Browsing by Title

X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates

Ritchie, Andrew D.; MacDonald, Mark A.; Zhang, Peng; White, Mary Anne; Beekman, Matt; Gryko, Jan; Nolas, George S. (2010-10)

We have probed both the local structure and the electronic properties of Na-containing type II Si clathrates by x-ray absorption spectroscopy. The near-edge region of the spectrum is particularly sensitive to the local ...

X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 (0 < x < 24) clathrates.

Ritchie, Andrew D.; MacDonald, Mark A.; Zhang, Peng; White, Mary Anne; Beekman, Matt; Gryko, Jan; Nolas, George S. (2010)

The local structure and electronic properties were probed of Na-contg. type II Si clathrates by x-ray absorption spectroscopy. The near-edge region of the spectrum is particularly sensitive to the local structure surrounding ...

X-ray Absorption Spectroscopy Studies of Metal and Metal-Oxide Nanocatalysts

Do, David (2020-11-18)

Nanoparticles have received much attention due to their unique structure and physical and chemical properties compared to their bulk material counterparts, which allow them to be used in a variety of applications, such as ...

X-ray Absorption Spectroscopy Studies of Thiolate-protected Gold Nanoclusters with FCC-, HCP- and BCC-like Core Geometry

Yang, Rui (2019-01-15)

Research on thiolate-protected gold nanoclusters (AuSR NCs) has recently attracted a great deal of interests due to their intriguing atomic structure and promising applications in catalysis, nanoelectronics, bio-detection, ...

X-Ray of the Female Pelvis as an Aid in Obstetrics

MacIntosh, David L. (Dalhousie Medical Society, 1939-04)

The X-ray Spectral Properties of SCUBA Galaxies

Alexander, D. M.; Bauer, F. E.; Chapman, S. C.; Smail, I.; Blain, A. W.; Brandt, W. N.; Ivison, R. J. (2005-10-20)

Deep SCUBA surveys have uncovered a large population of massive submm galaxies (SMGs) at z>~1. Although it is generally believed that these galaxies host intense star-formation activity, there is growing evidence that a ...

X-ray Spectroscopic Studies of Gold-thiolate Nanoclusters

MacDonald, Mark (2011-08-03)

Structural characterization of nanomaterials represents one of the largest challenges in modern nanoscience. Recent advances in the synthesis and crystallography of gold-thiolate nanoclusters have led to enormous progress ...

X-ray Spectroscopy Studies of Ligand-protected and Zeolite-confined Silver Nanoclusters

Chen, Ziyi (2020-08-24)

Ultrasmall silver nanoparticles, also known as silver nanoclusters (Ag NCs), are of interest because of their ultrahigh surface-to-volume ratio and strong quantum size effect. In this work, the studies of Ag NCs with ligand ...

X-ray spectroscopy studies on the surface structural characteristics and electronic properties of platinum nanoparticles.

Bayindir, Z.; Duchesne, P. N.; Cook, S. C.; MacDonald, M. A.; Zhang, P. (2009)

No abstract available.

X-ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects

Zhang, P.; Sham, TK (2003-06)

We report a study of the structure and electronic properties of a series of thiol-capped Au nanoparticles (NP) of nominal sizes of 1.6, 2.4, and 4.0 nm. Transmission electron microscopy, x-ray powder diffraction, x-ray ...

X-Ray studies of the structure and electronic behavior of alkanethiolate-capped gold nanoparticles: The interplay of size and surface effects - Reply

Zhang, P.; Sham, TK (2004-03)

No abstract available.