Ultrafast laser micromachining of hard carbon/fumed silica anodes for high-performance sodium-ion capacitors

Jo, Ajeong; Lee, Byunghak; Kim, Byeong Guk; Lim, Hyungsub; Han, Joong Tark; Jeong, Se Young; Kim, Jung Mo; Seo, Seon Hee; Jeong, Hee Jin; Lee, Geon-Woong; Baeg, Kang‐Jun; Jeong, Bosu; Park, Jong Hwan

doi:10.1016/j.carbon.2022.09.031

Cited by 15 publications

(8 citation statements)

References 48 publications

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“…However, the interaction of the remaining silanols with the -NH 2 on the silica surface, the bridging of SiÀ OÀ Si through hydrogen bonds, and the high surface energy all contribute to the formation of aggregates. [30] Moreover, these aggregations are caused by the hydration properties of silica, [8,9] which reflect neither the structure of the particles nor their reactivity in the polymer matrix.…”

Section: Characterization Of Silica Nanoparticlesmentioning

confidence: 99%

“…These membranes exhibit good mechanical strength and effectively mitigate the impact of reverse solute flux and concentration polarization. [8,9] Furthermore, the widely used thin-film composite (TFC) and thin-film nanocomposite (TFN) membranes have demonstrated capabilities in addressing various types of contamination, [10] including heavy metals, emerging pollutants, and dye contamination. Karki et al [11] employed TFN membranes prepared through vapor phase interfacial polymerization for the removal of heavy metal ions.…”

Section: Introductionmentioning

confidence: 99%

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APTMS‐Modified Silica as a Thin‐Film Nanocomposite Forward Osmosis Membranes: Towards Enhanced Selectivity and Dye Rejection Stability for Congo Red and Rhodamine B

Xu,

Zhu,

Zhou

et al. 2023

ChemistrySelect

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Fumed silica (SiO2) is often applied in the modification of thin‐film composite (TFC) forward osmosis (FO) membranes due to its hydrophilicity. However, a key challenge to be solved is to improve its compatibility with organic matrices and dispersion in the material. In this study, we synthesized well‐designed nanoparticles of (3‐aminopropyl)trimethoxysilane‐modified SiO2 (APTMS‐SiO2) and applied them for the first time in the preparation of FO membranes. Furthermore, we systematically investigated the effects of different pretreated SiO2, SiO2 dosages, draw solution types, and concentrations on FO membranes. The results showed that APTMS‐SiO2 thin‐film nanocomposite with a silica dosage of 0.1 wt.% has the highest water permeate flux (Jw) (26.25 LMH, 370.43 % higher than the control TFC of 5.58 LMH) and the minimum specific reverse solute flux (SRSF) of 0.17 g/L with 1 M NaCl as the draw. The incorporation of APTMS effectively prevented mutual agglomeration of SiO2 and improved its dispersion. The Jw of 13.36 LMH after seven cycles and the rejection of above 96.6 % for Congo Red and 95.8 % for Rhodamine B indicated potential reusability and dye rejection. This work presents an alternative approach to prepare FO membranes with enhanced water flux and increased selectivity, and it also offers insights for the treatment of printing and dyeing wastewater using FO.

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Section: Characterization Of Silica Nanoparticlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

APTMS‐Modified Silica as a Thin‐Film Nanocomposite Forward Osmosis Membranes: Towards Enhanced Selectivity and Dye Rejection Stability for Congo Red and Rhodamine B

Xu,

Zhu,

Zhou

et al. 2023

ChemistrySelect

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“…Besides experimental studies, 17–20 there are several theoretical investigations of Na-insertion in HCs. At the atomic level, the simplest models use density functional theory (DFT) to calculate the adsorption energy of Na in a graphite layer with some heteroatoms.…”

Section: Introductionmentioning

confidence: 99%

“…11 Among several anodes for NIBs, such as MXenes, 3 C 6 B 4 , 12 blue -phosphorene, 13 and 1H-BeP 2 , 14 hard carbon (HC) is a promising anode for NIBs because of stable cycling, large specific capacity, 15 and low-cost biomass product precursors. 15,16 Besides experimental studies, [17][18][19][20] there are several theoretical investigations of Na-insertion in HCs. At the atomic level, the simplest models use density functional theory (DFT) to calculate the adsorption energy of Na in a graphite layer with some heteroatoms.…”

Section: Introductionmentioning

confidence: 99%

An effective model for sodium insertion in hard carbons

Nguyen,

Latz

2023

Phys. Chem. Chem. Phys.

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“…Therefore, the demand for electrochemical energy storage systems has grown in the market globally. Lithium-ion batteries (LIBs) and supercapacitors (SCs) have been marked significantly in the field of energy storage [Lee et al, 2023;Jo et al, 2023;Li et al, 2023;Liu et al, 2023]. LIBs have a high energy density (Ed) of 150-250 Wh kg -1 , but their power density (Pd) is less than 1000 W kg -1 , which is generally insufficient, and their cycling stability is fairly restricted (1000 cycles).…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Oxides as the Electrode Material for Sodium-Ion Capacitors

Gupta¹,

Siwatch

Karwasra³

et al. 2023

Nanofab

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The research of energy-storage systems has been encouraged in the last ten years by the rapid development of portable electronic gadgets. Hybrid-ion capacitors are a novel kind of capacitor-battery hybrid energy storage device that has earned a lot of interest because of their high power density while maintaining energy density and a long lifecycle. Mostly, lithium-based energy storage technology is now being studied for use in electric grid storage. But the price increment and intermittent availability of lithium reserves make lithium-based commercialization unstable. Therefore, sodium-based technologies have been proposed as potential substitutes for lithium-based technologies. Sodium-ion capacitors (SICs) are acknowledged as potential innovative energy storage technologies which have lower standard electrode potentials and lower costs than lithium-ion capacitors. However, the large radius of the sodium ion also contributes to unfavorable reaction kinetics, low energy density, and brief lifespan of SICs. Recently, transition metal oxide (TMO)-based candidates have been considered potential due to the large theoretical capacity, environmental friendliness, and low cost for SICs. This brief study summarizes current advancements in research of TMOs and sodium-based TMOs as electrode candidates for SIC applications. Also, we have covered in detail the state of the exploration and upcoming prospects of TMOs for SICs.

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Ultrafast laser micromachining of hard carbon/fumed silica anodes for high-performance sodium-ion capacitors

Cited by 15 publications

References 48 publications

APTMS‐Modified Silica as a Thin‐Film Nanocomposite Forward Osmosis Membranes: Towards Enhanced Selectivity and Dye Rejection Stability for Congo Red and Rhodamine B

APTMS‐Modified Silica as a Thin‐Film Nanocomposite Forward Osmosis Membranes: Towards Enhanced Selectivity and Dye Rejection Stability for Congo Red and Rhodamine B

An effective model for sodium insertion in hard carbons

Transition Metal Oxides as the Electrode Material for Sodium-Ion Capacitors

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