DFT and Experimental Studies of Iron Oxide-based Nanocomposites for Efficient Electrocatalysis
dc.contributor.author | Ola, O | |
dc.contributor.author | Ullah, H | |
dc.contributor.author | Chen, Y | |
dc.contributor.author | Thummavichai, K | |
dc.contributor.author | Wanh, N | |
dc.contributor.author | Zhu, Y | |
dc.date.accessioned | 2021-04-08T13:00:55Z | |
dc.date.issued | 2021-04-06 | |
dc.description.abstract | The synthesis of iron oxide nanoparticles coated with graphitic carbon nitride (FeX-NC), and their improved electrochemical stability and corrosion resistance in acidic electrolyte environment are reported. Our results show that the FeX-NC nanocomposites exhibit enhanced activity and long-term stability for HER in 0.5 M H2SO4 aqueous solution, with an onset potential of 73 mV and Tafel slope of 69 mV dec-1 . Furthermore, DFT calculations are carried out to represent our experimental system. Both theory and experiment strongly correlate with each other, where gC3N4@FeO has superior performance to the pristine gC3N4. It is found that the electrocatalytic activity of gC3N4@FeO arise from the electron transfer from FeO particles to the gC3N4 which form an electrostatic interaction, leading to a decreased local work function on the surface of gC3N4. The resulting graphitic carbon nitride shells prevented the direct contact between iron oxide nanoparticles and acidic electrolyte (H2SO4), so that the improved stabilities and corrosion resistance could be achieved. This work sheds light on new efficient and durable electrocatalysts for applications in acidic environments. | en_GB |
dc.description.sponsorship | Leverhulme Trust | en_GB |
dc.identifier.citation | Published online 6 April 2021 | en_GB |
dc.identifier.doi | 10.1039/D1TC01022K | |
dc.identifier.grantnumber | ECF-2018-376 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/125310 | |
dc.language.iso | en | en_GB |
dc.publisher | Royal Society of Chemistry | en_GB |
dc.rights | © 2021. Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence: https://creativecommons.org/licenses/by/3.0/ | |
dc.title | DFT and Experimental Studies of Iron Oxide-based Nanocomposites for Efficient Electrocatalysis | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2021-04-08T13:00:55Z | |
dc.identifier.issn | 2050-7526 | |
dc.description | This is the author accepted manuscript. The final version is available on open access from the Royal Society of Chemistry via the DOI in this record | en_GB |
dc.identifier.journal | Journal of Materials Chemistry C | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | en_GB |
dcterms.dateAccepted | 2021-04-05 | |
exeter.funder | ::Engineering and Physical Sciences Research Council (EPSRC) | en_GB |
rioxxterms.version | AM | en_GB |
rioxxterms.licenseref.startdate | 2021-04-05 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2021-04-06T12:44:38Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2021-04-28T14:17:01Z | |
refterms.panel | B | en_GB |
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Except where otherwise noted, this item's licence is described as © 2021. Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence: https://creativecommons.org/licenses/by/3.0/