Graphene-Based Two-Dimensional Mesoporous Materials: Synthesis and Electrochemical Energy Storage Applications

Park, Jong-Yoon; Lee, Jiyun; Kim, Seongseop; Hwang, Jongkook

doi:10.3390/ma14102597

Cited by 15 publications

(8 citation statements)

References 177 publications

(278 reference statements)

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“…Furthermore, the samples PAC-KOH and PAC-ZnCl 2 showed a sharp peak at around 1.5 nm. This sharp peak reflected that activating agents such as KOH and ZnCl 2 can create a high content of micropores (<2 nm [46]). These obviously increased pores (micropores and mesopores) will improve ion transport and ion storage in electrochemical performances [26,47].…”

Section: Resultsmentioning

confidence: 99%

Natural Porous Carbon Derived from Popped Rice as Anode Materials for Lithium-Ion Batteries

et al. 2022

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Popped rice carbons (PC) were derived from popped rice by using a facile and low-cost technique. PC was then activated by different kinds of activating agents, such as potassium hydroxide (KOH), zinc chloride (ZnCl2), iron (III) chloride (FeCl3), and magnesium (Mg), in order to increase the number of pores and specific surface area. The phase formation of porous activated carbon (PAC) products after the activation process suggested that all samples showed mainly graphitic, amorphous carbon, or nanocrystalline graphitic carbon. Microstructure observations showed the interconnected macropore in all samples. Moreover, additional micropores and mesopores were also found in all PAC products. The PAC, which was activated by KOH (PAC-KOH), possessed the largest surface area and pore volume. This contributed to excellent electrochemical performance, as evidenced by the highest capacity value (383 mAh g−1 for 150 cycles at a current density of 100 mA g−1). In addition, the preparation used in this work was very simple and cost-effective, as compared to the graphite preparation. Experimental results demonstrated that the PAC architectures from natural popped rice, which were activated by an optimal agent, are promising materials for use as anodes in LIBs.

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Section: Resultsmentioning

confidence: 99%

Natural Porous Carbon Derived from Popped Rice as Anode Materials for Lithium-Ion Batteries

et al. 2022

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“…The mesoporous are 2-50 nm materials with uniform pore size, high specific surface area, and high adsorption properties, making them useful for sensing applications, [60] Wang et al [61] produced multihydroxyl g-CDs by a one-step pyrolysis of citric acid. A new composite fluorescent probe was synthesized by the formation of covalent bonds between mesoporous SBA-15 functionalized with 3-glycidoxypropyltrimethoxysilane and multihydroxyl g-CDs, which had high selectivity and sensitivity for 2,4,6-trinitrophenol (TNP).…”

Section: Mesoporous Materialsmentioning

confidence: 99%

“…The mesoporous are 2–50 nm materials with uniform pore size, high specific surface area, and high adsorption properties, making them useful for sensing applications, [ 60 ] Wang et al. [ 61 ] produced multihydroxyl g‐CDs by a one‐step pyrolysis of citric acid.…”

Section: Surface Modification Of Green Carbon Dotsmentioning

confidence: 99%

Application Progress of Green Carbon Dots in Analysis and Detection

Zuo

et al. 2022

Part & Part Syst Charact

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Green chemistry is currently attracting more and more attention due to its eco‐friendly, and green carbon dots (g‐CDs) are creating a research boom. The g‐CDs have huge application prospects in analysis and detection due to their excellent optical properties, high biocompatibility, and low toxicity compared to other fluorescent materials. Based on the study of g‐CDs, the optical properties, synthesis methods, surface modification methods, and sensing mechanisms of g‐CDs are outlined, and the application in analysis and detection of environmental, food, biomolecules, and other organic small molecules are reviewed. At the same time, the challenges faced by g‐CDs are outlined. This review provides valuable references for further research and wider application of g‐CDs.

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“…Supercapacitor is an attractive electrochemical device that fulfills the requirement of all advanced electronic and electrical devices [1]. Supercapacitors have gained a lot of attention and have been employed in various fields, including various electronic devices, power supplies, and electric vehicles due to their high-power densities, rapid charge/discharge rates, and exceptional cycling stability [2][3][4][5]. Supercapacitors are divided into two categories depending on their charge storage capacity: 1) electrical double-layer capacitors (EDLCs) made of various carbon-based materials, while 2) pseudocapacitors made of transition metal oxides and other conductive polymers as active materials [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Perspective Chapter: Graphene Based Nanocomposites for Supercapacitor Electrodes

Ullah¹,

Khan²,

Rashid³

et al. 2023

Updates on Supercapacitors

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The demand for engineering and advancement of supercapacitor electrodes are increasing globally. To address the production and storage capacity of the supercapacitor electrodes, the development of new kind of composite materials are highly needful. To design materials with high surface area, excellent conductivity, porosity, and mechanical stability are the main critical points that need to be addressed. Various strategies have been utilized to fabricate excellent composite materials for supercapacitor electrodes. The effect of many composite materials was found to enhance the cyclability and storage capacities of the supercapacitor electrodes. In a class of materials, graphene-based nanocomposites and their derivatives were found to be the most excellent and suitable candidates to design and fabricate supercapacitor electrodes. The alliance of several active materials when analyzed with graphene and its derivatives was found to improve further the performance and stability of supercapacitor electrodes.

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Graphene-Based Two-Dimensional Mesoporous Materials: Synthesis and Electrochemical Energy Storage Applications

Cited by 15 publications

References 177 publications

Natural Porous Carbon Derived from Popped Rice as Anode Materials for Lithium-Ion Batteries

Natural Porous Carbon Derived from Popped Rice as Anode Materials for Lithium-Ion Batteries

Application Progress of Green Carbon Dots in Analysis and Detection

Perspective Chapter: Graphene Based Nanocomposites for Supercapacitor Electrodes

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