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Colleges and universities should fully understand the profound significance of ideological and political education, excavate the working position, innovate the working mechanism, and cultivate the firstclass talents with both virtue and ability and all-round development. With the development of social politics and economy, public emergencies occur from time to time, which often bring huge attention and radiation force. Make full use of the special situation of such incidents, and take the initiative to penetrate the ideological and political education of college students, which is not only an objective need for the prevention and control of emergencies, but also a favorable opportunity to accurately carry out the ideological and political education of college students.

In this work, carbon submicron fiber composites loaded with a cobalt-ferric alloy and cobalt-ferric binary metal compounds were prepared by electrospinning and high temperature annealing using cobalt-ferric acetone and ferric acetone as precursors and polyacrylonitrile as a carbon source. The phase transformation mechanism of the carbon submicron fiber-supported Co-Fe bimetallic compound during high temperature annealing was investigated. The electrochemical properties of the carbon submicron fiber-supported Co-Fe alloy and Co-Fe oxide self-supported electrode materials were investigated. The results show that at 138 °C, the heterogeneous submicron fibers of cobalt acetylacetonate and acetylacetone iron began to decompose and at 200 °C, CoFe2O4 was generated in the fiber. As the annealing temperature increases further, some metal compounds in the carbon fiber are reduced to CoFe2O4 alloy, and two phases of CoFe2O4 and CoFe-Fe-alloy exist in the fiber. After 200 cycles, the specific capacity of CF-P500 is 500 mAh g−1. The specific capacity of the composite carbon submicron fiber electrode material can be significantly improved by the introduction of CoFe2O4. When the binary metal oxides are used as electrode materials for lithium-ion batteries, alloy dealloying and conversion reactions can occur at the same time in the reverse process of lithium intercalation, the two reactions form a synergistic effect, and the cobalt-iron alloy in the material increases the electrical conductivity. Therefore, the carbon submicron fiber loaded with CoFe2O4/CoFe has an excellent electrochemical performance. [ABSTRACT FROM AUTHOR]

A new green system of biogenic Ni/DFNS@Pd nanoparticles for the production of 2-oxo-2-phenylethylbenzoate and cyclic carbonates by using the oxidative carboxylation of alkenes. [Display omitted] • Ni/DFNS@Pd nanoparticles created by Desulfovibrio alaskensis were remarkably active nanocatalysts. • The catalyst's properties were specified by VSM, TGA, TEM, XRD, and EDX analyses. • Ni/DFNS@Pd nanostructures were deployed to oxidation of styrenes with carbon dioxide to cyclic carbonates. In this paper, we report highly atom-selective and efficacious oxidation of styrenes with carbon dioxide to cyclic carbonates in the appearance of Ni/DFNS@Pd as a magnetic nanocatalyst (MNPs). For convenient detachment of the catalyst by an exterior magnetic domain, the dendritic fibrous nanosilica (DFNS) outer layer was covered with nickel to magnetize the DFNS. Then, the palladium nanoparticles on the outer layer of Ni/DFNS were diminished. In spite of the possibility of using these biological processes in the sustainable recapturing of vital metals (e.g. Pd), the catalytic function of biosynthesised MNPs has not yet been scrutinized. Here, instead of a chemical approach, microorganisms were utilized as catalysts for the generation of Pd nanoparticles in a biological procedure. These biogenic magnetic nanoparticles have been utilized for the first time as a reusable catalyst with an exterior magnet. The catalyst's attributes were distinguished by a variety of methods, including scanning electron microscopy (SEM), energy dispersive X-ray (EDX), thermogravimetric analysis (TGA), transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), and vibrating sample magnetometer (VSM) analyses. Biogenized Ni/DFNS@Pd was generated as a heterogeneous catalyst to compete with a homogeneous structure. This robust metal catalyst with great accessibility level and reusability was generated by anaerobic bacteria. Examining different concentrations of the catalyst showed that the selectivity and efficiency of the reaction are significantly affected by the concentration of the catalyst. Heterogeneous reaction compounds did not cause any negative effects. The products were eliminated from the catalyst without any problems and the catalyst was employed many times without a conspicuous loss in selectivity and activity. [ABSTRACT FROM AUTHOR]