Author | Ahsan, Md Ariful |
Author | He, Tianwei |
Author | Eid, Kamel |
Author | Abdullah, Aboubakr M. |
Author | Curry, Michael L. |
Author | Du, Aijun |
Author | Puente Santiago, Alain R. |
Author | Echegoyen, Luis |
Author | Noveron, Juan C. |
Available date | 2022-09-26T10:32:17Z |
Publication Date | 2021-01-20 |
Publication Name | Journal of the American Chemical Society |
Identifier | http://dx.doi.org/10.1021/jacs.0c12386 |
Citation | Ahsan, 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. |
ISSN | 00027863 |
URI | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85099620025&origin=inward |
URI | http://hdl.handle.net/10576/34501 |
Abstract | The 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. |
Language | en |
Publisher | American Chemical Society |
Subject | Low-Dimensional
|
Title | Tuning the Intermolecular Electron Transfer of Low-Dimensional and Metal-Free BCN/C60Electrocatalysts via Interfacial Defects for Efficient Hydrogen and Oxygen Electrochemistry |
Type | Article |
Pagination | 1203-1215 |
Issue Number | 2 |
Volume Number | 143 |
dc.accessType
| Abstract Only |