Published: Jan. 1, 2023
Language: Английский
Physics and Chemistry of the Earth Parts A/B/C, Journal Year: 2024, Volume and Issue: 135, P. 103698 - 103698
Published: Aug. 10, 2024
In the past decade, electrochemical capacitors (ECs) have emerged as innovative energy storage devices, attracting considerable interest from both industrial and academic sectors due to their prolonged cyclic stability impressive power density. Recently, there has been a focus on advancing high-performance ECs by developing electrode material composed of metal oxide incorporated with porous carbon. Integrating oxides into carbon structure enhances capacitance, charge storage, stability. Furthermore, inherent in materials offers efficient ion diffusion large surface area, thereby augmenting overall effectiveness nanocomposites. Efficient electron transport within electrode's bulk is achieved through interaction between electrodes electrolytes occurring at electrode-electrolyte interface, subsequently increasing capacitance. This paper summarizes latest developments ECs, focusing key performance metrics such It also recent advancements made materials, emphasizing utilization sustainable feedstocks. As research landscape shifts towards more environmentally friendly solutions, incorporation bio-materials design gained significant attention. particularly highlights underlying mechanisms governing oxides/porous nanocomposites outlines future directions aimed maximizing potential for next-generation devices. Additionally, delves possibilities challenges associated preparation, optimization incorporating improve ECs.
Language: Английский
Citations
9
Electrochimica Acta, Journal Year: 2024, Volume and Issue: 495, P. 144489 - 144489
Published: May 26, 2024
Language: Английский
Citations
4
Biotechnology and Applied Biochemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 9, 2025
Dengue fever, a mosquito-borne viral infection, poses significant global health challenge, particularly in tropical and subtropical regions. The absence of non-effective vaccines specific treatments underscores the need for advanced diagnostic tools early detection management. This study presents novel biosensor detecting dengue virus type 4 (DENV-4) by combining carbonyldiimidazole nanoflower (CDI-NF) with Mn3O4 on laser-scribed graphene (LSG). Material characterization techniques, including Raman spectroscopy, TEM, XRD, XPS, FTIR, were employed to confirm successful integration CDI-NF, resulting unique 3D flower-like structure. In order verify sensing efficiency, selective DNA sample captured LSG/Mn3O4-CDI-NF was investigated specifc binding Aedes aegypti target through hybridization mismatch analysis. Electrochemical impedance studies further confirmed sensitive up 1 fM, where sensitivity large transfer resistance (Rct) before after regression coefficient 0.97373. EIS results demonstrated surface modifications biosensor's specificity distinguishing between complementary, mismatched, non-complementary sequences. ability differentiate these sequences highlights its potential accurate targeted DENV-4 detection, offering promising avenue advancing diagnostics.
Language: Английский
Citations
0
Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1321, P. 139833 - 139833
Published: Aug. 30, 2024
Language: Английский
Citations
3
Materials, Journal Year: 2023, Volume and Issue: 16(2), P. 861 - 861
Published: Jan. 16, 2023
In this study, boron carbide powders consisting mainly of nano/micro fibers or polyhedral-equiaxed particles were synthesized via the sol-gel technique, and influence particle morphology on electrochemical performance electrodes was investigated. Thermal decomposition duration precursors played a determinant role in final powders. The successfully tuned from (with ~3 µm average size) to by adjusting thermal precursors. length thickness range 30 200 sub-micron 5 µm, respectively. analysis has shown that considerable impact performance. It found synergetic effects fiber morphologies exhibited best supercapacitor devices, resulting power energy density 34.9 W/kg 0.016 Wh/kg,
Language: Английский
Citations
8
ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(38), P. 14081 - 14093
Published: Sept. 11, 2023
An innovative and cost-efficient method of coproduction electricity ammonia through solid oxide fuel cells (SOFCs) by implementing a transition metal nitride (MnxNy) catalyst on the electrode is focus work. Breaking molecular nitrogen (N≡N) with simultaneous enhancement in electrochemical performance Ni-ScSZ-supported-SOFC was achieved using (Mn4N) catalysts electrode. Ex situ X-ray diffraction photoelectron spectroscopy revealed chemical stability MnxNy under H2 N2 atmospheres cell operating conditions. The reduction reaction (NRR) at Mn4N active sites measured via hydrogenation lattice formation metallic Mn followed renitrification catalyst. Electrochemical impedance analysis catalyst-modified improved hydrogen oxidation activity NRR during operation. exhibited peak power densities 539 374 mW·cm–2 for humidified (3 wt %) dry N2/H2 (1:1) mixture, respectively. Furthermore, high rate production 1.63 × 10–9 mol·cm–2·s–1 density 348 were when operated 800 °C.
Language: Английский
Citations
6
Materials, Journal Year: 2023, Volume and Issue: 16(13), P. 4687 - 4687
Published: June 29, 2023
In this work, we reported the electrochemical performance of a type carbon fabric-based supercapacitor by coating MnOx@rGO nanohybrids on fabric with simple one-step hydrothermal method. We studied mass ratio MnOx to rGO properties supercapacitors. found that as is 0.8:1 for MnO@rGO, loading 5.40 mg cm-2 MnO@rGO exhibits specific capacitance 831.25 mF at 0.1 mA current density. It also shows long-term cycling retention 97.2% after 10,000 charge-discharge cycles density 0.4 cm-2. speculate high results from strong interfacial bonding between hierarchical architecture and fabric.
Language: Английский
Citations
2
Deleted Journal, Journal Year: 2024, Volume and Issue: 2, P. 100002 - 100002
Published: June 1, 2024
Mixed polycation transition metal ferrites are known to exhibit unique and superior characteristics for structural, electrical, magnetic, optical applications. Although a few binary found be suitable electrochemical energy storage application, ternary not investigated asymmetric supercapacitors (ASCs). oxides expected have increased active sites that can facilitate proton electron transfer impacting the redox reactions. Specific crystal structure associated lattice parameters as well surface morphological also influence properties. This study first time reports novel complex material, (CupMnqZnr)xFeyOz renewable pinewood (PW) derived porous carbon (POC) electrodes ASC. Both PW-POC subjected characterization used in ASC configuration with aqueous KOH electrolyte. It is anticipated Faradaic of will make it serve cathode while capacitive behavior act anode ASCs. Relatively higher specific capacitance > 200 F/g observed reference electrode fabricated Capacitance retention rate tested 10,000 cycles working whereas ASC, stability tests performed over 100 charging-discharging exhibiting relatively retention. appears promising material supercapacitor.
Language: Английский
Citations
0
Published: Jan. 1, 2023
Language: Английский
Citations
0