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Sam DK, Cao Y. Iron-Cobalt Nanoparticles Embedded in B,N-Doped Chitosan-Derived Porous Carbon Aerogel for Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32311-32321. [PMID: 38870486 DOI: 10.1021/acsami.4c06141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Given their intriguing properties, porous carbons have surfaced as promising electrocatalysts for various energy conversion reactions. This study presents a unique approach where iron-cobalt (FeCo) is confined in a boron, nitrogen-doped chitosan-derived porous carbon aerogel (BNPC-FeCo) to serve as an electrocatalyst for the hydrogen evolution and oxygen evolution reactions (HER and OER). The BNPC-FeCo-900 electrocatalyst demonstrates excellent catalyst activity, with very low overpotentials of 186 and 320 mV at 10 mA cm-2, low Tafel slopes of 82 and 55 mV dec-1, and low charge transfer resistance of 2.68 and 9.25 Ω for HER and OER, respectively. Density functional theory (DFT) calculations further reveal that the cooperation between the boron, nitrogen codoped porous carbon, and the FeCo nanoparticles reduces intermediates' energy barriers, significantly enhancing the HER and OER performance. In conclusion, this work offers significant and informative perspectives into the potential of porous carbon materials as dual-purpose electrocatalysts for water splitting.
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Affiliation(s)
- Daniel Kobina Sam
- School of Energy Science and Engineering, University of Science and Technology of China, Guangzhou 510640, China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
- CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
| | - Yan Cao
- School of Energy Science and Engineering, University of Science and Technology of China, Guangzhou 510640, China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
- CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
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Hegde SS, Bhat BR. Sustainable energy storage: Mangifera indica leaf waste-derived activated carbon for long-life, high-performance supercapacitors. RSC Adv 2024; 14:8028-8038. [PMID: 38454946 PMCID: PMC10918766 DOI: 10.1039/d3ra08910j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 02/28/2024] [Indexed: 03/09/2024] Open
Abstract
Biomass waste-derived activated carbon has a wide range of applications, including air and water purification, gas separation, energy storage, and catalysis. This material has become increasingly popular in recent years as a result of the growing demand for sustainable and eco-friendly materials. In this study, Mangifera indica leaf waste-derived activated carbon has been investigated as an electrode material for high-performance supercapacitors. The dried Mangifera indica leaves were first carbonized using FeCl3 and then activated using KOH to increase their surface area and pore structure at different temperatures. The activated carbon prepared at 725 °C has shown a high specific capacitance of 521.65 F g-1 at a current density of 0.5 A g-1 and also achieved an energy density of 17.04 W h kg-1 at a power density of 242.50 W kg-1 in the 6 M KOH electrolyte. Significantly, it has demonstrated remarkable electrochemical cycling stability, retaining 96.60% of its initial capacity even after undergoing 10 001 cycles at a scan rate of 500 mV s-1. The superior electrochemical performance of the activated carbon can be attributed to its high surface area of 1232.63 m2 g-1, well-distributed pore size, and excellent degree of graphitization, which all facilitate the rapid diffusion of ions and enhance the accessibility of the electrolyte to the electrode surface. Hence, this study provides a promising route for utilizing waste biomass as a low-cost, sustainable electrode material for energy storage devices.
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Affiliation(s)
- Shreeganesh Subraya Hegde
- Catalysis and Materials Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka Surathkal Mangalore 575025 Karnataka India
| | - Badekai Ramachandra Bhat
- Catalysis and Materials Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka Surathkal Mangalore 575025 Karnataka India
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Benwannamas N, Sangtawesin T, Yilmaz M, Kanjana K. Gamma-induced interconnected networks in microporous activated carbons from palm petiole under NaNO 3 oxidizing environment towards high-performance electric double layer capacitors (EDLCs). Sci Rep 2023; 13:12887. [PMID: 37558768 PMCID: PMC10412596 DOI: 10.1038/s41598-023-40176-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 08/06/2023] [Indexed: 08/11/2023] Open
Abstract
Activated carbons (ACs) were developed from palm petiole via a new eco-friendly method composed of highly diluted H2SO4 hydrothermal carbonization and low-concentration KOH-activating pyrolysis followed by gamma-induced surface modification under NaNO3 oxidizing environment. The prepared graphitic carbons were subsequently used as an active material for supercapacitor electrodes. The physiochemical properties of the ACs were characterized using field emission scanning electron microscope-energy dispersive X-ray spectroscopy, N2 adsorption/desorption isotherms with Brunauer-Emmett-Teller surface area analysis, Fourier transform infrared spectroscopy, X-ray diffraction and Raman spectroscopy. The electrochemical performance of the fabricated electrodes was investigated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. Even treated with extremely low H2SO4 concentration and small KOH:hydrochar ratio, the maximum SBET of 1365 m2 g-1 for an AC was obtained after gamma irradiation. This was attributed to radiation-induced interconnected network formation generating micropores within the material structure. The supercapacitor electrodes exhibited electric double-layer capacitance giving the highest specific capacitance of 309 F g-1 as well as excellent cycle stability within 10,000 cycles. The promising results strongly ensure high possibility of the eco-friendly method application in supercapacitor material production.
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Affiliation(s)
- Nurulsafeelanaria Benwannamas
- Department of Chemistry, School of Science, Walailak University, Tha Sala, Nakhon Si Thammarat, 80160, Thailand
- Functional Materials and Nanotechnology Center of Excellence, Walailak University, Tha Sala, Nakhon Si Thammarat, 80160, Thailand
| | - Tanagorn Sangtawesin
- Thailand Institute of Nuclear Technology, Ongkharak, Nakhon Nayok, 26120, Thailand
| | - Murat Yilmaz
- Department of Chemistry and Chemical Processing Technologies, Bahçe Vocational School, Osmaniye Korkut Ata University, 80000, Osmaniye, Turkey
| | - Kotchaphan Kanjana
- Department of Chemistry, School of Science, Walailak University, Tha Sala, Nakhon Si Thammarat, 80160, Thailand.
- Functional Materials and Nanotechnology Center of Excellence, Walailak University, Tha Sala, Nakhon Si Thammarat, 80160, Thailand.
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Zhang Q, Yan B, Feng L, Zheng J, You B, Chen J, Zhao X, Zhang C, Jiang S, He S. Progress in the use of organic potassium salts for the synthesis of porous carbon nanomaterials: microstructure engineering for advanced supercapacitors. NANOSCALE 2022; 14:8216-8244. [PMID: 35665796 DOI: 10.1039/d2nr01986h] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Porous carbon nanomaterials (PCNs) are widely applied in energy storage devices. Traditionally, PCNs were mainly synthesized by activation and templating methods, which are time-consuming, tedious, corrosive and relatively high cost. Therefore, the development of easier and greener methods to produce PCNs is of great significance. Recently, organic potassium salts (OPSs) emerged as versatile reagents for synthesizing PCNs. The OPS-based synthesis of PCNs can avoid the use of large amounts of corrosive chemical agents. Potassium carbonate generated in situ from the decomposition of OPSs could serve as both a green activation agent and a water-removable template to produce nanopores. Potassium oxide and potassium formed at higher temperature could generate additional porosity, contributing to a highly porous architecture. The carbon-rich organic moiety could function as a carbon precursor and chemical blowing agent. This review aims to elucidate the multifunctionality of OPSs in the synthesis of PCNs and the capacitive performance of the corresponding PCNs. To this end, recent progress on the capacitive performance of PCNs synthesized from OPSs is summarized. This review provides constructive viewpoints for the cost-effective and green synthesis of PCNs with the aid of OPSs for application in supercapacitors.
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Affiliation(s)
- Qian Zhang
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Bing Yan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Li Feng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Jiaojiao Zheng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Bo You
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan, Hubei 430074, China.
| | - Jiayun Chen
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Xin Zhao
- School of Science, Wuhan University of Technology, Wuhan, Hubei 430070, China.
| | - Chunmei Zhang
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shaohua Jiang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Shuijian He
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
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N-doped porous carbon nanofibers inlaid with hollow Co3O4 nanoparticles as an efficient bifunctional catalyst for rechargeable Li-O2 batteries. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64017-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Feng L, Chang Y, Song H, Hou W, Li Y, Zhao Y, Xiao Y, Han G. N, S co-doped porous carbon with high capacitive performance derived from heteroatom doped phenolic resin. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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