|Fabrication of Nitrogen-Modified Annealed Nanodiamond with Improved Catalytic Activity|
|Y. M. Lin; D. S. Su
|Source Publication||Acs Nano
|Abstract||Annealed ultradispersed nanodiamond (ADD) with sp(2) curved concentric graphitic shells is an interesting hybrid material consisting of the remarkable surface properties of graphene-based nanomaterials and the intrinsic properties of a diamond core. In this case, based on its specific properties and surface oxygen functional groups, nitrogen modified ADD powders have been tunably synthesized via three different preparation methods in a calcination treatment process. The detailed formation and dynamic behaviors of the nitrogen species on the modified ADD during the preparation process are revealed by elemental analysis, X-ray photoelectron spectroscopy (XPS) and temperature-programmed desorption. Moreover, we study the catalytic performance on the metal free nitrogen modified ADD catalysts by means of selective oxidation of benzylic alcohols as a probe reaction. The results indicate that the modified ADD catalysts exhibit a higher catalytic activity than pristine ADD. By correlating XPS data with catalytic measurements, we conclude that the pyridinic nitrogen species plays a pivotal role in the catalytic reaction. Our work provides valuable information on the design of modified carbon materials with more excellent properties.|
|description.department||[lin, yangming] univ sci & technol china, sch chem & mat sci, hefei 230001, peoples r china. [lin, yangming
; su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [su, dangsheng] max planck gesell, fritz haber inst, dept inorgan chem, d-14195 berlin, germany.
; su, ds (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.
Oxygen Reduction Reaction
Y. M. Lin,D. S. Su. Fabrication of Nitrogen-Modified Annealed Nanodiamond with Improved Catalytic Activity[J]. Acs Nano,2014,8(8):7823-7833.
Y. M. Lin,&D. S. Su.(2014).Fabrication of Nitrogen-Modified Annealed Nanodiamond with Improved Catalytic Activity.Acs Nano,8(8),7823-7833.
Y. M. Lin,et al."Fabrication of Nitrogen-Modified Annealed Nanodiamond with Improved Catalytic Activity".Acs Nano 8.8(2014):7823-7833.
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