Surface Structure of Aerobically Oxidized Diamond Nanocrystals

Wolcott, Abraham; Schiros, Theanne; Trusheim, Matthew E.; Chen, Edward H.; Nordlund, Dennis; Diaz, Rosa E.; Gaaton, Ophir; Englund, Dirk; Owen, Jonathan S.

doi:10.1021/jp506992c

Title: Surface Structure of Aerobically Oxidized Diamond Nanocrystals

Journal Article · Mon Oct 27 00:00:00 EDT 2014 · Journal of Physical Chemistry. C

DOI:https://doi.org/10.1021/jp506992c· OSTI ID:1229426

Wolcott, Abraham ^[1]; Schiros, Theanne ^[2]; Trusheim, Matthew E. ^[3]; Chen, Edward H. ^[3]; Nordlund, Dennis ^[4]; Diaz, Rosa E. ^[5]; Gaaton, Ophir ^[6]; Englund, Dirk ^[3]; Owen, Jonathan S. ^[7]

Columbia Univ., New York, NY (United States). Dept. of Chemistry; Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering; Columbia Univ., New York, NY (United States). Dept. of Applied Mathematics and Applied Physics; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science; Diamond Nanotechnologies Inc., Boston, MA (United States)
Columbia Univ., New York, NY (United States). Energy Frontier Research Center
Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering; Columbia Univ., New York, NY (United States). Dept. of Applied Mathematics and Applied Physics; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science
SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)
Columbia Univ., New York, NY (United States). Dept. of Electrical Engineering; Columbia Univ., New York, NY (United States). Dept. of Applied Mathematics and Applied Physics; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Electrical Engineering and Computer Science; Diamond Nanotechnologies Inc., Boston, MA (United States)
Columbia Univ., New York, NY (United States). Dept. of Chemistry

Here we investigate the aerobic oxidation of high-pressure, high-temperature nanodiamonds (5–50 nm dimensions) using a combination of carbon and oxygen K-edge X-ray absorption, wavelength-dependent X-ray photoelectron, and vibrational spectroscopies. Oxidation at 575 °C for 2 h eliminates graphitic carbon contamination (>98%) and produces nanocrystals with hydroxyl functionalized surfaces as well as a minor component (<5%) of carboxylic anhydrides. The low graphitic carbon content and the high crystallinity of HPHT are evident from Raman spectra acquired using visible wavelength excitation (λ_excit = 633 nm) as well as carbon K-edge X-ray absorption spectra where the signature of a core–hole exciton is observed. Both spectroscopic features are similar to those of chemical vapor deposited (CVD) diamond but differ significantly from the spectra of detonation nanodiamond. Lastly, we discuss the importance of these findings to the functionalization of nanodiamond surfaces for biological labeling applications.

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Research Organization:: Energy Frontier Research Centers (EFRC) (United States). Re-Defining Photovoltaic Efficiency Through Molecule Scale Control (RPEMSC); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC00112704; W911NF-12-1-0594; SC0001085; AC02-98CH10886; HDTRA1-11-1-0022; HR0011-14-C-0018; D14PC00121; 1R43MH102942-01

OSTI ID:: 1229426

Report Number(s):: BNL-111502-2015-JA

Journal Information:: Journal of Physical Chemistry. C, Vol. 118, Issue 46; ISSN 1932-7447

Publisher:: American Chemical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 50 works

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