Publications by authors named "Rahul Ramkumar"
Laser-induced graphene (LIG) is a porous carbon nanomaterial that can be produced by irradiation of CO laser directly on the polymer substrate under ambient conditions. LIG has many merits over conventional graphene, such as simple and fast synthesis, tunable structure and composition, high surface area and porosity, excellent electrical and thermal conductivity, and good flexibility and stability. These properties make LIG a promising material for energy applications, such as supercapacitors, batteries, fuel cells, and solar cells.
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- Hydrolysis of sodium borohydride (NaBH) can effectively produce hydrogen, but it relies on an affordable catalyst; this research examines silica and phosphorylated silica as potential catalysts.
- The catalysts were created using a sol-gel method, with tetraethyl orthosilicate for silica and phosphoric acid for phosphorylation, and they were analyzed using various techniques like FT-IR and XRD.
- The phosphorylated silica (SP-PA) showed a significantly higher hydrogen production rate (762.4 mL/min/g) compared to regular silica (133 mL/min/g), indicating that the acidic properties of SP-PA enhance its catalytic performance.