Improving reinforcement properties of CNTs in aluminium matrix composites: a case of surface modification through AlN nano-particle grafting

Sahoo, Barada Prasanna; Das, Diptikanta; Rath, Prasenjit; Chakrabarty, Shanta; Roy, Soma; Mohanta, Kalyani

doi:10.1016/j.surfin.2022.102571

Cited by 7 publications

(3 citation statements)

References 58 publications

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“…Increase intensities are also found for cellulose-and lignin-related bands, including 897 cm -1 (C-H rocking vibration), 1,503 cm -1 (C=C stretching of lignin), and 1,592 cm -1 (C=O stretching of lignin), and 2,890 cm -1 (C-H stretching) [28,29] . The C-H/C-O vibrations of cellulose-and syringyl lignin-related bands increase and shift from 1,326 cm -1 in NW to 1,315 cm -1 in TrW [27,30] . New bands (1,743 and 1,625 cm -1 ) observed for CNTs@TrW are attributed to C=C stretching from functionalized CNTs [31] .…”

Section: Wood Modification and Characterizationmentioning

confidence: 99%

Layer-by-layer assembling redox wood electrodes for efficient energy storage

Farid,

Wang,

Razaq

et al. 2024

Energy Mater

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The exploration of redox-active organic materials and low tortuous thick-electrodes is attractive for energy storage. The in-situ valorized lignin on raw wood surface accompanied by layer-by-layer deposition of electro-active materials endow such spatially distributed wood electrodes with high specific capacitance. Here, we report a layer-by-layer assembled ca.1.5 mm-thick redox wood hybrid electrode with 20 mg cm-2 electro-active mass loading for efficient energy storage. The in-situ modified surface lignin in treated wood (TrW) holds promise as redox-active material with enriched nanoporosity, carbonyl functionalities, and multi-phase ionic transport structure. The carbon nanotubes (CNTs) networking with in-situ polymerized polypyrrole (PPy) nanorods three-dimensionally in the lumen of TrW afford a wool-like, highly porous nanostructure. Such a hierarchical structured PPy@CNTs@TrW electrode offers a high areal capacitance of 1.46 F cm-2 with an extraordinary energy density of 0.983 mWh cm-3 (3.68 Wh kg-1) and power density of 5.4 mW cm-3 (20.25 W kg-1). Here, the valorized surface lignin contributes contributes to electrochemical energy storage accompanied by spatially distributed PPy@CNTs in low tortuous electrodes. The electrode offers extremely low electrochemical impedance of 0.61 Ω electrode resistance and 1.57 Ω electrolyte resistance. The hybrid wood electrode showcases even higher conductivity and energy/power density than thin carbonized wood and other state-of-the-art thin electrodes made of highly conductive three-dimensional networks. This work highlights the potential of in-situ valorized lignin in developing high-performance eco-friendly thick-electrodes for electrochemical energy storage applications.

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Section: Wood Modification and Characterizationmentioning

confidence: 99%

Layer-by-layer assembling redox wood electrodes for efficient energy storage

Farid,

Wang,

Razaq

et al. 2024

Energy Mater

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“…Nitrogen co-doped with transition metals (Fe, Co, Mn, Ni) and their alloys have also shown promising results in terms of high current density, electron transfer number, and low activation energy. Furthermore, transition metals have been used in conjunction with Carbon [16,[33][34][35][36]. The carbon is heated in an inert environment to increase its surface area, and the transition metals or alloys are then evenly spread on the surface of activated carbon to provide ample space for active sites and enhance catalytic activity [18,[37][38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

Exploring the Potential of α-MnO<sub>2</sub>/ Carbon Nanotubes for Improved Oxygen Reduction Reaction Performance at the Cathode of Alkaline Fuel Cells

Ullah,

Hussain,

Khan

et al. 2024

AMR

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In the field of fuel cell technology, the development of cost-effective catalysts is crucial for the commercialization of Alkaline Membrane Fuel Cells (AMFCs). Platinum (Pt) has traditionally been employed as the catalyst in AMFCs, but its high cost poses a major barrier to widespread adoption. In this study, a new catalyst material was developed by incorporating Manganese Dioxide (α-MnO2) into Carbon Nanotubes (CNTs) using hydrothermal synthesis techniques. The synthesized catalyst was characterized using Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD), and its electrocatalytic activity was evaluated through Linear Sweep Voltammetry (LSV) and CV through Rotating Disc Electrode (RDE) experiments. The results showed that the α-MnO2-CNT composite displayed strong durability in the alkaline environment and high electrocatalytic activity for oxygen reduction reaction (ORR). The LSV measurements revealed a current density of -4.1 mA/cm2 and an overpotential of -0.3V relative to Standard Calomel Electrode (SCE) in a 0.1M KOH electrolyte. Additionally, the α-MnO2-CNT composite displayed high methanol tolerance and long-term stability compared to commercial Pt/C catalysts. This study demonstrates that the use of α-MnO2-CNT as a cost-effective alternative to Pt has the potential to facilitate the commercialization of AMFC technology.

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“…; nitrides, such as Si 3 N 4 [16], AlN, etc. ; and other types of reinforcement, such as carbon nanotubes [17], TiB 2 [18], ZrB 2 [19], etc. Nevertheless, SiC particle-reinforced aluminum matrix composites are widely recognized as one of the most competitive types of particlereinforced aluminum matrix composites [20].…”

Section: Introductionmentioning

confidence: 99%

A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

Wang

Zhang

2023

Lubricants

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Aluminum matrix composites are key materials used in the preparation of lightweight structural parts. It has the advantages of low density, high specific strength, and high specific stiffness. Additionally, its friction and wear properties are important factors that determine the material’s suitability for use in a batch. Therefore, this paper systematically analyzes the current research on the friction and wear behavior of particle-reinforced aluminum matrix composites. It also discusses the effects of various internal factors, such as the microstructure characteristics of the matrix materials and the state of the reinforced particles, as well as external factors like wear pattern, applied load, sliding speed, thermal treatment, and temperature on the friction and wear properties of these composites. The applications of particle-reinforced aluminum matrix composites in the fields of transportation, aerospace, and electronics are summarized. In addition, this paper discusses the current research status and future development trends regarding the wear behavior of particle-reinforced aluminum matrix composites. Finally, this study aims to provide technical references for researching the friction and wear properties of particle-reinforced aluminum matrix composites. It is intended to benefit scientific researchers and engineering technicians and provide insights for the development of new composite materials in the future.

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Improving reinforcement properties of CNTs in aluminium matrix composites: a case of surface modification through AlN nano-particle grafting

Cited by 7 publications

References 58 publications

Layer-by-layer assembling redox wood electrodes for efficient energy storage

Layer-by-layer assembling redox wood electrodes for efficient energy storage

Exploring the Potential of α-MnO<sub>2</sub>/ Carbon Nanotubes for Improved Oxygen Reduction Reaction Performance at the Cathode of Alkaline Fuel Cells

A Review of the Friction and Wear Behavior of Particle-Reinforced Aluminum Matrix Composites

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