Fuel, Год журнала: 2024, Номер 381, С. 133320 - 133320
Опубликована: Окт. 1, 2024
Язык: Английский
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(31), С. 40858 - 40872
Опубликована: Июль 22, 2024
Nitrogen-doped carbon materials, characterized by abundant microporous and nitrogen functionalities, exhibit significant potential for dioxide capture supercapacitors. In this study, a class of porous organic polymer (POP) were successfully synthesized linking Cr-TPA-4BZ-Br4 tetraethynylpyrene (Py-T). The model benzoxazine monomers Cr-TPA-4BZ using the traditional three-step method [involving CH═N formation, reduction NaBH4, Mannich condensation]. Subsequently, Sonogashira coupling reaction connected Py-T monomers, forming Cr-TPA-4BZ-Py-POP. successful synthesis Cr-TPA-4BZ-Py-POP was confirmed through various analytical techniques. After verifying Cr-TPA-4BZ-Py-POP, carbonization KOH activation procedures conducted. These crucial steps led to formation poly(Cr-TPA-4BZ-Py-POP)-800, material with structure akin graphite. practical applications, poly(Cr-TPA-4BZ-Py-POP)-800 exhibited noteworthy CO2 adsorption capacity 4.4 mmol/g, along specific capacitance values 397.2 159.2 F g–1 at 0.5 A (measured in three-electrode cell) 1 symmetric coin cell), respectively. exceptional dual capabilities stem from optimal ratio heteroatom doping. outstanding performance holds promise addressing contemporary energy environmental challenges, making substantial contributions both sectors.
Язык: Английский
Процитировано
30
JACS Au, Год журнала: 2024, Номер 4(9), С. 3593 - 3605
Опубликована: Авг. 16, 2024
Conjugated microporous polymers (CMPs) feature extended excellent porosity properties and fully conjugated electronic systems, making them highly effective for several uses, including photocatalysis, dye adsorption, CO2 capture, supercapacitors, so on. These are known their high specific surface area adjustable porosity. To synthesize DHTP-CMPs (specifically TPE-DHTP CMP Anthra-DHTP CMP) with abundant nitrogen (N) oxygen (O) adsorption sites spherical structures, we employed a straightforward Schiff-base [4 + 2] condensation reaction. This involved using 2,5-dihydroxyterephthalaldehyde (DHTP-2CHO) as the primary building block phenolic OH group source, along two distinct structures: 4,4′,4″,4"'-(ethene-1,1,2,2-tetrayl)tetraaniline (TPE-4NH2) 4,4′,4″,4"'-(anthracene-9,10-diylidenebis(methanediylylidene))tetraaniline (Anthra-4Ph-4NH2). The synthesized had remarkable BET (BETSA) of 431 m2 g–1. Additionally, it exhibited outstanding thermal stability, shown by Td10 505 °C. Furthermore, practical implementation, demonstrates significant capacity capturing CO2, measuring 1.85 mmol g–1 at temperature 273 K 1 bar. In three-electrode test, has capacitance 121 F 0.5 A even after undergoing 5000 cycles, maintains retention rate 79%. Due to pore characteristics, N O, conjugation properties, this Anthtra-DHTP holds potential capture supercapacitor applications. work will pave way development materials based on postmodification additional groups, facilitating use in photodegradation, lithium battery applications,
Язык: Английский
Процитировано
20
Polymer, Год журнала: 2024, Номер 300, С. 126988 - 126988
Опубликована: Март 31, 2024
Язык: Английский
Процитировано
16
ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(20), С. 7739 - 7747
Опубликована: Май 9, 2024
A biobased reprocessable and degradable polybenzoxazine vitrimer was prepared by introducing dynamic imine bonds. An aldehyde-containing benzoxazine monomer (VSA) synthesized through the Mannich reaction of vanillin, stearylamine, paraformaldehyde, then VSA reacted with 1,12-dodecanediamine to prepare an imine-containing (VSA-dda). The curing behaviors VSA-dda were characterized in situ Fourier-transform infrared spectroscopy differential scanning calorimetry. exchange bonds within cross-linked network (PVSA-dda) studied stress relaxation experiments. Due presence bonds, PVSA-dda could be reprocessed hot-pressing at 140 °C under 2 MPa. exhibited a shape memory property recover its original heating 100 °C. degradation performance investigated various conditions, results showed that degraded 29 min acidic solution tetrahydrofuran water 50
Язык: Английский
Процитировано
15
ACS Applied Polymer Materials, Год журнала: 2024, Номер 6(15), С. 9170 - 9179
Опубликована: Июль 22, 2024
Язык: Английский
Процитировано
13
ACS Applied Energy Materials, Год журнала: 2024, Номер 7(13), С. 5582 - 5593
Опубликована: Июнь 22, 2024
Various energy storage systems widely utilize conjugated microporous polymers (CMPs) due to their porous architecture and expansive surface area, which facilitate efficient ion transport storage. In our research, we developed two anthraquinone (ATQ)-based CMPs (ATQ-CMPs) through a Sonogashira coupling method. We used 2,6-dibromoanthraquinone (ATQ-Br2), redox-active precursor, as building monomer along with an ethynyl derivative of triphenylamine (TPA-T) tetrabenzonaphthalene (TBN-T) afford TPA-ATQ CMP TBN-ATQ CMP, respectively. employed techniques, such thermogravimetric analysis, high-resolution transmission electron microscopy (HR-TEM), scanning (SEM), Fourier-transform infrared spectroscopy (FTIR), characterize the structure thermal properties these ATQ-CMPs. The displayed extensive Brunauer–Emmett–Teller (BET) areas (SBET = 161 m2 g–1) remarkable stability (temperatures up 605 °C). These made it excellent candidate for supercapacitor (SC) electrode materials. electrodes fabricated using exhibited exceptionally significant specific capacitance 393 F g–1 when tested at current density 1 A g–1. After 5000 cycles 10 g–1, still had 74.2% in three-electrode setup. also symmetrical device CMP. This 175 was very stable over 2000 cycles, keeping 92.8% its capacitance. has better electrochemical performance because ATQ unit high SBET. Our findings pave way simple methods developing producing materials TBN high-performance SCs both three- two-electrode configurations.
Язык: Английский
Процитировано
12
ACS Applied Polymer Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
11
ACS Applied Energy Materials, Год журнала: 2024, Номер 7(17), С. 7505 - 7516
Опубликована: Авг. 22, 2024
Supercapacitors (SCs), with their exceptional properties, offer a promising solution to the ongoing energy crisis, addressing growing demand for high-energy storage devices. Polymeric organic porous materials (POIPs) exhibit various sizes, precisely controlled porosities, lightweight nature, extensive surface areas, impressive intrinsic porosity, attractive chemistry, outstanding stability, and customizable structures functionalities. These features collectively render POIPs as cost-effective material applications in storage. This study successfully synthesized an octavinylsilsesquioxane (OVS)-FO-POIP through Heck coupling reaction between OVS 2,7-dibromo-9H-fluoren-9-one (DBFO). Confirmation of OVS-FO-POIP's chemical structure was achieved using solid-state 13C 29Si NMR Fourier transform infrared analyses. Subsequently, carbonization KOH activation at 900 °C yielded carbon material, denoted OVS-FO-POIP-900. Microporous characteristics were evidenced by specific area (SBET) values 264 m2 g–1 OVS-FO-POIP 387 OVS-FO-POIP-900 corresponding pore diameters 1.90 1.59 nm, respectively. Notably, demonstrated improved particular capacitance 776 F compared that (271 g–1) current density 1 A g–1, addition retention up 79% after 6000 cycles. The heightened enhances probability electrochemical reactions, thereby elevating levels. To delve deeper into performance, symmetric devices constructed both OVS-FO-POIP-900, exhibiting capacitances 167 268 Remarkably, performance these assessments, suggesting its potential suitability SC applications.
Язык: Английский
Процитировано
10
Materials Today Chemistry, Год журнала: 2025, Номер 44, С. 102538 - 102538
Опубликована: Янв. 21, 2025
Язык: Английский
Процитировано
2
European Polymer Journal, Год журнала: 2025, Номер 227, С. 113786 - 113786
Опубликована: Янв. 31, 2025
Язык: Английский
Процитировано
2