Novel Co3O4 decorated with rGO nanocatalyst to boost microwave-assisted biodiesel production and as nano-additive to enhance the performance-emission characteristics of diesel engine

Basir Maleki, Yatish Kalanakoppal Venkatesh, Hossein Esmaeili, Masoumeh Haddadi, Ravikumar Mithun Prakash and Geetha R. Balakrishna

Energy, 2024, vol. 289, issue C

Abstract: In this study, a novel Co3O4 decorated with rGO nanocatalyst was utilized in synergy with microwave heating as a novel approach for the generation of biodiesel. In this process, 98.04 % biodiesel yield was achieved by adopting response surface methodology algorithm under MEOH/oil molar ratio of 12.75:1, Co3O4@rGO loading of 1.53 wt%, microwave time of 7.17 min, and stirring speed of 512 rpm. The catalyst can be reused for seven times with biodiesel yields beyond 85 %. Co3O4@rGO was used as a nano-additive in the diesel engine to investigate the emission and performance of biodiesel blended with diesel. The Co3O4@rGO nanoparticles were dispersed into the B20 fuel with concentrations of 50 and 100 ppm. The outcomes discovered that the brake thermal efficiency of B20Co3O4@rGO50 is 1.22 % greater than B20, and the brake specific fuel consumption is declined by 5.05 %. The emissions from the diesel engine i.e. CO (29.88 %) and UHC (16.38 %) were significantly lowered compared to B20. The emission of NOx for B20Co3O4@rGO100 is 7.4 % lower than B20 and greater than conventional petrodiesel. Owing to its remarkable stability, excellent biodiesel yield, effective utilization in diesel engine, and high catalytic activity, the Co3O4@rGO is strongly proposed for industrial biodiesel generation utilizing microwave radiation.

Keywords: Co3O4@rGO nanocatalyst; Biodiesel; Annona squamosa L. seed oil; Microwave radiation; Diesel engine characteristics; Response surface methodology (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223033388
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:289:y:2024:i:c:s0360544223033388

DOI: 10.1016/j.energy.2023.129944

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().