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Nanomaterials
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State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan
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State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan

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

Deadline for manuscript submissions: closed (30 March 2022) | Viewed by 10357

Special Issue Editors

Dr. Tai-Feng Hung

E-Mail Website
Guest Editor
Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City, Taiwan
Interests: nanomaterials; energy storage technologies; metal-ion/air batteries; fuel cells; electrocatalysis; polymer composites
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Chun Jern Pan

E-Mail Website
Guest Editor
Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology (Jiangong campus), Kaohsiung, Taiwan
Interests: nanomaterials; in situ X-ray absorption technologies; lithium-ion batteries; fuel cells; electrocatalysis

Special Issue Information

Dear Colleagues,

Recent technological innovations have increased the widespread application of various energy storage/conversion and catalysis fields. Rational design and synthesis of state-of-the-art nanomaterials are significant for achieving desired materials properties for a variety of applications mentioned above. With this Special Issue, we aim to collect recent research studies developed in the scientific community of Taiwan, related with new nanomaterials applied to energy storage/conversion and/or as electrocatalytic materials.

All related studies are suitable to submit to this Special Issue if they have been mainly carried out in Taiwan or by Taiwanese researchers. Any international collaborative research with Taiwanese researchers is also welcome. Another aim of this Special Issue, apart from introducing state-of-the-art research on the topic “Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan”, will be to promote collaborative investigations between Taiwan and international researchers in this area.

Prof. Dr. Tai-Feng Hung
Prof. Dr. Chun Jern Pan
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanomaterials for energy storage
  • Nanomaterials for energy conversion
  • Nanomaterials for water splitting
  • Nanomaterials as heterogeneous catalysts
  • Metal-ion batteries
  • Metal-ion capacitors
  • Flow batteries
  • Supercapacitors
  • Fuel cells
  • Solar cells
  • Sensors

Published Papers (4 papers)

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Research

12 pages, 3177 KiB  
Article
Industrial Silicon-Wafer-Wastage-Derived Carbon-Enfolded Si/Si-C/C Nanocomposite Anode Material through Plasma-Assisted Discharge Process for Rechargeable Li-Ion Storage
by Rasu Muruganantham, Chih-Wei Yang, Hong-Jyun Wang, Chia-Hung Huang and Wei-Ren Liu
Nanomaterials 2022, 12(4), 659; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12040659 - 16 Feb 2022
Cited by 7 | Viewed by 3521
Abstract
Silicon is a promising anode material for high-performance Li-ion batteries as a result of its high theoretical specific capacity and elemental abundance. Currently, the commercial application of the Si-based anode is still restricted by its large volume changes during the lithiation cycles and [...] Read more.
Silicon is a promising anode material for high-performance Li-ion batteries as a result of its high theoretical specific capacity and elemental abundance. Currently, the commercial application of the Si-based anode is still restricted by its large volume changes during the lithiation cycles and low electrical conductivity. To address these issues, we demonstrate a facile plasma-assisted discharge process to anchor nano-sized Si particles into methanol with quick quenching. After the subsequent sintering process, we obtained a Si/SiC/C composite (M-Si). The unique structure not only allowed for the electrolyte infiltration to enhance lithium ion diffusion during charge and discharge process, but also buffered the volume expansion of silicon particles to enhance the rate capability and cycle stability. The M-Si cell electrochemical results exposed good Li-ion storage performance compared to that of the bare Si used cell (B-Si). The electrode cell consisting of M-Si exhibited remarkable enhanced cyclic stability and sustained the reversible specific capacity of 563 mAhg−1 after 100 cycles, with a coulombic efficiency of 99% at a current density of 0.1C, which is higher than that of the B-Si electrode cell that was used. Hence, the as-prepared Si/SiC/C composite is an efficient anode material for Li-ion battery applications. Moreover, these results indicate that the novel plasma-assisted discharge technique will bring a potential durable methodology to produce novel high-performance electrode materials for future advanced large-scale energy-storage applications. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan)
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18 pages, 2764 KiB  
Article
MoO3 Nanoparticle Coatings on High-Voltage 5 V LiNi0.5Mn1.5O4 Cathode Materials for Improving Lithium-Ion Battery Performance
by Zong-Han Wu, Jeng-Ywan Shih, Ying-Jeng James Li, Yi-De Tsai, Tai-Feng Hung, Chelladurai Karuppiah, Rajan Jose and Chun-Chen Yang
Nanomaterials 2022, 12(3), 409; https://0-doi-org.brum.beds.ac.uk/10.3390/nano12030409 - 26 Jan 2022
Cited by 6 | Viewed by 3087
Abstract
To reduce surface contamination and increase battery life, MoO3 nanoparticles were coated with a high-voltage (5 V) LiNi0.5Mn1.5O4 cathode material by in-situ method during the high-temperature annealing process. To avoid charging by more than 5 V, we [...] Read more.
To reduce surface contamination and increase battery life, MoO3 nanoparticles were coated with a high-voltage (5 V) LiNi0.5Mn1.5O4 cathode material by in-situ method during the high-temperature annealing process. To avoid charging by more than 5 V, we also developed a system based on anode-limited full-cell with a negative/positive electrode (N/P) ratio of 0.9. The pristine LiNi0.5Mn1.5O4 was initially prepared by high-energy ball-mill with a solid-state reaction, followed by a precipitation reaction with a molybdenum precursor for the MoO3 coating. The typical structural and electrochemical behaviors of the materials were clearly investigated and reported. The results revealed that a sample of 2 wt.% MoO3-coated LiNi0.5Mn1.5O4 electrode exhibited an optimal electrochemical activity, indicating that the MoO3 nanoparticle coating layers considerably enhanced the high-rate charge–discharge profiles and cycle life performance of LiNi0.5Mn1.5O4 with a negligible capacity decay. The 2 wt.% MoO3-coated LiNi0.5Mn1.5O4 electrode could achieve high specific discharge capacities of 131 and 124 mAh g−1 at the rates of 1 and 10 C, respectively. In particular, the 2 wt.% MoO3-coated LiNi0.5Mn1.5O4 electrode retained its specific capacity (87 mAh g−1) of 80.1% after 500 cycles at a rate of 10 C. The Li4Ti5O12/LiNi0.5Mn1.5O4 full cell based on the electrochemical-cell (EL-cell) configuration was successfully assembled and tested, exhibiting excellent cycling retention of 93.4% at a 1 C rate for 100 cycles. The results suggest that the MoO3 nano-coating layer could effectively reduce side reactions at the interface of the LiNi0.5Mn1.5O4 cathode and the electrolyte, thus improving the electrochemical performance of the battery system. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan)
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16 pages, 4430 KiB  
Article
Structural and Surfacial Modification of Carbon Nanofoam as an Interlayer for Electrochemically Stable Lithium-Sulfur Cells
by Yee-Jun Quay and Sheng-Heng Chung
Nanomaterials 2021, 11(12), 3342; https://0-doi-org.brum.beds.ac.uk/10.3390/nano11123342 - 09 Dec 2021
Cited by 10 | Viewed by 2604
Abstract
Electrochemical lithium-sulfur batteries engage the attention of researchers due to their high-capacity sulfur cathodes, which meet the increasing energy-density needs of next-generation energy-storage systems. We present here the design, modification, and investigation of a carbon nanofoam as the interlayer in a lithium-sulfur cell [...] Read more.
Electrochemical lithium-sulfur batteries engage the attention of researchers due to their high-capacity sulfur cathodes, which meet the increasing energy-density needs of next-generation energy-storage systems. We present here the design, modification, and investigation of a carbon nanofoam as the interlayer in a lithium-sulfur cell to enable its high-loading sulfur cathode to attain high electrochemical utilization, efficiency, and stability. The carbon-nanofoam interlayer features a porous and tortuous carbon network that accelerates the charge transfer while decelerating the polysulfide diffusion. The improved cell demonstrates a high electrochemical utilization of over 80% and an enhanced stability of 200 cycles. With such a high-performance cell configuration, we investigate how the battery chemistry is affected by an additional polysulfide-trapping MoS2 layer and an additional electron-transferring graphene layer on the interlayer. Our results confirm that the cell-configuration modification brings major benefits to the development of a high-loading sulfur cathode for excellent electrochemical performances. We further demonstrate a high-loading cathode with the carbon-nanofoam interlayer, which attains a high sulfur loading of 8 mg cm−2, an excellent areal capacity of 8.7 mAh cm−2, and a superior energy density of 18.7 mWh cm−2 at a low electrolyte-to-sulfur ratio of 10 µL mg−1. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan)
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14 pages, 3566 KiB  
Article
Lithium and Potassium Cations Affect the Performance of Maleamate-Based Organic Anode Materials for Potassium- and Lithium-Ion Batteries
by Kefyalew Wagari Guji, Wen-Chen Chien, Fu-Ming Wang, Alagar Ramar, Endazenaw Bizuneh Chemere, Lester Tiong and Laurien Merinda
Nanomaterials 2021, 11(11), 3120; https://0-doi-org.brum.beds.ac.uk/10.3390/nano11113120 - 19 Nov 2021
Cited by 3 | Viewed by 2119
Abstract
In this study we prepared potassium-ion batteries (KIBs) displaying high output voltage and, in turn, a high energy density, as replacements for lithium-ion batteries (LIBs). Organic electrode materials featuring void spaces and flexible structures can facilitate the mobility of K+ to enhance [...] Read more.
In this study we prepared potassium-ion batteries (KIBs) displaying high output voltage and, in turn, a high energy density, as replacements for lithium-ion batteries (LIBs). Organic electrode materials featuring void spaces and flexible structures can facilitate the mobility of K+ to enhance the performance of KIBs. We synthesized potassium maleamate (K-MA) from maleamic acid (MA) and applied as an anode material for KIBs and LIBs, with 1 M potassium bis(fluorosulfonyl)imide (KFSI) and 1 M lithium bis(fluorosulfonyl)imide (LiFSI) in a mixture of ethylene carbonate and ethyl methyl carbonate (1:2, v/v) as respective electrolytes. The K-MA_KFSI anode underwent charging/discharging with carbonyl groups at low voltage, due to the K···O bond interaction weaker than Li···O. The K-MA_KFSI and K-MA_LiFSI anode materials delivered a capacity of 172 and 485 mA h g−1 after 200 cycles at 0.1C rate, respectively. K-MA was capable of accepting one K+ in KIB, whereas it could accept two Li+ in a LIB. The superior recoveries performance of K-MA_LiFSI, K-MA_KFSI, and Super P_KFSI at rate of 0.1C were 320, 201, and 105 mA h g−1, respectively. This implies the larger size of K+ can reversibly cycling at high rate. Full article
(This article belongs to the Special Issue State-of-the-Art Nanomaterials for Energy Storage/Conversion and Electrocatalysis in Taiwan)
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