The Effect of Chemical Environment and Temperature on the Domain Structure of Free‐Standing BaTiO3 via In Situ STEM

Autor: Tamsin O'Reilly, Kristina M. Holsgrove, Xinqiao Zhang, John J. R. Scott, Iaro Gaponenko, Praveen Kumar, Joshua Agar, Patrycja Paruch, Miryam Arredondo

Publikováno v: Advanced Science, Vol 10, Iss 29, Pp n/a-n/a (2023)

Abstract Ferroelectrics, due to their polar nature and reversible switching, can be used to dynamically control surface chemistry for catalysis, chemical switching, and other applications such as water splitting. However, this is a complex phenomenon

Externí odkaz: https://doaj.org/article/5775e1c50b504c039e8083c6f46f486a

Insights into selective hydrogenation of levulinic acid using copper on manganese oxide octahedral molecular sieves

Autor: Nayan J. Mazumdar, Gunjan Deshmukh, Anna Rovea, Praveen Kumar, Miryam Arredondo-Arechavala, Haresh Manyar

Publikováno v: Royal Society Open Science, Vol 9, Iss 7 (2022)

Selective hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was studied using copper on manganese oxide octahedral molecular sieve (OMS-2) as catalysts. A range of copper supported on OMS-2 catalysts was prepared using the modified wet-i

Externí odkaz: https://doaj.org/article/54215e65b4864f9ba08c8df989a50f1b

Efficient solar-thermal energy conversion with surfactant-free Cu-oxide nanofluids

Autor: Hussein Sayed Moghaieb, Dilli Babu Padmanaban, Praveen Kumar, Atta Ul Haq, Chiranjeevi Maddi, Ruairi McGlynn, Miryam Arredondo, Harjit Singh, Paul Maguire, Davide Mariotti

Publikováno v: Moghaieb, H S, Padmanaban, D B, McGlynn, R, Haq, A U, Maddi, C, Maguire, P, Mariotti, D, Singh, H, Kumar, P & Arredondo, M 2023, ' Efficient solar-thermal energy conversion with surfactant-free Cu-oxide nanofluids ', Nano Energy, vol. 108, 108112 . https://doi.org/10.1016/j.nanoen.2022.108112

Data Availability: Data will be made available on request. Appendix A. Supplementary material available online at https://www.sciencedirect.com/science/article/pii/S2211285522011909?via%3Dihub#sec0065 Copyright © 2022 The Author(s). High-specificati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4793e5016120d8d9a7d314059f03925a
https://pure.qub.ac.uk/en/publications/1fefdfe9-0aa6-4ee7-87f3-58811a7ce418

Mapping grain boundary heterogeneity at the nanoscale in a positive temperature coefficient of resistivity ceramic

Autor: Kristina M. Holsgrove, Demie M. Kepaptsoglou, Alan M. Douglas, Quentin M. Ramasse, Eric Prestat, Sarah J. Haigh, Michael B. Ward, Amit Kumar, J. Marty Gregg, Miryam Arredondo

Publikováno v: APL Materials, Vol 5, Iss 6, Pp 066105-066105-10 (2017)

Despite being of wide commercial use in devices, the orders of magnitude increase in resistance that can be seen in some semiconducting BaTiO3-based ceramics, on heating through the Curie temperature (TC), is far from well understood. Current underst

Externí odkaz: https://doaj.org/article/3285cf2cc32b4c16867c7ebc986684f7

Exploring domain continuity across BaTiO3 grain boundaries: Theory meets experiment

Autor: Tamsin O'Reilly, Kristina Holsgrove, Ali Gholinia, Danielle Woodruff, Andrew Bell, John Huber, Miryam Arredondo

Publikováno v: O'Reilly, T, Holsgrove, K, Gholinia, A, Woodruff, D, Bell, A, Huber, J & Arredondo, M 2022, ' Exploring domain continuity across BaTiO3 grain boundaries: Theory meets experiment ', Acta Materialia, vol. 235, 118096 . https://doi.org/10.1016/j.actamat.2022.118096
O'Reilly, T, Holsgrove, K, Gholinia, A, Woodruff, D, Bell, A, Huber, J & Arredondo, M 2022, ' Exploring domain continuity across BaTiO3 grain boundaries: Theory meets experiment. ', Acta Materialia, vol. 235, 118096 . https://doi.org/10.1016/j.actamat.2022.118096

Polycrystalline ferroelectrics constitute the basis of many advanced technologies, including sensors and actuators. Their intricate domain patterns, and switching, drive the macroscopic electrical and mechanical properties of the material, where the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a797ccc96a11066e3fdfcd100c5706d
https://eprints.gla.ac.uk/274021/1/274021.pdf