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Triboelectric tactile sensing technique is increasingly coming into people’s lives to bring convenience, so that there is an urgent necessity for this technique to be applied to smart mobility to increase safety and enhance the mobility experience. Herein, a single-electrode mode multilayer triboelectric sensor (MTS) motivated by artificial intelligence (AI) is proposed, which consists of styrene-butadiene-styrene (SBS)/ poly (vinylida-ene fluoride-trifluoroethylene) (PVDF-TrFE) nanofibers (NFs) film as the friction layer and substrate, laser-induced graphene (LIG)/molybdenum disulfide (MoS2) as the charge trapping layer, and Ag as the electrode. The MTS exhibits remarkable sensing performance, such as a wide response range of 5-100N, 0.4-2Hz multi-frequency response capability, and non-contact sensing, as well as distinguished self-powered performance. To demonstrate the practical significance of the proposed MTS, two applications are explored specifically after equipping with AI, including: (i) a smart in-vehicle system is constructed, which consists of unlocking section and multifunctional control with early warning section. (ii) a smart car control system is implemented, which can carry out special tasks instead of humans. These applications provide reliable ways to promote the development of human-machine interaction and smart mobility, as well as help to make lifestyles and mobility smarter, safer and more convenient.

Solid oxide electrolysis cells (SOECs) could convert CO2greenhouse gas into valuable fuels and chemicals with high energy efficiency. Unfortunately, the lack of efficient cathode materials obstructs their practical applications. Herein, a promising cathode material with high activity and stability is developed, with the partial replacement of the transition metal Mo by the alkaline-earth metal Mg in the double perovskite structure of Sr2FeMoO6-σ. The replacement of Mo by Mg could not only improve its redox stability, but also enhance the CO2electrolysis performance. In the same test environment, the electrolytic current of the LSGM electrolyte-supported single cell with Sr2FeMo2/3Mg1/3O6−δas the cathode is almost two times higher than that of the Sr2FeMoO6-σcathode. Density functional theory with Hubbard correlation reveals that the improved electrocatalytic performance results from the reduced d-pband coupling introduced by the dopant of Mg, which is short of delectrons, favoring the formation of oxygen vacancies for the MgB-VO-FeB′and FeB-VO-FeB′bonds. These newly formed oxygen vacancies have highly catalytic activity toward CO2activation and the subsequent dissociation process. Our strategy demonstrates a general method for the development of promising new catalysts for efficient CO2reutilization by modulating the electronic structures using d-electron-free elements.