Publications by authors named "Preetha Chandrasekharan Meenu"
Article Synopsis
- Electrochemical CO reduction can convert carbon dioxide into valuable energy sources, and two new copper-based organophosphonates have been developed to facilitate this process, focusing on turning CO into CHOH.
- The two compounds, with distinct structures, show varying selectivity for producing CHOH as the main product and CHCOOH as a secondary product, with one compound achieving better results by reducing unwanted side reactions.
- The effectiveness of these compounds as electrocatalysts is linked to their unique copper site ratios and stability of intermediates, making them potential candidates for photocatalytic applications as well.
Solution combustion-synthesized Ruddlesden-Popper oxides LaSrNi(Mn/Fe/Co)O were explored for the methanol electro-oxidation reaction. With optimal doping of Sr in the A site and Co in the B site, Ni with t configuration in LaSrNiCoO exhibited a tetragonal distortion with compression in axial bonds and elongation in equatorial bonds. This structural modification fostered an augmented overlap of orbitals with axial O 2p orbitals, leading to a heightened density of states at the Fermi level.
View Article and Find Full Text PDFMethanol oxidation reaction crucially depends on the formation of -OOH species over the catalyst's surface. Ni-based catalysts are by far the choice of materials, where the redox couple of Ni/Ni facilitates the formation of -OOH species by surface reconstructions. However, it is challenging to oxidize Ni as it generates charge-transfer orbitals near the Fermi energy level.
View Article and Find Full Text PDF