Enhanced hydrogen generation from biodiesel-waste glycerol using Ni/SBA-15 catalyst synthesized from boiler ash
The successful synthesis of the mesostructured SBA-15 derived from extracted boiler ash silica (BA) with distinct Ni loading (15 wt%, 20 wt%, and 25 wt%) towards H2 production from CO2 and C3H8O3 was explored. The catalysts prepared by the ultrasonic-assisted method were subjected to 8 h of GDR at 8...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Elsevier Ltd
2024
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/40007/1/Enhanced%20hydrogen%20generation%20from%20biodiesel-waste%20glycerol.pdf http://umpir.ump.edu.my/id/eprint/40007/2/Enhanced%20hydrogen%20generation%20from%20biodiesel-waste%20glycerol%20using%20Ni_SBA-15%20catalyst%20synthesized%20from%20boiler%20ash_ABS.pdf |
| Summary: | The successful synthesis of the mesostructured SBA-15 derived from extracted boiler ash silica (BA) with distinct Ni loading (15 wt%, 20 wt%, and 25 wt%) towards H2 production from CO2 and C3H8O3 was explored. The catalysts prepared by the ultrasonic-assisted method were subjected to 8 h of GDR at 800 °C. The XRD and N2 sorption revealed reduced area and crystallinity in 25 wt% Ni versus 15 wt% Ni catalyst. 20 Ni/SBA-15(BA) exhibited a larger area (234 m2/g), aperture (8.99 nm), and small NiO crystallite (18.34 nm), implying well-dispersed Ni species on SBA-15(BA) surface. 20 Ni/SBA-15(BA) displayed the highest GDR catalytic activity (57 %), credited to its accessible structure, strong Ni–O–Si bonding, and good Ni dispersion that reduced coke formation (9.8 % carbon). This discovery highlights the excellent performance of 20 wt% of Ni loaded on SBA-15 by using green silica source extracted from waste material for H2 fuel production. |
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