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Sökning: WFRF:(Hoque Md Asmaul)

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1.
  • Dürr, Robin N., et al. (författare)
  • Robust and Efficient Screen-Printed Molecular Anodes with Anchored Water Oxidation Catalysts
  • 2021
  • Ingår i: ACS Applied Energy Materials. - : American Chemical Society (ACS). - 2574-0962. ; 4:10, s. 10534-10541
  • Tidskriftsartikel (refereegranskat)abstract
    • In this work, we present the preparation and performance of screen-printed anodes for electrochemical water splitting in neutral media. With the combination of printed electrodes and molecular water oxidation catalysts, we successfully take advantage of a low-cost and up-scalable fabrication method of graphitic electrodes with the outstanding catalytic activity and stability of oligomeric ruthenium-based molecular water oxidation catalysts, offering a promising electroanode for water oxidation applications.
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2.
  • Liseev, Timofey, et al. (författare)
  • Synthetic strategies to incorporate Ru-terpyridyl water oxidation catalysts into MOFs : direct synthesis vs. post-synthetic approach
  • 2020
  • Ingår i: Dalton Transactions. - : ROYAL SOC CHEMISTRY. - 1477-9226 .- 1477-9234. ; 49:39, s. 13753-13759
  • Tidskriftsartikel (refereegranskat)abstract
    • Incorporating molecular catalysts into metal-organic frameworks (MOFs) is a promising strategy for improving their catalytic longevity and recyclability. In this article, we investigate and compare synthetic routes for the incorporation of the potent water oxidation catalyst Ru(tda)(pyCO(2)H)(2) (tda = 2,2':6',2 ''-terpyridine-6,6 ''-dicarboxylic acid, pyCO(2)H = iso-nicotinic acid) as a structural linker into a Zr-based UiO-type MOF. The task is challenging with this particular metallo-linker because of the equatorial dangling carboxylates that can potentially compete for Zr-coordination, as well as free rotation of the pyCO(2)H groups around the HO(2)Cpy center dot center dot center dot Ru center dot center dot center dot pyCO(2)H axis. As a consequence, all attempts to synthesize a MOF with the metallo-linker directly under solvothermal conditions led to amorphous materials with the Ru(tda) (pyCO(2)H)(2) linker coordinating to the Zr nodes in ill-defined ways, resulting in multiple waves in the cyclic voltammograms of the solvothermally obtained materials. On the other hand, an indirect post-synthetic approach in which the Ru(tda)(pyCO(2)H)(2) linker is introduced into a preformed edba-MOF (edba = ethyne dibenzoic acid) of UiO topology results in the formation of the desired material. Interestingly, two distinctly different morphologies of the parent edba-MOF have been discovered, and the impact that the morphological difference has on linker incorporation is investigated.
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  • Resultat 1-2 av 2

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