The effect of surface modification on thermal stability of nanodiamonds
GP Bogatyreva, MA Marinich, VY Zabuga… - Journal of Superhard …, 2008 - Springer
GP Bogatyreva, MA Marinich, VY Zabuga, GG Tsapyuk, AN Panova, GA Bazalii
Journal of Superhard Materials, 2008•SpringerThe paper addresses the influence of surface modification through alteration of the
functional top surface layer on the thermal stability of nanodiamond. The modification of
nanodiamond by a high-temperature activation of its surface, which is followed by chemical
treatment, is found to reduce concentration of metal impurities and oxygen-containing
surface groups that are desorbed at temperatures below 773 K. As a consequence, the rate
of oxidation of the modified diamonds at temperatures up to 773 K is 1.7 times slower. The …
functional top surface layer on the thermal stability of nanodiamond. The modification of
nanodiamond by a high-temperature activation of its surface, which is followed by chemical
treatment, is found to reduce concentration of metal impurities and oxygen-containing
surface groups that are desorbed at temperatures below 773 K. As a consequence, the rate
of oxidation of the modified diamonds at temperatures up to 773 K is 1.7 times slower. The …
Abstract
The paper addresses the influence of surface modification through alteration of the functional top surface layer on the thermal stability of nanodiamond. The modification of nanodiamond by a high-temperature activation of its surface, which is followed by chemical treatment, is found to reduce concentration of metal impurities and oxygen-containing surface groups that are desorbed at temperatures below 773 K. As a consequence, the rate of oxidation of the modified diamonds at temperatures up to 773 K is 1.7 times slower. The oxidation onset temperature is shifted by 100 degrees.
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