMID: 32820760 DOI: 10.1039/d0nr03549a] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Advancements in the field of flexible and wearable devices require flexible energy storage devices to cater their power demands. Metal-ion batteries (such as lithium-ion batteries, sodium-ion batteries, etc.) and electrochemical capacitors (also called supercapacitors or ultracapacitors) have achieved great interest in the recent past due to their superior energy storage characteristics like high power density and long cycle life. A major bottleneck of using metal-ion batteries in wearable devices is their lack of flexibility. Low power density, toxicity and flammability due to organic electrolytes inhibit them from safe on-body device applications. On the other hand, supercapacitors can be made with aqueous electrolytes, making them a safer alternative for wearable applications. Metal-organic frameworks (MOFs) are novel candidates as electrode materials due to their salient features such as large surface area, three-dimensional porous architecture, permeability to foreign entities, structural tailorability, etc. Though pristine MOFs suffer from poor intrinsic conductivity, this can be rectified by preparing composites with other electronically conducting materials. MOF-based electrodes are highly promising for flexible and wearable supercapacitors since they exhibit good energy and power densities. This review focuses on the new developments in the field of MOF-based composite electrodes for developing flexible supercapacitors.
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Affiliation(s)
- Jayesh Cherusseri
- Nanoscience Technology Center, University of Central Florida, Orlando, FL-32826, USA.
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25
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Das S, Diyali S, Vinothini G, Perumalsamy B, Balakrishnan G, Ramasamy T, Dharumadurai D, Biswas B. Synthesis, morphological analysis, antibacterial activity of iron oxide nanoparticles and the cytotoxic effect on lung cancer cell line. Heliyon 2020; 6:e04953. [PMID: 33005785 PMCID: PMC7511749 DOI: 10.1016/j.heliyon.2020.e04953] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/13/2020] [Accepted: 09/11/2020] [Indexed: 11/28/2022] Open
Abstract
Focusing on the huge importance associated in developing functional materials, this research study describes the synthesis, characterization of morphology, bactericidal activity and cytotoxic effect of iron oxide nanoparticles (IONPs). IONPs have been successfully fabricated through thermal decomposition of a diiron(III) complex precursor. The morphology of the nanoparticle has been delineated with different spectroscopic and analytic methods. Scanning and transmission electron microscopy (FE-SEM and HR-TEM) analyses estimate the cross linked porous structure of IONPs with an average size ~97 nm. Dynamic light scattering (DLS) study of IONPs determines the hydrodynamic diameter as 104 nm. The cytotoxic behavior of IONPs has been examined against human lung cancer cell line (A549) through different fluorescence staining studies which ensure the mode of apoptosis for cell death of A549. Furthermore, measurement of reactive oxygen species suggests the destruction of mitochondrial membrane of Staphylococcus aureus, leading to effective bactericidal propensity which holds a good promise for IONPs to become a clinically approved antibacterial agent.
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Affiliation(s)
- Subrata Das
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Sangharaj Diyali
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India
| | - Gopal Vinothini
- Department of Microbiology, Bharathidasan University, Tiruchirappalli 620 024, India
| | - Balaji Perumalsamy
- National Centre for Alternatives to Animal Experiments (NCAAE), Bharathidasan University, Tiruchirappalli 620 024, India
| | - Gowdhami Balakrishnan
- National Centre for Alternatives to Animal Experiments (NCAAE), Bharathidasan University, Tiruchirappalli 620 024, India
| | - Thirumurugan Ramasamy
- National Centre for Alternatives to Animal Experiments (NCAAE), Bharathidasan University, Tiruchirappalli 620 024, India
| | | | - Bhaskar Biswas
- Department of Chemistry, University of North Bengal, Darjeeling 734013, India
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26
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Hollow sphere nickel sulfide nanostructures-based enzyme mimic electrochemical sensor platform for lactic acid in human urine. Mikrochim Acta 2020; 187:468. [PMID: 32700244 DOI: 10.1007/s00604-020-04431-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/07/2020] [Indexed: 12/22/2022]
Abstract
An enzyme-free electrochemical sensor platform is reported based on hollow sphere structured nickel sulfide (HS-NiS) nanomaterials for the sensitive lactic acid (LA) detection in human urine. Hollow sphere nickel sulfide nanostructures directly grow on the nickel foam (NiF) substrate by using facile and one-step electrochemical deposition strategy towards the electrocatalytic lactic acid oxidation and sensing for the first time. The as-developed nickel sulfide nanostructured electrode (NiF/HS-NiS) has been successfully employed as the enzyme mimic electrode towards the enhanced electrocatalytic oxidation and detection of lactic acid. The NiF/HS-NiS electrode exhibits an excellent electrocatalytic activity and sensing ability with low positive potential (~ 0.52 V vs Ag/AgCl), catalytic current density (~ 1.34 mA), limit of detection (LOD) (0.023 μM), linear range from 0.5 to 88.5 μM with a correlation coefficient of R2 = 0.98, sensitivity (0.655 μA μM-1 cm-2), and selectivity towards the lactic acid owing to the ascription of high inherent electrical conductivity, large electrochemical active surface area (ECASA), high electrochemical active sites, and strong adsorption ability. The sensors developed in this work demonstrate the selectivity against potential interferences, including uric acid (UA), ascorbic acid (AA), paracetamol (PA), Mg2+, Na+, and Ca2+. Furthermore, the developed sensors show practicability by sensing lactic acid in human urine samples, suggesting that the HS-NiS nanostructures device has promising clinical diagnostic potential. Graphical abstract.
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27
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Wang WD, Zhang PP, Gao SQ, Wang BQ, Wang XC, Li M, Liu F, Cheng JP. Core-shell nanowires of NiCo 2O 4@α-Co(OH) 2 on Ni foam with enhanced performances for supercapacitors. J Colloid Interface Sci 2020; 579:71-81. [PMID: 32574730 DOI: 10.1016/j.jcis.2020.06.048] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/02/2020] [Accepted: 06/10/2020] [Indexed: 01/18/2023]
Abstract
The composites of NiCo2O4 with unique structures are extensively explored as promising electrodes. In this work, core-shell structured nanowires anchored on nickel foam are synthesized by the hydrothermal synthesis of NiCo2O4 as core and subsequent electrodeposition of α-Co(OH)2 as shell. The core-shell composites exhibit enhanced electrochemical performances ascribing to the synergistic reactions from both materials, showing higher specific capacitance than any single component. By changing the deposition time, the mass loading of α-Co(OH)2 can be easily controlled. The electrochemical performances of the hybrid electrodes are diverse with the mass loading of Co(OH)2. The optimized hybrid electrode with 3 mins electrodeposition exhibits the highest specific capacitance (1298 F g-1 at 1 A g-1) among all electrodes. The redox reaction is a main contributor to the total specific capacitance through electrochemical kinetics analysis. An asymmetric supercapacitor assembled by the optimized material as positive electrode and activated carbon as negative electrode can achieve a relatively high energy density of 39.7 Wh kg-1 at a power density of 387.5 W kg-1 (at 0.5 A g-1) in a voltage of 1.55 V.
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Affiliation(s)
- W D Wang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
| | - P P Zhang
- Ocean College, Zhejiang University, Zhoushan 316021, China
| | - S Q Gao
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
| | - B Q Wang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
| | - X C Wang
- Key Laboratory of Material Physics of Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - M Li
- Research Institute of Narada Power Source Co., Ltd, Hangzhou 311305, China
| | - F Liu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China
| | - J P Cheng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Zhejiang University, Hangzhou 310027, China.
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28
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Improved electrochemical performance of supercapacitors by utilizing ternary Pd-AC-doped NiO nanostructure as an electrode material. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04615-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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29
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Synthesis of a NiMoO4/3D-rGO Nanocomposite via Starch Medium Precipitation Method for Supercapacitor Performance. BATTERIES-BASEL 2020. [DOI: 10.3390/batteries6010005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper presents research on the synergistic effects of nickel molybdate and reduced graphene oxide as a nanocomposite for further development of energy storage systems. An enhancement in the electrochemical performance of supercapacitor electrodes occurs by synthesizing highly porous structures and achieving more surface area. In this work, a chemical precipitation technique was used to synthesize the NiMoO4/3D-rGO nanocomposite in a starch media. Starch was used to develop the porosities of the nanostructure. A temperature of 350 °C was applied to transform graphene oxide sheets to reduced graphene oxide and remove the starch to obtain the NiMoO4/3D-rGO nanocomposite with porous structure. The X-ray diffraction pattern of the NiMoO4 nano particles indicated a monoclinic structure. Also, the scanning electron microscope observation showed that the NiMoO4 NPs were dispersed across the rGO sheets. The electrochemical results of the NiMoO4/3D-rGO electrode revealed that the incorporation of rGO sheets with NiMoO4 NPs increased the capacity of the nanocomposite. Therefore, a significant increase in the specific capacity of the electrode was observed with the NiMoO4/3D-rGO nanocomposite (450 Cg−1 or 900 Fg−1) when compared with bare NiMoO4 nanoparticles (350 Cg−1 or 700 Fg−1) at the current density of 1 A g−1. Our findings show that the incorporation of rGO and NiMoO4 NP redox reactions with a porous structure can benefit the future development of supercapacitors.
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30
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Youssry SM, El-Hallag I, Kumar R, Kawamura G, Matsuda A, El-Nahass MN. Synthesis of mesoporous Co(OH)2 nanostructure film via electrochemical deposition using lyotropic liquid crystal template as improved electrode materials for supercapacitors application. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113728] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Petel BE, Matson EM. Oxygen-atom vacancy formation and reactivity in polyoxovanadate clusters. Chem Commun (Camb) 2020; 56:13477-13490. [DOI: 10.1039/d0cc05920j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Overview of recent work detailing oxygen-deficient polyoxovanadate clusters as models for reducible metal oxides: toward gaining a fundamental understanding the consequences of vacancy formation on metal oxide surfaces during catalysis.
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32
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Hwang J, Ejsmont A, Freund R, Goscianska J, Schmidt BVKJ, Wuttke S. Controlling the morphology of metal–organic frameworks and porous carbon materials: metal oxides as primary architecture-directing agents. Chem Soc Rev 2020; 49:3348-3422. [DOI: 10.1039/c9cs00871c] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We give a comprehensive overview of how the morphology control is an effective and versatile way to control the physicochemical properties of metal oxides that can be transferred to metal–organic frameworks and porous carbon materials.
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Affiliation(s)
- Jongkook Hwang
- Inorganic Chemistry and Catalysis
- Utrecht University
- Utrecht
- The Netherlands
| | - Aleksander Ejsmont
- Adam Mickiewicz University in Poznań
- Faculty of Chemistry
- 61-614 Poznań
- Poland
| | - Ralph Freund
- Chair of Solid State and Materials Chemistry
- Institute of Physics
- University of Augsburg
- 86159 Augsburg
- Germany
| | - Joanna Goscianska
- Adam Mickiewicz University in Poznań
- Faculty of Chemistry
- 61-614 Poznań
- Poland
| | | | - Stefan Wuttke
- BCMaterials
- Basque Center for Materials
- UPV/EHU Science Park
- 48940 Leioa
- Spain
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33
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Ambade RB, Koh KH, Ambade SB, Eom W, Noh SH, Koo CM, Kim SH, Han TH. Kinetically controlled low-temperature solution-processed mesoporous rutile TiO2 for high performance lithium-ion batteries. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.08.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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34
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Béjar J, Álvarez-Contreras L, Ledesma-García J, Arjona N, Arriaga L. Electrocatalytic evaluation of Co3O4 and NiCo2O4 rosettes-like hierarchical spinel as bifunctional materials for oxygen evolution (OER) and reduction (ORR) reactions in alkaline media. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113190] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Shinde PA, Seo Y, Ray C, Jun SC. Direct growth of WO3 nanostructures on multi-walled carbon nanotubes for high-performance flexible all-solid-state asymmetric supercapacitor. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.159] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Electrochemical synthesis of PPy composites with nanostructured MnOx, CoOx, NiOx, and FeOx in acetonitrile for supercapacitor applications. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.060] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Nwanya AC, Ndipingwi MM, Mayedwa N, Razanamahandry L, Ikpo CO, Waryo T, Ntwampe S, Malenga E, Fosso-Kankeu E, Ezema FI, Iwuoha EI, Maaza M. Maize (Zea mays L.) fresh husk mediated biosynthesis of copper oxides: Potentials for pseudo capacitive energy storage. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.186] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Shan M. Large‐scale production of nitrogen‐ and oxygen‐containing activated carbon microspheres for supercapacitors. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mingli Shan
- Department of Chemical Engineering, Zibo Vocational Institute Zibo China
- Key Laboratory of Marine Chemistry Theory and TechnologyMinistry of Education, Ocean University of China Qingdao China
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39
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40
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Sarac Oztuna FE, Yagci MB, Unal U. First‐Row Transition‐Metal Cations (Co
2+
, Ni
2+
, Mn
2+
, Fe
2+
) and Graphene (Oxide) Composites: From Structural Properties to Electrochemical Applications. Chemistry 2019; 25:3131-3140. [DOI: 10.1002/chem.201806309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Indexed: 01/19/2023]
Affiliation(s)
- F. Eylul Sarac Oztuna
- Department of Material Science and EngineeringKoç University Rumelifeneri Yolu 34450 Sariyer Istanbul Turkey
| | - M. Baris Yagci
- Koç University Surface Science and Technology Center (KUYTAM)Koç University Rumelifeneri Yolu 34450 Sariyer Istanbul Turkey
| | - Ugur Unal
- Department of Material Science and EngineeringKoç University Rumelifeneri Yolu 34450 Sariyer Istanbul Turkey
- Koç University Surface Science and Technology Center (KUYTAM)Koç University Rumelifeneri Yolu 34450 Sariyer Istanbul Turkey
- Department of ChemistryKoç University Rumelifeneri Yolu 34450 Sariyer Istanbul Turkey
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41
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Nickel cobaltite nanosheets coated on metal-organic framework-derived mesoporous carbon nanofibers for high-performance pseudocapacitors. J Colloid Interface Sci 2019; 534:312-321. [DOI: 10.1016/j.jcis.2018.09.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/11/2018] [Accepted: 09/11/2018] [Indexed: 11/18/2022]
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42
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Shen WX, Xu JM, Dai SG, Zhang ZF. A Porous and Conductive Graphite Nanonetwork Forming on the Surface of KCu 7S 4 for Energy Storage. Front Chem 2018; 6:555. [PMID: 30519556 PMCID: PMC6258969 DOI: 10.3389/fchem.2018.00555] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 10/29/2018] [Indexed: 11/13/2022] Open
Abstract
A flexible all-solid-state supercapacitor is fabricated by building a layer of porous and conductive nanonetwork on the surface of KCu7S4 nanowires supported on the carbon fiber fabric, where the porous and conductive nanonetwork is assembled by graphite nanoparticles. This porous graphite layer plays a key role in providing ion diffusion channels to access the KCu7S4 through the pores for electrochemical reactions and forming electron transport pathways from the graphite network to the electronic collector of the carbon fiber fabric. This flexible supercapacitor exhibits excellent electrochemical performance with high specific capacitance of 408 F g-1 at a current density of 0.5 A g-1 and high energy density of 36 Wh kg-1 at a power density of 201 W kg-1. Moreover, it is cost-effective, easy to scale up and environmentally friendly with high flexibility. Our investigation demonstrates that such a porous and conductive nanonetwork could be used to improve the charge storage efficiency for a wide range of electrode materials.
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Affiliation(s)
- Wei-Xia Shen
- Key Laboratory of Material Physics of Ministry of Education, Zhengzhou University, Zhengzhou, China
| | - Jun-Min Xu
- Key Laboratory of Material Physics of Ministry of Education, Zhengzhou University, Zhengzhou, China
| | - Shu-Ge Dai
- Key Laboratory of Material Physics of Ministry of Education, Zhengzhou University, Zhengzhou, China
| | - Zhuang-Fei Zhang
- Key Laboratory of Material Physics of Ministry of Education, Zhengzhou University, Zhengzhou, China
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43
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Hu Y, Wu Y, Wang J. Manganese-Oxide-Based Electrode Materials for Energy Storage Applications: How Close Are We to the Theoretical Capacitance? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802569. [PMID: 30118549 DOI: 10.1002/adma.201802569] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 06/05/2018] [Indexed: 06/08/2023]
Abstract
Of the transition metals, Mn has the greatest number of different oxides, most of which have a special tunnel structure that enables bulk redox reactions. The high theoretical capacitance and capacity results from a greater number of accessible oxidation states than other transition metals, wide potential window, and the high natural abundance make MnOx species promising electrode materials for energy storage applications. Although MnOx electrode materials have been intensely studied over the past decade, their electrochemical performance is still insufficient for practical applications. Currently, there is a trade-off between specific capacitance and loading mass. MnOx species have intrinsically poor electrical conductivity, and current structural designs are not sophisticated enough to accommodate enough redox-active sites. Recent studies have certainly made progress in increasing capacitance through making use of electrically conductive components and controlling the morphology of the MnOx species to expose more surface area. To increase the capacitance of MnOx electrodes to the largest extent without limiting loading mass, further structural design at the nanoscale and manipulation of the electrically conductive component are required. An ideal nanostructure is proposed to guide future research toward closing the gap between achieved and theoretical capacitance, without limiting the loading mass.
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Affiliation(s)
- Yating Hu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - Yue Wu
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - John Wang
- Department of Materials Science & Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
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44
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Lange K, Hördemann C, Schulz-Ruhtenberg M, Caro J. Porous Nickel Nano-Foam by Femtosecond Laser Structuring for Supercapacitor Application. ChemElectroChem 2018. [DOI: 10.1002/celc.201801152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Karsten Lange
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstr. 3 A D-30167 Hannover Germany
| | - Christian Hördemann
- Fraunhofer Institute for Laser Technology; Steinbachstr. 15 D-52074 Aachen Germany
| | | | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry; Leibniz University Hannover; Callinstr. 3 A D-30167 Hannover Germany
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45
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Layered double hydroxide-based core-shell nanoarrays for efficient electrochemical water splitting. Front Chem Sci Eng 2018. [DOI: 10.1007/s11705-018-1719-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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46
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Bazaka K, Baranov O, Cvelbar U, Podgornik B, Wang Y, Huang S, Xu L, Lim JWM, Levchenko I, Xu S. Oxygen plasmas: a sharp chisel and handy trowel for nanofabrication. NANOSCALE 2018; 10:17494-17511. [PMID: 30226508 DOI: 10.1039/c8nr06502k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Although extremely chemically reactive, oxygen plasmas feature certain properties that make them attractive not only for material removal via etching and sputtering, but also for driving and sustaining nucleation and growth of various nanostructures in plasma bulk and on plasma-exposed surfaces. In this minireview, a number of representative examples is used to demonstrate key mechanisms and unique capabilities of oxygen plasmas and how these can be used in present-day nano-fabrication. In addition to modification and functionalisation processes typical for oxygen plasmas, their ability to catalyse the growth of complex nanoarchitectures is emphasized. Two types of technologies based on oxygen plasmas, namely surface treatment without a change in the size and shape of surface features, as well as direct growth of oxide structures, are used to better illustrate the capabilities of oxygen plasmas as a powerful process environment. Future applications and possible challenges for the use of oxygen plasmas in nanofabrication are discussed.
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Affiliation(s)
- K Bazaka
- School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia.
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47
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Li M, Lei W, Yu Y, Yang W, Li J, Chen D, Xu S, Feng M, Li H. High-performance asymmetric supercapacitors based on monodisperse MnO nanocrystals with high energy densities. NANOSCALE 2018; 10:15926-15931. [PMID: 30113063 DOI: 10.1039/c8nr04541k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Monodisperse spherical MnO nanocrystals (NCs) with a size of 22.5 nm were synthesized by the thermal decomposition of manganese oleate in the presence of oleic acid and 1-octadecene. The as-synthesized MnO NCs show superior electrochemical performances with a specific capacitance of 736.4 F g-1 at a current density of 1 A g-1 and retain 93.3% of initial specific capacitance after 5000 cycles. The MnO NC electrode was successfully assembled in an asymmetric supercapacitor as the cathode with an activated carbon (AC) electrode as the anode. The as-fabricated device can demonstrate remarkable performance with an energy density of 44.2 W h kg-1, a power density of 900 W kg-1, and excellent cycling stability. This work provides a new direction for MnO nanomaterials towards high-performance energy storage devices.
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Affiliation(s)
- Menggang Li
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
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48
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Analysis of the effects of different carbon coating strategies on structure and electrochemical behavior of LiCoPO4 material as a high-voltage cathode electrode for lithium ion batteries. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.067] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Zhang X, He P, Zhang X, Li C, Liu H, Wang S, Dong F. Manganese hexacyanoferrate/multi-walled carbon nanotubes nanocomposite: Facile synthesis, characterization and application to high performance supercapacitors. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.04.129] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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50
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Narendra Kumar AV, Li Y, Yin S, Li C, Xue H, Xu Y, Li X, Wang H, Wang L. Mesoporous Co 3 O 4 Nanobundle Electrocatalysts. Chem Asian J 2018; 13:2093-2100. [PMID: 29808600 DOI: 10.1002/asia.201800651] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/25/2018] [Indexed: 11/10/2022]
Abstract
Tailoring metal oxide nanostructures with mesoporous architectures is vital to improve their electrocatalytic performance. Herein, we demonstrate the synthesis of 2D mesoporous Co3 O4 (meso-Co3 O4 ) nanobundles with uniform shape and size by employing a hard-template method. In this study, the incipient wetness impregnation technique has been chosen for loading metal precursor into the silica hard template (SBA-15). The results reveal that the concentration of a saturated precursor solution plays a vital role in mesostructured ordering, as well as the size and shape of the final meso-Co3 O4 product. The optimized precursor concentration allows us to synthesize ordered meso-Co3 O4 with four to seven nanowires in each particle. The meso-Co3 O4 structure exhibits excellent electrocatalytic activity for both glucose and water oxidation reactions.
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Affiliation(s)
- Alam Venugopal Narendra Kumar
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Yinghao Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Shuli Yin
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Chunjie Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Hairong Xue
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - You Xu
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Xiaonian Li
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Hongjing Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
| | - Liang Wang
- State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, Zhejiang, P.R. China
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