Surface chemical modifications and surface reactivity of nanodiamonds hydrogenated by CVD plasma.

The present study focuses on the interaction of hydrogen microwave CVD plasma with nanodiamonds (NDs). Hydrogen treated NDs (H-NDs) were characterized using electron spectroscopies (XPS, AES) without air exposure. A surface temperature higher than 700 °C is needed to remove the oxygen present on raw NDs. The kinetics of oxygen removal were investigated. Moreover, UHV annealings of H-NDs after ageing in ambient air clearly underline that 75% of the oxygen is related to physisorbed species. Finally, H-NDs were efficiently grafted using photochemical reaction with alkenes and a spontaneous coupling of aryldiazonium salts. These results confirm similar electronic surface properties between bulk and nano diamond materials.

[1]  A. Krueger,et al.  The Prato reaction on nanodiamond: Surface functionalization by formation of pyrrolidine rings , 2011 .

[2]  Monya Baker,et al.  Nanotechnology imaging probes: smaller and more stable , 2010, Nature Methods.

[3]  S. Prawer,et al.  High resolution electron energy loss spectroscopy surface studies of hydrogenated detonation nano-diamond spray-deposited films , 2010 .

[4]  L. Kirste,et al.  Size-dependent reactivity of diamond nanoparticles. , 2010, ACS nano.

[5]  Y. Zhong,et al.  The chemistry of C-H bond activation on diamond. , 2010, Chemistry, an Asian journal.

[6]  P. Bergonzo,et al.  Hydrogenation of nanodiamonds using MPCVD: A new route toward organic functionalization , 2010 .

[7]  P. Bergonzo,et al.  Thermal stability and surface modifications of detonation diamond nanoparticles studied with X-ray photoelectron spectroscopy , 2010 .

[8]  Tiancheng Wang,et al.  Pulmonary toxicity and translocation of nanodiamonds in mice , 2010 .

[9]  Kuang-Kai Liu,et al.  Endocytic carboxylated nanodiamond for the labeling and tracking of cell division and differentiation in cancer and stem cells. , 2009, Biomaterials.

[10]  Si Amar Dahoumane,et al.  Protein-functionalized hairy diamond nanoparticles. , 2009, Langmuir : the ACS journal of surfaces and colloids.

[11]  K. Haenen,et al.  Surface characterisation of silicon substrates seeded with diamond nanoparticles under UHV annealing , 2008 .

[12]  K. Haenen,et al.  Diamond nanoseeding on silicon: stability under H2 MPCVD exposures and early stages of growth , 2008 .

[13]  A. Krueger.  Diamond Nanoparticles: Jewels for Chemistry and Physics , 2008 .

[14]  Huan-Cheng Chang,et al.  Mass production and dynamic imaging of fluorescent nanodiamonds. , 2008, Nature nanotechnology.

[15]  Li Lu,et al.  Biotinylated nanodiamond: simple and efficient functionalization of detonation diamond. , 2008, Langmuir : the ACS journal of surfaces and colloids.

[16]  D. Caruana,et al.  Redox properties of undoped 5 nm diamond nanoparticles. , 2008, Physical chemistry chemical physics : PCCP.

[17]  V. Dhanak,et al.  Atomic hydrogen treatment of nanodiamond powder studied with photoemission spectroscopy , 2007 .

[18]  Saber M Hussain,et al.  Are diamond nanoparticles cytotoxic? , 2007, The journal of physical chemistry. B.

[19]  Yury Gogotsi,et al.  Control of sp2/sp3 carbon ratio and surface chemistry of nanodiamond powders by selective oxidation in air. , 2006, Journal of the American Chemical Society.

[20]  D. Tromson,et al.  Sensitivity of Raman spectra excited at 325 nm to surface treatments of undoped polycrystalline diamond films , 2006 .

[21]  Hongbin Ma,et al.  Plasma treatment of diamond nanoparticles for dispersion improvement in water , 2006 .

[22]  Chia-Liang Cheng,et al.  The CH stretching features on diamonds of different origins , 2005 .

[23]  Zhenning Gu,et al.  Functionalization of Nanoscale Diamond Powder: Fluoro-, Alkyl-, Amino-, and Amino Acid-Nanodiamond Derivatives , 2004 .

[24]  A. Laikhtman,et al.  Interaction of water vapor with bare and hydrogenated diamond film surfaces , 2004 .

[25]  Riedel,et al.  Origin of surface conductivity in diamond , 2000, Physical review letters.

[26]  H. Barshilia,et al.  Concentration of atomic hydrogen in the ground state in a CH4‐H2 microwave plasma , 1996 .

[27]  Pate,et al.  Electron Emission Due to Exciton Breakup from Negative Electron Affinity Diamond. , 1995, Physical review letters.

[28]  M. Seah.  Scattering in electron spectrometers, diagnosis and avoidance. I. Concentric hemispherical analysers , 1993 .

[29]  T. DebRoy,et al.  Hydrogen assisted heat transfer during diamond growth using carbon and tantalum filaments , 1992 .

[30]  D. R. Penn,et al.  Calculations of electorn inelastic mean free paths. II. Data for 27 elements over the 50–2000 eV range , 1991 .

[31]  J. H. Scofield,et al.  Hartree-Slater subshell photoionization cross-sections at 1254 and 1487 eV , 1976 .

[32]  J. Angus,et al.  Growth of Diamond Seed Crystals by Vapor Deposition , 1968 .

[33]  P. Decarli,et al.  Formation of Diamond by Explosive Shock , 1961, Science.