Switching the adsorption sites of PMS on SrCoO2.52 to enhance catalytic performance

Literature Information

Publication Date 2023-11-21
DOI 10.1039/D3TA06102G
Impact Factor 12.732
Authors

Jiahong He, Qiang Xu, Bin Xiang


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Abstract

The strong adsorption of the exsolved A-site of SrCoO2.52 (SC) perovskite with peroxymonosulfate (PMS) makes the effective activation of PMS challenging. A surface reconstruction strategy has been applied to enhance direct electron transfer from the active B-site to PMS. Thus, an interface architecture of Co3O4 nanoparticles in situ growing on the SC perovskite [SrCoO3−δ@Co3O4 (SCC-2)] was developed, which exhibited enhanced catalytic activity. It was found that the surface reconstruction process not only transferred the adsorption site of PMS from the Sr to the Co site, but also enhanced the electron transfer ability of SCC-2. The formed Co–O metal–oxygen bridge facilitated the electron transfer from the bulk SrCoO3−δ to the Co sites of surface Co3O4, thus enhancing the Co2+/Co3+ redox cycle. Compared with pristine SC, the PMS activation improved by 13.1%, and ENR degradation boosted by 1.23 times for SCC-2. This study can provide guidelines to design superior catalysts by surface reconstruction.

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Source Journal

Journal of Materials Chemistry A

Journal of Materials Chemistry A
CiteScore: 19.5
Self-citation Rate: 4.7%
Articles per Year: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

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