Advanced Nanomaterials for Electrochemical Energy Storage and Conversion Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 21596

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Department of Organic Materials & Fiber Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
Interests: electrochemical energy storage and conversion system; energy nanomaterials; nanocarbons and carbon fibers; functional nanofibers; supercapacitors; electrocatalysts; metal nanoparticles; biosensors; fuel cells; layer-by-layer self-assembled thin films and capsules; nanostructured molecular nanocomposites; hydrogels; hybrid POSS materials
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Special Issue Information

Dear Colleagues,

Advanced nanomaterials are the core of electrochemical energy storage and conversion devices since the quantity of energy stored by the system and the power depend on them. Today, nanostructured, 2D/3D nano-architectured, nanoporous electrodes are producing spectacular results. Designing the electrodes interface for energy storage via the adjustment of specific properties in terms of conductivity, controlled pore size and porosity, surface modification, etc., is an important research area to prepare supercapacitor as well as battery electrodes with intensified properties, which contributes to the development of next-generation electrochemical energy storage and conversion devices. 

This Special Issue is open for all contributions in the field of advanced nanomaterials-based electrochemical energy storage and conversion devices. The focus of this Issue is to highlight the state of knowledge in processing, manufacturing, characterization, and potential applications for advanced nanomaterials.

Prof. Dr. Byoung-Suhk Kim
Guest Editor

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Keywords

  • Nanostructured materials
  • Nanoporous materials
  • Advanced electrode nanomaterials
  • Synthesis, characterization, modification, and devices
  • Energy storage and conversion
  • Electrochemical properties.

Published Papers (7 papers)

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Research

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17 pages, 6120 KiB  
Article
Room and High Temperature Tensile Responses of Tib2-Graphene Al 7075 Hybrid Composite Processed through Squeeze Casting
by N. Mathimurugan, V. Vaishnav, R. Praveen Kumar, P. Boobalan, S. Nandha, Venkatesh Chenrayan, Kiran Shahapurkar, Vineet Tirth, Ibrahim M. Alarifi, Moutaz Mustafa A. Eldirderi, Khaled Mohamed Khedher and Hadee Mohammed Najm
Nanomaterials 2022, 12(18), 3124; https://doi.org/10.3390/nano12183124 - 9 Sep 2022
Cited by 6 | Viewed by 1456
Abstract
The development of aluminium composite with the inclusion of advanced materials is a continuous research process due to the increasing industrial demand for advanced hybrid materials. To cater for this need, this research work focuses on the development of Al 7075 alloy reinforced [...] Read more.
The development of aluminium composite with the inclusion of advanced materials is a continuous research process due to the increasing industrial demand for advanced hybrid materials. To cater for this need, this research work focuses on the development of Al 7075 alloy reinforced with TiB2 and graphene and on the evaluation of its strengthening mechanism. Two different modes of improving the strength of the hybrid composite have been followed; one is by the inclusion of graphene at three levels of 0.1, 0.2 and 0.3%, and another by the processing route, squeeze casting technique by compression of the molten hybrid composite slurry before casting. The microstructure and characterisation of the composite material are examined and analysed with the help of XRD, SEM, EDAX and chemical spectroscopy. A microstructure evaluation is employed to justify the homogenous dispersal and the existence of reinforced particles. A tensile test is conducted at room temperature and high temperature environments to assess the tensile strength. The research outcome affirms that a significant improvement in tensile and hardness has been noted in comparison with base alloy. The fracture-morphology results affirm the change in fracture mode from brittle to ductile when the tensile testing environment changes from room temperature to high temperature. Finally, the dispersion strengthening mechanism is validated with an empirical approach. Full article
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17 pages, 5021 KiB  
Article
Composite Structural Supercapacitors: High-Performance Carbon Nanotube Supercapacitors through Ionic Liquid Localisation
by Benjamin Mapleback, Vu Dao, Lachlan Webb and Andrew Rider
Nanomaterials 2022, 12(15), 2558; https://doi.org/10.3390/nano12152558 - 25 Jul 2022
Cited by 6 | Viewed by 1914
Abstract
Composite structural supercapacitors (SSC) are an attractive technology for aerospace vehicles; however, maintaining strength whilst adding energy storage to composite structures has been difficult. Here, SSCs were manufactured using aerospace-grade composite materials and CNT mat electrodes. A new design methodology was explored where [...] Read more.
Composite structural supercapacitors (SSC) are an attractive technology for aerospace vehicles; however, maintaining strength whilst adding energy storage to composite structures has been difficult. Here, SSCs were manufactured using aerospace-grade composite materials and CNT mat electrodes. A new design methodology was explored where the supercapacitor electrolyte was localised within the composite structure, achieving good electrochemical performance within the active region, whilst maintaining excellent mechanical performance elsewhere. The morphologies of these localised SSC designs were characterised with synchrotron X-ray fluorescence microscopy and synchrotron X-ray micro-computed tomography and could be directly correlated with both electrochemical and mechanical performance. One configuration used an ionogel with an ionic liquid (IL) electrolyte, which assisted localisation and achieved 2640 mW h kg−1 at 8.37 W kg−1 with a corresponding short beam shear (SBS) strength of 71.5 MPa in the active area. A separate configuration with only IL electrolyte achieved 758 mW h kg−1 at 7.87 W kg−1 with SBS strength of 106 MPa in the active area. Both configurations provide a combined energy and strength superior to results previously reported in the literature for composite SSCs. Full article
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15 pages, 3410 KiB  
Article
Bamboo-Based Mesoporous Activated Carbon for High-Power-Density Electric Double-Layer Capacitors
by Ju-Hwan Kim, Hye-Min Lee, Sang-Chul Jung, Dong-Chul Chung and Byung-Joo Kim
Nanomaterials 2021, 11(10), 2750; https://doi.org/10.3390/nano11102750 - 17 Oct 2021
Cited by 15 | Viewed by 2842
Abstract
Demand for hybrid energy storage systems is growing, but electric double-layer capacitors (EDLCs) have insufficient output characteristics because of the microporous structure of the activated carbon electrode material. Commercially, activated carbon is prepared from coconut shells, which yield an activated carbon material (YP-50F) [...] Read more.
Demand for hybrid energy storage systems is growing, but electric double-layer capacitors (EDLCs) have insufficient output characteristics because of the microporous structure of the activated carbon electrode material. Commercially, activated carbon is prepared from coconut shells, which yield an activated carbon material (YP-50F) rich in micropores, whereas mesopores are desired in EDLCs. In this study, we prepared mesoporous activated carbon (PB-AC) using a readily available, environmentally friendly resource: bamboo. Crucially, modification using phosphoric acid and steam activation was carried out, which enabled the tuning of the crystal structure and the pore characteristics of the product. The structural characteristics and textural properties of the PB-AC were determined, and the specific surface area and mesopore volume ratio of the PB-AC product were 960–2700 m2/g and 7.5–44.5%, respectively. The high specific surface area and mesopore-rich nature originate from the phosphoric acid treatment. Finally, PB-AC was used as the electrode material in EDLCs, and the specific capacitance was found to be 86.7 F/g for the phosphoric-acid-treated sample steam activated at 900 °C for 60 min; this capacitance is 35% better than that of the commercial YP-50F (64.2 F/g), indicating that bamboo is a suitable material for the production of activated carbon. Full article
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12 pages, 2302 KiB  
Article
Preparation of Network-Structured Carbon Nanofiber Mats Based on PAN Blends Using Electrospinning and Hot-Pressing Methods for Supercapacitor Applications
by Min-Jung Ma, Jae-Gyoung Seong, Sivaprakasam Radhakrishnan, Tae-Hoon Ko and Byoung-Suhk Kim
Nanomaterials 2021, 11(9), 2447; https://doi.org/10.3390/nano11092447 - 20 Sep 2021
Cited by 7 | Viewed by 2607
Abstract
In this work, we prepared network-structured carbon nanofibers using polyacrylonitrile blends (PAN150 and PAN85) with different molecular weights (150,000 and 85,000 g mol−1) as precursors through electrospinning/hot-pressing methods and stabilization/carbonization processes. The obtained PAN150/PAN85 polymer nanofibers (PNFs; PNF-73, PNF-64 and PNF-55) [...] Read more.
In this work, we prepared network-structured carbon nanofibers using polyacrylonitrile blends (PAN150 and PAN85) with different molecular weights (150,000 and 85,000 g mol−1) as precursors through electrospinning/hot-pressing methods and stabilization/carbonization processes. The obtained PAN150/PAN85 polymer nanofibers (PNFs; PNF-73, PNF-64 and PNF-55) with different weight ratios of 70/30, 60/40 and 50/50 (w/w) provided good mechanical and electrochemical properties due to the formation of physically bonded network structures between the blended PAN nanofibers during the hot-processing/stabilization processes. The resulting carbonized PNFs (cPNFs; cPNF-73, cPNF-64, and cPNF-55) were utilized as anode materials for supercapacitor applications. cPNF-73 exhibited a good specific capacitance of 689 F g−1 at 1 A g−1 in a three-electrode set-up compared to cPNF-64 (588 F g−1 at 1 A g−1) and cPNF-55 (343 F g−1 at 1 A g−1). In addition, an asymmetric hybrid cPNF-73//NiCo2O4 supercapacitor device also showed a good specific capacitance of 428 F g−1 at 1 A g−1 compared to cPNF-64 (400 F g−1 at 1 A g−1) and cPNF-55 (315 F g−1 at 1 A g−1). The cPNF-73-based device showed a good energy density of 1.74 W h kg−1 (0.38 W kg−1) as well as an excellent cyclic stability (83%) even after 2000 continuous charge–discharge cycles at a current density of 2 A g−1. Full article
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12 pages, 2413 KiB  
Article
Durable Lithium/Selenium Batteries Enabled by the Integration of MOF-Derived Porous Carbon and Alucone Coating
by Mohammad Hossein Aboonasr Shiraz, Erwin Rehl, Hossein Kazemian and Jian Liu
Nanomaterials 2021, 11(8), 1976; https://doi.org/10.3390/nano11081976 - 31 Jul 2021
Cited by 11 | Viewed by 3047
Abstract
Lithium-selenium (Li-Se) batteries are a promising energy storage system in electric vehicles due to their high capacity and good kinetics. However, the shuttle effect issue, caused by polyselenide dissolution from the Se cathode, has hampered the development of Li-Se batteries. Herein, we developed [...] Read more.
Lithium-selenium (Li-Se) batteries are a promising energy storage system in electric vehicles due to their high capacity and good kinetics. However, the shuttle effect issue, caused by polyselenide dissolution from the Se cathode, has hampered the development of Li-Se batteries. Herein, we developed a facile preparation of porous carbon from a metal-organic framework (MOF) to confine Se (Se/CZIF) and protect the Se/CZIF composite with an alucone coating by molecular layer deposition (MLD). The optimal alucone coated Se/CZIF cathode prepared exhibits a one-step reversible charge/discharge process in the carbonate electrolytes. The inhibition of polyselenide dissolution is credited with the improved electrochemical performance, formation of thin and stable solid electrolyte interphase (SEI) layers, and a reduction in charge transfer resistance, thus improving the overall performance of Li-Se batteries. Full article
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19 pages, 4226 KiB  
Article
Hetero-Porous, High-Surface Area Green Carbon Aerogels for the Next-Generation Energy Storage Applications
by Bony Thomas, Shiyu Geng, Mohini Sain and Kristiina Oksman
Nanomaterials 2021, 11(3), 653; https://doi.org/10.3390/nano11030653 - 8 Mar 2021
Cited by 29 | Viewed by 4114
Abstract
Various carbon materials have been developed for energy storage applications to address the increasing energy demand in the world. However, the environmentally friendly, renewable, and nontoxic bio-based carbon resources have not been extensively investigated towards high-performance energy storage materials. Here, we report an [...] Read more.
Various carbon materials have been developed for energy storage applications to address the increasing energy demand in the world. However, the environmentally friendly, renewable, and nontoxic bio-based carbon resources have not been extensively investigated towards high-performance energy storage materials. Here, we report an anisotropic, hetero-porous, high-surface area carbon aerogel prepared from renewable resources achieving an excellent electrical double-layer capacitance. Two different green, abundant, and carbon-rich lignins which can be extracted from various biomasses, have been selected as raw materials, i.e., kraft and soda lignins, resulting in clearly distinct physical, structural as well as electrochemical characteristics of the carbon aerogels after carbonization. The obtained green carbon aerogel based on kraft lignin not only demonstrates a competitive specific capacitance as high as 163 F g−1 and energy density of 5.67 Wh kg−1 at a power density of 50 W kg−1 when assembled as a two-electrode symmetric supercapacitor, but also shows outstanding compressive mechanical properties. This reveals the great potential of the carbon aerogels developed in this study for the next-generation energy storage applications requiring green and renewable resources, lightweight, robust storage ability, and reliable mechanical integrity. Full article
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Review

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48 pages, 4456 KiB  
Review
Modern Nanocomposites and Hybrids as Electrode Materials Used in Energy Carriers
by Beata Kurc, Marita Pigłowska, Łukasz Rymaniak and Paweł Fuć
Nanomaterials 2021, 11(2), 538; https://doi.org/10.3390/nano11020538 - 19 Feb 2021
Cited by 23 | Viewed by 4287
Abstract
Over the past decades, the application of new hybrid materials in energy storage systems has seen significant development. The efforts have been made to improve electrochemical performance, cyclic stability, and cell life. To achieve this, attempts have been made to modify existing electrode [...] Read more.
Over the past decades, the application of new hybrid materials in energy storage systems has seen significant development. The efforts have been made to improve electrochemical performance, cyclic stability, and cell life. To achieve this, attempts have been made to modify existing electrode materials. This was achieved by using nano-scale materials. A reduction of size enabled an obtainment of changes of conductivity, efficient energy storage and/or conversion (better kinetics), emergence of superparamagnetism, and the enhancement of optical properties, resulting in better electrochemical performance. The design of hybrid heterostructures enabled taking full advantage of each component, synergistic effect, and interaction between components, resulting in better cycle stability and conductivity. Nowadays, nanocomposite has ended up one of the foremost prevalent materials with potential applications in batteries, flexible cells, fuel cells, photovoltaic cells, and photocatalysis. The main goal of this review is to highlight a new progress of different hybrid materials, nanocomposites (also polymeric) used in lithium-ion (LIBs) and sodium-ion (NIBs) cells, solar cells, supercapacitors, and fuel cells and their electrochemical performance. Full article
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