Antiferromagnetically coupled double perovskite as an efficient and robust catalyst for visible light driven water splitting at neutral pH
Physical Chemistry Chemical Physics, ISSN: 1463-9076, Vol: 24, Issue: 8, Page: 5083-5093
2022
- 8Citations
- 6Captures
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Article Description
Green and sustainable energy production through renewable sources is an enormously exciting field of research. Herein, we report an A-site lanthanum doped oxygen excess ruthenate (predominantly Ru5+-ions) double perovskite system, CaLaScRuO6+δ (CLSR), as an excellent photocatalyst for water splitting. The well characterized polycrystalline compound shows canted antiferromagnetic (AFM) behavior due to the existence of disordered Ru-ions at the B-site. Based on density functional theory + U (Hubbard U) calculations, we have estimated various magnetic exchange interactions and found that the ground state is antiferromagnetic in nature which is in perfect agreement with our experimental results. Detailed analysis of the electronic structure further reveals that the present system belongs to the family of charge transfer semiconductors with an energy gap of ∼0.45 eV. Finally, the material is found to proficiently work for the oxygen evolution reaction (OER) via visible-light driven water splitting at neutral pH in an ecofriendly manner.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85125212363&origin=inward; http://dx.doi.org/10.1039/d1cp04082k; http://www.ncbi.nlm.nih.gov/pubmed/35147154; https://xlink.rsc.org/?DOI=D1CP04082K; https://dx.doi.org/10.1039/d1cp04082k; https://pubs.rsc.org/en/content/articlelanding/2022/cp/d1cp04082k
Royal Society of Chemistry (RSC)
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