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Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 2nd Edition

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 2907

Special Issue Editors

Dr. Jin Niu

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
Interests: nanocarbons; biomass-derived carbons; porous carbons; carbon-based materials; capacitors; secondary batteries
Special Issues, Collections and Topics in MDPI journals
Dr. Nannan Guo

E-Mail Website
Guest Editor
College of Chemistry, Xinjiang University, Urumqi, China
Interests: carbon materials; energy-storage materials; ion-batteries; pitch-based carbons
Special Issues, Collections and Topics in MDPI journals
Dr. Yaxin Chen

E-Mail Website
Guest Editor
School of Materials and Physics, China University of Mining and Technology, Xuzhou, China
Interests: carbon materials; energy storage materials; ion-batteries; pitch-based carbons
Special Issues, Collections and Topics in MDPI journals
Dr. Juzhe Liu

E-Mail Website
Guest Editor
College of Environmental Science and Engineering, North China Electric Power University, Beijing, China
Interests: synthesis and phase control of nanomaterials; electrocatalysis; amorphous materials; self-reconstruction; carbon capture; utilization and storage
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

After the great success of this Special Issue‘s first edition, we are pleased to inform you that Molecules will launch the second edition of “Advanced Electrode Materials for Electrochemical Energy Storage and Conversion”.

https://www.mdpi.com/journal/molecules/special_issues/OSGK8183AP

As humankind is affected by any number of looming challenges—energy shortages and environmental pollution—we must optimize conventional energy mixes that mainly rely on fossil fuels by utilizing clean energy. In this regard, it is of great importance to develop efficient, sustainable, electrochemical energy storage and conversion technologies (e.g., supercapacitor, battery, and electrocatalysis) to convert and store fluctuant clean energy. Electrode materials are the core piece of these systems and are closely related to the total electrochemical performance, which has experienced vigorous development and realized morphology and structural precision regulations to adapt to the diverse and complex energy storage and transformation processes. However, more advanced electrode materials are needed for a clean future. In this Special Issue, we invite the research community in the field to contribute original scientific articles exploring cutting-edge research and recent advances in advanced electrode materials for electrochemical energy storage and conversion. Comprehensive review articles are also accepted. We are looking forward to receiving your contributions.

Dr. Jin Niu
Dr. Nannan Guo
Dr. Yaxin Chen
Dr. Juzhe Liu
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. Molecules 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 2700 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

  • clean energy
  • advanced electrode material
  • morphology and structural regulation
  • electrocatalysis
  • battery
  • supercapacitor
  • electrochemical energy storage
  • electrochemical energy conversion

Related Special Issue

Published Papers (4 papers)

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Research

12 pages, 7495 KiB  
Article
Performance Degradation of a Double-Perovskite PrBaCo2O5+δ Cathode Operating under a CO2/H2O-Containing Atmosphere
by Lin Zhu, Pengzhang Li, Yuanyuan Li, Xiaonan Fu, Yuanyuan Qi, Juntao Wang, Zaixu Liu and Hongyan Yang
Molecules 2024, 29(5), 1063; https://doi.org/10.3390/molecules29051063 - 29 Feb 2024
Viewed by 467
Abstract
The electrochemical activity and stability of the PBCO electrode are investigated under the annealing processes in an atmosphere containing CO2/H2O for solid oxide fuel cells (SOFCs). The electrochemical impedance spectrum results unequivocally confirm the significant deterioration in PBCO cathode [...] Read more.
The electrochemical activity and stability of the PBCO electrode are investigated under the annealing processes in an atmosphere containing CO2/H2O for solid oxide fuel cells (SOFCs). The electrochemical impedance spectrum results unequivocally confirm the significant deterioration in PBCO cathode performance upon annealing under ambient air conditions, particularly when exposed to CO2/H2O atmospheres. Microstructure and surface chemical state analyses reveal the segregation of BaO on the PBCO surface, and the formation of insulating BaCO3 degraded the electrochemical performance. CO2 and H2O exhibit a significant induced effect on the segregation of Ba in PBCO to the surfaces, thereby causing a rapid decline in electrode performance. Additionally, the analysis of volume relaxation reveals that the presence of oxygen in the electrode environment can also influence the deposition process occurring on the surface of the electrode. However, this phenomenon is not observed in N2. This study emphasizes the impact of various gases present in the working atmosphere on surface-separated BaO, which consequently plays a pivotal role in the activity and long-term stability of PBCO electrodes. Full article
(This article belongs to the Special Issue Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 2nd Edition)
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14 pages, 18276 KiB  
Article
Fe2O3 Embedded in N-Doped Porous Carbon Derived from Hemin Loaded on Active Carbon for Supercapacitors
by Zitao Yang, Cunhao Luo, Ning Wang, Junshao Liu, Menglong Zhang, Jing Xu and Yongnan Zhao
Molecules 2024, 29(1), 146; https://doi.org/10.3390/molecules29010146 - 26 Dec 2023
Viewed by 683
Abstract
The high power density and long cyclic stability of N-doped carbon make it an attractive material for supercapacitor electrodes. Nevertheless, its low energy density limits its practical application. To solve the above issues, Fe2O3 embedded in N-doped porous carbon (Fe [...] Read more.
The high power density and long cyclic stability of N-doped carbon make it an attractive material for supercapacitor electrodes. Nevertheless, its low energy density limits its practical application. To solve the above issues, Fe2O3 embedded in N-doped porous carbon (Fe2O3/N-PC) was designed by pyrolyzing Hemin/activated carbon (Hemin/AC) composites. A porous structure allows rapid diffusion of electrons and ions during charge–discharge due to its large surface area and conductive channels. The redox reactions of Fe2O3 particles and N heteroatoms contribute to pseudocapacitance, which greatly enhances the supercapacitive performance. Fe2O3/N-PC showed a superior capacitance of 290.3 F g−1 at 1 A g−1 with 93.1% capacity retention after 10,000 charge–discharge cycles. Eventually, a high energy density of 37.6 Wh kg−1 at a power density of 1.6 kW kg−1 could be delivered with a solid symmetric device. Full article
(This article belongs to the Special Issue Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 2nd Edition)
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14 pages, 3624 KiB  
Article
ZnS/CoS@C Derived from ZIF-8/67 Rhombohedral Dodecahedron Dispersed on Graphene as High-Performance Anode for Sodium-Ion Batteries
by Miao Jia, Wenfeng Chen, Yilin He, Yutong Liu and Mengqiu Jia
Molecules 2023, 28(19), 6914; https://doi.org/10.3390/molecules28196914 - 03 Oct 2023
Viewed by 859
Abstract
Metal sulfides are highly promising anode materials for sodium-ion batteries due to their high theoretical capacity and ease of designing morphology and structure. In this study, a metal–organic framework (ZIF-8/67 dodecahedron) was used as a precursor due to its large specific surface area, [...] Read more.
Metal sulfides are highly promising anode materials for sodium-ion batteries due to their high theoretical capacity and ease of designing morphology and structure. In this study, a metal–organic framework (ZIF-8/67 dodecahedron) was used as a precursor due to its large specific surface area, adjustable pore structure, morphology, composition, and multiple active sites in electrochemical reactions. The ZIF-8/67/GO was synthesized using a water bath method by introducing graphene; the dispersibility of ZIF-8/67 was improved, the conductivity increased, and the volume expansion phenomenon that occurs during the electrochemical deintercalation of sodium was prevented. Furthermore, vulcanization was carried out to obtain ZnS/CoS@C/rGO composite materials, which were tested for their electrochemical properties. The results showed that the ZnS/CoS@C/rGO composite was successfully synthesized, with dodecahedrons dispersed in large graphene layers. It maintained a capacity of 414.8 mAh g−1 after cycling at a current density of 200 mA g−1 for 70 times, exhibiting stable rate performance with a reversible capacity of 308.0 mAh g−1 at a high current of 2 A g−1. The excellent rate performance of the composite is attributed to its partial pseudocapacitive contribution. The calculation of the diffusion coefficient of Na+ indicates that the rapid sodium ion migration rate of this composite material is also one of the reasons for its excellent performance. This study highlights the broad application prospects of metal–organic framework-derived metal sulfides as anode materials for sodium-ion batteries. Full article
(This article belongs to the Special Issue Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 2nd Edition)
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11 pages, 2635 KiB  
Article
Constructing Interconnected Microporous Structures in Carbon by Homogeneous Activation as a Sustainable Electrode Material for High-Performance Supercapacitors
by Huijie Li, Rui Ma, Feifei Chen, Danting Wang, Hongmin Zhang and Chunyang Lu
Molecules 2023, 28(19), 6851; https://doi.org/10.3390/molecules28196851 - 28 Sep 2023
Cited by 1 | Viewed by 656
Abstract
Microporous carbon attracts attention as an electrode material for supercapacitors. However, a large number of deep and distorted mesoporous and macroporous structures are usually created by non-uniform etching, resulting in underutilized internal space. Homogeneous activation has been considered by researchers as a necessary [...] Read more.
Microporous carbon attracts attention as an electrode material for supercapacitors. However, a large number of deep and distorted mesoporous and macroporous structures are usually created by non-uniform etching, resulting in underutilized internal space. Homogeneous activation has been considered by researchers as a necessary condition for the formation of interconnected microporous structures in carbon materials. Herein, a simple strategy of hydrothermal introduction of defects followed by homogeneous activation for the preparation of microporous carbon was developed for the synthesis of electrode materials for high-performance supercapacitors. The optimized sample with defect-enriched microporous structure and large specific surface area has a specific capacity of 315 F g−1 (1 A g−1) in KOH solution, and the assembled symmetric supercapacitor achieves a high energy density of 7.3 Wh kg−1 at a power density of 250 W kg−1. This work is interesting because it not only demonstrates that rational design of electrode materials is important to boost the performance of supercapacitors, but also provides inspiration for the design of efficient supercapacitors in the future. Full article
(This article belongs to the Special Issue Advanced Electrode Materials for Electrochemical Energy Storage and Conversion, 2nd Edition)
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