Effect of physicochemical action on the aggregative properties of detonation-synthesized nanodiamonds
The results of researches of physicochemical action on aggregate properties of nanodiamond are presented.The kinetics of aggregation of nanodiamond powder was studied as a function of time,temperature,and pH of the solution.The effect of the sp2-sp3 hybridization ratio of carbon in nanodiamond powders on their aggregation was studied.It is shown that the presence of non-diamond carbon in detonation synthesis nanodiamond powders leads to the increase of the mean diameters of particles,i.e.,their agglomeration.The theoretical justification of the aggregation mechanism is proposed.It is shown that it is possible to control aggregative properties of nanodiamond powders by physicochemical influences,e.g.,gas-phase thermal treatment to reduce the size of agglomerates and to create a well-developed reconstructed surface of diamond particles with a low content of functional groups on their surface.
Z W Fan H Ilnitska V Lysakovskyi S Ivakhnenko T Kovalenko
Beijing Longshengfu International Culture Exchange Center,China,China 100078 Beijing,Fengtai Distric V.Bakul Institute for Superhard Materials National Academy of Sciences of Ukraine,Ukraine,04074,Kyiv
国际会议
三亚
英文
1-7
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）