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Article: A Scalable Laser-Assisted Method to Produce Active and Robust Graphene-Supported Nanoparticle Electrocatalysts

TitleA Scalable Laser-Assisted Method to Produce Active and Robust Graphene-Supported Nanoparticle Electrocatalysts
Authors
KeywordsElectrocatalysts
Electrolysis
Nanoparticles
Few-layer graphene
Flexible polyimide
Issue Date2019
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm
Citation
Chemistry of Materials, 2019, v. 31 n. 19, p. 8230-8238 How to Cite?
AbstractThe development of renewable energy schemes requires the scalable production of highly robust electrocatalysts using a sustainable synthesis process that does not generate toxic liquid wastes. Here, an industrial laser system is utilized to prepare electrocatalysts in a continuous fashion using a laser-induced-forward-transfer-assisted nanomaterial preparation (LANP) method without generating liquid wastes. This dry processing method at room temperature and under ambient pressure enables the production of well-dispersed Pt, Ru, and Ni nanoparticles (NPs) supported on a few-layer graphene carbon framework. This versatile LANP procedure allows for the efficient deposition of binder-free Pt, Ru, and Ni NPs onto flexible polyimide films and glass surfaces at a rate of 400 mm/s. The size and quantity of the spherical NPs present on the conductive carbon surface can be tuned by adjusting the LANP parameters such as the laser power, the scribing speed, and the source thickness. Upon increasing the laser power, the size of Pt NPs decreases and the amount of Pt in the laser-derived materials increases. A second laser treatment can further modulate the hydrophilicity and solvent accessibility of graphene-supported Pt NPs. Our results demonstrate that the binder-free Pt, Ru, and Ni NPs supported on a few-layer graphene generated using the LANP strategy can serve as practical, active, and robust electrocatalysts for water-splitting reactions in advanced electrolyzer technology.
Persistent Identifierhttp://hdl.handle.net/10722/278119
ISSN
2019 Impact Factor: 9.567
2015 SCImago Journal Rankings: 4.232
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMO, X-
dc.contributor.authorChan, KC-
dc.contributor.authorTse, ECM-
dc.date.accessioned2019-10-04T08:07:51Z-
dc.date.available2019-10-04T08:07:51Z-
dc.date.issued2019-
dc.identifier.citationChemistry of Materials, 2019, v. 31 n. 19, p. 8230-8238-
dc.identifier.issn0897-4756-
dc.identifier.urihttp://hdl.handle.net/10722/278119-
dc.description.abstractThe development of renewable energy schemes requires the scalable production of highly robust electrocatalysts using a sustainable synthesis process that does not generate toxic liquid wastes. Here, an industrial laser system is utilized to prepare electrocatalysts in a continuous fashion using a laser-induced-forward-transfer-assisted nanomaterial preparation (LANP) method without generating liquid wastes. This dry processing method at room temperature and under ambient pressure enables the production of well-dispersed Pt, Ru, and Ni nanoparticles (NPs) supported on a few-layer graphene carbon framework. This versatile LANP procedure allows for the efficient deposition of binder-free Pt, Ru, and Ni NPs onto flexible polyimide films and glass surfaces at a rate of 400 mm/s. The size and quantity of the spherical NPs present on the conductive carbon surface can be tuned by adjusting the LANP parameters such as the laser power, the scribing speed, and the source thickness. Upon increasing the laser power, the size of Pt NPs decreases and the amount of Pt in the laser-derived materials increases. A second laser treatment can further modulate the hydrophilicity and solvent accessibility of graphene-supported Pt NPs. Our results demonstrate that the binder-free Pt, Ru, and Ni NPs supported on a few-layer graphene generated using the LANP strategy can serve as practical, active, and robust electrocatalysts for water-splitting reactions in advanced electrolyzer technology.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm-
dc.relation.ispartofChemistry of Materials-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectElectrocatalysts-
dc.subjectElectrolysis-
dc.subjectNanoparticles-
dc.subjectFew-layer graphene-
dc.subjectFlexible polyimide-
dc.titleA Scalable Laser-Assisted Method to Produce Active and Robust Graphene-Supported Nanoparticle Electrocatalysts-
dc.typeArticle-
dc.identifier.emailTse, ECM: ecmtse@hku.hk-
dc.identifier.authorityTse, ECM=rp02452-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.chemmater.9b03669-
dc.identifier.scopuseid_2-s2.0-85072911348-
dc.identifier.hkuros306365-
dc.identifier.volume31-
dc.identifier.issue19-
dc.identifier.spage8230-
dc.identifier.epage8238-
dc.identifier.isiWOS:000489678800046-
dc.publisher.placeUnited States-
dc.identifier.issnl0897-4756-

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