Rapidly tuning the electrocatalytic activity of perovskite oxides by plasma treatment
Literature Information
Exsolution-based nanocatalysts can effectively improve the electrochemical kinetics of the perovskite electrodes for solid oxide cells. For the conventionally gas-induced exsolution, it is generally time-consuming, with several hours or even longer needed to fabricate the nanoparticle-decorated material (NDM). For the first time, we propose to use dielectric barrier discharge (DBD) plasma to rapidly prepare exsolution-based nanocatalysts. Here, we report that, by hydrogen plasma treatment, nanocatalysts with small particle size and high particle density can be obtained in several minutes, benefitting from the significantly enhanced exsolution kinetics under the plasma bombardment. We report that as compared to that of the as-prepared and gas-treated LCTN electrodes, much better electrochemical performance is achieved by the plasma-treated LCTN electrode, deriving from the increased active sites. Our study creates an advanced technique to efficiently prepare NDMs, which can be applied in all-solid electrochemical cells or other energy generation and conversion devices.
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Journal of Materials Chemistry A

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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