TY - JOUR
T1 - Ce-Doped TiO2 Fabricated Glassy Carbon Electrode for Efficient Hydrogen Evolution Reaction in Acidic Medium
AU - Islam, Md Nurnobi
AU - Hossain, Md Mosaraf
AU - Maktedar, Shrikant S.
AU - Rahaman, Mostafizur
AU - Rahman, Mohammad Atiqur
AU - Aldalbahi, Ali
AU - Hasnat, Mohammad A.
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2024/3/28
Y1 - 2024/3/28
N2 - The quest for sustainable and clean energy sources has intensified research on the Hydrogen Evolution Reaction (HER) in recent decades. In this study, we have presented a novel Ce-doped TiO
2 catalyst synthesized through the sol-gel method, showcasing its potential as a superior electrocatalyst for HER in an acidic medium. Comprehensive characterization through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy dispersive X-ray (EDX), and Raman spectroscopy confirms the successful formation of the catalyst. Electrocatalytic performance evaluation, including open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and Tafel analysis, demonstrates that GCE-5wt.%CeTiO
2 outperforms bare GCE, as well as Ce and TiO
2-based electrodes. Kinetic investigations reveal a Tafel slope of 105 mV dec
-1, indicating the Volmer step as the rate-determining step. The onset potential for HER at GCE-5wt.%CeTiO
2 is -0.16 V vs. RHE, close to the platinum electrode. Notably, the catalyst exhibits a low overpotential of 401 mV to achieve a current density of 10 mA cm
-2 with an impressive 95 % Faradaic efficiency. Furthermore, the catalyst demonstrates outstanding durability, maintaining a negligible increase in overpotential during a 14-hour chronoamperometry test. These results have far-reaching implications for the development of cost-effective and efficient electrocatalysts for hydrogen production.
AB - The quest for sustainable and clean energy sources has intensified research on the Hydrogen Evolution Reaction (HER) in recent decades. In this study, we have presented a novel Ce-doped TiO
2 catalyst synthesized through the sol-gel method, showcasing its potential as a superior electrocatalyst for HER in an acidic medium. Comprehensive characterization through X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Energy dispersive X-ray (EDX), and Raman spectroscopy confirms the successful formation of the catalyst. Electrocatalytic performance evaluation, including open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and Tafel analysis, demonstrates that GCE-5wt.%CeTiO
2 outperforms bare GCE, as well as Ce and TiO
2-based electrodes. Kinetic investigations reveal a Tafel slope of 105 mV dec
-1, indicating the Volmer step as the rate-determining step. The onset potential for HER at GCE-5wt.%CeTiO
2 is -0.16 V vs. RHE, close to the platinum electrode. Notably, the catalyst exhibits a low overpotential of 401 mV to achieve a current density of 10 mA cm
-2 with an impressive 95 % Faradaic efficiency. Furthermore, the catalyst demonstrates outstanding durability, maintaining a negligible increase in overpotential during a 14-hour chronoamperometry test. These results have far-reaching implications for the development of cost-effective and efficient electrocatalysts for hydrogen production.
KW - Ce-doped TiO
KW - Faradaic efficiency
KW - Hydrogen evolution reaction (HER)
KW - Overpotential
KW - Tafel slope
KW - Turnover frequency
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UR - https://www.mendeley.com/catalogue/ed195550-c60d-38e4-8633-0c0d9efaca39/
U2 - 10.1002/asia.202301143
DO - 10.1002/asia.202301143
M3 - Article
C2 - 38376002
AN - SCOPUS:85189179356
SN - 1861-4728
JO - Chemistry - An Asian Journal
JF - Chemistry - An Asian Journal
ER -