Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation

Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation

A novel, low-cost, and environmentally friendly method of synthesising biogenic platinum nanoparticles (Pt NPs) was employed using biomass sugar cane (Saccharum officinarum L.) bagasse extract (SBE) as the reducing agent. Pt NPs derived from this biosynthesis route were thoroughly characterised by H...

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Published in:Journal of Cleaner Production
Main Author: Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
Format: Article
Language:English
Published: Elsevier Ltd 2023
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145551812&doi=10.1016%2fj.jclepro.2022.135111&partnerID=40&md5=3642626b8234e2299b74b77b78d29cd7
id 2-s2.0-85145551812
spelling 2-s2.0-85145551812
Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
2023
Journal of Cleaner Production
382

10.1016/j.jclepro.2022.135111
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145551812&doi=10.1016%2fj.jclepro.2022.135111&partnerID=40&md5=3642626b8234e2299b74b77b78d29cd7
A novel, low-cost, and environmentally friendly method of synthesising biogenic platinum nanoparticles (Pt NPs) was employed using biomass sugar cane (Saccharum officinarum L.) bagasse extract (SBE) as the reducing agent. Pt NPs derived from this biosynthesis route were thoroughly characterised by High-resolution transmission electron microscopy (HRTEM), Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) analysis. Due to the involvement of bio-reductive metabolites during biosynthesis, their metabolite profiles were identified using gas chromatography-mass spectrometry (GC-MS) and in-vitro antioxidant activities. Eleven major metabolite compounds from the SBE classified as phenol, pyrazole, furan, pyran, epoxide, long-chain fatty acid, sterol glycoside, and mixed oxygenated compounds may be responsible for the bio-reduction process. The biogenic Pt NPs endowed a high antioxidant property that can scavenge DPPH free radicals by 81.9%, with an inhibitory effect (IC50) of 37.60 μg/mL and ferric reducing antioxidant power assay (FRAP) of 57.58 μmol FeSO4/g. Furthermore, the biogenic Pt NPs deliver superior electrocatalytic activity in methanol oxidation reactions with tunable Pt ions concentration, PtCl62−, from 0.5 to 1.75 mM, with a maximum electrochemical active surface area (ECSA) of 93.41 m2 g−1 and a mass activity/specific activity of 581.50 mA mg−1/1.25 mA cm−2Pt, which is 3.67 times higher than that of commercial Pt black (158.12 mA mg−1). This study demonstrates that green chemical reduction using plant extracts is a viable method for producing biogenic Pt NPs for energy conversion and health applications, owing to its improved electrocatalytic activity and profound antioxidant properties. © 2022 Elsevier Ltd
Elsevier Ltd
9596526
English
Article
author Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
spellingShingle Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
author_facet Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
author_sort Md Ishak N.A.I.; Kamarudin S.K.; Timmiati S.N.; Mohd Sauid S.; A Karim N.; Basri S.
title Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
title_short Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
title_full Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
title_fullStr Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
title_full_unstemmed Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
title_sort Green synthesis of platinum nanoparticles as a robust electrocatalyst for methanol oxidation reaction: Metabolite profiling and antioxidant evaluation
publishDate 2023
container_title Journal of Cleaner Production
container_volume 382
container_issue
doi_str_mv 10.1016/j.jclepro.2022.135111
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145551812&doi=10.1016%2fj.jclepro.2022.135111&partnerID=40&md5=3642626b8234e2299b74b77b78d29cd7
description A novel, low-cost, and environmentally friendly method of synthesising biogenic platinum nanoparticles (Pt NPs) was employed using biomass sugar cane (Saccharum officinarum L.) bagasse extract (SBE) as the reducing agent. Pt NPs derived from this biosynthesis route were thoroughly characterised by High-resolution transmission electron microscopy (HRTEM), Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) analysis. Due to the involvement of bio-reductive metabolites during biosynthesis, their metabolite profiles were identified using gas chromatography-mass spectrometry (GC-MS) and in-vitro antioxidant activities. Eleven major metabolite compounds from the SBE classified as phenol, pyrazole, furan, pyran, epoxide, long-chain fatty acid, sterol glycoside, and mixed oxygenated compounds may be responsible for the bio-reduction process. The biogenic Pt NPs endowed a high antioxidant property that can scavenge DPPH free radicals by 81.9%, with an inhibitory effect (IC50) of 37.60 μg/mL and ferric reducing antioxidant power assay (FRAP) of 57.58 μmol FeSO4/g. Furthermore, the biogenic Pt NPs deliver superior electrocatalytic activity in methanol oxidation reactions with tunable Pt ions concentration, PtCl62−, from 0.5 to 1.75 mM, with a maximum electrochemical active surface area (ECSA) of 93.41 m2 g−1 and a mass activity/specific activity of 581.50 mA mg−1/1.25 mA cm−2Pt, which is 3.67 times higher than that of commercial Pt black (158.12 mA mg−1). This study demonstrates that green chemical reduction using plant extracts is a viable method for producing biogenic Pt NPs for energy conversion and health applications, owing to its improved electrocatalytic activity and profound antioxidant properties. © 2022 Elsevier Ltd
publisher Elsevier Ltd
issn 9596526
language English
format Article
accesstype
record_format scopus
collection Scopus
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