石墨炔空心花球的制备及高选择性电催化氧还原过氧化氢

Preparation ofgraphdiyne hollow flower nanospheres andthe performance of electrocatalytic oxygen reduction tohydrogen peroxide with high selectivity

石墨炔是一种能够在低温常压下合成的二维全碳材料,以其室温制备及性能为主线,利用铜纳米颗粒为生长基底及催化剂制备了石墨炔纳米花球,去除铜颗粒后得到石墨炔空心花球,对材料进行Raman, XRD,XPS,SEM,TEM等结构与形貌表征,证明了其成功制备。在不添加任何导电材料的情况下将石墨炔空心花球作为电催化剂,经测试得到其催化氧还原制备过氧化氢选择性达76%,验证了石墨炔空心花球高效电催化氧还原制备过氧化氢方面的优势。实验综合性较强,可作为研究前沿及课程思政元素引入至专业课程教学及创新实验。

Graphdiyne is a two-dimensional all carbon material that can be synthesized at the condition of low temperature and normal pressure.In this experiment,copper nanoparticles were used as the substrate and catalyst to prepare graphdiyne nanospheres.After removing copper nanoparticles,graphdiyne hollow flower nanospheres were obtained.Through the characterization of the composition and morphology by Raman,XRD,XPS,SEM and TEM,it demonstrated the successful preparation of graphdiyne.Without any conductive materials,the graphdiyne nanospheres can be directly used as a catalyst for electrocatalytic oxygen reduction to hydrogen peroxide with a selectivity of 76%,verifying the advantage of graphdiyne in the process of oxygen reduction to hydrogen peroxide.The experiment is comprehensive and can be introduced into professional course teaching and innovative experiments as a research frontier and an ideological and political education element.