Show simple item record

AuthorAhsan, Md Ariful
AuthorHe, Tianwei
AuthorEid, Kamel
AuthorAbdullah, Aboubakr M.
AuthorCurry, Michael L.
AuthorDu, Aijun
AuthorPuente Santiago, Alain R.
AuthorEchegoyen, Luis
AuthorNoveron, Juan C.
Available date2022-09-26T10:32:17Z
Publication Date2021-01-20
Publication NameJournal of the American Chemical Society
Identifierhttp://dx.doi.org/10.1021/jacs.0c12386
CitationAhsan, M. A., He, T., Eid, K., Abdullah, A. M., Curry, M. L., Du, A., ... & Noveron, J. C. (2021). Tuning the intermolecular electron transfer of low-dimensional and metal-free BCN/C60 electrocatalysts via interfacial defects for efficient hydrogen and oxygen electrochemistry. Journal of the American Chemical Society, 143(2), 1203-1215.‏
ISSN00027863
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099620025&origin=inward
URIhttp://hdl.handle.net/10576/34501
AbstractThe development of low-dimensional (LD) supramolecular materials with multifunctional electrocatalytic properties has sparked the attention of the catalysis community. Herein, we report the synthesis of a new class of 0D-2D heterostructures composed of boron carbon nitride nanosheets (BCN NSs) and fullerene molecules (C60/F) that exhibit multifunctional electrocatalytic properties for the hydrogen evolution/oxidation reactions (HER/HOR) and the oxygen evolution/reduction reactions (OER/ORR). The electrocatalytic properties were studied with varying F:BCN weight ratios to optimize the intermolecular electron transfer (ET) from the BCN NSs to the electron-accepting C60 molecules. The nanohybrid supramolecular material with 10 wt % F in BCN NSs (10% F/BCN) exhibited the largest Raman and C 1s binding energy shifts, which were associated with greater cooperativity interactions and enhanced ET processes at the F/BCN interface. This synergistic interfacial phenomenon resulted in highly active catalytic sites that markedly boosted electrocatalytic activity of the material. The 10% F/BCN showed the highest tetrafunctional catalytic performance, outperforming the OER catalytic activity of commercial RuO2 catalysts with a η10 of 390 mV and very competitive onset potential values of -0.042 and 0.92 V vs RHE for HER and ORR, respectively, and a current density value of 1.47 mA cm-2 at 0.1 V vs RHE with an ultralow ΔGH∗ value of -0.03 eV toward the HOR process. Additionally, the 10% F/BCN catalyst was also used as both cathode and anode in a water splitting device, delivering a cell potential of 1.61 V to reach a current density of 10 mA cm-2.
Languageen
PublisherAmerican Chemical Society
SubjectLow-Dimensional
TitleTuning the Intermolecular Electron Transfer of Low-Dimensional and Metal-Free BCN/C60Electrocatalysts via Interfacial Defects for Efficient Hydrogen and Oxygen Electrochemistry
TypeArticle
Pagination1203-1215
Issue Number2
Volume Number143
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record