Durability and Reliability of Functional Coatings in Energy Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 7606

Special Issue Editors


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Guest Editor
Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan
Interests: mechanical properties of materials; hard magnetic coatings by electrodeposition; reliability testing and analysis; energy harvester based on magnetic materials; flexible transparent conductive materials; reliability and durability of photovoltaics

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Guest Editor
Department of Materials and Optoelectronic Science,, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
Interests: atomic layer deposition; energy nanomaterial; microstructure analysis; energy storage; photocatalysis

Special Issue Information

Dear Colleagues,

Recent developments in energy harvesting, conversion, and storage have introduced functional coatings into multidisciplinary research on surface engineering and data science. Driven by the urgent demands of system-integration-based applications, the need to investigate material integrity, properties degradation, and reliability of functional coatings at the system- and subsystem-level has created a huge demand for combinations of experimental, statistical, analytical, and theoretical activities. Reliability and durability testing and analysis of functional coatings have begun widening their applications in energy-related fields.

This Special Issue of the journal Coatings, which will focus on the “Durability and Reliability of Functional Coatings in Energy Applications”, will collect new original research and review papers with special emphasis on the testing, characterization, and analysis of functional coatings and thin films regarding their reliability and durability in energy applications. We sincerely invite researchers in related fields to submit relevant manuscripts to this Special Issue, which will serve as a forum for papers on the following concepts:

  • Experimental and statistical research on the reliability and durability of functional coatings.
  • Recent developments in multidisciplinary research on the degradation of functional coatings.
  • Characterization techniques for time-variant properties of functional coatings.
  • Accelerated testing and field testing of functional coatings with controlled and/or monitored exposure conditions.
  • Failure and time-to-failure analysis for understanding the degradation mechanisms of functional coatings.
  • The latest development of data-science driven investigation of functional coatings and thin films for the improvement of reliability and durability.
  • Computer modeling, simulation, and calculation to predict properties, performance, durability, and reliability of functional coatings in service environments through data-science fashions.

Prof. Dr. Chiao-Chi Lin
Prof. Dr. Chih-Chieh Wang
Guest Editors

Manuscript Submission Information

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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. Coatings is an international peer-reviewed open access monthly 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 2600 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

  • coatings and thin films
  • reliability and durability
  • degradation
  • materials characterization and properties
  • environmental testing
  • statistical analysis
  • failure and time-to-failure analysis
  • energy applications

Published Papers (5 papers)

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Research

18 pages, 5285 KiB  
Article
Highly Efficient Photocathodic Protection Performance of ZIS@CNNs Composites under Visible Light
by Weitao Li, Zhanyuan Yang, Yanhui Li, Pengfei Zhang and Hong Li
Coatings 2023, 13(9), 1479; https://doi.org/10.3390/coatings13091479 - 22 Aug 2023
Cited by 3 | Viewed by 958
Abstract
Low isolation efficiency of photogenerated electron-hole pairs and inadequate utilization of visible light limit the application of g-C3N4 nanosheets (CNNs) in photocathodic protection (PCP). Therefore, indium zinc sulfide (ZnIn2S4, ZIS) nanolayers with nano-leaf structures were fabricated [...] Read more.
Low isolation efficiency of photogenerated electron-hole pairs and inadequate utilization of visible light limit the application of g-C3N4 nanosheets (CNNs) in photocathodic protection (PCP). Therefore, indium zinc sulfide (ZnIn2S4, ZIS) nanolayers with nano-leaf structures were fabricated on CNNs using a simple hydrothermal method and used as visible light sensitizer and electron donor to improve its PCP performance. Under visible light illumination, the 30% ZIS@CNNs photoelectrode coupled with 316 stainless steel (SS) exhibited the largest photocurrent density of 17.30 μA cm−2 and the highest potential drop of 0.37 V, which was approximately 4 and 7.5 times higher than that of pure CNNs, respectively. The improvement in protection performance may be attributable to the crucial increase in visible light absorption and the terrific enhancement in rapid migration pathways provided using heterogeneous junctions. Full article
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11 pages, 4536 KiB  
Article
Effect of Fabric Electrode Surface Coating Medium on ECG Signal Quality under Dynamic and Static Conditions
by Yazhou Zhang, Jinli Zhou, Hongying Yang, Qingxia Liu, Ming Wang, Fan Xiong, Dongyi Chen and Lixin Du
Coatings 2023, 13(1), 108; https://doi.org/10.3390/coatings13010108 - 06 Jan 2023
Cited by 3 | Viewed by 1779
Abstract
This study intends to explore the influence of a fabric electrode skin interface filling medium on ECG signals under dynamic and static conditions, so as to be able to better monitor both stable and dynamic ECG signals. In this paper, cotton fabric electrodes [...] Read more.
This study intends to explore the influence of a fabric electrode skin interface filling medium on ECG signals under dynamic and static conditions, so as to be able to better monitor both stable and dynamic ECG signals. In this paper, cotton fabric electrodes were prepared using electroless silver-plated conductive cotton fabric, and then the electrodes were integrated into a physiotherapy-grade elastic bandage to assemble the fabric ECG tape. The electrode impedance tester and the BIOPAC physiological recorder were used to measure the fabric electrode-skin impedance and electrocardiogram under dynamic and static conditions, respectively. Later, the influence of the fabric electrode coated medium on the acquisition effect of an electrocardiogram signal under dynamic and static conditions is discussed. The results show that in the absence of a dielectric reagent coating, the cotton fabric electrode is easily disturbed by external noise which leads to large electrode-skin contact impedance. However, the electrode-skin contact impedance is greatly reduced after coating the fabric electrode with the dielectric reagent. At the same time, after applying the conducive paste coating, the corresponding change curve of the fabric electrode became more stable, and the impedance value was less than 0.005 MΩ·cm2, which meets the standard requirement for textile dry electrode skin impedance. In a state of rest, a clear and stable ECG can be collected regardless of whether the medium reagent is coated or not. However, only after applying the conductive paste can a stable ECG signal be collected under the three motion modes, or can a P wave, QRS wave group, or T wave be clearly distinguished. In addition, there is a high correlation with the disposable gel electrode, which can satisfy the requirements of the long-term monitoring of ECG signals under dynamic conditions. Full article
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10 pages, 1646 KiB  
Article
Molecular Dynamical Investigation of Lithium-Ion Adsorption on Multilayer Fullerene
by Jinbin Lu, Jie Guan, Hao Chen, Minghua Li, Zhongwei Hua, Fuzhou Niu and Yang Zhang
Coatings 2022, 12(12), 1824; https://doi.org/10.3390/coatings12121824 - 25 Nov 2022
Cited by 1 | Viewed by 1266
Abstract
As the cathode of lithium-ion batteries, carbon material has been the focus of research. At present, diverse investigations have been carried out on the lithium convergence behavior in the carbon material family. As a new carbon material, multilayer fullerenes have been shown in [...] Read more.
As the cathode of lithium-ion batteries, carbon material has been the focus of research. At present, diverse investigations have been carried out on the lithium convergence behavior in the carbon material family. As a new carbon material, multilayer fullerenes have been shown in various experimental studies to have a high discharge rate as an electrode, indicating that onion-like carbon has the potential to release energy quickly. Materials and mechanical scientists are increasingly interested in lithium-ion batteries. In this paper, the molecular dynamics (MD) method was used to simulate the absorption of lithium ions by multilayer fullerenes. A model of five layers of fullerenes was established to compare the lithium-ion absorption rates of multiple layers of fullerenes at different lithium-ion concentrations. The effects of the lithium-ion diffusion rate on the results were considered. In addition, the effects of the number of lithium ions, the velocity, and the layer number of multilayer fullerenes on the structural behavior and stress were investigated thoroughly when the multilayer fullerenes adsorbed lithium ions. Full article
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9 pages, 3102 KiB  
Article
MOF-Derived Hetero-Zn/Co Hollow Core-Shell TMOs as Anode for Lithium-Ion Batteries
by Junfeng Pan, Ming Gong, Wenhao Cui, Guoxu Zheng and Mingxin Song
Coatings 2022, 12(10), 1487; https://doi.org/10.3390/coatings12101487 - 06 Oct 2022
Cited by 3 | Viewed by 1301
Abstract
In this work, metal–organic frameworks (MOFs) were used as precursors to prepare Zn/Co oxide with a porous dodecahedral core-shell structure. Herein, a low-temperature self-assembly calcination and hydrothermal strategy of imidazole-based Zn-Co-MOF was used. As anode of lithium-ion batteries (LIBs), ZnO/Co3O4 [...] Read more.
In this work, metal–organic frameworks (MOFs) were used as precursors to prepare Zn/Co oxide with a porous dodecahedral core-shell structure. Herein, a low-temperature self-assembly calcination and hydrothermal strategy of imidazole-based Zn-Co-MOF was used. As anode of lithium-ion batteries (LIBs), ZnO/Co3O4 has good cycling stability, the specific discharge capacity of ZnO/Co3O4 is stable at about 640 mAh g−1 after 200 cycles, and its coulombic efficiency (CE) is stable above 95% after the first 20 cycles. When the current density is 0.6 A/g, the discharge capacity is 420 mAh g−1. This excellent electrochemical performance is attributed to its unique porous hollow structure and unique heterojunction electrode interface, which improves the Li+ storage capacity, increases the contact area between the electrode and the electrolyte, and improves the overall electrochemical activity. In addition, the synergistic effect of ZnO and Co3O4 also plays an important role in improving the electrochemical performance. Full article
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15 pages, 9101 KiB  
Article
Weathering and Material Characterization of ZTO/Ag/ZTO Coatings on Polyethylene Terephthalate Substrates for the Application of Flexible Transparent Conductors
by Yu-Han Kao, Hung-Shuo Chang, Chih-Chieh Wang and Chiao-Chi Lin
Coatings 2022, 12(9), 1249; https://doi.org/10.3390/coatings12091249 - 26 Aug 2022
Cited by 1 | Viewed by 1487
Abstract
Flexible transparent conducting coatings have been adopted in many novel optoelectrical devices for energy-related applications. Laminated coatings composed of oxide/metal/oxide (abbreviated as OMO) layers are promising alternative materials to indium tin oxide (ITO). However, the durability and weatherability of free-standing OMO samples—including laminated [...] Read more.
Flexible transparent conducting coatings have been adopted in many novel optoelectrical devices for energy-related applications. Laminated coatings composed of oxide/metal/oxide (abbreviated as OMO) layers are promising alternative materials to indium tin oxide (ITO). However, the durability and weatherability of free-standing OMO samples—including laminated OMO coatings and polymeric substrates—affects the performance of the related optoelectrical components and devices. It is necessary to study the degradation mechanisms in terms of optoelectrical and mechanical properties through the weathering tests. In this study, we performed indoor accelerated and outdoor weathering tests on commercial OMO samples composed of ZTO/Ag/ZTO coatings on polyethylene terephthalate (PET) substrates. The effects of environmental stressors such as ultraviolet (UV) radiation, elevated temperature, and mechanical bending on the degradation behaviors of OMO samples were investigated. Comprehensive material characterizations including UV–Vis spectroscopy, four-point probing, tensile tests, and Raman spectroscopy were carried out. The OMO coating was robust against the weathering tests, while the PET substrates underwent embrittlement upon long-term weathering. The embrittled PET substrates consequently impaired the mechanical flexibility and bendability of the OMO coatings. The results of this study provide an in-depth understanding of the durability and weatherability of silver-based OMO flexible transparent conductive materials. Full article
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