التفاصيل البيبلوغرافية
| العنوان: |
Dinuclear Copper Complex for High‐Rate Hydrogen Evolution Under Neutral Aqueous Conditions |
| المؤلفون: |
Younus, Hussein A., Emam, Heba, Ahmad, Nazir, Negm, Mosaad, Alomar, Muneerah, Elantabli, Fatma M., El‐Rabiei, Mohammed M., Al Hajri, Rashid, Zhang, Shiguo, Al Abri, Mohammed |
| المصدر: |
ChemElectroChem ; ISSN 2196-0216 2196-0216 |
| بيانات النشر: |
Wiley |
| سنة النشر: |
2024 |
| المجموعة: |
Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: |
The development of an efficient and stable electrocatalyst for the hydrogen evolution reaction (HER), based on earth‐abundant components, represents a crucial step toward cost‐effective and environmentally friendly hydrogen production. This study presents the utilization of a dinuclear copper catalyst, denoted as [Cu‐Gly‐SB] (Complex 1 ), for HER under both aqueous and non‐aqueous conditions. In non‐aqueous settings, the catalyst achieves excellent HER performance, requiring only a 270 mV overpotential when acetic acid is used as the proton donor. Notably, in fully aqueous conditions, complex 1 attains a remarkable current density of 18.8 mA ⋅ cm −2 at −0.7 V vs . RHE in cyclic voltammetry. The k obs value of ≈2.7×10 4 s −1 in aqueous solution at pH 7.0 further underlines the superior catalytic performance of 1 , outperforming most non‐noble‐metal molecular catalysts functioning in fully aqueous solutions. The robust stability of 1 is demonstrated through controlled potential electrolysis (CPE) over a span of 48 hours, achieving an impressive catalytic current of 11.0 mA ⋅ cm −2 at −0.39 V. Moreover, the catalytic current gradually increases with higher reduction potentials, reaching a substantial 100 mA ⋅ cm −2 at an overpotential of 590 mV during CPE >48 hours. Thorough characterizations further confirm the molecular nature of the catalyst. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.1002/celc.202300710 |
| الإتاحة: |
https://doi.org/10.1002/celc.202300710Test |
| حقوق: |
http://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: |
edsbas.C5087517 |
| قاعدة البيانات: |
BASE |
