Nanostructured MnMoO4: a Bifunctional Electrocatalyst for Water Splitting and CO2 Reduction
Paper ID : 1566-ICNS
Hossein Farsi *1, Shokufeh Moghiminia2, Alireza Farrokhi-Lashidani3, Elahe Dana4, Safieh Kolangikhah5, Renan Riberio6, Juan Andres7, Zhihai Li8
1Department of Chemistry, University of Birjand, Birjand, Iran
2DNEP research Lab, University of Birjand, Birjand, IRAN
3Department of Chemistry, University of Birjand, Birjand, IRAN
4Department of chemistry, University of Birjand, Birjand, Iran
5Department of Chemistry, Unniversity of Birjand, Birjand, Iran
6Department of Chemistry, State University of Ponta Grossa, Brazil
7Catedrático Química Física, Universitat Jaume I, Castello, Spain
8Department of Chemistry, Ball State University, , Muncie, Indiana 47306, United States
Nanostructured manganese molybdate was successfully synthesized using reflux method. Its crystallinity and morphology were determined using XRD and TEM techniques. The theoretical simulation of the crystal structure using CRYSTAL17 code and Rietveld calculations reproduced the experimental XRD pattern verifying the agreement between DFT-calculations and experimental results. The calculation showed that the electronic transitions in MnMoO4 are indirect. Then with a combination of DRS and Mott-Schottky theory, the electronic band structure of prepared nano-MnMoO4 was clarified. The prepared Nano-MnMoO4 was electrochemically investigated towards water splitting and CO2 reduction. Our study showed that Mn+2 is stable during HER and CO2 reduction, and also CO2 adsorption and reduction has a poisoning effect on HER.
Nanostructured; MnMoO4; water splitting; CO2 reduction; Hydrogen evolution
Status : Abstract Accepted (Oral Presentation)