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For improving the corrosion resistance of the epoxy coating in 3.5%NaCl solution and extending the service life of the metal， the ZrO2-Cnf was prepared by the hybridization of nano-ZrO2 and carbon fiber (Cnf) with silane coupling agent KH560.Moreover， the ZrO2/EP coatings and ZrO2-Cnf /EP coatings were prepared by spraying method by adding 1%， 2%， 3%and 4%(atomic fraction) of ZrO2 and ZrO2-Cnf fillers into epoxy (EP) coatings， respectively.The modified fillers and modified epoxy composite coatings were characterized by scanning electron microscopy， Fourier transform infrared spectroscopy， electrochemical tests， Vickers hardness tests and friction and wear tests.Results showed that modified fillers could completely improve the corrosion resistance of epoxy resin coatings.When the content of filler was 2%， the corrosion resistance of ZrO2/EP coating and ZrO2-Cnf /EP coating was the best， and the wear loss was the smallest.When the content of the two fillers was 3%， the maximum hardness values were 32.9 HV5.0 and 46.6 HV5.0， respectively.

Career decision-making self-efficacy is a key factor influencing high school students' ability to make informed choices. It is closely associated with their professional interests, learning engagement, and academic performance. This study aims to explore the latent categories of career decision-making self-efficacy among Chinese high school students and analyze the differences in learning engagement across students with different types of career decision-making self-efficacy. A convenience sampling method was employed to recruit 510 Chinese high school students as participants. A questionnaire survey was conducted using the Career Decision-Making Self-Efficacy Scale and the Learning Engagement Scale. The validity of the questionnaire was analyzed using Amos 23.0, descriptive statistics and correlation analyses were performed with SPSS 26.0, and a latent profile model was constructed using Mplus 8.0. The results indicate that there are four latent categories of career decision-making self-efficacy among high school students. In terms of learning engagement levels, the categories are ranked from highest to lowest as follows: high career decision-making self-efficacy type, lack of external exploration type, lack of internal exploration type, and low career decision-making self-efficacy type. Students with high and low career decision-making self-efficacy demonstrated significantly higher levels of learning engagement compared to those categorized as lacking external or internal exploration. Therefore, the design of career education curricula for high school students should focus on enhancing career decision-making self-efficacy to stimulate their intrinsic motivation for learning. Differences among various student types should be acknowledged, allowing for tailored and individualized instruction. Additionally, efforts should be made to strengthen integrated career guidance that links academics, career interests, and future professions, guiding all stakeholders to shift away from entrenched practices of "exam-oriented education" and utilitarian perspectives. [ABSTRACT FROM AUTHOR]

Constructing heterojunctions is an effective strategy for improving the migration of electronic charge carriers and enhancing electronic conductivity. Herein, polyvinylpyrrolidone crosslinked with graphene oxide was used as a template to construct a FeTiO3@Fe2TiO5 endogenous heterojunction anode material (hetero-FTO) anode. The initial electrochemical capacity of the hetero-FTO anode (1207 mA h g−1 at 100 mA g−1) was approximately twice that of FTO (600 mA h g−1 at 100 mA g−1). Electrochemical kinetics and density functional theory calculations demonstrated that the built-in electric field formed at the interface of the endogenous heterojunction increased the electronic conductivity and effectively improved the conversion rate. The structural evolution of the heterojunction during cycling was tracked using in situ XPS and ex situ HRTEM and calculation of Gibbs free energies. After 100 cycles, the FeTiO3@Fe2TiO5 heterojunction structures transformed into cubic phase γ-Fe2O3; however, the capacity still increased to 865 mA h g−1. This ingenious heterogeneous-structure-design strategy and analysis of the heterogeneous structural evolution are crucial for improving the lithium-storage performance of batteries, especially those containing titanium-based conversion-type anode materials. [ABSTRACT FROM AUTHOR]