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Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials
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Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Carbon Materials".

Deadline for manuscript submissions: closed (20 December 2024) | Viewed by 6383

Special Issue Editors

Prof. Dr. Zhenhuan Li

E-Mail Website
Guest Editor
School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
Interests: porous carbon nanomaterials; electrocatalysis; heterogeneous catalytic materials
Dr. Nanping Deng

E-Mail Website
Co-Guest Editor
1. State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
2. School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
Interests: heterogeneous catalytic materials; carbon nanomaterials; lithium metal battery
Prof. Dr. Weimin Kang

E-Mail Website
Co-Guest Editor
School of Material Science and Engineering, Tiangong University, Tianjin 300387, China
Interests: electrospun nanofibers; nanofiber membrane; inorganic nanofibers

Special Issue Information

Dear Colleagues,

In the sustainable energy storage system, various secondary batteries can provide a large amount of electric energy. However, the power density of these secondary batteries cannot meet the energy demand of higher power. Supercapacitors have the advantages of a fast charge and discharge rate, high power density and long life cycle when compared to commercial lithium-ion batteries, so they have become an important energy storage application in many aspects. However, the energy density of supercapacitors is low and cannot meet the development of today's society regarding the energy system. Therefore, it is very important to synthesize electrode materials with good electrochemical properties to promote the wide application of supercapacitors. Porous carbon materials, especially nanostructured porous carbon materials, have become the main electrode materials for commercial capacitors due to their large surface area, high conductivity, low cost and high chemical stability.

This Special Issue, “Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials”, will focus on the research and development of advanced nanostructured porous carbon materials for supercapacitors. Designs and preparations with a low cost and brief operation process based on creating novel porous carbon nanomaterials, combining various porous carbon nanomaterials, and modifying porous carbon nanomaterials are all effective ways to obtain excellent performance for the practical application of high-performance supercapacitors. Original research articles and reviews dealing with advanced porous carbon nanomaterials in the field of materials, novel preparation methods, creatively designed and controllable structures, and system development are all welcome. In addition, combined with the advantages of lithium-ion batteries and supercapacitors, submissions dealing with high-performance lithium-ion capacitors developed with porous carbon nanomaterials are also encouraged in the issue. Additionally, physicochemical characterization strategies for porous carbon nanomaterials, as well as the mathematical modeling of structure-property relationships, will also be encompassed in this Special Issue.

Prof. Dr. Zhenhuan Li
Dr. Nanping Deng
Prof. Dr. Weimin Kang
Guest Editors

Manuscript Submission Information

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Keywords

  • supercapacitors
  • porous carbon nanomaterials
  • novel preparation methods
  • creatively designed and controllable structures
  • high-performance lithium-ion capacitor
  • mathematical modeling
  • structure-property relationships

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Published Papers (3 papers)

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Research

19 pages, 8888 KiB  
Article
Preparation of N-Doped Layered Porous Carbon and Its Capacitive Deionization Performance
by Rui Liu, Shouguang Yao, Yan Shen, Yu Tian and Qiqi Zhang
Materials 2023, 16(4), 1435; https://doi.org/10.3390/ma16041435 - 8 Feb 2023
Cited by 4 | Viewed by 1728
Abstract
In this study, N-doped layered porous carbon prepared by the high-temperature solid-state method is used as electrode material. Nano calcium carbonate (CaCO3) (40 nm diameter) is used as the hard template, sucrose (C12H22O11) as the [...] Read more.
In this study, N-doped layered porous carbon prepared by the high-temperature solid-state method is used as electrode material. Nano calcium carbonate (CaCO3) (40 nm diameter) is used as the hard template, sucrose (C12H22O11) as the carbon source, and melamine (C3H6N6) as the nitrogen source. The materials prepared at 850 °C, 750 °C, and 650 °C are compared with YP-50F commercial super-activated carbon from Japan Kuraray Company. The electrode material at 850 °C pyrolysis temperature has a higher specific surface area and more pores suitable for ion adsorption. Due to these advantages, the salt adsorption capacity (SAC) of the N-doped layered porous carbon at 850 °C reached 12.56 mg/g at 1.2 V applied DC voltage, 500 mg/L initial solution concentration, and 15 mL/min inlet solution flow rate, which is better than the commercial super activated carbon as a comparison. In addition, it will be demonstrated that the N-doped layered porous carbon at 850 °C has a high salt adsorption capacity CDI performance than YP-50F by studying parameters with different applied voltages and flow rates as well as solution concentrations. Full article
(This article belongs to the Special Issue Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials)
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12 pages, 2492 KiB  
Article
Template-Mediated Synthesis of Hierarchically Porous Metal–Organic Frameworks for Efficient CO2/N2 Separation
by Tianjie Qiu, Song Gao, Yanchun Fu, Dong Xu and Dekai Kong
Materials 2022, 15(15), 5292; https://doi.org/10.3390/ma15155292 - 31 Jul 2022
Cited by 5 | Viewed by 1938
Abstract
Carbon dioxide (CO2) is generally unavoidable during the production of fuel gases such as hydrogen (H2) from steam reformation and syngas composed of carbon monoxide (CO) and hydrogen (H2). Efficient separation of CO2 from these gases [...] Read more.
Carbon dioxide (CO2) is generally unavoidable during the production of fuel gases such as hydrogen (H2) from steam reformation and syngas composed of carbon monoxide (CO) and hydrogen (H2). Efficient separation of CO2 from these gases is highly important to improve the energetic utilization efficiency and prevent poisoning during specific applications. Metal–organic frameworks (MOFs), featuring ordered porous frameworks, high surface areas and tunable pore structures, are emerging porous materials utilized as solid adsorbents for efficient CO2 capture and separation. Furthermore, the construction of hierarchical MOFs with micropores and mesopores could further promote the dynamic separation processes, accelerating the diffusion of gas flow and exposing more adsorptive pore surface. Herein, we report a simple, efficient, one-pot template-mediated strategy to fabricate a hierarchically porous CuBTC (CuBTC-Water, BTC = 1,3,5-benzenetricarboxylate) for CO2 separation, which demonstrates abundant mesopores and the superb dynamic separation ability of CO2/N2. Therefore, CuBTC-Water demonstrated a CO2 uptake of 180.529 cm3 g−1 at 273 K and 1 bar, and 94.147 cm3 g−1 at 298 K and 1 bar, with selectivity for CO2/N2 mixtures as high as 56.547 at 273 K, much higher than microporous CuBTC. This work opens up a novel avenue to facilely fabricate hierarchically porous MOFs through one-pot synthesis for efficient dynamic CO2 separation. Full article
(This article belongs to the Special Issue Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials)
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10 pages, 4253 KiB  
Article
Dual-Metal Zeolitic Imidazolate Framework Derived Highly Ordered Hierarchical Nanoarrays on Self-Supported Carbon Fiber for Oxygen Evolution
by Xi Du, Wenjun Zhang, Maliang Zhang, Yanhong Ji, Kunmei Su and Zhenhuan Li
Materials 2022, 15(12), 4170; https://doi.org/10.3390/ma15124170 - 12 Jun 2022
Cited by 2 | Viewed by 2091
Abstract
The construction of highly ordered hierarchical nanoarrays is crucial for obtaining effective transition metal carbon nanomaterial electrocatalysts for oxygen evolution reaction (OER) in water splitting. Herein, we adopted a Co metal zeolitic imidazolate framework (Co-ZIF) as a precursor by ion-exchange/etching reaction with Fe(NO [...] Read more.
The construction of highly ordered hierarchical nanoarrays is crucial for obtaining effective transition metal carbon nanomaterial electrocatalysts for oxygen evolution reaction (OER) in water splitting. Herein, we adopted a Co metal zeolitic imidazolate framework (Co-ZIF) as a precursor by ion-exchange/etching reaction with Fe(NO3)3 to obtain hierarchical N-doped Co-Fe layered double hydroxide (CoFe-LDH) in situ generated in Co-ZIF nanoarrays based on a self-supported carbon cloth (CC) substrate noted as CoFe-LDH@Co-ZIF@CC. Benefiting from the synergistic effect of these species and their highly ordered self-supported nanoarray structure, the catalytic active sites were fully exposed and highly protected in alkaline electrolyte, which significantly promoted electron transport and improved electrochemical performance. The CoFe-LDH@Co-ZIF@CC exhibited the low overpotentials of about 225 and 319 mV at 10 and 100 mA cm−2 with a small Tafel slope of 81.8 mV dec−1 recorded in a 1.0 M KOH electrolyte. In addition, it also showed a long-term durability without obvious decay after 30 h. Therefore, its remarkable OER activity demonstrates this material’s promising application in the green hydrogen energy industry. Full article
(This article belongs to the Special Issue Fabrication, Structure, and Supercapacitance of Porous Carbon Nanomaterials)
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