{'fraction_non_alphanumeric': 0.024879614767255216, 'fraction_numerical': 0.015248796147672551, 'mean_word_length': 5.966480446927374, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Intercalation: Constructing Nanolaminated Reduced Graphene Oxide/Silica Ceramics for Lightweight and Mechanically Reliable Electromagnetic Interference Shielding Applications.

There is a critical need to develop lightweight and mechanically reliable materials for electromagnetic interference (EMI) shielding applications in the harsh environment. In this study, we propose a low-density (∼2.2 g/cm3) reduced graphene oxide (rGO)/silica ceramic with multilayer rGO sheets parallelly aligned inside the silica matrix through a new intercalation strategy. The parallel rGO sheets lead to outstanding EMI shielding effectiveness values of 29-33 dB in the X-band, owing to the interlayer multiple reflections of the electromagnetic wave. Meanwhile, the parallel rGO sheets elevate the flexural strength by 110-130% and improve the fracture toughness by 100-130% compared with the monolithic silica by capturing and deflecting the propagating cracks. The nanolaminated structure constructed by the intercalation approach can effectively break the trade-off between mechanical properties and EMI shielding performances in the graphene/ceramic composites, thus opening up new opportunities in the lightweight and mechanically reliable EMI applications.