Staff View: Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles

Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles

Direct Methanol Fuel Cell (DMFC) is a powerful system for generating electrical energy for various applications. However, there are several limitations that hinder the commercialization of DMFCs, such as the expense of platinum (Pt) at market price, sluggish methanol oxidation reaction (MOR) due to...

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Main Authors:	Ramli Z.A.C., Pasupuleti J., Kamarudin S.K., Zainoodin A.M., Isahak W.N.R.W., Koh S.P., Kiong S.T.
Other Authors:	55900541000
Format:	Article
Published:	Multidisciplinary Digital Publishing Institute (MDPI) 2025
Subjects:	Anodic oxidation Bioremediation Methanol fuels Nanoclay Nanoparticles Palladium Platinum alloys Platinum compounds Pyrolysis Rate constants Anodic catalyst Carbon nanocage support Carbon nanocages Direct-methanol fuel cells Energy productions Methanol oxidation reactions Polypyrrole-carbon nanocage Pt-Ru nanoparticles ]+ catalyst Direct methanol fuel cells (DMFC)
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spelling	my.uniten.dspace-363342025-03-03T15:41:58Z Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles Ramli Z.A.C. Pasupuleti J. Kamarudin S.K. Zainoodin A.M. Isahak W.N.R.W. Koh S.P. Kiong S.T. 55900541000 11340187300 6506009910 35757181700 57208034136 22951210700 59368823600 Anodic oxidation Bioremediation Methanol fuels Nanoclay Nanoparticles Palladium Platinum alloys Platinum compounds Pyrolysis Rate constants Anodic catalyst Carbon nanocage support Carbon nanocages Direct-methanol fuel cells Energy productions Methanol oxidation reactions Polypyrrole-carbon nanocage Pt-Ru nanoparticles ]+ catalyst Direct methanol fuel cells (DMFC) Direct Methanol Fuel Cell (DMFC) is a powerful system for generating electrical energy for various applications. However, there are several limitations that hinder the commercialization of DMFCs, such as the expense of platinum (Pt) at market price, sluggish methanol oxidation reaction (MOR) due to carbon monoxide (CO) formation, and slow electrooxidation kinetics. This work introduces carbon nanocages (CNCs) that were obtained through the pyrolysis of polypyrrole (Ppy) as the carbon source. The CNCs were characterized using BET, XRD, HRTEM, TEM, SEM, and FTIR techniques. The CNCs derived from the Ppy source, pyrolyzed at 750 �C, exhibited the best morphologies with a high specific surface area of 416 m2g?1, allowing for good metal dispersion. Subsequently, PtRu catalyst was doped onto the CNC-Ppy750 support using chemical reduction and microwave-assisted methods. In electrochemical tests, the PtRu/CNC-Ppy750 electrocatalyst demonstrated improved CO tolerance and higher performance in MOR compared to PtRu-supported commercial carbon black (CB), with values of 427 mA mg?1 and 248 mA mg?1, respectively. The superior MOR performance of PtRu/CNC-Ppy750 was attributed to its high surface area of CNC support, uniform dispersion of PtRu catalyst, and small PtRu nanoparticles on the CNC. In DMFC single-cell tests, the PtRu/CNC-Ppy750 exhibited higher performance, approximately 1.7 times higher than PtRu/CB. In conclusion, the PtRu/CNC-PPy750 represents a promising electrocatalyst candidate for MOR and anodic DMFC applications. ? 2024 by the authors. Final 2025-03-03T07:41:58Z 2025-03-03T07:41:58Z 2024 Article 10.3390/polym16192684 2-s2.0-85206497174 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85206497174&doi=10.3390%2fpolym16192684&partnerID=40&md5=627f349b76e32178e57bf769bac12357 https://irepository.uniten.edu.my/handle/123456789/36334 16 19 2684 All Open Access; Gold Open Access Multidisciplinary Digital Publishing Institute (MDPI) Scopus
institution	Universiti Tenaga Nasional
building	UNITEN Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tenaga Nasional
content_source	UNITEN Institutional Repository
url_provider	http://dspace.uniten.edu.my/
topic	Anodic oxidation Bioremediation Methanol fuels Nanoclay Nanoparticles Palladium Platinum alloys Platinum compounds Pyrolysis Rate constants Anodic catalyst Carbon nanocage support Carbon nanocages Direct-methanol fuel cells Energy productions Methanol oxidation reactions Polypyrrole-carbon nanocage Pt-Ru nanoparticles ]+ catalyst Direct methanol fuel cells (DMFC)
spellingShingle	Anodic oxidation Bioremediation Methanol fuels Nanoclay Nanoparticles Palladium Platinum alloys Platinum compounds Pyrolysis Rate constants Anodic catalyst Carbon nanocage support Carbon nanocages Direct-methanol fuel cells Energy productions Methanol oxidation reactions Polypyrrole-carbon nanocage Pt-Ru nanoparticles ]+ catalyst Direct methanol fuel cells (DMFC) Ramli Z.A.C. Pasupuleti J. Kamarudin S.K. Zainoodin A.M. Isahak W.N.R.W. Koh S.P. Kiong S.T. Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
description	Direct Methanol Fuel Cell (DMFC) is a powerful system for generating electrical energy for various applications. However, there are several limitations that hinder the commercialization of DMFCs, such as the expense of platinum (Pt) at market price, sluggish methanol oxidation reaction (MOR) due to carbon monoxide (CO) formation, and slow electrooxidation kinetics. This work introduces carbon nanocages (CNCs) that were obtained through the pyrolysis of polypyrrole (Ppy) as the carbon source. The CNCs were characterized using BET, XRD, HRTEM, TEM, SEM, and FTIR techniques. The CNCs derived from the Ppy source, pyrolyzed at 750 �C, exhibited the best morphologies with a high specific surface area of 416 m2g?1, allowing for good metal dispersion. Subsequently, PtRu catalyst was doped onto the CNC-Ppy750 support using chemical reduction and microwave-assisted methods. In electrochemical tests, the PtRu/CNC-Ppy750 electrocatalyst demonstrated improved CO tolerance and higher performance in MOR compared to PtRu-supported commercial carbon black (CB), with values of 427 mA mg?1 and 248 mA mg?1, respectively. The superior MOR performance of PtRu/CNC-Ppy750 was attributed to its high surface area of CNC support, uniform dispersion of PtRu catalyst, and small PtRu nanoparticles on the CNC. In DMFC single-cell tests, the PtRu/CNC-Ppy750 exhibited higher performance, approximately 1.7 times higher than PtRu/CB. In conclusion, the PtRu/CNC-PPy750 represents a promising electrocatalyst candidate for MOR and anodic DMFC applications. ? 2024 by the authors.
author2	55900541000
author_facet	55900541000 Ramli Z.A.C. Pasupuleti J. Kamarudin S.K. Zainoodin A.M. Isahak W.N.R.W. Koh S.P. Kiong S.T.
format	Article
author	Ramli Z.A.C. Pasupuleti J. Kamarudin S.K. Zainoodin A.M. Isahak W.N.R.W. Koh S.P. Kiong S.T.
author_sort	Ramli Z.A.C.
title	Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
title_short	Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
title_full	Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
title_fullStr	Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
title_full_unstemmed	Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles
title_sort	harnessing the potential of hollow graphitic carbon nanocages for enhanced methanol oxidation using ptru nanoparticles
publisher	Multidisciplinary Digital Publishing Institute (MDPI)
publishDate	2025
_version_	1825816225423294464
score	13.244413

Harnessing the Potential of Hollow Graphitic Carbon Nanocages for Enhanced Methanol Oxidation Using PtRu Nanoparticles

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