Journal of Energy Storage, Год журнала: 2024, Номер 107, С. 114851 - 114851
Опубликована: Дек. 10, 2024
Язык: Английский
Journal of Energy Storage, Год журнала: 2023, Номер 79, С. 110152 - 110152
Опубликована: Дек. 27, 2023
Язык: Английский
Процитировано
130
RSC Advances, Год журнала: 2023, Номер 13(40), С. 28063 - 28075
Опубликована: Янв. 1, 2023
Herein, nanostructured Gd-doped ZnFe2O4 (GZFO) has been synthesized via the sol-gel route and its CNT-reinforced nanohybrid was formed an advanced ultrasonication method. The as-synthesized, hybrid electroactive materials have supported on aluminum foil (AF) to design a flexible electrode for capacitor (HC) applications. Nanostructured material synthesis, Gd-doping, CNT reinforcement approaches adopted develop rationally designed with high surface area, boosted electrical conductivity, enhanced specific capacitance. Electrochemical impedance spectroscopy, galvanostatic charge/discharge, cyclic voltammetry processes used measure electrochemical performance of prepared ferrite material-based working electrodes in 3M KOH solution. A nanohybrid-based (GZFO/C@AF) shows superior rate capacitive aptitude (specific capacitance, performance, activity) than counterpart (ZFO@AF GZFO@AF). (GZFO/C@AF electrode) capacitance 887 F g-1 good retention 94.5% 7000 cycles (at 15 Ag-1). maximum energy density power values GZFO/C@AF are 40.025 Wh Kg-1 279.78 W Kg-1, respectively. Based findings experiments, promise as capacitors that provide wearable electronic devices.
Язык: Английский
Процитировано
124
Energies, Год журнала: 2023, Номер 16(6), С. 2865 - 2865
Опубликована: Март 20, 2023
The problem of global warming and climate change has attracted attention, reducing the concentration CO2 in atmosphere is an important step towards solving problem. This paper mainly introduces current development status, research hotspots, challenges some emerging technologies carbon capture, utilization storage (CCUS). Among capture technologies, solvent absorption technology currently most mature widely used technology, among which ionic liquid great application prospects because its molecular structure can be designed different functional groups connected. surface functionalization metal–organic frameworks adsorption method endows them with excellent capacity. In transportation, temperature pressure must considered pipeline they will affect phase state transportation. impact impurities on transportation a challenge that affects design safety. utilization, key to enhanced oil recovery, gas recovery displacement coalbed methane increase rate capacity at same time. Only by strengthening behavior between CH4 revealing relevant mechanism innovative developed. chemical formed many routes, but all lack certain advantages. Most scholars are working catalysts for conversion, especially copper-based convert into methanol. conversion effectively increased through doping or process improvement. coupling electrocatalytic renewable energy direction future. storage, geological method, saline aquifers. There critical issues concerning reservoir integrity leakage potential should further investigated. cause serious environmental problems, common monitoring methods reviewed discussed this paper. Finally, hotspots cooperation networks CCUS summarized using CiteSpace software order help technology. addition, review analysis, it found faced such as low efficiency, difficulties transformation high operating costs, strong support policies, international cooperation, restrict CCUS.
Язык: Английский
Процитировано
74
Small, Год журнала: 2023, Номер 19(33)
Опубликована: Апрель 24, 2023
A simple and scalable method to fabricate a novel high-energy asymmetric supercapacitor using tomato-leaf-derived hierarchical porous activated carbon (TAC) electrochemically deposited polyaniline (PANI) for battery-free heart-pulse-rate monitor is reported. In this study, TAC prepared by pyrolysis, exhibiting nanosheet-type morphology high specific surface area of ≈1440 m2 g-1 , PANI onto cloth. The TAC- PANI- based demonstrates an electrochemical performance superior that symmetric supercapacitors, delivering capacitance 248 mF cm-2 at current density 1.0 mA . developed shows energy 270 µWh power 1400 µW as well excellent cyclic stability ≈95% retention after 10 000 charging-discharging cycles while maintaining ≈98% Coulombic efficiency. Impressively, the series-connected supercapacitors can operate extremely efficiently upon solar-panel charging under regular laboratory illumination.
Язык: Английский
Процитировано
63
Small, Год журнала: 2023, Номер 20(22)
Опубликована: Дек. 27, 2023
Abstract Developing efficient, lightweight, and durable all‐solid‐state supercapacitors is crucial for future energy storage systems. The study focuses on optimizing electrode materials to achieve high capacitance stability. This introduces a novel two‐step pyrolysis process synthesize activated carbon nanosheets from jute sticks (JAC), resulting in an optimized JAC‐2 material with yield (≈24%) specific surface area (≈2600 m 2 g −1 ). Furthermore, innovative situ synthesis approach employed hybrid nanocomposites (NiCoLDH‐1@JAC‐2) by integrating JAC nickel‐cobalt‐layered double hydroxide nanoflowers (NiCoLDH). These serve as positive the negative asymmetric (HSCs), exhibiting remarkable performance metrics. HSCs of 750 F , capacity 209 mAh (at 0.5 A ), density 100 Wh kg 250 W ) using PVA/KOH solid electrolyte, while maintaining outstanding cyclic Importantly, functional theory framework utilized validate experimental findings, underscoring potential this enhancing HSC enabling large‐scale production transition metal‐based layered hydroxides.
Язык: Английский
Процитировано
54
The Chemical Record, Год журнала: 2023, Номер 24(1)
Опубликована: Май 24, 2023
Abstract Polyaniline (PANI) has piqued the interest of nanotechnology researchers due to its potential as an electrode material for supercapacitors. Despite ease synthesis and ability be doped with a wide range materials, PANI′s poor mechanical properties have limited use in practical applications. To address this issue, investigated using PANI composites materials highly specific surface areas, active sites, porous architectures, high conductivity. The resulting composite improved energy storage performance, making them promising Here, we provide overview recent developments PANI‐based supercapacitors, focusing on electrochemically carbon redox‐active composites. We discuss challenges opportunities synthesizing supercapacitor Furthermore, theoretical insights into electrical their materials. need review stems from growing improve performance. By examining progress field, comprehensive current state‐of‐the‐art This adds value by highlighting associated utilizing composites, thereby guiding future research directions.
Язык: Английский
Процитировано
53
Journal of Power Sources, Год журнала: 2024, Номер 602, С. 234334 - 234334
Опубликована: Март 21, 2024
Язык: Английский
Процитировано
38
The Chemical Record, Год журнала: 2024, Номер 24(5)
Опубликована: Апрель 15, 2024
Energy harvesting and energy storage are two critical aspects of supporting the transition sustainability. Many studies have been conducted to achieve excellent performance devices for these purposes. As energy-storing devices, supercapacitors (SCs) tremendous potential be applied in several sectors. Some electrochemical characterizations define SCs. Electrochemical impedance spectroscopy (EIS) is one most powerful analyses determine parameters obtained from this analysis include bulk resistance, charge-transfer total specific capacitance, response frequency, time. This work provides a holistic comprehensive review utilizing EIS SC characterization. Overall, researchers can benefit by gaining understanding utilization characterizing (SCs), enabling them enhance contribute advancement technologies.
Язык: Английский
Процитировано
38
iScience, Год журнала: 2024, Номер 27(2), С. 108786 - 108786
Опубликована: Янв. 4, 2024
Micro-supercapacitors (MSCs) stand out in the field of micro energy storage devices due to their high power density, long cycle life, and environmental friendliness. The key improving electrochemical performance MSCs is selection appropriate electrode materials. To date, both composition structure materials have become a hot research topic, it urgent compose review highlight most important achievements, major challenges, opportunities, encouraging perspectives this field. In review, background first reviewed followed by working principles, structural classifications, physiochemical characterization techniques. Next, various preparation methods are summarized, relationship between MSC discussed depth. Finally, provides comprehensive suggestion on accelerating development facilitate commercialization MSCs.
Язык: Английский
Процитировано
17
Batteries, Год журнала: 2024, Номер 10(5), С. 168 - 168
Опубликована: Май 20, 2024
Modern research has made the search for high-performance, sustainable, and efficient energy storage technologies a main focus, especially in light of growing environmental energy-demanding issues. This review paper focuses on pivotal role biomass-derived carbon (BDC) materials development high-performance metal-ion hybrid supercapacitors (MIHSCs), specifically targeting sodium (Na)-, potassium (K)-, aluminium (Al)-, zinc (Zn)-ion-based systems. Due to their widespread availability, renewable nature, exceptional physicochemical properties, BDC are ideal supercapacitor electrodes, which perfectly balance sustainability technological advancement. delves into synthesis, functionalization, structural engineering advanced biomass-based materials, highlighting strategies enhance electrochemical performance. It elaborates unique characteristics these carbons, such as high specific surface area, tuneable porosity, heteroatom doping, achieving superior capacitance, density, cycling stability Na-, K-, Al-, Zn-ion supercapacitors. Furthermore, compatibility BDCs with electrolytes facilitating ion transport charge mechanisms critically analysed. Novelty arises from comprehensive comparison across systems, unveiling synergistic effects BDCs’ attributes performance each type. also casts current challenges, scalability, cost-effectiveness, consistency, offering insightful perspectives future research. underscores transformative potential MIHSCs paves way next-generation that both high-performing ecologically friendly. calls continued innovation interdisciplinary collaboration explore sustainable thereby contributing advancing green technologies.
Язык: Английский
Процитировано
16