Enhancements of electric field and afterglow of non-equilibrium plasma by Pb(ZrₓTi₁₋ₓ)O₃ ferroelectric electrode

Enhancements of electric field and afterglow of non-equilibrium plasma by Pb(ZrₓTi₁₋ₓ)O₃ ferroelectric electrode

10 April 2024 | Yijie Xu, Ning Liu, Ying Lin, Xingqian Mao, Hongtao Zhong, Ziqiao Chang, Mikhail N. Shneider & Yiguang Ju
This study investigates the enhancement of electric field and afterglow in non-equilibrium plasma using a ferroelectric Pb(Zr_xTi_{1-x})O_3 (PZT) electrode. The PZT electrode, with its spontaneous electric polarization, significantly increases surface charge, electric field during breakdown, and afterglow compared to a conventional alumina barrier. Time-resolved electric field measurements show that the fast polarization of PZT enhances the electric field during breakdown in streamer discharge, doubling it compared to dielectric barrier discharge (DBD). The PZT electrode also extends the afterglow time and sustains discharge when alternating the external electric field polarity. The results demonstrate that ferroelectric barrier discharge (FBD) offers a promising technique to tune plasma properties for efficient plasma catalysis and manufacturing. Non-equilibrium low-temperature plasma, powered by renewable electricity, is a promising technology for distributed and green manufacturing, including electrified catalysis, material synthesis, fuel reforming, waste materials recycling, and pollution reduction. Non-equilibrium plasma can generate energetic electrons, ions, excited species, and surface charges to initiate and facilitate chemical reactions either in the gas phase or on gas/solid/liquid surfaces with reduced kinetic barriers and different non-equilibrium pathways at low temperatures. Furthermore, low-temperature plasma is an ideal technology to address the intermittency challenge of renewable energy produced from wind and solar by enabling fast and durable energy storage in synthesizing e-fuels such as hydrogen, ammonia, alcohol, and materials like cement and steel. Despite the advantages, low-temperature plasma manufacturing still faces challenges, including a lack of control methods for electric field and near-surface active species to tune plasma chemistry and significantly enhance reactivity near the interface between plasma and solids/liquids. Additionally, there is a need to utilize and control afterglow to reduce the quenching of transient reactive species and further enhance energy conversion efficiency. The study shows that incorporating ferroelectric materials into plasma manufacturing is promising. Ferroelectric materials with asymmetric crystal structures inherently feature spontaneous electric polarization under an external electric field in ferroelectric barrier discharge (FBD). The study demonstrates that the PZT electrode significantly enhances surface charge, electric field, and afterglow in FBD, leading to stronger streamers and reduced quenching of transient reactive species. The results highlight the potential of FBD for various applications including plasma catalysis and material synthesis.This study investigates the enhancement of electric field and afterglow in non-equilibrium plasma using a ferroelectric Pb(Zr_xTi_{1-x})O_3 (PZT) electrode. The PZT electrode, with its spontaneous electric polarization, significantly increases surface charge, electric field during breakdown, and afterglow compared to a conventional alumina barrier. Time-resolved electric field measurements show that the fast polarization of PZT enhances the electric field during breakdown in streamer discharge, doubling it compared to dielectric barrier discharge (DBD). The PZT electrode also extends the afterglow time and sustains discharge when alternating the external electric field polarity. The results demonstrate that ferroelectric barrier discharge (FBD) offers a promising technique to tune plasma properties for efficient plasma catalysis and manufacturing. Non-equilibrium low-temperature plasma, powered by renewable electricity, is a promising technology for distributed and green manufacturing, including electrified catalysis, material synthesis, fuel reforming, waste materials recycling, and pollution reduction. Non-equilibrium plasma can generate energetic electrons, ions, excited species, and surface charges to initiate and facilitate chemical reactions either in the gas phase or on gas/solid/liquid surfaces with reduced kinetic barriers and different non-equilibrium pathways at low temperatures. Furthermore, low-temperature plasma is an ideal technology to address the intermittency challenge of renewable energy produced from wind and solar by enabling fast and durable energy storage in synthesizing e-fuels such as hydrogen, ammonia, alcohol, and materials like cement and steel. Despite the advantages, low-temperature plasma manufacturing still faces challenges, including a lack of control methods for electric field and near-surface active species to tune plasma chemistry and significantly enhance reactivity near the interface between plasma and solids/liquids. Additionally, there is a need to utilize and control afterglow to reduce the quenching of transient reactive species and further enhance energy conversion efficiency. The study shows that incorporating ferroelectric materials into plasma manufacturing is promising. Ferroelectric materials with asymmetric crystal structures inherently feature spontaneous electric polarization under an external electric field in ferroelectric barrier discharge (FBD). The study demonstrates that the PZT electrode significantly enhances surface charge, electric field, and afterglow in FBD, leading to stronger streamers and reduced quenching of transient reactive species. The results highlight the potential of FBD for various applications including plasma catalysis and material synthesis.
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Understanding Enhancements of electric field and afterglow of non-equilibrium plasma by Pb(ZrxTi1%E2%88%92x)O3 ferroelectric electrode