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dc.contributor.authorSuryanto, Bryan Harry Rahmat
dc.contributor.authorKang, Colin Suk Mo
dc.contributor.authorWang, Dabin
dc.contributor.authorXiao, Changlong
dc.contributor.authorZhou, Fengling
dc.contributor.authorAzofra Mesa, Luis
dc.contributor.authorCavallo, Luigi
dc.contributor.authorZhang, Xinyi
dc.contributor.authorMacfarlane, Douglas R.
dc.date.accessioned2018-05-07T07:36:24Z
dc.date.available2018-05-07T07:36:24Z
dc.date.issued2018-04-25
dc.identifier.citationSuryanto BHR, Kang CSM, Wang D, Xiao C, Zhou F, et al. (2018) A Rational Electrode-Electrolyte Design for Efficient Ammonia Electrosynthesis under Ambient Conditions. ACS Energy Letters. Available: http://dx.doi.org/10.1021/acsenergylett.8b00487.
dc.identifier.issn2380-8195
dc.identifier.issn2380-8195
dc.identifier.doi10.1021/acsenergylett.8b00487
dc.identifier.urihttp://hdl.handle.net/10754/627757
dc.description.abstractRenewable energy driven ammonia electrosynthesis by N2 reduction reaction (NRR) at ambient conditions is vital for the sustainability of the global population and energy demand. However, NRR under ambient conditions to date has been plagued with low yield rate and selectivity (<10%) due to the more favourable hydrogen evolution reaction (HER) in aqueous media. Herein, surface area enhanced α-Fe nanorods grown on carbon fibre paper was used as a NRR cathode in an aprotic fluorinated solvent – ionic liquid mixture. Through this design, a significantly enhanced NRR activity with NH3 yield rate of ~2.35 × 10-11 mol s-1 cmGSA-2, (3.71 × 10-13 mol s-1 cmECSA-2) and selectivity of ~32% has been achieved under ambient conditions. This study reveals that the use of hydrophobic fluorinated aprotic electrolyte effectively limits the availability of protons and thus suppresses the competing HER. Therefore, electrode-electrolyte engineering is essential in advancing the NH3 electrosynthesis technology.
dc.description.sponsorshipThe authors thank Monash Centre for Electron Microscopy (MCEM) for the provision of access to their instruments. L.M.A. and L.C. acknowledge King Abdullah University of Science and Technology (KAUST) for support. Gratitude is also due to the KAUST Supercomputing Laboratory using the supercomputer Shaheen II for providing the computational resources. This study was supported by an Australian Research Council (ARC) Discovery Grant (DP170102267). DRM is grateful to the ARC for his Australian Laureate Fellowship.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsenergylett.8b00487
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsenergylett.8b00487.
dc.titleA Rational Electrode-Electrolyte Design for Efficient Ammonia Electrosynthesis under Ambient Conditions
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Energy Letters
dc.eprint.versionPost-print
dc.contributor.institutionSchool of Chemistry, Monash University, Clayton, VIC 3800, Australia
kaust.personAzofra Mesa, Luis
kaust.personCavallo, Luigi
refterms.dateFOA2019-04-25T00:00:00Z
dc.date.published-online2018-04-25
dc.date.published-print2018-06-08


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