| Autor: |
Shaista Ibrahim, Muhammad Mohsin Saleem, Muhammad Imran, Waqas Ali Shah, David.B. Cordes, Alexandra M.Z. Slawin, Muhammad Arif Nadeem |
| Přispěvatelé: |
University of St Andrews. School of Chemistry, University of St Andrews. EaSTCHEM |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
SSRN Electronic Journal. |
| ISSN: |
1556-5068 |
| DOI: |
10.2139/ssrn.4084592 |
| Popis: |
Funding: The work was financially supported by the Higher Education Commission (HEC) of Pakistan (No. 8400/Federal/NRPU/R&D/HEC/2017). This work was also supported by Alexander von Humboldt (AvH) Foundation, Germany, for return fellowship (Ref 3.5 - 1161601 - PAK GFHERMES-P) awarded to M.A. Nadeem. The structural stability of coordination polymers is very important to act as efficient catalysts. A novel two dimensional manganese based coordination polymer [Mn2(ox)(sqr)(dmso)2]n (Mn-CP) {ox = oxalate, sqr = squarate, dmso = dimethylsulfoxide} has been fabricated, keeping in consideration that the extensive delocalization of π-electron densities of both non-innocent redox active ligands will make a manganese an efficient oxygen-evolving centre by improving its poor intrinsic conductive nature. Mn-CP has displayed excellent OER performance at neutral pH, exhibiting a current density (J) of 10 mA/cm2 at an overpotential (η) of 300 mV (vs. RHE), with a Tafel slope (TS) of 82.4 mV/dec in PBS (pH = 7.4). The enhanced water oxidizing ability can be credited to the unique two-dimensional planer-conducting layers of oxalates and squarates with Mn2+ ions. FT-IR, PXRD and controlled potential electrolysis (CPE) investigate that Mn-CP stays functional and structurally intact for a period of 10 hours. Postprint |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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