Excellent Diffusive Performance of Cold-Plasma-Exposed Activated Peanut Shell Carbon as an Electrode in Al-Air Batteries

Abstract

Modern energy and ecological sustainability can be accomplished, in part, by using activated bio char-based electrodes made from biomass waste in energy-producing devices like metal-air batteries and fuel cells. Herein, a simple method of combining pyrolysis graphitization with DC glow discharge plasma is used to create highly disordered carbonaceous materials incorporating surface functional groups from a readily available and inexpensive bio waste of peanut shells. The synthesized activated peanut shell carbon material displays remarkable supercapacitance performance in 2M KOH at elevated specific capacitances (537 Fg-1 at 10mVs-1) and catalytic ability for the oxygen reduction response at a half-wave peak of 0.19 V. Water contact angle and dispersion studies showed a considerable improvement in the surface's hydrophilic following plasma treatment, and Fourier transform infrared and Raman spectroscopy were also used to evaluate the surface's functional group and micro structure. In this study, a simple, affordable, and environmentally-friendly method for making activated disordered carbon is revealed. It is then investigated as a potential electrode for supercapacitor, metal air battery, and fuel cell applications.

High Porous Activated Carbon Electrode Derived from Watermelon Peel Biomass Exposed with DC Glow Discharge Plasma Applied for Super Capacitors

“…Table I lists the specific factors in plasma treatment. 9,10,14,15 Electrode preparation.-The creation of active electrodes for untreated, air plasma-treated, and oxygen plasma-treated WPAC involved blending carbon black, polyvinylidene difluoride (PVDF), and nanoparticles in an 8:1:1 mass ratio. This mixture was then mixed with 0.3 ml of N-methyl-2-pyrrolidone (NMP) to form a consistent slurry.…”