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Activated carbon has a huge demand for its broad applications in batteries, supercapacitors, wastewater treatment, etc. Activated carbon possesses a porous morphology, which facilitates its enhanced thermal stability, and surface area. Researchers employing agro-waste have focused on meeting the high demand of low-cost activated carbon production. This paper reports coconut-shell-derived activated carbon prepared by the thermal and chemical activation processes. The prepared samples are investigated for their structural, morphological, elemental composition, electrochemical properties, and functional groups. The prepared samples evidenced the amorphous nature, and some graphitic disordered, as confirmed by the x-ray diffraction (XRD) and Raman investigations. The morphological analysis demonstrated the formation of a nanoflakes-like structure; however, another sample prepared with chemical activation endorsed the porous carbon nanostructures. Furthermore, we have examined electrochemical properties and explored. [ABSTRACT FROM AUTHOR]

Bulk metallic glass (BMG) samples are amalgamated by high-energy ball milling using the general formula (Ni75Cr15Si10)100−xTix (labelled as NCSTx, where x = 0,4, 8 and 12 at.%). The crystallinity and phase attribution properties of nickel (Ni), chromium (Cr), silicon (Si) and titanium (Ti) are scrutinized using the XRD analysis. The trend related to glass-forming ability (ΔT) and the GFA parameter (γ) is NCST8 > NCST12 > NCST4 > NCST0, which confirms that NCST8 sample shows superior glass-forming ability. The reduced glass transition temperature (Trg) for all the present BMG systems is greater than 0.5, which offers its good thermal stability and glass-forming ability (GFA). Corrosion studies suggested that a sample, having dynamic nature towards corrosion resistance and potential (Ec) (NCST8, (Ni75Cr15Si10)92Ti8), exhibits relatively lower values of both ic (4.7 × 10−4 A/cm2) and ip (0.0079 A/cm2), as recommended in potentio-dynamic findings. [ABSTRACT FROM AUTHOR]