13 research outputs found

    Phase diagrams of the terminating oxygen layer on MXenes M2CO sheets (M = Ti, V, Nb)

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    In this work we have studied the behavior of oxygen adsorbed on the MXenes M2CO (M=Ti, V, Nb) surface by the density functional theory and Monte Carlo methods. An approximation for the lateral interactions potential has been constructed that has the form of a pair potential. We have carried out the quantitative assessment of the errors of the pair potential. Using SuSMoST program we have constructed isotherms of adsorption. The results showed a non-trivial phase behavior of the adlayer: we observed three phases characterized by the 1/3, 1/2 and 2/3 coverage. It has been predicted that complete oxygen removal from the MXenes surface is possible at temperatures above 500 K

    Exploring the attitudes of students undertaking sports degrees towards online international learning

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    Abstract Aims: There is an increased focus on the internationalisation of the learning experiences of university students1. One way this can be achieved is through ‘virtual internationalisation’2, which can be promoted through the use of Online International Learning (OIL) programmes. This article on sport pedagogy investigates the attitudes of sport students to such a programme. Methods: This article uses quantitative and qualitative methods. 63 students completed a survey and wrote reflective reports. Data was collected from a survey of 16 targeted questions addressing the attitudes of students towards the programme. Students also wrote reflective reports on their experiences, allowing for qualitative responses to be analysed. Results: 62% of students surveyed found the internationalised module to have been a worthwhile experience in terms of learning new skills and working with a partner from an institution based in another continent. 65% suggested that they learned skills on the internationalised module they would use again in education and in future employment. Students from European Union countries gave high rates of positive feedback. 100% reported that the module was a worthwhile experience, compared to 60% of UK students and 38% of international students from outside the European Union. Conclusion: 62% of students surveyed stated that they learned new skills, and there was a perceived value to the programme in terms of enhancing employment prospects. Virtual mobilities projects offer a possible method for tutors to give students international experiences, which is important as sport is now a globalised industry

    Investigate of lateral interactions between ammonia molecules adsorbed on a V3C2 MXenes sheet of DFT study and statistical physics

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    In this paper, we investigated the lateral interactions of ammonia molecules on the V3C2 surface using the methods of the density functional theory. The calculations were carried out using non-local functionals. We investigated the properties of the adsorption layer MXenes V3C2 methods of statistical physics. The adsorption isotherms were constructed using the SuSMoST program code. They made recalculation of adsorption isotherms from chemical potential to pressure
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